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Merge pull request #625 from tannewt/pulseio3

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Re-enable pulseio for SAMD21 and SAMD51
This commit is contained in:
Dan Halbert 2018-02-16 14:08:01 -05:00 committed by GitHub
commit cb39bfcad9
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GPG Key ID: 4AEE18F83AFDEB23
15 changed files with 1121 additions and 525 deletions
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9
main.c
View File

@ -146,6 +146,7 @@ bool start_mp(safe_mode_t safe_mode) {
const char *supported_filenames[] = STRING_LIST("code.txt", "code.py", "main.py", "main.txt");
const char *double_extension_filenames[] = STRING_LIST("code.txt.py", "code.py.txt", "code.txt.txt","code.py.py",
"main.txt.py", "main.py.txt", "main.txt.txt","main.py.py");
reset_mp();
found_main = maybe_run_list(supported_filenames, &result);
if (!found_main){
found_main = maybe_run_list(double_extension_filenames, &result);
@ -153,6 +154,9 @@ bool start_mp(safe_mode_t safe_mode) {
serial_write(MSG_DOUBLE_FILE_EXTENSION);
}
}
reset_port();
reset_board();
reset_status_led();
if (result.return_code & PYEXEC_FORCED_EXIT) {
@ -296,6 +300,7 @@ int __attribute__((used)) main(void) {
bool first_run = true;
for (;;) {
if (!skip_repl) {
reset_mp();
autoreload_suspend();
new_status_color(REPL_RUNNING);
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
@ -306,7 +311,6 @@ int __attribute__((used)) main(void) {
autoreload_resume();
reset_port();
reset_board();
reset_mp();
}
if (exit_code == PYEXEC_FORCED_EXIT) {
if (!first_run) {
@ -314,9 +318,6 @@ int __attribute__((used)) main(void) {
}
first_run = false;
skip_repl = start_mp(safe_mode);
reset_port();
reset_board();
reset_mp();
} else if (exit_code != 0) {
break;
}

10
ports/atmel-samd/Makefile
View File

@ -188,7 +188,6 @@ SRC_ASF := \
hpl/rtc/hpl_rtc.c \
hpl/sercom/hpl_sercom.c \
hpl/systick/hpl_systick.c \
hpl/tc/hpl_tc.c \
hpl/usb/hpl_usb.c \
usb/class/cdc/device/cdcdf_acm.c \
usb/class/msc/device/mscdf.c \
@ -227,6 +226,7 @@ SRC_C = \
peripherals.c \
$(CHIP_FAMILY)_pins.c \
tick.c \
timers.c \
usb.c \
usb_mass_storage.c \
boards/$(BOARD)/board.c \
@ -272,6 +272,10 @@ SRC_COMMON_HAL = \
analogio/__init__.c \
analogio/AnalogIn.c \
analogio/AnalogOut.c \
pulseio/__init__.c \
pulseio/PulseIn.c \
pulseio/PulseOut.c \
pulseio/PWMOut.c \
# audiobusio/__init__.c \
audiobusio/PDMIn.c \
audioio/__init__.c \
@ -279,10 +283,6 @@ SRC_COMMON_HAL = \
busio/UART.c \
nvm/__init__.c \
nvm/ByteArray.c \
pulseio/__init__.c \
pulseio/PulseIn.c \
pulseio/PulseOut.c \
pulseio/PWMOut.c \
touchio/__init__.c \
touchio/TouchIn.c \
usb_hid/__init__.c \

9
ports/atmel-samd/common-hal/microcontroller/Pin.h
View File

@ -40,14 +40,9 @@ typedef struct {
} pin_sercom_t;
typedef struct {
union {
Tc *const tc;
Tcc *const tcc;
};
#ifdef SAMD21
uint8_t index;
bool is_tc:1;
#endif
uint8_t wave_output:4;
uint8_t wave_output:7;
} pin_timer_t;
#ifdef SAMD21

