djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #2730 from tannewt/fix_fourwire_phase_polarity

Browse Source 
Add polarity and phase to FourWire.
This commit is contained in:
Jeff Epler 2020-03-28 07:28:37 -05:00 committed by GitHub
commit 54e8c63b4f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
16 changed files with 63 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
ports/atmel-samd/boards/hallowing_m0_express/board.c
View File

@ -79,7 +79,9 @@ void board_init(void) {
&pin_PA28, // Command or data
&pin_PA01, // Chip select
&pin_PA27, // Reset
12000000);
12000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

4
ports/atmel-samd/boards/hallowing_m4_express/board.c
View File

@ -59,7 +59,9 @@ void board_init(void) {
&pin_PB31, // TFT_DC Command or data
&pin_PA27, // TFT_CS Chip select
&pin_PB30, // TFT_RST Reset
60000000);
60000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

4
ports/atmel-samd/boards/monster_m4sk/board.c
View File

@ -60,7 +60,9 @@ void board_init(void) {
&pin_PA07, // TFT_DC Command or data
&pin_PA06, // TFT_CS Chip select
&pin_PA04, // TFT_RST Reset
60000000);
60000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

4
ports/atmel-samd/boards/openbook_m4/board.c
View File

@ -65,7 +65,9 @@ void board_init(void) {
&pin_PB05, // EPD_DC Command or data
&pin_PB07, // EPD_CS Chip select
&pin_PA00, // EPD_RST Reset
1000000);
1000000, // Baudrate
0, // Polarity
0); // Phase
displayio_epaperdisplay_obj_t* display = &displays[0].epaper_display;
display->base.type = &displayio_epaperdisplay_type;

4
ports/atmel-samd/boards/pewpew_m4/board.c
View File

@ -107,7 +107,9 @@ void board_init(void) {
&pin_PA16, // TFT_DC Command or data
&pin_PA11, // TFT_CS Chip select
&pin_PA17, // TFT_RST Reset
60000000);
60000000, // Baudrate
0, // Polarity
0); // Phase
uint32_t cfg0 = lookupCfg(CFG_DISPLAY_CFG0, 0x000000);
uint32_t offX = (cfg0 >> 8) & 0xff;

4
ports/atmel-samd/boards/pybadge/board.c
View File

@ -82,7 +82,9 @@ void board_init(void) {
&pin_PB05, // TFT_DC Command or data
&pin_PB07, // TFT_CS Chip select
&pin_PA00, // TFT_RST Reset
60000000);
60000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

4
ports/atmel-samd/boards/pybadge_airlift/board.c
View File

@ -60,7 +60,9 @@ void board_init(void) {
&pin_PB05, // TFT_DC Command or data
&pin_PB06, // TFT_CS Chip select
&pin_PB07, // TFT_RST Reset
60000000);
60000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

4
ports/atmel-samd/boards/pygamer/board.c
View File

@ -82,7 +82,9 @@ void board_init(void) {
&pin_PB05, // TFT_DC Command or data
&pin_PB12, // TFT_CS Chip select
&pin_PA00, // TFT_RST Reset
60000000);
60000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

4
ports/atmel-samd/boards/pygamer_advance/board.c
View File

@ -60,7 +60,9 @@ void board_init(void) {
&pin_PA00, // TFT_DC Command or data
&pin_PB15, // TFT_CS Chip select
&pin_PB05, // TFT_RST Reset
60000000);
60000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

4
ports/atmel-samd/boards/ugame10/board.c
View File

@ -79,7 +79,9 @@ void board_init(void) {
&pin_PA09, // Command or data
&pin_PA08, // Chip select
NULL, // Reset
24000000);
24000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

4
ports/nrf/boards/clue_nrf52840_express/board.c
View File

@ -59,7 +59,9 @@ void board_init(void) {
&pin_P0_13, // TFT_DC Command or data
&pin_P0_12, // TFT_CS Chip select
&pin_P1_03, // TFT_RST Reset
60000000);
60000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

4
ports/nrf/boards/ohs2020_badge/board.c
View File

@ -59,7 +59,9 @@ void board_init(void) {
&pin_P0_08, // TFT_DC Command or data
&pin_P0_14, // TFT_CS Chip select
&pin_P0_13, // TFT_RST Reset
60000000);
60000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

