From fadb5a102426182f1412adbbe9d57268882f8b5f Mon Sep 17 00:00:00 2001 From: Melissa LeBlanc-Williams Date: Sat, 23 Mar 2019 18:34:42 -0700 Subject: Added option to toggle cs in displayio init sequence --- shared-module/displayio/Display.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'shared-module/displayio/Display.h') diff --git a/shared-module/displayio/Display.h b/shared-module/displayio/Display.h index 04da68b63..250f44031 100644 --- a/shared-module/displayio/Display.h +++ b/shared-module/displayio/Display.h @@ -34,6 +34,7 @@ typedef bool (*display_bus_begin_transaction)(mp_obj_t bus); typedef void (*display_bus_send)(mp_obj_t bus, bool command, uint8_t *data, uint32_t data_length); typedef void (*display_bus_end_transaction)(mp_obj_t bus); +typedef void (*display_bus_set_cs)(mp_obj_t bus, bool high); typedef struct { mp_obj_base_t base; @@ -49,9 +50,11 @@ typedef struct { uint64_t last_refresh; int16_t colstart; int16_t rowstart; + bool init_cs_toggle; display_bus_begin_transaction begin_transaction; display_bus_send send; display_bus_end_transaction end_transaction; + display_bus_set_cs set_cs; union { digitalio_digitalinout_obj_t backlight_inout; pulseio_pwmout_obj_t backlight_pwm; -- cgit v1.2.3 From c3329e224ddf352131568a5dd914943bc5194d4d Mon Sep 17 00:00:00 2001 From: Melissa LeBlanc-Williams Date: Sun, 24 Mar 2019 23:59:28 -0700 Subject: Added Single Byte Boundaries option for certain displays --- .../atmel-samd/boards/hallowing_m0_express/board.c | 3 ++- ports/atmel-samd/boards/pybadge/board.c | 3 ++- ports/atmel-samd/boards/pyportal/board.c | 4 +++- shared-bindings/displayio/Display.c | 11 +++++---- shared-bindings/displayio/Display.h | 3 ++- shared-module/displayio/Display.c | 26 +++++++++++++++------- shared-module/displayio/Display.h | 1 + 7 files changed, 35 insertions(+), 16 deletions(-) (limited to 'shared-module/displayio/Display.h') diff --git a/ports/atmel-samd/boards/hallowing_m0_express/board.c b/ports/atmel-samd/boards/hallowing_m0_express/board.c index 4f073e270..aa4f96d15 100644 --- a/ports/atmel-samd/boards/hallowing_m0_express/board.c +++ b/ports/atmel-samd/boards/hallowing_m0_express/board.c @@ -94,7 +94,8 @@ void board_init(void) { display_init_sequence, sizeof(display_init_sequence), &pin_PA00, - true); + true, // init_cs_toggle + false); // single_byte_bounds common_hal_displayio_display_set_auto_brightness(display, true); } diff --git a/ports/atmel-samd/boards/pybadge/board.c b/ports/atmel-samd/boards/pybadge/board.c index ce8c42a43..0c55e41e2 100644 --- a/ports/atmel-samd/boards/pybadge/board.c +++ b/ports/atmel-samd/boards/pybadge/board.c @@ -100,7 +100,8 @@ void board_init(void) { display_init_sequence, sizeof(display_init_sequence), &pin_PA00, - true); + true, // init_cs_toggle + false); // single_byte_bounds common_hal_displayio_display_set_auto_brightness(display, true); } diff --git a/ports/atmel-samd/boards/pyportal/board.c b/ports/atmel-samd/boards/pyportal/board.c index 3a306b0b4..14a4dadbe 100644 --- a/ports/atmel-samd/boards/pyportal/board.c +++ b/ports/atmel-samd/boards/pyportal/board.c @@ -91,7 +91,9 @@ void board_init(void) { display_init_sequence, sizeof(display_init_sequence), &pin_PB31, - true); + true, // init_cs_toggle + false); // single_byte_bounds + common_hal_displayio_display_set_auto_brightness(display, true); } diff --git a/shared-bindings/displayio/Display.c b/shared-bindings/displayio/Display.c index 8fed5129f..af2c27149 100644 --- a/shared-bindings/displayio/Display.c +++ b/shared-bindings/displayio/Display.c @@ -50,7 +50,7 @@ //| Most people should not use this class directly. Use a specific display driver instead that will //| contain the initialization sequence at minimum. //| -//| .. class:: Display(display_bus, init_sequence, *, width, height, colstart=0, rowstart=0, rotation=0, color_depth=16, set_column_command=0x2a, set_row_command=0x2b, write_ram_command=0x2c, set_vertical_scroll=0, backlight_pin=None, init_cs_toggle=False) +//| .. class:: Display(display_bus, init_sequence, *, width, height, colstart=0, rowstart=0, rotation=0, color_depth=16, set_column_command=0x2a, set_row_command=0x2b, write_ram_command=0x2c, set_vertical_scroll=0, backlight_pin=None, init_cs_toggle=True, single_byte_bounds=False) //| //| Create a Display object on the given display bus (`displayio.FourWire` or `displayio.ParallelBus`). //| @@ -91,10 +91,11 @@ //| :param int write_ram_command: Command used to write pixels values into the update region //| :param int set_vertical_scroll: Command used to set the first row to show //| :param microcontroller.Pin backlight_pin: Pin connected to the display's backlight -//| :param bool init_cs_toggle: Toggle the Chip Select between each initialization command. +//| :param bool