424
ports/atmel-samd/common-hal/pulseio/PWMOut.c
View File

@ -30,32 +30,39 @@
#include "py/runtime.h"
#include "common-hal/pulseio/PWMOut.h"
#include "shared-bindings/pulseio/PWMOut.h"
#include "shared-bindings/microcontroller/Processor.h"
#include "atmel_start_pins.h"
#include "hal/utils/include/utils_repeat_macro.h"
#include "timers.h"
#include "samd21_pins.h"
#undef ENABLE
# define _TCC_SIZE(n,unused) TPASTE3(TCC,n,_SIZE),
# define TCC_SIZES { MREPEAT(TCC_INST_NUM, _TCC_SIZE, 0) }
# define _TCC_SIZE(unused, n) TCC ## n ## _SIZE,
# define TCC_SIZES { REPEAT_MACRO(_TCC_SIZE, 0, TCC_INST_NUM) }
uint32_t target_timer_frequencies[TC_INST_NUM + TCC_INST_NUM];
static uint32_t timer_periods[TC_INST_NUM + TCC_INST_NUM];
uint8_t timer_refcount[TC_INST_NUM + TCC_INST_NUM];
static uint32_t tcc_periods[TCC_INST_NUM];
static uint32_t tc_periods[TC_INST_NUM];
uint32_t target_tcc_frequencies[TCC_INST_NUM];
uint8_t tcc_refcount[TCC_INST_NUM];
const uint16_t prescaler[8] = {1, 2, 4, 8, 16, 64, 256, 1024};
// This bitmask keeps track of which channels of a TCC are currently claimed.
#ifdef SAMD21
uint8_t tcc_channels[3] = {0xf0, 0xfc, 0xfc};
#endif
#ifdef SAMD51
uint8_t tcc_channels[5] = {0xc0, 0xf0, 0xf8, 0xfc, 0xfc};
#endif
void pwmout_reset(void) {
// Reset all but TC5
for (int i = 0; i < TC_INST_NUM + TCC_INST_NUM; i++) {
if (i == 5) {
target_timer_frequencies[i] = 1000;
timer_refcount[i] = 1;
} else {
target_timer_frequencies[i] = 0;
timer_refcount[i] = 0;
}
// Reset all timers
for (int i = 0; i < TCC_INST_NUM; i++) {
target_tcc_frequencies[i] = 0;
tcc_refcount[i] = 0;
}
Tcc *tccs[TCC_INST_NUM] = TCC_INSTS;
for (int i = 0; i < TCC_INST_NUM; i++) {
@ -65,32 +72,31 @@ void pwmout_reset(void) {
while (tccs[i]->SYNCBUSY.bit.ENABLE == 1) {
}
}
// TODO(tannewt): Make this depend on the CMSIS.
if (i == 0) {
tcc_channels[i] = 0xf0;
} else {
tcc_channels[i] = 0xfc;
uint8_t mask = 0xff;
for (uint8_t j = 0; j < tcc_cc_num[i]; j++) {
mask <<= 1;
}
tcc_channels[i] = 0xf0;
tccs[i]->CTRLA.bit.SWRST = 1;
}
Tc *tcs[TC_INST_NUM] = TC_INSTS;
for (int i = 0; i < TC_INST_NUM; i++) {
if (tcs[i] == TC5) {
continue;
}
tcs[i]->COUNT16.CTRLA.bit.SWRST = 1;
while (tcs[i]->COUNT16.CTRLA.bit.SWRST == 1) {
}
}
}
bool channel_ok(const pin_timer_t* t, uint8_t index) {
return (!t->is_tc && (tcc_channels[index] & (1 << t->channel)) == 0) ||
t->is_tc;
static uint8_t tcc_channel(const pin_timer_t* t) {
// For the SAMD51 this hardcodes the use of OTMX == 0x0, the output matrix mapping, which uses
// SAMD21-style modulo mapping.
return t->wave_output % tcc_cc_num[t->index];
}
static uint8_t timer_index(uint32_t base_timer_address) {
return (base_timer_address - ((uint32_t) TCC0)) / 0x400;
bool channel_ok(const pin_timer_t* t) {
uint8_t channel_bit = 1 << tcc_channel(t);
return (!t->is_tc && ((tcc_channels[t->index] & channel_bit) == 0)) ||
t->is_tc;
}
void common_hal_pulseio_pwmout_construct(pulseio_pwmout_obj_t* self,
@ -101,7 +107,12 @@ void common_hal_pulseio_pwmout_construct(pulseio_pwmout_obj_t* self,
self->pin = pin;
self->variable_frequency = variable_frequency;
if (pin->primary_timer.tc == 0 && pin->secondary_timer.tc == 0) {
if (pin->timer[0].index >= TC_INST_NUM &&
pin->timer[1].index >= TCC_INST_NUM
#ifdef SAMD51
&& pin->timer[2].index >= TCC_INST_NUM
#endif
) {
mp_raise_ValueError("Invalid pin");
}
@ -109,72 +120,78 @@ void common_hal_pulseio_pwmout_construct(pulseio_pwmout_obj_t* self,
mp_raise_ValueError("Invalid PWM frequency");
}
uint16_t primary_timer_index = 0xff;
uint16_t secondary_timer_index = 0xff;
if (pin->primary_timer.tc != NULL) {
primary_timer_index = timer_index((uint32_t) pin->primary_timer.tcc);
}
if (pin->secondary_timer.tc != NULL) {
secondary_timer_index = timer_index((uint32_t) pin->secondary_timer.tcc);
}
// Figure out which timer we are using.
// First see if a timer is already going with the frequency we want and our
// channel is unused.
// NOTE(shawcroft): The enable bit is in the same position for TC and TCC so
// we treat them all as TCC for checking ENABLE.
const pin_timer_t* t = NULL;
uint8_t index = 0;
if (!variable_frequency &&
primary_timer_index != 0xff &&
target_timer_frequencies[primary_timer_index] == frequency &&
pin->primary_timer.tcc->CTRLA.bit.ENABLE == 1 &&
channel_ok(&pin->primary_timer, primary_timer_index)) {
t = &pin->primary_timer;
index = primary_timer_index;
self->tcc_instance.hw = t->tcc;
self->tcc_instance.double_buffering_enabled = true;
} else if (!variable_frequency &&
secondary_timer_index != 0xff &&
target_timer_frequencies[secondary_timer_index] == frequency &&
pin->secondary_timer.tcc->CTRLA.bit.ENABLE == 1 &&
channel_ok(&pin->secondary_timer, secondary_timer_index)) {
t = &pin->secondary_timer;
index = secondary_timer_index;
self->tcc_instance.hw = t->tcc;
self->tcc_instance.double_buffering_enabled = true;
} else {
// Pick an unused timer if available.
// Check the secondary timer first since its always a nicer TCC (when it
// exists)
if (pin->secondary_timer.tc != 0 &&
timer_refcount[secondary_timer_index] == 0 &&
pin->secondary_timer.tcc->CTRLA.bit.ENABLE == 0) {
t = &pin->secondary_timer;
index = secondary_timer_index;
} else if (pin->primary_timer.tc != 0 &&
(!pin->primary_timer.is_tc || pin->primary_timer.channel == 1) &&
timer_refcount[primary_timer_index] == 0) {
t = &pin->primary_timer;
index = primary_timer_index;
// First see if a tcc is already going with the frequency we want and our
// channel is unused. tc's don't have neough channels to share.
const pin_timer_t* timer = NULL;
uint8_t mux_position = 0;
if (!variable_frequency) {
for (uint8_t i = 0; i < TCC_INST_NUM && timer == NULL; i++) {
if (target_tcc_frequencies[i] != frequency) {
continue;
}
for (uint8_t j = 0; j < NUM_TIMERS_PER_PIN && timer == NULL; j++) {
const pin_timer_t* t = &pin->timer[j];
if (t->index != i || t->is_tc || t->index >= TCC_INST_NUM) {
continue;
}
Tcc* tcc = tcc_insts[t->index];
if (tcc->CTRLA.bit.ENABLE == 1 && channel_ok(t)) {
timer = t;
mux_position = j;
}
}
}
if (t == NULL) {
}
// No existing timer has been found, so find a new one to use and set it up.
if (timer == NULL) {
// By default, with fixed frequency we want to share a TCC because its likely we'll have
// other outputs at the same frequency. If the frequency is variable then we'll only have
// one output so we start with the TCs to see if they work.
int8_t direction = -1;
uint8_t start = NUM_TIMERS_PER_PIN - 1;
if (variable_frequency) {
direction = 1;
start = 0;
}
for (int8_t i = start; i >= 0 && i < NUM_TIMERS_PER_PIN && timer == NULL; i += direction) {
const pin_timer_t* t = &pin->timer[i];
if ((!t->is_tc && t->index >= TCC_INST_NUM) ||
(t->is_tc && t->index >= TC_INST_NUM)) {
continue;
}
if (t->is_tc) {
Tc* tc = tc_insts[t->index];
if (tc->COUNT16.CTRLA.bit.ENABLE == 0 && t->wave_output == 1) {
timer = t;
mux_position = i;
}
} else {
Tcc* tcc = tcc_insts[t->index];
if (tcc->CTRLA.bit.ENABLE == 0 && channel_ok(t)) {
timer = t;
mux_position = i;
}
}
}
if (timer == NULL) {
mp_raise_RuntimeError("All timers in use");
return;
}
uint8_t resolution = 0;
if (t->is_tc) {
if (timer->is_tc) {
resolution = 16;
} else {
// TCC resolution varies so look it up.
const uint8_t _tcc_sizes[TCC_INST_NUM] = TCC_SIZES;
resolution = _tcc_sizes[index];
resolution = _tcc_sizes[timer->index];
}
// First determine the divisor that gets us the highest resolution.
uint32_t system_clock = system_cpu_clock_get_hz();
uint32_t system_clock = common_hal_mcu_processor_get_frequency();
uint32_t top;
uint8_t divisor;
for (divisor = 0; divisor < 8; divisor++) {
@ -183,57 +200,54 @@ void common_hal_pulseio_pwmout_construct(pulseio_pwmout_obj_t* self,
break;
}
}
timer_periods[index] = top;
if (t->is_tc) {
struct tc_config config_tc;
tc_get_config_defaults(&config_tc);
config_tc.counter_size = TC_COUNTER_SIZE_16BIT;
config_tc.clock_prescaler = TC_CTRLA_PRESCALER(divisor);
config_tc.wave_generation = TC_WAVE_GENERATION_MATCH_PWM;
config_tc.counter_16_bit.compare_capture_channel[0] = top;
// We use the zeroeth clock on either port to go full speed.
turn_on_clocks(timer->is_tc, timer->index, 0);
enum status_code status = tc_init(&self->tc_instance, t->tc, &config_tc);
if (status != STATUS_OK) {
mp_raise_RuntimeError("Failed to init timer");
if (timer->is_tc) {
tc_periods[timer->index] = top;
Tc* tc = tc_insts[timer->index];
#ifdef SAMD21
tc->COUNT16.CTRLA.reg = TC_CTRLA_MODE_COUNT16 |
TC_CTRLA_PRESCALER(divisor) |
TC_CTRLA_WAVEGEN_MPWM;
tc->COUNT16.CC[0].reg = top;
#endif
#ifdef SAMD51
tc->COUNT16.CTRLA.bit.SWRST = 1;
while (tc->COUNT16.CTRLA.bit.SWRST == 1) {
}
tc_enable(&self->tc_instance);
tc_set_enable(tc, false);
tc->COUNT16.CTRLA.reg = TC_CTRLA_MODE_COUNT16 | TC_CTRLA_PRESCALER(divisor);
tc->COUNT16.WAVE.reg = TC_WAVE_WAVEGEN_MPWM;
tc->COUNT16.CCBUF[0].reg = top;
tc->COUNT16.CCBUF[1].reg = 0;
#endif
tc_set_enable(tc, true);
} else {
struct tcc_config config_tcc;
tcc_get_config_defaults(&config_tcc, t->tcc);
config_tcc.counter.clock_prescaler = divisor;
config_tcc.counter.period = top;
config_tcc.compare.wave_generation = TCC_WAVE_GENERATION_SINGLE_SLOPE_PWM;
enum status_code status = tcc_init(&self->tcc_instance, t->tcc, &config_tcc);
if (status != STATUS_OK) {
mp_raise_RuntimeError("Failed to init timer");
tcc_periods[timer->index] = top;
Tcc* tcc = tcc_insts[timer->index];
tcc_set_enable(tcc, false);
tcc->CTRLA.bit.PRESCALER = divisor;
tcc->PER.bit.PER = top;
tcc->WAVE.bit.WAVEGEN = TCC_WAVE_WAVEGEN_NPWM_Val;
tcc_set_enable(tcc, true);
target_tcc_frequencies[timer->index] = frequency;
tcc_refcount[timer->index]++;
if (variable_frequency) {
// We're changing frequency so claim all of the channels.
tcc_channels[timer->index] = 0xff;
} else {
tcc_channels[timer->index] |= (1 << tcc_channel(timer));
}
tcc_enable(&self->tcc_instance);
}
target_timer_frequencies[index] = frequency;
timer_refcount[index]++;
}
if (!t->is_tc) {
if (variable_frequency) {
// We're changing frequency so claim all of the channels.
tcc_channels[index] = 0xff;
} else {
tcc_channels[index] |= (1 << t->channel);
}
}
self->timer = t;
self->timer = timer;
// Connect the wave output to the outside world.
struct system_pinmux_config pin_config;
system_pinmux_get_config_defaults(&pin_config);
pin_config.mux_position = &self->pin->primary_timer == t ? MUX_E : MUX_F;
pin_config.direction = SYSTEM_PINMUX_PIN_DIR_OUTPUT;
system_pinmux_pin_set_config(pin->pin, &pin_config);
gpio_set_pin_function(pin->pin, GPIO_PIN_FUNCTION_E + mux_position);
common_hal_pulseio_pwmout_set_duty_cycle(self, duty);
}
@ -247,23 +261,22 @@ void common_hal_pulseio_pwmout_deinit(pulseio_pwmout_obj_t* self) {
return;
}
const pin_timer_t* t = self->timer;
uint8_t index = (((uint32_t) t->tcc) - ((uint32_t) TCC0)) / 0x400;
timer_refcount[index]--;
if (!t->is_tc) {
tcc_channels[index] &= ~(1 << t->channel);
}
if (timer_refcount[index] == 0) {
target_timer_frequencies[index] = 0;
if (t->is_tc) {
tc_disable(&self->tc_instance);
} else {
if (t->tcc == TCC0) {
tcc_channels[index] = 0xf0;
} else {
tcc_channels[index] = 0xfc;
if (t->is_tc) {
Tc* tc = tc_insts[t->index];
tc_set_enable(tc, false);
tc->COUNT16.CTRLA.bit.SWRST = true;
tc_wait_for_sync(tc);
} else {
tcc_refcount[t->index]--;
tcc_channels[t->index] &= ~(1 << tcc_channel(t));
if (tcc_refcount[t->index] == 0) {
target_tcc_frequencies[t->index] = 0;
Tcc* tcc = tcc_insts[t->index];
tcc_set_enable(tcc, false);
tcc->CTRLA.bit.SWRST = true;
while (tcc->SYNCBUSY.bit.SWRST != 0) {
/* Wait for sync */
}
tcc_disable(&self->tcc_instance);
tcc_reset(&self->tcc_instance);
}
}
reset_pin(self->pin->pin);
@ -272,35 +285,69 @@ void common_hal_pulseio_pwmout_deinit(pulseio_pwmout_obj_t* self) {
extern void common_hal_pulseio_pwmout_set_duty_cycle(pulseio_pwmout_obj_t* self, uint16_t duty) {
const pin_timer_t* t = self->timer;
uint8_t index;
if (t->is_tc) {
index = timer_index((uint32_t) self->timer->tc);
uint16_t adjusted_duty = timer_periods[index] * duty / 0xffff;
tc_set_compare_value(&self->tc_instance, t->channel, adjusted_duty);
uint16_t adjusted_duty = tc_periods[t->index] * duty / 0xffff;
#ifdef SAMD21
tc_insts[t->index]->COUNT16.CC[t->wave_output].reg = adjusted_duty;
#endif
#ifdef SAMD51
Tc* tc = tc_insts[t->index];
while (tc->COUNT16.SYNCBUSY.bit.CC1 != 0) {
// Wait for a previous value to be written. This can wait up to one period so we do
// other stuff in the meantime.
#ifdef MICROPY_VM_HOOK_LOOP
MICROPY_VM_HOOK_LOOP
#endif
}
tc->COUNT16.CCBUF[1].reg = adjusted_duty;
#endif
} else {
index = timer_index((uint32_t) self->timer->tcc);
uint32_t adjusted_duty = ((uint64_t) timer_periods[index]) * duty / 0xffff;
tcc_set_compare_value(&self->tcc_instance, t->channel, adjusted_duty);
uint32_t adjusted_duty = ((uint64_t) tcc_periods[t->index]) * duty / 0xffff;
uint8_t channel = tcc_channel(t);
Tcc* tcc = tcc_insts[t->index];
while ((tcc->SYNCBUSY.vec.CC & (1 << channel)) != 0) {
// Wait for a previous value to be written. This can wait up to one period so we do
// other stuff in the meantime.
#ifdef MICROPY_VM_HOOK_LOOP
MICROPY_VM_HOOK_LOOP
#endif
}
#ifdef SAMD21
tcc->CCB[channel].reg = adjusted_duty;
#endif
#ifdef SAMD51
tcc->CCBUF[channel].reg = adjusted_duty;
#endif
}
}
uint16_t common_hal_pulseio_pwmout_get_duty_cycle(pulseio_pwmout_obj_t* self) {
const pin_timer_t* t = self->timer;
if (t->is_tc) {
while (tc_is_syncing(&self->tc_instance)) {
/* Wait for sync */
}
uint16_t cv = t->tc->COUNT16.CC[t->channel].reg;
return cv * 0xffff / timer_periods[timer_index((uint32_t) self->timer->tc)];
Tc* tc = tc_insts[t->index];
tc_wait_for_sync(tc);
uint16_t cv = tc->COUNT16.CC[t->wave_output].reg;
return cv * 0xffff / tc_periods[t->index];
} else {
Tcc* tcc = tcc_insts[t->index];
uint8_t channel = tcc_channel(t);
uint32_t cv = 0;
if ((t->tcc->STATUS.vec.CCBV & (1 << t->channel)) != 0) {
cv = t->tcc->CCB[t->channel].reg;
#ifdef SAMD21
if ((tcc->STATUS.vec.CCBV & (1 << channel)) != 0) {
cv = tcc->CCB[channel].reg;
} else {
cv = t->tcc->CC[t->channel].reg;
cv = tcc->CC[channel].reg;
}
#endif
#ifdef SAMD51
if ((tcc->STATUS.vec.CCBUFV & (1 << channel)) != 0) {
cv = tcc->CCBUF[channel].reg;
} else {
cv = tcc->CC[channel].reg;
}
#endif
uint32_t duty_cycle = ((uint64_t) cv) * 0xffff / timer_periods[timer_index((uint32_t) self->timer->tcc)];
uint32_t duty_cycle = ((uint64_t) cv) * 0xffff / tcc_periods[t->index];
return duty_cycle;
}
@ -319,7 +366,7 @@ void common_hal_pulseio_pwmout_set_frequency(pulseio_pwmout_obj_t* self,
} else {
resolution = 24;
}
uint32_t system_clock = system_cpu_clock_get_hz();
uint32_t system_clock = common_hal_mcu_processor_get_frequency();
uint32_t new_top;
uint8_t new_divisor;
for (new_divisor = 0; new_divisor < 8; new_divisor++) {
@ -329,52 +376,59 @@ void common_hal_pulseio_pwmout_set_frequency(pulseio_pwmout_obj_t* self,
}
}
uint16_t old_duty = common_hal_pulseio_pwmout_get_duty_cycle(self);
uint8_t old_divisor;
uint8_t index;
if (t->is_tc) {
index = timer_index((uint32_t) self->timer->tc);
old_divisor = t->tc->COUNT16.CTRLA.bit.PRESCALER;
} else {
index = timer_index((uint32_t) self->timer->tcc);
old_divisor = t->tcc->CTRLA.bit.PRESCALER;
}
if (new_divisor != old_divisor) {
if (t->is_tc) {
tc_disable(&self->tc_instance);
t->tc->COUNT16.CTRLA.bit.PRESCALER = new_divisor;
tc_enable(&self->tc_instance);
} else {
tcc_disable(&self->tcc_instance);
t->tcc->CTRLA.bit.PRESCALER = new_divisor;
tcc_enable(&self->tcc_instance);
Tc* tc = tc_insts[t->index];
uint8_t old_divisor = tc->COUNT16.CTRLA.bit.PRESCALER;
if (new_divisor != old_divisor) {
tc_set_enable(tc, false);
tc->COUNT16.CTRLA.bit.PRESCALER = new_divisor;
tc_set_enable(tc, true);
}
}
timer_periods[index] = new_top;
if (t->is_tc) {
while (tc_is_syncing(&self->tc_instance)) {
tc_periods[t->index] = new_top;
#ifdef SAMD21
tc->COUNT16.CC[0].reg = new_top;
#endif
#ifdef SAMD51
while (tc->COUNT16.SYNCBUSY.reg != 0) {
/* Wait for sync */
}
t->tc->COUNT16.CC[0].reg = new_top;
tc->COUNT16.CCBUF[0].reg = new_top;
#endif
} else {
tcc_set_top_value(&self->tcc_instance, new_top);
Tcc* tcc = tcc_insts[t->index];
uint8_t old_divisor = tcc->CTRLA.bit.PRESCALER;
if (new_divisor != old_divisor) {
tcc_set_enable(tcc, false);
tcc->CTRLA.bit.PRESCALER = new_divisor;
tcc_set_enable(tcc, true);
}
tcc_periods[t->index] = new_top;
#ifdef SAMD21
tcc->PERB.bit.PERB = new_top;
#endif
#ifdef SAMD51
while (tcc->SYNCBUSY.reg != 0) {
/* Wait for sync */
}
tcc->PERBUF.bit.PERBUF = new_top;
#endif
}
common_hal_pulseio_pwmout_set_duty_cycle(self, old_duty);
}
uint32_t common_hal_pulseio_pwmout_get_frequency(pulseio_pwmout_obj_t* self) {
uint32_t system_clock = system_cpu_clock_get_hz();
uint32_t system_clock = common_hal_mcu_processor_get_frequency();
const pin_timer_t* t = self->timer;
uint8_t index;
uint8_t divisor;
uint32_t top;
if (t->is_tc) {
index = timer_index((uint32_t) self->timer->tc);
divisor = t->tc->COUNT16.CTRLA.bit.PRESCALER;
divisor = tc_insts[t->index]->COUNT16.CTRLA.bit.PRESCALER;
top = tc_periods[t->index];
} else {
index = timer_index((uint32_t) self->timer->tcc);
divisor = t->tcc->CTRLA.bit.PRESCALER;
divisor = tcc_insts[t->index]->CTRLA.bit.PRESCALER;
top = tcc_periods[t->index];
}
uint32_t top = timer_periods[index];
return (system_clock / prescaler[divisor]) / (top + 1);
}

