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Implement requested changes

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This commit is contained in:
Lucian Copeland 2020-01-28 17:11:25 -05:00
parent b5b94b72c1
commit 3c86005546
5 changed files with 22 additions and 22 deletions
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2
ports/stm32f4/boards/meowbit_v121/pins.c
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@ -60,6 +60,6 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_P0), MP_ROM_PTR(&pin_PA00) },
{ MP_ROM_QSTR(MP_QSTR_P3), MP_ROM_PTR(&pin_PB00) },
{ MP_ROM_QSTR(MP_QSTR_INTERNAL_SPI), MP_ROM_PTR(&spi) },
{ MP_ROM_QSTR(MP_QSTR_INTERNAL_SPI), MP_ROM_PTR(&supervisor_flash_spi_bus) },
};
MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);

6
ports/stm32f4/common-hal/pulseio/PWMOut.c
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@ -68,9 +68,9 @@ STATIC uint32_t timer_get_source_freq(uint32_t tim_id) {
}
STATIC uint32_t timer_get_internal_duty(uint16_t duty, uint32_t period) {
//duty cycle is (0xFFFF - duty)/0xFFFF fraction x (number of pulses per period)
//duty cycle is duty/0xFFFF fraction x (number of pulses per period)
//Note that pulses are inverted, so duty cycle is inverted
return ((0xFFFF - duty)*period) / ((1 << 16) - 1);
return (duty*period) / ((1 << 16) - 1);
}
STATIC void timer_get_optimal_divisors(uint32_t*period, uint32_t*prescaler,
@ -203,7 +203,7 @@ pwmout_result_t common_hal_pulseio_pwmout_construct(pulseio_pwmout_obj_t* self,
//Channel/PWM init
self->chan_handle.OCMode = TIM_OCMODE_PWM1;
self->chan_handle.Pulse = timer_get_internal_duty(duty, period);
self->chan_handle.OCPolarity = TIM_OCPOLARITY_LOW;
self->chan_handle.OCPolarity = TIM_OCPOLARITY_HIGH;
self->chan_handle.OCFastMode = TIM_OCFAST_DISABLE;
self->chan_handle.OCNPolarity = TIM_OCNPOLARITY_LOW; // needed for TIM1 and TIM8
self->chan_handle.OCIdleState = TIM_OCIDLESTATE_SET; // needed for TIM1 and TIM8

2
shared-module/displayio/__init__.c
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@ -104,7 +104,7 @@ void reset_displays(void) {
}
#endif
#ifdef BOARD_USE_INTERNAL_SPI
if (original_spi == (mp_obj_t)(&spi)) {
if (original_spi == (mp_obj_t)(&supervisor_flash_spi_bus)) {
continue;
}
#endif

32
supervisor/shared/external_flash/spi_flash.c
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@ -36,33 +36,33 @@
#include "py/mpconfig.h"
digitalio_digitalinout_obj_t cs_pin;
busio_spi_obj_t spi;
busio_spi_obj_t supervisor_flash_spi_bus;
const external_flash_device* flash_device;
uint32_t spi_flash_baudrate;
// Enable the flash over SPI.
static void flash_enable(void) {
while (!common_hal_busio_spi_try_lock(&spi)) {}
while (!common_hal_busio_spi_try_lock(&supervisor_flash_spi_bus)) {}
common_hal_digitalio_digitalinout_set_value(&cs_pin, false);
}
// Disable the flash over SPI.
static void flash_disable(void) {
common_hal_digitalio_digitalinout_set_value(&cs_pin, true);
common_hal_busio_spi_unlock(&spi);
common_hal_busio_spi_unlock(&supervisor_flash_spi_bus);
}
static bool transfer(uint8_t* command, uint32_t command_length, uint8_t* data_in, uint8_t* data_out, uint32_t data_length) {
flash_enable();
bool status = common_hal_busio_spi_write(&spi, command, command_length);
bool status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, command, command_length);
if (status) {
if (data_in != NULL && data_out != NULL) {
status = common_hal_busio_spi_transfer(&spi, data_out, data_in, data_length);
status = common_hal_busio_spi_transfer(&supervisor_flash_spi_bus, data_out, data_in, data_length);
} else if (data_out != NULL) {
status = common_hal_busio_spi_read(&spi, data_out, data_length, 0xff);
status = common_hal_busio_spi_read(&supervisor_flash_spi_bus, data_out, data_length, 0xff);
} else if (data_in != NULL) {
status = common_hal_busio_spi_write(&spi, data_in, data_length);
status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, data_in, data_length);
}
}
flash_disable();
@ -103,10 +103,10 @@ bool spi_flash_write_data(uint32_t address, uint8_t* data, uint32_t data_length)
// Write the SPI flash write address into the bytes following the command byte.
address_to_bytes(address, request + 1);
flash_enable();
common_hal_busio_spi_configure(&spi, spi_flash_baudrate, 0, 0, 8);
bool status = common_hal_busio_spi_write(&spi, request, 4);
common_hal_busio_spi_configure(&supervisor_flash_spi_bus, spi_flash_baudrate, 0, 0, 8);
bool status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, request, 4);
if (status) {
status = common_hal_busio_spi_write(&spi, data, data_length);
status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, data, data_length);
}
flash_disable();
return status;
@ -122,10 +122,10 @@ bool spi_flash_read_data(uint32_t address, uint8_t* data, uint32_t data_length)
// Write the SPI flash write address into the bytes following the command byte.
address_to_bytes(address, request + 1);
flash_enable();
common_hal_busio_spi_configure(&spi, spi_flash_baudrate, 0, 0, 8);
bool status = common_hal_busio_spi_write(&spi, request, command_length);
common_hal_busio_spi_configure(&supervisor_flash_spi_bus, spi_flash_baudrate, 0, 0, 8);
bool status = common_hal_busio_spi_write(&supervisor_flash_spi_bus, request, command_length);
if (status) {
status = common_hal_busio_spi_read(&spi, data, data_length, 0xff);
status = common_hal_busio_spi_read(&supervisor_flash_spi_bus, data, data_length, 0xff);
}
flash_disable();
return status;
@ -140,9 +140,9 @@ void spi_flash_init(void) {
common_hal_digitalio_digitalinout_switch_to_output(&cs_pin, true, DRIVE_MODE_PUSH_PULL);
common_hal_digitalio_digitalinout_never_reset(&cs_pin);
spi.base.type = &busio_spi_type;
common_hal_busio_spi_construct(&spi, SPI_FLASH_SCK_PIN, SPI_FLASH_MOSI_PIN, SPI_FLASH_MISO_PIN);
common_hal_busio_spi_never_reset(&spi);
supervisor_flash_spi_bus.base.type = &busio_spi_type;
common_hal_busio_spi_construct(&supervisor_flash_spi_bus, SPI_FLASH_SCK_PIN, SPI_FLASH_MOSI_PIN, SPI_FLASH_MISO_PIN);
common_hal_busio_spi_never_reset(&supervisor_flash_spi_bus);
}
void spi_flash_init_device(const external_flash_device* device) {

2
supervisor/spi_flash_api.h
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@ -33,7 +33,7 @@
#include "shared-bindings/busio/SPI.h"
extern busio_spi_obj_t spi; //Used to share SPI bus on some boards
extern busio_spi_obj_t supervisor_flash_spi_bus; //Used to share SPI bus on some boards
// This API is implemented for both normal SPI peripherals and QSPI peripherals.