6
ports/stm/boards/meowbit_v121/board.c
View File

@ -61,7 +61,7 @@ uint8_t display_init_sequence[] = {
0x3a, 1, 0x05, // COLMOD - 16bit color
0xe0, 0x10, 0x02, 0x1c, 0x07, 0x12,
0x37, 0x32, 0x29, 0x2d,
0x29, 0x25, 0x2B, 0x39,
0x29, 0x25, 0x2B, 0x39,
0x00, 0x01, 0x03, 0x10, // _GMCTRP1 Gamma
0xe1, 0x10, 0x03, 0x1d, 0x07, 0x06,
0x2E, 0x2C, 0x29, 0x2D,
@ -80,7 +80,9 @@ void board_init(void) {
&pin_PA08, // Command or data
&pin_PB12, // Chip select
&pin_PB10, // Reset
24000000);
24000000, // Baudrate
0, // Polarity
0); // Phase
displayio_display_obj_t* display = &displays[0].display;
display->base.type = &displayio_display_type;

20
shared-bindings/displayio/FourWire.c
View File

@ -46,7 +46,7 @@
//| Manage updating a display over SPI four wire protocol in the background while Python code runs.
//| It doesn't handle display initialization.
//|
//| .. class:: FourWire(spi_bus, *, command, chip_select, reset=None, baudrate=24000000)
//| .. class:: FourWire(spi_bus, *, command, chip_select, reset=None, baudrate=24000000, polarity=0, phase=0)
//|
//| Create a FourWire object associated with the given pins.
//|
@ -60,15 +60,20 @@
//| :param microcontroller.Pin chip_select: Chip select pin
//| :param microcontroller.Pin reset: Reset pin. When None only software reset can be used
//| :param int baudrate: Maximum baudrate in Hz for the display on the bus
//| :param int polarity: the base state of the clock line (0 or 1)
//| :param int phase: the edge of the clock that data is captured. First (0)
//| or second (1). Rising or falling depends on clock polarity.
//|
STATIC mp_obj_t displayio_fourwire_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_spi_bus, ARG_command, ARG_chip_select, ARG_reset, ARG_baudrate };
enum { ARG_spi_bus, ARG_command, ARG_chip_select, ARG_reset, ARG_baudrate, ARG_polarity, ARG_phase };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_spi_bus, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_command, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
{ MP_QSTR_chip_select, MP_ARG_OBJ | MP_ARG_KW_ONLY | MP_ARG_REQUIRED },
{ MP_QSTR_reset, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} },
{ MP_QSTR_baudrate, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 24000000} },
{ MP_QSTR_polarity, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_phase, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
@ -91,8 +96,17 @@ STATIC mp_obj_t displayio_fourwire_make_new(const mp_obj_type_t *type, size_t n_
mp_raise_RuntimeError(translate("Too many display busses"));
}
uint8_t polarity = args[ARG_polarity].u_int;
if (polarity != 0 && polarity != 1) {
mp_raise_ValueError(translate("Invalid polarity"));
}
uint8_t phase = args[ARG_phase].u_int;
if (phase != 0 && phase != 1) {
mp_raise_ValueError(translate("Invalid phase"));
}
common_hal_displayio_fourwire_construct(self,
MP_OBJ_TO_PTR(spi), command, chip_select, reset, args[ARG_baudrate].u_int);
MP_OBJ_TO_PTR(spi), command, chip_select, reset, args[ARG_baudrate].u_int, polarity, phase);
return self;
}

3
shared-bindings/displayio/FourWire.h
View File

@ -38,7 +38,8 @@ extern const mp_obj_type_t displayio_fourwire_type;
void common_hal_displayio_fourwire_construct(displayio_fourwire_obj_t* self,
busio_spi_obj_t* spi, const mcu_pin_obj_t* command,
const mcu_pin_obj_t* chip_select, const mcu_pin_obj_t* reset, uint32_t baudrate);
const mcu_pin_obj_t* chip_select, const mcu_pin_obj_t* reset, uint32_t baudrate,
uint8_t polarity, uint8_t phase);
void common_hal_displayio_fourwire_deinit(displayio_fourwire_obj_t* self);

7
shared-module/displayio/FourWire.c
View File

@ -40,7 +40,8 @@
void common_hal_displayio_fourwire_construct(displayio_fourwire_obj_t* self,
busio_spi_obj_t* spi, const mcu_pin_obj_t* command,
const mcu_pin_obj_t* chip_select, const mcu_pin_obj_t* reset, uint32_t baudrate) {
const mcu_pin_obj_t* chip_select, const mcu_pin_obj_t* reset, uint32_t baudrate,
uint8_t polarity, uint8_t phase) {
self->bus = spi;
common_hal_busio_spi_never_reset(self->bus);
@ -49,8 +50,8 @@ void common_hal_displayio_fourwire_construct(displayio_fourwire_obj_t* self,
gc_never_free(self->bus);
self->frequency = baudrate;
self->polarity = 0;
self->phase = 0;
self->polarity = polarity;
self->phase = phase;
common_hal_digitalio_digitalinout_construct(&self->command, command);
common_hal_digitalio_digitalinout_switch_to_output(&self->command, true, DRIVE_MODE_PUSH_PULL);