4
ports/atmel-samd/common-hal/pulseio/PWMOut.h
View File

@ -36,10 +36,6 @@ typedef struct {
const mcu_pin_obj_t *pin;
const pin_timer_t* timer;
bool variable_frequency;
union {
struct tc_module tc_instance;
struct tcc_module tcc_instance;
};
} pulseio_pwmout_obj_t;
void pwmout_reset(void);

288
ports/atmel-samd/common-hal/pulseio/PulseIn.c
View File

@ -28,10 +28,8 @@
#include <stdint.h>
#include "asf/common2/services/delay/delay.h"
#include "asf/sam0/drivers/extint/extint.h"
#include "asf/sam0/drivers/extint/extint_callback.h"
#include "asf/sam0/drivers/port/port.h"
#include "atmel_start_pins.h"
#include "hal/include/hal_gpio.h"
#include "mpconfigport.h"
#include "py/gc.h"
@ -40,52 +38,94 @@
#include "shared-bindings/microcontroller/__init__.h"
#include "shared-bindings/pulseio/PulseIn.h"
#ifdef SAMD21
#include "hpl/gclk/hpl_gclk_base.h"
#endif
#include "tick.h"
static pulseio_pulsein_obj_t *active_pulseins[EIC_NUMBER_OF_INTERRUPTS];
static uint64_t last_ms[EIC_NUMBER_OF_INTERRUPTS];
static uint16_t last_us[EIC_NUMBER_OF_INTERRUPTS];
static pulseio_pulsein_obj_t *active_pulseins[EIC_EXTINT_NUM];
static uint64_t last_ms[EIC_EXTINT_NUM];
static uint16_t last_us[EIC_EXTINT_NUM];
bool eic_get_enable(void) {
#ifdef SAMD51
return EIC->CTRLA.bit.ENABLE;
#endif
#ifdef SAMD21
return EIC->CTRL.bit.ENABLE;
#endif
}
void eic_set_enable(bool value) {
#ifdef SAMD51
EIC->CTRLA.bit.ENABLE = value;
while (EIC->SYNCBUSY.bit.ENABLE != 0) {}
// This won't actually block long enough in Rev A of SAMD51 and will miss edges in the first
// three cycles of the peripheral clock. See the errata for details. It shouldn't impact us.
#endif
#ifdef SAMD21
EIC->CTRL.bit.ENABLE = value;
while (EIC->STATUS.bit.SYNCBUSY != 0) {}
#endif
}
void eic_reset(void) {
#ifdef SAMD51
EIC->CTRLA.bit.SWRST = true;
while (EIC->SYNCBUSY.bit.SWRST != 0) {}
// This won't actually block long enough in Rev A of SAMD51 and will miss edges in the first
// three cycles of the peripheral clock. See the errata for details. It shouldn't impact us.
#endif
#ifdef SAMD21
EIC->CTRL.bit.SWRST = true;
while (EIC->STATUS.bit.SYNCBUSY != 0) {}
#endif
}
void pulsein_reset(void) {
for (int i = 0; i < EIC_NUMBER_OF_INTERRUPTS; i++) {
if (active_pulseins[i] != NULL) {
extint_chan_disable_callback(i, EXTINT_CALLBACK_TYPE_DETECT);
}
for (int i = 0; i < EIC_EXTINT_NUM; i++) {
active_pulseins[i] = NULL;
last_ms[i] = 0;
last_us[i] = 0;
#ifdef SAMD51
NVIC_DisableIRQ(EIC_0_IRQn + i);
NVIC_ClearPendingIRQ(EIC_0_IRQn + i);
#endif
}
eic_reset();
#ifdef SAMD21
NVIC_DisableIRQ(EIC_IRQn);
NVIC_ClearPendingIRQ(EIC_IRQn);
#endif
}
static void pulsein_set_config(pulseio_pulsein_obj_t* self, bool first_edge) {
struct extint_chan_conf config;
extint_chan_get_config_defaults(&config);
config.gpio_pin = self->pin;
config.gpio_pin_pull = EXTINT_PULL_NONE;
config.filter_input_signal = true;
uint8_t sense_setting = EIC_CONFIG_FILTEN0;
if (!first_edge) {
config.detection_criteria = EXTINT_DETECT_BOTH;
sense_setting |= EIC_CONFIG_SENSE0_BOTH_Val;
} else if (self->idle_state) {
config.detection_criteria = EXTINT_DETECT_FALLING;
sense_setting |= EIC_CONFIG_SENSE0_FALL_Val;
} else {
config.detection_criteria = EXTINT_DETECT_RISING;
sense_setting |= EIC_CONFIG_SENSE0_RISE_Val;
}
extint_chan_disable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
extint_chan_set_config(self->channel, &config);
// Clear any interrupts that may have triggered without notifying the CPU.
EIC->INTFLAG.reg |= (1UL << self->channel);
extint_chan_enable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
eic_set_enable(false);
uint8_t config_index = self->channel / 8;
uint8_t position = (self->channel % 8) * 4;
uint32_t masked_value = EIC->CONFIG[config_index].reg & ~(0xf << position);
EIC->CONFIG[config_index].reg = masked_value | (sense_setting << position);
eic_set_enable(true);
}
static void pulsein_callback(void) {
static void pulsein_interrupt_handler(uint8_t channel) {
// Grab the current time first.
uint16_t current_us = tc_get_count_value(&ms_timer);
// Add the overflow flag to account for tick interrupts that are blocked by
// this interrupt.
uint64_t current_ms = ticks_ms + TC5->COUNT16.INTFLAG.bit.OVF;
pulseio_pulsein_obj_t* self = active_pulseins[extint_get_current_channel()];
current_us = current_us * 1000 / self->ticks_per_ms;
uint32_t current_us;
uint64_t current_ms;
current_tick(&current_ms, &current_us);
// current_tick gives us the remaining us until the next tick but we want the number since the
// last ms.
current_us = 1000 - current_us;
pulseio_pulsein_obj_t* self = active_pulseins[channel];
if (self->first_edge) {
self->first_edge = false;
pulsein_set_config(self, false);
@ -123,13 +163,21 @@ void common_hal_pulseio_pulsein_construct(pulseio_pulsein_obj_t* self,
if (!pin->has_extint) {
mp_raise_RuntimeError("No hardware support on pin");
}
// TODO(tannewt): Switch to checking actual extint peripheral state when other
// classes use extints.
if (active_pulseins[pin->extint_channel] != NULL) {
uint32_t mask = 1 << pin->extint_channel;
if (active_pulseins[pin->extint_channel] != NULL ||
(eic_get_enable() == 1 &&
#ifdef SAMD51
((EIC->INTENSET.bit.EXTINT & mask) != 0 ||
(EIC->EVCTRL.bit.EXTINTEO & mask) != 0))) {
#endif
#ifdef SAMD21
((EIC->INTENSET.vec.EXTINT & mask) != 0 ||
(EIC->EVCTRL.vec.EXTINTEO & mask) != 0))) {
#endif
mp_raise_RuntimeError("EXTINT channel already in use");
}
self->buffer = (uint16_t *) gc_alloc(maxlen * sizeof(uint16_t), false);
self->buffer = (uint16_t *) m_malloc(maxlen * sizeof(uint16_t), false);
if (self->buffer == NULL) {
mp_raise_msg_varg(&mp_type_MemoryError, "Failed to allocate RX buffer of %d bytes", maxlen * sizeof(uint16_t));
}
@ -140,16 +188,42 @@ void common_hal_pulseio_pulsein_construct(pulseio_pulsein_obj_t* self,
self->start = 0;
self->len = 0;
self->first_edge = true;
self->ticks_per_ms = (system_cpu_clock_get_hz() / 1000 - 1);
active_pulseins[pin->extint_channel] = self;
// Check to see if the EIC is enabled and start it up if its not.'
// SAMD51 EIC can only be clocked up to 100mhz so we use the 48mhz clock.
if (eic_get_enable() == 0) {
#ifdef SAMD51
MCLK->APBAMASK.bit.EIC_ = true;
hri_gclk_write_PCHCTRL_reg(GCLK, EIC_GCLK_ID,
GCLK_PCHCTRL_GEN_GCLK1_Val | (1 << GCLK_PCHCTRL_CHEN_Pos));
#endif
#ifdef SAMD21
PM->APBAMASK.bit.EIC_ = true;
_gclk_enable_channel(EIC_GCLK_ID, GCLK_CLKCTRL_GEN_GCLK0_Val);
#endif
#ifdef SAMD21
NVIC_DisableIRQ(EIC_IRQn);
NVIC_ClearPendingIRQ(EIC_IRQn);
NVIC_EnableIRQ(EIC_IRQn);
#endif
}
gpio_set_pin_function(pin->pin, GPIO_PIN_FUNCTION_A);
#ifdef SAMD51
NVIC_DisableIRQ(EIC_0_IRQn + self->channel);
NVIC_ClearPendingIRQ(EIC_0_IRQn + self->channel);
NVIC_EnableIRQ(EIC_0_IRQn + self->channel);
#endif
// Set config will enable the EIC.
pulsein_set_config(self, true);
extint_register_callback(
pulsein_callback,
self->channel,
EXTINT_CALLBACK_TYPE_DETECT);
extint_chan_enable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
EIC->INTENSET.reg = mask << EIC_INTENSET_EXTINT_Pos;
}
bool common_hal_pulseio_pulsein_deinited(pulseio_pulsein_obj_t* self) {
@ -160,38 +234,60 @@ void common_hal_pulseio_pulsein_deinit(pulseio_pulsein_obj_t* self) {
if (common_hal_pulseio_pulsein_deinited(self)) {
return;
}
extint_chan_disable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
uint32_t mask = 1 << self->channel;
EIC->INTENCLR.reg = mask << EIC_INTENSET_EXTINT_Pos;
#ifdef SAMD51
NVIC_DisableIRQ(EIC_0_IRQn + self->channel);
NVIC_ClearPendingIRQ(EIC_0_IRQn + self->channel);
#endif
active_pulseins[self->channel] = NULL;
reset_pin(self->pin);
self->pin = NO_PIN;
bool all_null = true;
for (uint8_t i = 0; all_null && i < 16; i++) {
all_null = all_null && active_pulseins[i] == NULL;
}
#ifdef SAMD21
if (all_null && EIC->INTENSET.reg == 0) {
NVIC_DisableIRQ(EIC_IRQn);
NVIC_ClearPendingIRQ(EIC_IRQn);
}
#endif
// Test if all channels are null and deinit everything if they are.
if (all_null && EIC->EVCTRL.reg == 0 && EIC->INTENSET.reg == 0) {
eic_set_enable(false);
#ifdef SAMD51
MCLK->APBAMASK.bit.EIC_ = false;
hri_gclk_write_PCHCTRL_reg(GCLK, EIC_GCLK_ID, 0);
#endif
#ifdef SAMD21
PM->APBAMASK.bit.EIC_ = false;
hri_gclk_write_CLKCTRL_reg(GCLK, GCLK_CLKCTRL_ID(EIC_GCLK_ID));
#endif
}
}
void common_hal_pulseio_pulsein_pause(pulseio_pulsein_obj_t* self) {
extint_chan_disable_callback(self->channel, EXTINT_CALLBACK_TYPE_DETECT);
uint32_t mask = 1 << self->channel;
EIC->INTENCLR.reg = mask << EIC_INTENSET_EXTINT_Pos;
}
void common_hal_pulseio_pulsein_resume(pulseio_pulsein_obj_t* self,
uint16_t trigger_duration) {
// Make sure we're paused.
common_hal_pulseio_pulsein_pause(self);
// Send the trigger pulse.
if (trigger_duration > 0) {
struct port_config pin_conf;
port_get_config_defaults(&pin_conf);
pin_conf.direction = PORT_PIN_DIR_OUTPUT;
pin_conf.input_pull = PORT_PIN_PULL_NONE;
port_pin_set_config(self->pin, &pin_conf);
// TODO(tannewt): delay_us isn't exactly correct so we adjust the value
// here before calling it. Find out why its not exact and fix it instead
// of hacking around it here.
uint32_t adjusted_duration = trigger_duration;
adjusted_duration *= 4;
adjusted_duration /= 5;
gpio_set_pin_pull_mode(self->pin, GPIO_PULL_OFF);
gpio_set_pin_direction(self->pin, GPIO_DIRECTION_OUT);
common_hal_mcu_disable_interrupts();
port_pin_set_output_level(self->pin, !self->idle_state);
common_hal_mcu_delay_us(adjusted_duration);
port_pin_set_output_level(self->pin, self->idle_state);
gpio_set_pin_level(self->pin, !self->idle_state);
common_hal_mcu_delay_us(trigger_duration);
gpio_set_pin_level(self->pin, self->idle_state);
common_hal_mcu_enable_interrupts();
}
@ -199,6 +295,12 @@ void common_hal_pulseio_pulsein_resume(pulseio_pulsein_obj_t* self,
last_ms[self->channel] = 0;
last_us[self->channel] = 0;
self->first_edge = true;
gpio_set_pin_function(self->pin, GPIO_PIN_FUNCTION_A);
uint32_t mask = 1 << self->channel;
// Clear previous interrupt state and re-enable it.
EIC->INTFLAG.reg = mask << EIC_INTFLAG_EXTINT_Pos;
EIC->INTENSET.reg = mask << EIC_INTENSET_EXTINT_Pos;
pulsein_set_config(self, true);
}
@ -244,3 +346,69 @@ uint16_t common_hal_pulseio_pulsein_get_item(pulseio_pulsein_obj_t* self,
common_hal_mcu_enable_interrupts();
return value;
}
void external_interrupt_handler(uint8_t channel) {
pulsein_interrupt_handler(channel);
EIC->INTFLAG.reg = (1 << channel) << EIC_INTFLAG_EXTINT_Pos;
}
#ifdef SAMD21
void EIC_Handler(void) {
for (uint8_t i = 0; i < 16; i++) {
if ((EIC->INTFLAG.vec.EXTINT & (1 << i)) != 0) {
external_interrupt_handler(i);
}
}
}
#endif
#ifdef SAMD51
void EIC_0_Handler(void) {
external_interrupt_handler(0);
}
void EIC_1_Handler(void) {
external_interrupt_handler(1);
}
void EIC_2_Handler(void) {
external_interrupt_handler(2);
}
void EIC_3_Handler(void) {
external_interrupt_handler(3);
}
void EIC_4_Handler(void) {
external_interrupt_handler(4);
}
void EIC_5_Handler(void) {
external_interrupt_handler(5);
}
void EIC_6_Handler(void) {
external_interrupt_handler(6);
}
void EIC_7_Handler(void) {
external_interrupt_handler(7);
}
void EIC_8_Handler(void) {
external_interrupt_handler(8);
}
void EIC_9_Handler(void) {
external_interrupt_handler(9);
}
void EIC_10_Handler(void) {
external_interrupt_handler(10);
}
void EIC_11_Handler(void) {
external_interrupt_handler(11);
}
void EIC_12_Handler(void) {
external_interrupt_handler(12);
}
void EIC_13_Handler(void) {
external_interrupt_handler(13);
}
void EIC_14_Handler(void) {
external_interrupt_handler(14);
}
void EIC_15_Handler(void) {
external_interrupt_handler(15);
}
#endif

1
ports/atmel-samd/common-hal/pulseio/PulseIn.h
View File

@ -41,7 +41,6 @@ typedef struct {
volatile uint16_t start;
volatile uint16_t len;
volatile bool first_edge;
uint16_t ticks_per_ms;
} pulseio_pulsein_obj_t;
void pulsein_reset(void);

102
ports/atmel-samd/common-hal/pulseio/PulseOut.c
View File

@ -28,22 +28,21 @@
#include <stdint.h>
#include "asf/sam0/drivers/tc/tc_interrupt.h"
#include "asf/sam0/drivers/port/port.h"
#include "hal/include/hal_gpio.h"
#include "mpconfigport.h"
#include "py/gc.h"
#include "py/runtime.h"
#include "samd21_pins.h"
#include "shared-bindings/pulseio/PulseOut.h"
#undef ENABLE
#include "timers.h"
// This timer is shared amongst all PulseOut objects under the assumption that
// the code is single threaded. Its stored in MICROPY_PORT_ROOT_POINTERS so it
// doesn't get garbage collected.
// the code is single threaded.
static uint8_t refcount = 0;
static uint8_t pulseout_tc_index = 0xff;
static __IO PORT_PINCFG_Type *active_pincfg = NULL;
static uint16_t *pulse_buffer = NULL;
static volatile uint16_t pulse_index = 0;
@ -58,7 +57,7 @@ static void turn_off(__IO PORT_PINCFG_Type * pincfg) {
pincfg->reg = PORT_PINCFG_RESETVALUE;
}
void pulse_finish(struct tc_module *const module) {
void pulse_finish(void) {
pulse_index++;
if (active_pincfg == NULL) {
@ -70,15 +69,27 @@ void pulse_finish(struct tc_module *const module) {
return;
}
current_compare = (current_compare + pulse_buffer[pulse_index] * 3 / 4) & 0xffff;
tc_set_compare_value(MP_STATE_VM(pulseout_tc_instance), TC_COMPARE_CAPTURE_CHANNEL_0, current_compare);
Tc* tc = tc_insts[pulseout_tc_index];
tc->COUNT16.CC[0].reg = current_compare;
if (pulse_index % 2 == 0) {
turn_on(active_pincfg);
}
}
void pulseout_interrupt_handler(uint8_t index) {
if (index != pulseout_tc_index) return;
Tc* tc = tc_insts[index];
if (!tc->COUNT16.INTFLAG.bit.MC0) return;
pulse_finish();
// Clear the interrupt bit.
tc->COUNT16.INTFLAG.reg = TC_INTFLAG_MC0;
}
void pulseout_reset() {
refcount = 0;
MP_STATE_VM(pulseout_tc_instance) = NULL;
pulseout_tc_index = 0xff;
active_pincfg = NULL;
}
@ -86,39 +97,50 @@ void common_hal_pulseio_pulseout_construct(pulseio_pulseout_obj_t* self,
const pulseio_pwmout_obj_t* carrier) {
if (refcount == 0) {
// Find a spare timer.
Tc *t = NULL;
Tc *tcs[TC_INST_NUM] = TC_INSTS;
for (uint8_t i = TC_INST_NUM; i > 0; i--) {
if (tcs[i - 1]->COUNT16.CTRLA.bit.ENABLE == 0) {
t = tcs[i - 1];
Tc *tc = NULL;
int8_t index = TC_INST_NUM - 1;
for (; index >= 0; index--) {
if (tc_insts[index]->COUNT16.CTRLA.bit.ENABLE == 0) {
tc = tc_insts[index];
break;
}
}
if (t == NULL) {
if (tc == NULL) {
mp_raise_RuntimeError("All timers in use");
}
MP_STATE_VM(pulseout_tc_instance) = gc_alloc(sizeof(struct tc_module), false);
if (t == NULL) {
mp_raise_msg(&mp_type_MemoryError, "");
}
struct tc_config config_tc;
tc_get_config_defaults(&config_tc);
pulseout_tc_index = index;
config_tc.counter_size = TC_COUNTER_SIZE_16BIT;
config_tc.clock_prescaler = TC_CTRLA_PRESCALER_DIV64;
config_tc.wave_generation = TC_WAVE_GENERATION_NORMAL_FREQ;
// We use GCLK0 for SAMD21 and GCLK1 for SAMD51 because they both run at 48mhz making our
// math the same across the boards.
#ifdef SAMD21
turn_on_clocks(true, index, 0);
#endif
#ifdef SAMD51
turn_on_clocks(true, index, 1);
#endif
tc_init(MP_STATE_VM(pulseout_tc_instance), t, &config_tc);
tc_register_callback(MP_STATE_VM(pulseout_tc_instance), pulse_finish, TC_CALLBACK_CC_CHANNEL0);
tc_enable(MP_STATE_VM(pulseout_tc_instance));
tc_stop_counter(MP_STATE_VM(pulseout_tc_instance));
#ifdef SAMD21
tc->COUNT16.CTRLA.reg = TC_CTRLA_MODE_COUNT16 |
TC_CTRLA_PRESCALER_DIV64 |
TC_CTRLA_WAVEGEN_NFRQ;
#endif
#ifdef SAMD51
tc_reset(tc);
tc_set_enable(tc, false);
tc->COUNT16.CTRLA.reg = TC_CTRLA_MODE_COUNT16 | TC_CTRLA_PRESCALER_DIV64;
tc->COUNT16.WAVE.reg = TC_WAVE_WAVEGEN_NFRQ;
#endif
tc_set_enable(tc, true);
tc->COUNT16.CTRLBSET.reg = TC_CTRLBSET_CMD_STOP;
}
refcount++;
self->pin = carrier->pin->pin;
PortGroup *const port_base = port_get_group_from_gpio_pin(self->pin);
PortGroup *const port_base = &PORT->Group[GPIO_PORT(self->pin)];
self->pincfg = &port_base->PINCFG[self->pin % 32];
// Set the port to output a zero.
@ -137,16 +159,15 @@ void common_hal_pulseio_pulseout_deinit(pulseio_pulseout_obj_t* self) {
if (common_hal_pulseio_pulseout_deinited(self)) {
return;
}
PortGroup *const port_base = port_get_group_from_gpio_pin(self->pin);
PortGroup *const port_base = &PORT->Group[GPIO_PORT(self->pin)];
port_base->DIRCLR.reg = 1 << (self->pin % 32);
turn_on(self->pincfg);
refcount--;
if (refcount == 0) {
tc_reset(MP_STATE_VM(pulseout_tc_instance));
gc_free(MP_STATE_VM(pulseout_tc_instance));
MP_STATE_VM(pulseout_tc_instance) = NULL;
tc_reset(tc_insts[pulseout_tc_index]);
pulseout_tc_index = 0xff;
}
self->pin = NO_PIN;
}
@ -161,11 +182,15 @@ void common_hal_pulseio_pulseout_send(pulseio_pulseout_obj_t* self, uint16_t* pu
pulse_length = length;
current_compare = pulses[0] * 3 / 4;
tc_set_compare_value(MP_STATE_VM(pulseout_tc_instance), TC_COMPARE_CAPTURE_CHANNEL_0, current_compare);
Tc* tc = tc_insts[pulseout_tc_index];
tc->COUNT16.CC[0].reg = current_compare;
tc_enable_callback(MP_STATE_VM(pulseout_tc_instance), TC_CALLBACK_CC_CHANNEL0);
// Clear our interrupt in case it was set earlier
tc->COUNT16.INTFLAG.reg = TC_INTFLAG_MC0;
tc->COUNT16.INTENSET.reg = TC_INTENSET_MC0;
tc_enable_interrupts(pulseout_tc_index);
turn_on(active_pincfg);
tc_start_counter(MP_STATE_VM(pulseout_tc_instance));
tc->COUNT16.CTRLBSET.reg = TC_CTRLBSET_CMD_RETRIGGER;
while(pulse_index < length) {
// Do other things while we wait. The interrupts will handle sending the
@ -175,7 +200,8 @@ void common_hal_pulseio_pulseout_send(pulseio_pulseout_obj_t* self, uint16_t* pu
#endif
}
tc_stop_counter(MP_STATE_VM(pulseout_tc_instance));
tc_disable_callback(MP_STATE_VM(pulseout_tc_instance), TC_CALLBACK_CC_CHANNEL0);
tc->COUNT16.CTRLBSET.reg = TC_CTRLBSET_CMD_STOP;
tc->COUNT16.INTENCLR.reg = TC_INTENCLR_MC0;
tc_disable_interrupts(pulseout_tc_index);
active_pincfg = NULL;
}

1
ports/atmel-samd/common-hal/pulseio/PulseOut.h
View File

@ -38,5 +38,6 @@ typedef struct {
} pulseio_pulseout_obj_t;
void pulseout_reset(void);
void pulseout_interrupt_handler(uint8_t index);
#endif // MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_PULSEIO_PULSEOUT_H

5
ports/atmel-samd/mpconfigport.h
View File

@ -197,7 +197,7 @@ extern const struct _mp_obj_module_t usb_hid_module;
{ MP_OBJ_NEW_QSTR(MP_QSTR_bitbangio), (mp_obj_t)&bitbangio_module }
// { MP_OBJ_NEW_QSTR(MP_QSTR_audioio), (mp_obj_t)&audioio_module },
// { MP_OBJ_NEW_QSTR(MP_QSTR_audiobusio), (mp_obj_t)&audiobusio_module },
// { MP_OBJ_NEW_QSTR(MP_QSTR_pulseio), (mp_obj_t)&pulseio_module },
// { MP_OBJ_NEW_QSTR(MP_QSTR_gamepad),(mp_obj_t)&gamepad_module },
#define EXPRESS_BOARD
#else
#define MICROPY_PY_BUILTINS_REVERSED (0)
@ -212,7 +212,6 @@ extern const struct _mp_obj_module_t usb_hid_module;
// Disabled for now.
// { MP_OBJ_NEW_QSTR(MP_QSTR_touchio), (mp_obj_t)&touchio_module },
// { MP_OBJ_NEW_QSTR(MP_QSTR_gamepad),(mp_obj_t)&gamepad_module },
// { MP_OBJ_NEW_QSTR(MP_QSTR__stage), (mp_obj_t)&stage_module },
// { MP_OBJ_NEW_QSTR(MP_QSTR_usb_hid),(mp_obj_t)&usb_hid_module },
@ -225,6 +224,7 @@ extern const struct _mp_obj_module_t usb_hid_module;
{ MP_OBJ_NEW_QSTR(MP_QSTR_microcontroller), (mp_obj_t)&microcontroller_module }, \
{ MP_OBJ_NEW_QSTR(MP_QSTR_neopixel_write),(mp_obj_t)&neopixel_write_module }, \
{ MP_OBJ_NEW_QSTR(MP_QSTR_os), (mp_obj_t)&os_module }, \
{ MP_OBJ_NEW_QSTR(MP_QSTR_pulseio), (mp_obj_t)&pulseio_module }, \
{ MP_OBJ_NEW_QSTR(MP_QSTR_random), (mp_obj_t)&random_module }, \
{ MP_OBJ_NEW_QSTR(MP_QSTR_storage), (mp_obj_t)&storage_module }, \
{ MP_OBJ_NEW_QSTR(MP_QSTR_struct), (mp_obj_t)&struct_module }, \
@ -260,7 +260,6 @@ extern const struct _mp_obj_module_t usb_hid_module;
struct dac_module* audioout_dac_instance; \
struct events_resource* audioout_sample_event; \
struct events_resource* audioout_dac_event; \
struct tc_module* pulseout_tc_instance; \
FLASH_ROOT_POINTERS \
void run_background_tasks(void);

152
ports/atmel-samd/samd21_pins.c
View File

@ -41,18 +41,18 @@
.index = 0, \
.pad = 0 \
}
#define TCC(p_tcc, p_wave_output) \
#define TCC(p_index, p_wave_output) \
{ \
.tcc = p_tcc, \
.index = p_index, \
.is_tc = false, \
.wave_output = p_wave_output \
}
#define TC(p_tc, p_wave_output) \
#define TC(p_index, p_wave_output) \
{ \
.tc = p_tc, \
.index = p_index - 3, \
.is_tc = true, \
.wave_output = p_wave_output \
}
@ -101,14 +101,14 @@ const mcu_pin_obj_t pin_## p_name = { \
PIN(PA00, EXTINT_CHANNEL(0), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(1, 0),
TCC(TCC2, 0),
TCC(2, 0),
NO_TIMER);
#endif
#ifdef PIN_PA01
PIN(PA01, EXTINT_CHANNEL(1), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(1, 1),
TCC(TCC2, 1),
TCC(2, 1),
NO_TIMER);
#endif
#ifdef PIN_PA02
@ -163,105 +163,105 @@ PIN(PB07, EXTINT_CHANNEL(7), ADC_INPUT(15), TOUCH(13),
PIN(PB08, EXTINT_CHANNEL(8), ADC_INPUT(2), TOUCH(14),
NO_SERCOM,
SERCOM(4, 0),
TC(TC4, 0),
TC(4, 0),
NO_TIMER);
#endif
#ifdef PIN_PB09
PIN(PB09, EXTINT_CHANNEL(9), ADC_INPUT(3), TOUCH(15),
NO_SERCOM,
SERCOM(4, 1),
TC(TC4, 1),
TC(4, 1),
NO_TIMER);
#endif
#ifdef PIN_PA04
PIN(PA04, EXTINT_CHANNEL(4), ADC_INPUT(4), TOUCH(2),
NO_SERCOM,
SERCOM(0, 0),
TCC(TCC0, 0),
TCC(0, 0),
NO_TIMER);
#endif
#ifdef PIN_PA05
PIN(PA05, EXTINT_CHANNEL(5), ADC_INPUT(5), TOUCH(3),
NO_SERCOM,
SERCOM(0, 1),
TCC(TCC0, 1),
TCC(0, 1),
NO_TIMER);
#endif
#ifdef PIN_PA06
PIN(PA06, EXTINT_CHANNEL(6), ADC_INPUT(6), TOUCH(4),
NO_SERCOM,
SERCOM(0, 2),
TCC(TCC1, 0),
TCC(1, 0),
NO_TIMER);
#endif
#ifdef PIN_PA07
PIN(PA07, EXTINT_CHANNEL(7), ADC_INPUT(7), TOUCH(5),
NO_SERCOM,
SERCOM(0, 3),
TCC(TCC1, 1),
TCC(1, 1),
NO_TIMER);
#endif
#ifdef PIN_PA08
PIN(PA08, NO_EXTINT, ADC_INPUT(16), NO_TOUCH,
SERCOM(0, 0),
SERCOM(2, 0),
TCC(TCC0, 0),
TCC(TCC1, 2));
TCC(0, 0),
TCC(1, 2));
#endif
#ifdef PIN_PA09
PIN(PA09, EXTINT_CHANNEL(9), ADC_INPUT(17), NO_TOUCH,
SERCOM(0, 1),
SERCOM(2, 1),
TCC(TCC0, 1),
TCC(TCC1, 3));
TCC(0, 1),
TCC(1, 3));
#endif
#ifdef PIN_PA10
PIN(PA10, EXTINT_CHANNEL(10), ADC_INPUT(18), NO_TOUCH,
SERCOM(0, 2),
SERCOM(2, 2),
TCC(TCC1, 0),
TCC(TCC0, 2));
TCC(1, 0),
TCC(0, 2));
#endif
#ifdef PIN_PA11
PIN(PA11, EXTINT_CHANNEL(11), ADC_INPUT(19), NO_TOUCH,
SERCOM(0, 3),
SERCOM(2, 3),
TCC(TCC1, 1),
TCC(TCC0, 3));
TCC(1, 1),
TCC(0, 3));
#endif
#ifdef PIN_PB10
PIN(PB10, EXTINT_CHANNEL(10), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(4, 2),
TC(TC5, 0),
TCC(TCC0, 4));
TC(5, 0),
TCC(0, 4));
#endif
#ifdef PIN_PB11
PIN(PB11, EXTINT_CHANNEL(11), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(4, 3),
TC(TC5, 1),
TCC(TCC0, 5));
TC(5, 1),
TCC(0, 5));
#endif
#ifdef PIN_PB12
PIN(PB12, EXTINT_CHANNEL(12), NO_ADC, NO_TOUCH,
SERCOM(4, 0),
NO_SERCOM,
TC(TC4, 0),
TCC(TCC0, 6));
TC(4, 0),
TCC(0, 6));
#endif
#ifdef PIN_PB13
PIN(PB13, EXTINT_CHANNEL(13), NO_ADC, NO_TOUCH,
SERCOM(4, 1),
NO_SERCOM,
TC(TC4, 1),
TCC(TCC0, 7));
TC(4, 1),
TCC(0, 7));
#endif
#ifdef PIN_PB14
PIN(PB14, EXTINT_CHANNEL(14), NO_ADC, NO_TOUCH,
SERCOM(4, 2),
NO_SERCOM,
TC(TC5, 0),
TC(5, 0),
NO_TIMER);
#endif
@ -270,22 +270,22 @@ PIN(PB14, EXTINT_CHANNEL(14), NO_ADC, NO_TOUCH,
PIN(PB15, EXTINT_CHANNEL(15), NO_ADC, NO_TOUCH,
SERCOM(4, 3),
NO_SERCOM,
TC(TC5, 1),
TC(5, 1),
NO_TIMER);
#endif
#ifdef PIN_PA12
PIN(PA12, EXTINT_CHANNEL(12), NO_ADC, NO_TOUCH,
SERCOM(2, 0),
SERCOM(4, 0),
TCC(TCC2, 0),
TCC(TCC0, 6));
TCC(2, 0),
TCC(0, 6));
#endif
#ifdef PIN_PA13
PIN(PA13, EXTINT_CHANNEL(13), NO_ADC, NO_TOUCH,
SERCOM(2, 1),
SERCOM(4, 1),
TCC(TCC2, 1),
TCC(TCC0, 7));
TCC(2, 1),
TCC(0, 7));
#endif
#ifdef PIN_PA14
PIN(PA14, EXTINT_CHANNEL(14), NO_ADC, NO_TOUCH,
@ -295,8 +295,8 @@ PIN(PA14, EXTINT_CHANNEL(14), NO_ADC, NO_TOUCH,
#else
NO_SERCOM,
#endif
TC(TC3, 0),
TCC(TCC0, 4));
TC(3, 0),
TCC(0, 4));
#endif
#ifdef PIN_PA15
PIN(PA15, EXTINT_CHANNEL(15), NO_ADC, NO_TOUCH,
@ -306,80 +306,80 @@ PIN(PA15, EXTINT_CHANNEL(15), NO_ADC, NO_TOUCH,
#else
NO_SERCOM,
#endif
TC(TC3, 1),
TCC(TCC0, 5));
TC(3, 1),
TCC(0, 5));
#endif
#ifdef PIN_PA16
PIN(PA16, EXTINT_CHANNEL(0), NO_ADC, NO_TOUCH,
SERCOM(1, 0),
SERCOM(3, 0),
TCC(TCC2, 0),
TCC(TCC0, 6));
TCC(2, 0),
TCC(0, 6));
#endif
#ifdef PIN_PA17
PIN(PA17, EXTINT_CHANNEL(1), NO_ADC, NO_TOUCH,
SERCOM(1, 1),
SERCOM(3, 1),
TCC(TCC2, 1),
TCC(TCC0, 7));
TCC(2, 1),
TCC(0, 7));
#endif
#ifdef PIN_PA18
PIN(PA18, EXTINT_CHANNEL(2), NO_ADC, NO_TOUCH,
SERCOM(1, 2),
SERCOM(3, 2),
TC(TC3, 0),
TCC(TCC0, 2));
TC(3, 0),
TCC(0, 2));
#endif
#ifdef PIN_PA19
PIN(PA19, EXTINT_CHANNEL(3), NO_ADC, NO_TOUCH,
SERCOM(1, 3),
SERCOM(3, 3),
TC(TC3, 1),
TCC(TCC0, 3));
TC(3, 1),
TCC(0, 3));
#endif
#ifdef PIN_PB16
PIN(PB16, EXTINT_CHANNEL(0), NO_ADC, NO_TOUCH,
SERCOM(5, 0),
NO_SERCOM,
#ifdef TC6
TC(TC6, 0),
TC(6, 0),
#else
NO_TIMER,
#endif
TCC(TCC0, 4));
TCC(0, 4));
#endif
#ifdef PIN_PB17
PIN(PB17, EXTINT_CHANNEL(1), NO_ADC, NO_TOUCH,
SERCOM(5, 1),
NO_SERCOM,
#ifdef TC6
TC(TC6, 1),
TC(6, 1),
#else
NO_TIMER,
#endif
TCC(TCC0, 5));
TCC(0, 5));
#endif
#ifdef PIN_PA20
PIN(PA20, EXTINT_CHANNEL(4), NO_ADC, NO_TOUCH,
SERCOM(5, 2),
SERCOM(3, 2),
#ifdef TC7
TC(TC7, 0),
TC(7, 0),
#else
NO_TIMER,
#endif
TCC(TCC0, 6));
TCC(0, 6));
#endif
#ifdef PIN_PA21
PIN(PA21, EXTINT_CHANNEL(5), NO_ADC, NO_TOUCH,
SERCOM(5, 3),
SERCOM(3, 3),
#ifdef TC7
TC(TC7, 1),
TC(7, 1),
#else
NO_TIMER,
#endif
TCC(TCC0, 7));
TCC(0, 7));
#endif
#ifdef PIN_PA22
PIN(PA22, EXTINT_CHANNEL(6), NO_ADC, NO_TOUCH,
@ -388,9 +388,9 @@ PIN(PA22, EXTINT_CHANNEL(6), NO_ADC, NO_TOUCH,
SERCOM(5, 0),
#else
NO_SERCOM,
#endif,
TC(TC4, 0),
TCC(TCC0, 4));
#endif
TC(4, 0),
TCC(0, 4));
#endif
#ifdef PIN_PA23
PIN(PA23, EXTINT_CHANNEL(7), NO_ADC, NO_TOUCH,
@ -400,8 +400,8 @@ PIN(PA23, EXTINT_CHANNEL(7), NO_ADC, NO_TOUCH,
#else
NO_SERCOM,
#endif
TC(TC4, 1),
TCC(TCC0, 5));
TC(4, 1),
TCC(0, 5));
#endif
#ifdef PIN_PA24
PIN(PA24, EXTINT_CHANNEL(12), NO_ADC, NO_TOUCH,
@ -411,8 +411,8 @@ PIN(PA24, EXTINT_CHANNEL(12), NO_ADC, NO_TOUCH,
#else
NO_SERCOM,
#endif
TC(TC5, 0),
TCC(TCC0, 2));
TC(5, 0),
TCC(0, 2));
#endif
#ifdef PIN_PA25
PIN(PA25, EXTINT_CHANNEL(13), NO_ADC, NO_TOUCH,
@ -422,15 +422,15 @@ PIN(PA25, EXTINT_CHANNEL(13), NO_ADC, NO_TOUCH,
#else
NO_SERCOM,
#endif
TC(TC5, 1),
TCC(TCC1, 3));
TC(5, 1),
TCC(1, 3));
#endif
#ifdef PIN_PB22
PIN(PB22, EXTINT_CHANNEL(6), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(5, 2),
#ifdef TC7
TC(TC7, 0, 0),
TC(7, 0, 0),
#else
NO_TIMER,
#endif
@ -441,7 +441,7 @@ PIN(PB23, EXTINT_CHANNEL(7), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(5, 3),
#ifdef TC7
TC(TC7, 1, 1),
TC(7, 1, 1),
#else
NO_TIMER,
#endif
@ -465,36 +465,36 @@ PIN(PA28, EXTINT_CHANNEL(8), NO_ADC, NO_TOUCH,
PIN(PA30, EXTINT_CHANNEL(10), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(1, 2),
TCC(TCC1, 0),
TCC(1, 0),
NO_TIMER);
#endif
#ifdef PIN_PA31
PIN(PA31, EXTINT_CHANNEL(11), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(1, 3),
TCC(TCC1, 1),
TCC(1, 1),
NO_TIMER);
#endif
#ifdef PIN_PB30
PIN(PB30, EXTINT_CHANNEL(14), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(5, 0),
TCC(TCC0, 0),
TCC(TCC1, 2));
TCC(0, 0),
TCC(1, 2));
#endif
#ifdef PIN_PB31
PIN(PB31, EXTINT_CHANNEL(15), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(5, 1),
TCC(TCC0, 1),
TCC(TCC1, 3));
TCC(0, 1),
TCC(1, 3));
#endif
#ifdef PIN_PB00
PIN(PB00, EXTINT_CHANNEL(0), ADC_INPUT(8), TOUCH(6),
NO_SERCOM,
SERCOM(5, 2),
#ifdef TC7
TC(TC7, 0, 0),
TC(7, 0, 0),
#else
NO_TIMER,
#endif
@ -505,7 +505,7 @@ PIN(PB01, EXTINT_CHANNEL(1), ADC_INPUT(9), TOUCH(7),
NO_SERCOM,
SERCOM(5, 3)),
#ifdef TC7
TC(TC7, 1),
TC(7, 1),
#else
NO_TIMER,
#endif
@ -516,7 +516,7 @@ PIN(PB02, EXTINT_CHANNEL(2), ADC_INPUT(10), TOUCH(8),
NO_SERCOM,
SERCOM(5, 0),
#ifdef TC6
TC(TC6, 0),
TC(6, 0),
#else
NO_TIMER,
#endif
@ -527,7 +527,7 @@ PIN(PB03, EXTINT_CHANNEL(3), ADC_INPUT(11), TOUCH(9),
NO_SERCOM,
SERCOM(5, 1),
#ifdef TC6
TC(TC6, 1),
TC(6, 1),
#else
NO_TIMER,
#endif

280
ports/atmel-samd/samd51_pins.c
View File

@ -42,19 +42,21 @@
.pad = 0 \
}
#define TCC(p_tcc, p_wave_output) \
#define TCC(p_index, p_wave_output) \
{ \
.tcc = p_tcc, \
.index = p_index, \
.is_tc = false, \
.wave_output = p_wave_output \
}
#define TC(p_tc, p_wave_output) \
#define TC(p_index, p_wave_output) \
{ \
.tc = p_tc, \
.index = p_index, \
.is_tc = true, \
.wave_output = p_wave_output \
}
#define NO_TIMER TCC(0, 0)
#define NO_TIMER TCC(0xff, 0)
#define TOUCH(y_line) \
.has_touch = true, \
@ -100,7 +102,7 @@ PIN(PB03, EXTINT_CHANNEL(3), ADC_INPUT(15), NO_ADC,
NO_SERCOM,
SERCOM(5, 1),
#ifdef TC6
TC(TC6, 1),
TC(6, 1),
#else
NO_TIMER,
#endif
@ -112,7 +114,7 @@ PIN(PA00, EXTINT_CHANNEL(0), NO_ADC, NO_ADC,
NO_TOUCH,
NO_SERCOM,
SERCOM(1, 0),
TC(TC2, 0),
TC(2, 0),
NO_TIMER,
NO_TIMER);
#endif
@ -121,7 +123,7 @@ PIN(PA01, EXTINT_CHANNEL(1), NO_ADC, NO_ADC,
NO_TOUCH,
NO_SERCOM,
SERCOM(1, 1),
TC(TC2, 0),
TC(2, 0),
NO_TIMER,
NO_TIMER);
#endif
@ -252,7 +254,7 @@ PIN(PB08, EXTINT_CHANNEL(8), ADC_INPUT(2), ADC_INPUT(0), TOUCH(1),
NO_SERCOM,
SERCOM(4, 0),
#ifdef TC4
TC(TC4, 0),
TC(4, 0),
#else
NO_TIMER,
#endif
@ -264,7 +266,7 @@ PIN(PB09, EXTINT_CHANNEL(9), ADC_INPUT(3), ADC_INPUT(1), TOUCH(2),
NO_SERCOM,
SERCOM(4, 1),
#ifdef TC4
TC(TC4, 1),
TC(4, 1),
#else
NO_TIMER,
#endif
@ -275,7 +277,7 @@ PIN(PB09, EXTINT_CHANNEL(9), ADC_INPUT(3), ADC_INPUT(1), TOUCH(2),
PIN(PA04, EXTINT_CHANNEL(4), ADC_INPUT(4), NO_ADC, TOUCH(3),
NO_SERCOM,
SERCOM(0, 0),
TC(TC0, 0),
TC(0, 0),
NO_TIMER,
NO_TIMER);
#endif
@ -283,7 +285,7 @@ PIN(PA04, EXTINT_CHANNEL(4), ADC_INPUT(4), NO_ADC, TOUCH(3),
PIN(PA05, EXTINT_CHANNEL(5), ADC_INPUT(5), NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(0, 1),
TC(TC0, 1),
TC(0, 1),
NO_TIMER,
NO_TIMER);
#endif
@ -291,7 +293,7 @@ PIN(PA05, EXTINT_CHANNEL(5), ADC_INPUT(5), NO_ADC, NO_TOUCH,
PIN(PA06, EXTINT_CHANNEL(6), ADC_INPUT(6), NO_ADC, TOUCH(4),
NO_SERCOM,
SERCOM(0, 2),
TC(TC1, 0),
TC(1, 0),
NO_TIMER,
NO_TIMER);
#endif
@ -301,7 +303,7 @@ PIN(PA06, EXTINT_CHANNEL(6), ADC_INPUT(6), NO_ADC, TOUCH(4),
PIN(PA07, EXTINT_CHANNEL(7), ADC_INPUT(7), NO_ADC, TOUCH(5),
NO_SERCOM,
SERCOM(0, 3),
TC(TC1, 1),
TC(1, 1),
NO_TIMER,
NO_TIMER);
#endif
@ -314,7 +316,7 @@ PIN(PC04, EXTINT_CHANNEL(4), NO_ADC, NO_ADC, NO_TOUCH,
#endif
NO_SERCOM,
NO_TIMER,
TCC(TCC0, 0),
TCC(0, 0),
NO_TIMER);
#endif
#ifdef PIN_PC05
@ -357,57 +359,57 @@ PIN(PC07, EXTINT_CHANNEL(7), NO_ADC, NO_ADC, NO_TOUCH,
PIN(PA08, NO_EXTINT, ADC_INPUT(8), ADC_INPUT(2), TOUCH(6),
SERCOM(0, 0),
SERCOM(2, 1),
TC(TC0, 0),
TCC(TCC0, 0),
TCC(TCC1, 4));
TC(0, 0),
TCC(0, 0),
TCC(1, 4));
#endif
#ifdef PIN_PA09
PIN(PA09, EXTINT_CHANNEL(9), ADC_INPUT(9), ADC_INPUT(3), TOUCH(7),
SERCOM(0, 1),
SERCOM(2, 0),
TC(TC0, 1),
TCC(TCC0, 1),
TCC(TCC1, 5));
TC(0, 1),
TCC(0, 1),
TCC(1, 5));
#endif
#ifdef PIN_PA10
PIN(PA10, EXTINT_CHANNEL(10), ADC_INPUT(10), NO_ADC, TOUCH(8),
SERCOM(0, 2),
SERCOM(2, 2),
TC(TC1, 0),
TCC(TCC0, 2),
TCC(TCC1, 6));
TC(1, 0),
TCC(0, 2),
TCC(1, 6));
#endif
#ifdef PIN_PA11
PIN(PA11, EXTINT_CHANNEL(11), ADC_INPUT(11), NO_ADC, TOUCH(9),
SERCOM(0, 3),
SERCOM(2, 3),
TC(TC1, 0),
TCC(TCC0, 3),
TCC(TCC1, 7));
TC(1, 0),
TCC(0, 3),
TCC(1, 7));
#endif
#ifdef PIN_PB10
PIN(PB10, EXTINT_CHANNEL(10), NO_ADC, NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(4, 2),
#ifdef TC5
TC(TC5, 0),
TC(5, 0),
#else
NO_TIMER,
#endif
TCC(TCC0, 4),
TCC(TCC1, 0));
TCC(0, 4),
TCC(1, 0));
#endif
#ifdef PIN_PB11
PIN(PB11, EXTINT_CHANNEL(11), NO_ADC, NO_ADC, NO_TOUCH,
NO_SERCOM,
SERCOM(4, 3),
#ifdef TC5
TC(TC5, 1),
TC(5, 1),
#else
NO_TIMER,
#endif
TCC(TCC0, 5),
TCC(TCC1, 1));
TCC(0, 5),
TCC(1, 1));
#endif
#ifdef PIN_PB12
PIN(PB12, EXTINT_CHANNEL(12), NO_ADC, NO_ADC,
@ -419,16 +421,16 @@ PIN(PB12, EXTINT_CHANNEL(12), NO_ADC, NO_ADC,
SERCOM(4, 0),
NO_SERCOM,
#ifdef TC4
TC(TC4, 0),
TC(4, 0),
#else
NO_TIMER,
#endif
#ifdef TCC3
TCC(TCC3, 0),
TCC(3, 0),
#else
NO_TIMER,
#endif
TCC(TCC0, 0));
TCC(0, 0));
#endif
#ifdef PIN_PB13
PIN(PB13, EXTINT_CHANNEL(13), NO_ADC, NO_ADC,
@ -440,16 +442,16 @@ PIN(PB13, EXTINT_CHANNEL(13), NO_ADC, NO_ADC,
SERCOM(4, 1),
NO_SERCOM,
#ifdef TC4
TC(TC4, 1),
TC(4, 1),
#else
NO_TIMER,
#endif
#ifdef TCC3
TCC(TCC3, 1),
TCC(3, 1),
#else
NO_TIMER,
#endif
TCC(TCC0, 1));
TCC(0, 1));
#endif
#ifdef PIN_PB14
PIN(PB14, EXTINT_CHANNEL(14), NO_ADC, NO_ADC,
@ -461,16 +463,16 @@ PIN(PB14, EXTINT_CHANNEL(14), NO_ADC, NO_ADC,
SERCOM(4, 2),
NO_SERCOM,
#ifdef TC5
TC(TC5, 0),
TC(5, 0),
#else
NO_TIMER,
#endif
#ifdef TCC4
TCC(TCC4, 0),
TCC(4, 0),
#else
NO_TIMER,
#endif
TCC(TCC0, 2));
TCC(0, 2));
#endif
#ifdef PIN_PB15
PIN(PB15, EXTINT_CHANNEL(15), NO_ADC, NO_ADC,
@ -482,16 +484,16 @@ PIN(PB15, EXTINT_CHANNEL(15), NO_ADC, NO_ADC,
SERCOM(4, 3),
NO_SERCOM,
#ifdef TC5
TC(TC5, 1),
TC(5, 1),
#else
NO_TIMER,
#endif
#ifdef TCC4
TCC(TCC4, 1),
TCC(4, 1),
#else
NO_TIMER,
#endif
TCC(TCC0, 3));
TCC(0, 3));
#endif
#ifdef PIN_PD08
PIN(PD08, EXTINT_CHANNEL(3), NO_ADC, NO_ADC,
@ -507,7 +509,7 @@ PIN(PD08, EXTINT_CHANNEL(3), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 1),
TCC(0, 1),
NO_TIMER);
#endif
#ifdef PIN_PD09
@ -524,7 +526,7 @@ PIN(PD09, EXTINT_CHANNEL(4), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 2),
TCC(0, 2),
NO_TIMER);
#endif
#ifdef PIN_PD10
@ -541,7 +543,7 @@ PIN(PD10, EXTINT_CHANNEL(5), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 3),
TCC(0, 3),
NO_TIMER);
#endif
#ifdef PIN_PD11
@ -558,7 +560,7 @@ PIN(PD11, EXTINT_CHANNEL(6), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 4),
TCC(0, 4),
NO_TIMER);
#endif
#ifdef PIN_PD12
@ -567,7 +569,7 @@ PIN(PD12, EXTINT_CHANNEL(7), NO_ADC, NO_ADC,
NO_SERCOM,
NO_SERCOM,
NO_TIMER,
TCC(TCC0, 5),
TCC(0, 5),
NO_TIMER);
#endif
#ifdef PIN_PC10
@ -584,8 +586,8 @@ PIN(PC10, EXTINT_CHANNEL(10), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 0),
TCC(TCC1, 4));
TCC(0, 0),
TCC(1, 4));
#endif
#ifdef PIN_PC11
PIN(PC11, EXTINT_CHANNEL(11), NO_ADC, NO_ADC,
@ -601,8 +603,8 @@ PIN(PC11, EXTINT_CHANNEL(11), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 1),
TCC(TCC1, 5));
TCC(0, 1),
TCC(1, 5));
#endif
#ifdef PIN_PC12
PIN(PC12, EXTINT_CHANNEL(12), NO_ADC, NO_ADC,
@ -618,8 +620,8 @@ PIN(PC12, EXTINT_CHANNEL(12), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 2),
TCC(TCC1, 6));
TCC(0, 2),
TCC(1, 6));
#endif
#ifdef PIN_PC13
PIN(PC13, EXTINT_CHANNEL(13), NO_ADC, NO_ADC,
@ -635,8 +637,8 @@ PIN(PC13, EXTINT_CHANNEL(13), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 3),
TCC(TCC1, 7));
TCC(0, 3),
TCC(1, 7));
#endif
#ifdef PIN_PC14
PIN(PC14, EXTINT_CHANNEL(14), NO_ADC, NO_ADC,
@ -652,8 +654,8 @@ PIN(PC14, EXTINT_CHANNEL(14), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 4),
TCC(TCC1, 0));
TCC(0, 4),
TCC(1, 0));
#endif
#ifdef PIN_PC15
PIN(PC15, EXTINT_CHANNEL(15), NO_ADC, NO_ADC,
@ -669,24 +671,24 @@ PIN(PC15, EXTINT_CHANNEL(15), NO_ADC, NO_ADC,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC0, 5),
TCC(TCC1, 1));
TCC(0, 5),
TCC(1, 1));
#endif
#ifdef PIN_PA12
PIN(PA12, EXTINT_CHANNEL(12), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(2, 0),
SERCOM(4, 1),
TC(TC2, 0),
TCC(TCC0, 6),
TCC(TCC1, 2));
TC(2, 0),
TCC(0, 6),
TCC(1, 2));
#endif
#ifdef PIN_PA13
PIN(PA13, EXTINT_CHANNEL(13), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(2, 1),
SERCOM(4, 0),
TC(TC2, 1),
TCC(TCC0, 7),
TCC(TCC1, 3));
TC(2, 1),
TCC(0, 7),
TCC(1, 3));
#endif
// Third page
@ -694,49 +696,49 @@ PIN(PA13, EXTINT_CHANNEL(13), NO_ADC, NO_ADC, NO_TOUCH,
PIN(PA14, EXTINT_CHANNEL(14), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(2, 2),
SERCOM(4, 2),
TC(TC3, 0),
TCC(TCC2, 0),
TCC(TCC1, 2));
TC(3, 0),
TCC(2, 0),
TCC(1, 2));
#endif
#ifdef PIN_PA15
PIN(PA15, EXTINT_CHANNEL(15), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(2, 3),
SERCOM(4, 3),
TC(TC3, 1),
TCC(TCC2, 1),
TCC(TCC1, 3));
TC(3, 1),
TCC(2, 1),
TCC(1, 3));
#endif
#ifdef PIN_PA16
PIN(PA16, EXTINT_CHANNEL(0), NO_ADC, NO_ADC, TOUCH(10),
SERCOM(1, 0),
SERCOM(3, 1),
TC(TC2, 0),
TCC(TCC1, 0),
TCC(TCC0, 4));
TC(2, 0),
TCC(1, 0),
TCC(0, 4));
#endif
#ifdef PIN_PA17
PIN(PA17, EXTINT_CHANNEL(1), NO_ADC, NO_ADC, TOUCH(11),
SERCOM(1, 1),
SERCOM(3, 0),
TC(TC2, 1),
TCC(TCC1, 1),
TCC(TCC0, 5));
TC(2, 1),
TCC(1, 1),
TCC(0, 5));
#endif
#ifdef PIN_PA18
PIN(PA18, EXTINT_CHANNEL(2), NO_ADC, NO_ADC, TOUCH(12),
SERCOM(1, 2),
SERCOM(3, 2),
TC(TC3, 0),
TCC(TCC1, 2),
TCC(TCC0, 6));
TC(3, 0),
TCC(1, 2),
TCC(0, 6));
#endif
#ifdef PIN_PA19
PIN(PA19, EXTINT_CHANNEL(3), NO_ADC, NO_ADC, TOUCH(13),
SERCOM(1, 3),
SERCOM(3, 3),
TC(TC3, 1),
TCC(TCC1, 3),
TCC(TCC0, 7));
TC(3, 1),
TCC(1, 3),
TCC(0, 7));
#endif
#ifdef PIN_PC16
PIN(PC16, EXTINT_CHANNEL(0), NO_ADC, NO_ADC,
@ -761,7 +763,7 @@ PIN(PC17, EXTINT_CHANNEL(1), NO_ADC, NO_ADC,
#endif
SERCOM(0, 0),
NO_TIMER,
TCC(TCC0, 1),
TCC(0, 1),
NO_TIMER);
#endif
#ifdef PIN_PC18
@ -774,7 +776,7 @@ PIN(PC18, EXTINT_CHANNEL(2), NO_ADC, NO_ADC,
#endif
SERCOM(0, 2),
NO_TIMER,
TCC(TCC0, 2),
TCC(0, 2),
NO_TIMER);
#endif
#ifdef PIN_PC19
@ -787,7 +789,7 @@ PIN(PC19, EXTINT_CHANNEL(3), NO_ADC, NO_ADC,
#endif
SERCOM(0, 3),
NO_TIMER,
TCC(TCC0, 3),
TCC(0, 3),
NO_TIMER);
#endif
#ifdef PIN_PC20
@ -796,7 +798,7 @@ PIN(PC20, EXTINT_CHANNEL(4), NO_ADC, NO_ADC,
NO_SERCOM,
NO_SERCOM,
NO_TIMER,
TCC(TCC0, 4),
TCC(0, 4),
NO_TIMER);
#endif
#ifdef PIN_PC21
@ -805,7 +807,7 @@ PIN(PC21, EXTINT_CHANNEL(5), NO_ADC, NO_ADC,
NO_SERCOM,
NO_SERCOM,
NO_TIMER,
TCC(TCC0, 5),
TCC(0, 5),
NO_TIMER);
#endif
#ifdef PIN_PC22
@ -814,7 +816,7 @@ PIN(PC22, EXTINT_CHANNEL(6), NO_ADC, NO_ADC,
SERCOM(1, 0),
SERCOM(3, 1),
NO_TIMER,
TCC(TCC0, 6),
TCC(0, 6),
NO_TIMER);
#endif
#ifdef PIN_PC23
@ -823,7 +825,7 @@ PIN(PC23, EXTINT_CHANNEL(7), NO_ADC, NO_ADC,
SERCOM(1, 1),
SERCOM(3, 0),
NO_TIMER,
TCC(TCC0, 7),
TCC(0, 7),
NO_TIMER);
#endif
#ifdef PIN_PD20
@ -832,7 +834,7 @@ PIN(PD20, EXTINT_CHANNEL(10), NO_ADC, NO_ADC,
SERCOM(1, 2),
SERCOM(3, 2),
NO_TIMER,
TCC(TCC1, 0),
TCC(1, 0),
NO_TIMER);
#endif
#ifdef PIN_PD21
@ -841,7 +843,7 @@ PIN(PD21, EXTINT_CHANNEL(11), NO_ADC, NO_ADC,
SERCOM(1, 3),
SERCOM(3, 3),
NO_TIMER,
TCC(TCC1, 1),
TCC(1, 1),
NO_TIMER);
#endif
@ -853,24 +855,24 @@ PIN(PB16, EXTINT_CHANNEL(0), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(5, 0),
NO_SERCOM,
#ifdef TC6
TC(TC6, 0),
TC(6, 0),
#else
NO_TIMER,
#endif
TCC(TCC3, 0),
TCC(TCC0, 4));
TCC(3, 0),
TCC(0, 4));
#endif
#ifdef PIN_PB17
PIN(PB17, EXTINT_CHANNEL(1), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(5, 1),
NO_SERCOM,
#ifdef TC6
TC(TC6, 1),
TC(6, 1),
#else
NO_TIMER,
#endif
TCC(TCC3, 1),
TCC(TCC0, 5));
TCC(3, 1),
TCC(0, 5));
#endif
#ifdef PIN_PB18
PIN(PB18, EXTINT_CHANNEL(2), NO_ADC, NO_ADC, NO_TOUCH,
@ -881,7 +883,7 @@ PIN(PB18, EXTINT_CHANNEL(2), NO_ADC, NO_ADC, NO_TOUCH,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC1, 0),
TCC(1, 0),
NO_TIMER);
#endif
#ifdef PIN_PB19
@ -893,7 +895,7 @@ PIN(PB19, EXTINT_CHANNEL(3), NO_ADC, NO_ADC, NO_TOUCH,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC1, 1),
TCC(1, 1),
NO_TIMER);
#endif
#ifdef PIN_PB20
@ -905,7 +907,7 @@ PIN(PB20, EXTINT_CHANNEL(4), NO_ADC, NO_ADC, NO_TOUCH,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC1, 2),
TCC(1, 2),
NO_TIMER);
#endif
#ifdef PIN_PB21
@ -917,7 +919,7 @@ PIN(PB21, EXTINT_CHANNEL(5), NO_ADC, NO_ADC, NO_TOUCH,
NO_SERCOM,
#endif
NO_TIMER,
TCC(TCC1, 3),
TCC(1, 3),
NO_TIMER);
#endif
#ifdef PIN_PA20
@ -925,59 +927,59 @@ PIN(PA20, EXTINT_CHANNEL(4), NO_ADC, NO_ADC, TOUCH(14),
SERCOM(5, 2),
SERCOM(3, 2),
#ifdef TC7
TC(TC7, 0),
TC(7, 0),
#else
NO_TIMER,
#endif
TCC(TCC1, 4),
TCC(TCC0, 0));
TCC(1, 4),
TCC(0, 0));
#endif
#ifdef PIN_PA21
PIN(PA21, EXTINT_CHANNEL(5), NO_ADC, NO_ADC, TOUCH(15),
SERCOM(5, 3),
SERCOM(3, 3),
#ifdef TC7
TC(TC7, 1),
TC(7, 1),
#else
NO_TIMER,
#endif
TCC(TCC1, 5),
TCC(TCC0, 1));
TCC(1, 5),
TCC(0, 1));
#endif
#ifdef PIN_PA22
PIN(PA22, EXTINT_CHANNEL(6), NO_ADC, NO_ADC, TOUCH(16),
SERCOM(3, 0),
SERCOM(5, 1),
#ifdef TC4
TC(TC4, 0),
TC(4, 0),
#else
NO_TIMER,
#endif
TCC(TCC1, 6),
TCC(TCC0, 2));
TCC(1, 6),
TCC(0, 2));
#endif
#ifdef PIN_PA23
PIN(PA23, EXTINT_CHANNEL(7), NO_ADC, NO_ADC, TOUCH(17),
SERCOM(3, 1),
SERCOM(5, 0),
#ifdef TC4
TC(TC4, 1),
TC(4, 1),
#else
NO_TIMER,
#endif
TCC(TCC1, 7),
TCC(TCC0, 3));
TCC(1, 7),
TCC(0, 3));
#endif
#ifdef PIN_PA24
PIN(PA24, EXTINT_CHANNEL(8), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(3, 2),
SERCOM(5, 2),
#ifdef TC5
TC(TC5, 0),
TC(5, 0),
#else
NO_TIMER,
#endif
TCC(TCC2, 2),
TCC(2, 2),
NO_TIMER);
#endif
#ifdef PIN_PA25
@ -985,7 +987,7 @@ PIN(PA25, EXTINT_CHANNEL(9), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(3, 3),
SERCOM(5, 3),
#ifdef TC5
TC(TC5, 1),
TC(5, 1),
#else
NO_TIMER,
#endif
@ -999,7 +1001,7 @@ PIN(PB22, EXTINT_CHANNEL(6), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(1, 2),
SERCOM(5, 2),
#ifdef TC7
TC(TC7, 0),
TC(7, 0),
#else
NO_TIMER,
#endif
@ -1011,7 +1013,7 @@ PIN(PB23, EXTINT_CHANNEL(7), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(1, 3),
SERCOM(5, 3),
#ifdef TC7
TC(TC7, 1),
TC(7, 1),
#else
NO_TIMER,
#endif
@ -1047,7 +1049,7 @@ PIN(PB27, EXTINT_CHANNEL(13), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(2, 1),
SERCOM(4, 0),
NO_TIMER,
TCC(TCC1, 3),
TCC(1, 3),
NO_TIMER);
#endif
#ifdef PIN_PB28
@ -1055,7 +1057,7 @@ PIN(PB28, EXTINT_CHANNEL(14), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(2, 2),
SERCOM(4, 2),
NO_TIMER,
TCC(TCC1, 4),
TCC(1, 4),
NO_TIMER);
#endif
#ifdef PIN_PB29
@ -1063,7 +1065,7 @@ PIN(PB29, EXTINT_CHANNEL(15), NO_ADC, NO_ADC, NO_TOUCH,
SERCOM(2, 3),
SERCOM(4, 3),
NO_TIMER,
TCC(TCC1, 5),
TCC(1, 5),
NO_TIMER);
#endif
#ifdef PIN_PC24
@ -1123,11 +1125,11 @@ PIN(PA30, EXTINT_CHANNEL(14), NO_ADC, NO_ADC, TOUCH(19),
#endif
SERCOM(1, 2),
#ifdef TC6
TC(TC6, 0),
TC(6, 0),
#else
NO_TIMER,
#endif
TCC(TCC2, 0),
TCC(2, 0),
NO_TIMER);
#endif
#ifdef PIN_PA31
@ -1139,11 +1141,11 @@ PIN(PA31, EXTINT_CHANNEL(15), NO_ADC, NO_ADC, NO_TOUCH,
#endif
SERCOM(1, 23),
#ifdef TC6
TC(TC6, 1),
TC(6, 1),
#else
NO_TIMER,
#endif
TCC(TCC2, 1),
TCC(2, 1),
NO_TIMER);
#endif
#ifdef PIN_PB30
@ -1154,9 +1156,9 @@ PIN(PB30, EXTINT_CHANNEL(14), NO_ADC, NO_ADC, NO_TOUCH,
NO_SERCOM,
#endif
SERCOM(5, 1),
TC(TC0, 0),
TCC(TCC4, 0),
TCC(TCC0, 6));
TC(0, 0),
TCC(4, 0),
TCC(0, 6));
#endif
#ifdef PIN_PB31
PIN(PB31, EXTINT_CHANNEL(15), NO_ADC, NO_ADC, NO_TOUCH,
@ -1166,9 +1168,9 @@ PIN(PB31, EXTINT_CHANNEL(15), NO_ADC, NO_ADC, NO_TOUCH,
NO_SERCOM,
#endif
SERCOM(5, 0),
TC(TC0, 1),
TCC(TCC4, 1),
TCC(TCC0, 7));
TC(0, 1),
TCC(4, 1),
TCC(0, 7));
#endif
#ifdef PIN_PC30
PIN(PC30, EXTINT_CHANNEL(14), NO_ADC, ADC_INPUT(12), NO_TOUCH,
@ -1198,7 +1200,7 @@ PIN(PB00, EXTINT_CHANNEL(0), ADC_INPUT(12), NO_ADC,
NO_SERCOM,
SERCOM(5, 2),
#ifdef TC7
TC(TC7, 0),
TC(7, 0),
#else
NO_TIMER,
#endif
@ -1215,7 +1217,7 @@ PIN(PB01, EXTINT_CHANNEL(1), ADC_INPUT(13), NO_ADC,
NO_SERCOM,
SERCOM(5, 3),
#ifdef TC7
TC(TC7, 1),
TC(7, 1),
#else
NO_TIMER,
#endif
@ -1227,10 +1229,10 @@ PIN(PB02, EXTINT_CHANNEL(2), ADC_INPUT(14), NO_ADC, TOUCH(20),
NO_SERCOM,
SERCOM(5, 0),
#ifdef TC6
TC(TC6, 0),
TC(6, 0),
#else
NO_TIMER,
#endif
TCC(TCC2, 2),
TCC(2, 2),
NO_TIMER);
#endif

9
ports/atmel-samd/supervisor/port.c
View File

@ -46,6 +46,9 @@
#include "common-hal/analogio/AnalogIn.h"
#include "common-hal/analogio/AnalogOut.h"
#include "common-hal/microcontroller/Pin.h"
#include "common-hal/pulseio/PulseIn.h"
#include "common-hal/pulseio/PulseOut.h"
#include "common-hal/pulseio/PWMOut.h"
#include "tick.h"
extern volatile bool mp_msc_enabled;
@ -204,10 +207,10 @@ void reset_port(void) {
// audioout_reset();
// touchin_reset();
// pdmin_reset();
// pulsein_reset();
// pulseout_reset();
// pwmout_reset();
// #endif
pulsein_reset();
pulseout_reset();
pwmout_reset();
analogin_reset();

285
ports/atmel-samd/timers.c Normal file
View File

@ -0,0 +1,285 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdbool.h>
#include <stdint.h>
#include "timers.h"
#include "common-hal/pulseio/PulseOut.h"
#ifdef SAMD21
#include "hpl/gclk/hpl_gclk_base.h"
#endif
#ifdef SAMD51
#include "hri/hri_gclk_d51.h"
#endif
// This bitmask keeps track of which channels of a TCC are currently claimed.
#ifdef SAMD21
const uint8_t tcc_cc_num[3] = {4, 2, 2};
const uint8_t tc_gclk_ids[TC_INST_NUM] = {TC3_GCLK_ID,
TC4_GCLK_ID,
TC5_GCLK_ID,
#ifdef TC6_GCLK_ID
TC6_GCLK_ID,
#endif
#ifdef TC7_GCLK_ID
TC7_GCLK_ID,
#endif
};
const uint8_t tcc_gclk_ids[3] = {TCC0_GCLK_ID, TCC1_GCLK_ID, TCC2_GCLK_ID};
#endif
#ifdef SAMD51
const uint8_t tcc_cc_num[5] = {6, 4, 3, 2, 2};
const uint8_t tc_gclk_ids[TC_INST_NUM] = {TC0_GCLK_ID,
TC1_GCLK_ID,
TC2_GCLK_ID,
TC3_GCLK_ID,
#ifdef TC4_GCLK_ID
TC4_GCLK_ID,
#endif
#ifdef TC5_GCLK_ID
TC5_GCLK_ID,
#endif
#ifdef TC6_GCLK_ID
TC6_GCLK_ID,
#endif
#ifdef TC7_GCLK_ID
TC7_GCLK_ID,
#endif
};
const uint8_t tcc_gclk_ids[5] = {TCC0_GCLK_ID, TCC1_GCLK_ID, TCC2_GCLK_ID, TCC3_GCLK_ID,
TCC4_GCLK_ID};
#endif
Tc* const tc_insts[TC_INST_NUM] = TC_INSTS;
Tcc* const tcc_insts[TCC_INST_NUM] = TCC_INSTS;
IRQn_Type const tc_irq[TC_INST_NUM] = {
#ifdef TC0
TC0_IRQn,
#endif
#ifdef TC1
TC1_IRQn,
#endif
#ifdef TC2
TC2_IRQn,
#endif
TC3_IRQn,
TC4_IRQn,
TC5_IRQn,
#ifdef TC6
TC6_IRQn,
#endif
#ifdef TC7
TC7_IRQn,
#endif
};
void turn_on_clocks(bool is_tc, uint8_t index, uint32_t gclk_index) {
uint8_t gclk_id;
if (is_tc) {
gclk_id = tc_gclk_ids[index];
} else {
gclk_id = tcc_gclk_ids[index];
}
// Turn on the clocks for the peripherals.
#ifdef SAMD51
if (is_tc) {
switch (index) {
case 0:
MCLK->APBAMASK.reg |= MCLK_APBAMASK_TC0;
break;
case 1:
MCLK->APBAMASK.reg |= MCLK_APBAMASK_TC1;
break;
case 2:
MCLK->APBBMASK.reg |= MCLK_APBBMASK_TC2;
break;
case 3:
MCLK->APBBMASK.reg |= MCLK_APBBMASK_TC3;
break;
case 4:
MCLK->APBCMASK.reg |= MCLK_APBCMASK_TC4;
break;
case 5:
MCLK->APBCMASK.reg |= MCLK_APBCMASK_TC5;
break;
case 6:
MCLK->APBDMASK.reg |= MCLK_APBDMASK_TC6;
break;
case 7:
MCLK->APBDMASK.reg |= MCLK_APBDMASK_TC7;
break;
default:
break;
}
} else {
switch (index) {
case 0:
MCLK->APBBMASK.reg |= MCLK_APBBMASK_TCC0;
break;
case 1:
MCLK->APBBMASK.reg |= MCLK_APBBMASK_TCC1;
break;
case 2:
MCLK->APBCMASK.reg |= MCLK_APBCMASK_TCC2;
break;
case 3:
MCLK->APBCMASK.reg |= MCLK_APBCMASK_TCC3;
break;
case 4:
MCLK->APBDMASK.reg |= MCLK_APBDMASK_TCC4;
break;
default:
break;
}
}
// FIXME(tannewt): TC4-TC7 can only have 100mhz inputs.
hri_gclk_write_PCHCTRL_reg(GCLK, gclk_id,
gclk_index | (1 << GCLK_PCHCTRL_CHEN_Pos));
#endif
#ifdef SAMD21
// Determine the clock slot on the APBC bus. TCC0 is the first and 8 slots in.
uint8_t clock_slot = 8 + index;
// We index TCs starting at zero but in memory they begin at three so we have to add three.
if (is_tc) {
clock_slot += 3;
}
PM->APBCMASK.reg |= 1 << clock_slot;
_gclk_enable_channel(gclk_id, gclk_index);
#endif
}
void tc_set_enable(Tc* tc, bool enable) {
tc->COUNT16.CTRLA.bit.ENABLE = enable;
#ifdef SAMD21
while (tc->COUNT16.STATUS.bit.SYNCBUSY != 0) {
/* Wait for sync */
}
#endif
#ifdef SAMD51
while (tc->COUNT16.SYNCBUSY.bit.ENABLE != 0) {
/* Wait for sync */
}
#endif
}
void tc_enable_interrupts(uint8_t tc_index) {
NVIC_DisableIRQ(tc_irq[tc_index]);
NVIC_ClearPendingIRQ(tc_irq[tc_index]);
NVIC_EnableIRQ(tc_irq[tc_index]);
}
void tc_disable_interrupts(uint8_t tc_index) {
NVIC_DisableIRQ(tc_irq[tc_index]);
NVIC_ClearPendingIRQ(tc_irq[tc_index]);
}
void tcc_set_enable(Tcc* tcc, bool enable) {
tcc->CTRLA.bit.ENABLE = enable;
while (tcc->SYNCBUSY.bit.ENABLE != 0) {
/* Wait for sync */
}
}
void tc_wait_for_sync(Tc* tc) {
#ifdef SAMD21
while (tc->COUNT16.STATUS.bit.SYNCBUSY != 0) {}
#endif
#ifdef SAMD51
while (tc->COUNT16.SYNCBUSY.reg != 0) {}
#endif
}
void tc_reset(Tc* tc) {
tc->COUNT16.CTRLA.bit.SWRST = 1;
while (tc->COUNT16.CTRLA.bit.SWRST == 1) {
}
}
void shared_timer_handler(bool is_tc, uint8_t index) {
// Add calls to interrupt handlers for specific functionality here.
if (is_tc) {
pulseout_interrupt_handler(index);
}
}
#ifdef SAMD51
#define TC_OFFSET 0
#endif
#ifdef SAMD21
#define TC_OFFSET 3
#endif
void TCC0_Handler(void) {
shared_timer_handler(false, 0);
}
void TCC1_Handler(void) {
shared_timer_handler(false, 1);
}
void TCC2_Handler(void) {
shared_timer_handler(false, 2);
}
// TC0 - TC2 only exist on the SAMD51
#ifdef TC0
void TC0_Handler(void) {
shared_timer_handler(true, 0);
}
#endif
#ifdef TC1
void TC1_Handler(void) {
shared_timer_handler(true, 1);
}
#endif
#ifdef TC2
void TC2_Handler(void) {
shared_timer_handler(true, 2);
}
#endif
void TC3_Handler(void) {
shared_timer_handler(true, 3 - TC_OFFSET);
}
void TC4_Handler(void) {
shared_timer_handler(true, 4 - TC_OFFSET);
}
void TC5_Handler(void) {
shared_timer_handler(true, 5 - TC_OFFSET);
}
#ifdef TC6
void TC6_Handler(void) {
shared_timer_handler(true, 6 - TC_OFFSET);
}
#endif
#ifdef TC7
void TC7_Handler(void) {
shared_timer_handler(true, 7 - TC_OFFSET);
}
#endif

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ports/atmel-samd/timers.h Normal file
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@ -0,0 +1,67 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_ATMEL_SAMD_TIMERS_H
#define MICROPY_INCLUDED_ATMEL_SAMD_TIMERS_H
#include "include/sam.h"
#ifdef SAMD21
const uint8_t tcc_cc_num[3];
const uint8_t tc_gclk_ids[TC_INST_NUM];
const uint8_t tcc_gclk_ids[3];
#endif
#ifdef SAMD51
const uint8_t tcc_cc_num[5];
const uint8_t tc_gclk_ids[TC_INST_NUM];
const uint8_t tcc_gclk_ids[5];
#endif
Tc* const tc_insts[TC_INST_NUM];
Tcc* const tcc_insts[TCC_INST_NUM];
void turn_on_clocks(bool is_tc, uint8_t index, uint32_t gclk_index);
void tc_set_enable(Tc* tc, bool enable);
void tcc_set_enable(Tcc* tcc, bool enable);
void tc_wait_for_sync(Tc* tc);
void tc_reset(Tc* tc);
void tc_enable_interrupts(uint8_t tc_index);
void tc_disable_interrupts(uint8_t tc_index);
// Handlers
void TCC0_Handler(void);
void TCC1_Handler(void);
void TCC2_Handler(void);
void TC3_Handler(void);
void TC4_Handler(void);
void TC5_Handler(void);
#ifdef TC6
void TC6_Handler(void);
#endif
#ifdef TC7
void TC7_Handler(void);
#endif
#endif // MICROPY_INCLUDED_ATMEL_SAMD_TIMERS_H