init_cs_toggle: Toggle the Chip Select between each initialization command +//| :param bool single_byte_bounds: Display column and row commands use single bytes //| STATIC mp_obj_t displayio_display_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_display_bus, ARG_init_sequence, ARG_width, ARG_height, ARG_colstart, ARG_rowstart, ARG_rotation, ARG_color_depth, ARG_set_column_command, ARG_set_row_command, ARG_write_ram_command, ARG_set_vertical_scroll, ARG_backlight_pin, ARG_init_cs_toggle }; + enum { ARG_display_bus, ARG_init_sequence, ARG_width, ARG_height, ARG_colstart, ARG_rowstart, ARG_rotation, ARG_color_depth, ARG_set_column_command, ARG_set_row_command, ARG_write_ram_command, ARG_set_vertical_scroll, ARG_backlight_pin, ARG_init_cs_toggle, ARG_single_byte_bounds }; static const mp_arg_t allowed_args[] = { { MP_QSTR_display_bus, MP_ARG_REQUIRED | MP_ARG_OBJ }, { MP_QSTR_init_sequence, MP_ARG_REQUIRED | MP_ARG_OBJ }, @@ -110,6 +111,7 @@ STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_a { MP_QSTR_set_vertical_scroll, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x0} }, { MP_QSTR_backlight_pin, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} }, { MP_QSTR_init_cs_toggle, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = true} }, + { MP_QSTR_single_byte_bounds, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} }, }; 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); @@ -149,7 +151,8 @@ STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_a args[ARG_write_ram_command].u_int, args[ARG_set_vertical_scroll].u_int, bufinfo.buf, bufinfo.len, MP_OBJ_TO_PTR(backlight_pin), - args[ARG_init_cs_toggle].u_bool); + args[ARG_init_cs_toggle].u_bool, + args[ARG_single_byte_bounds].u_bool); return self; } diff --git a/shared-bindings/displayio/Display.h b/shared-bindings/displayio/Display.h index 407afe1c3..617686445 100644 --- a/shared-bindings/displayio/Display.h +++ b/shared-bindings/displayio/Display.h @@ -40,7 +40,8 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, mp_obj_t bus, uint16_t width, uint16_t height, int16_t colstart, int16_t rowstart, uint16_t rotation, uint16_t color_depth, uint8_t set_column_command, uint8_t set_row_command, uint8_t write_ram_command, uint8_t set_vertical_scroll, - uint8_t* init_sequence, uint16_t init_sequence_len, const mcu_pin_obj_t* backlight_pin, bool init_cs_toggle); + uint8_t* init_sequence, uint16_t init_sequence_len, const mcu_pin_obj_t* backlight_pin, bool init_cs_toggle, + bool single_byte_bounds); int32_t common_hal_displayio_display_wait_for_frame(displayio_display_obj_t* self); diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c index 8ebe4b543..3936f3b17 100644 --- a/shared-module/displayio/Display.c +++ b/shared-module/displayio/Display.c @@ -44,7 +44,7 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, mp_obj_t bus, uint16_t width, uint16_t height, int16_t colstart, int16_t rowstart, uint16_t rotation, uint16_t color_depth, uint8_t set_column_command, uint8_t set_row_command, uint8_t write_ram_command, uint8_t set_vertical_scroll, uint8_t* init_sequence, uint16_t init_sequence_len, - const mcu_pin_obj_t* backlight_pin, bool init_cs_toggle) { + const mcu_pin_obj_t* backlight_pin, bool init_cs_toggle, bool single_byte_bounds) { self->color_depth = color_depth; self->set_column_command = set_column_command; self->set_row_command = set_row_command; @@ -55,6 +55,7 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, self->rowstart = rowstart; self->auto_brightness = false; self->init_cs_toggle = init_cs_toggle; + self->single_byte_bounds = single_byte_bounds; if (MP_OBJ_IS_TYPE(bus, &displayio_parallelbus_type)) { self->begin_transaction = common_hal_displayio_parallelbus_begin_transaction; @@ -218,16 +219,25 @@ void displayio_display_end_transaction(displayio_display_obj_t* self) { } void displayio_display_set_region_to_update(displayio_display_obj_t* self, uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) { - // TODO(tannewt): Handle displays with single byte bounds. uint16_t data[2]; self->send(self->bus, true, &self->set_column_command, 1); - data[0] = __builtin_bswap16(x0 + self->colstart); - data[1] = __builtin_bswap16(x1 - 1 + self->colstart); - self->send(self->bus, false, (uint8_t*) data, 4); + if (self->single_byte_bounds) { + data[0] = __builtin_bswap16((x0 + self->colstart) << 8 | (x1 - 1 + self->colstart) && 0xFF); + self->send(self->bus, false, (uint8_t*) data, 2); + } else { + data[0] = __builtin_bswap16(x0 + self->colstart); + data[1] = __builtin_bswap16(x1 - 1 + self->colstart); + self->send(self->bus, false, (uint8_t*) data, 4); + } self->send(self->bus, true, &self->set_row_command, 1); - data[0] = __builtin_bswap16(y0 + self->rowstart); - data[1] = __builtin_bswap16(y1 - 1 + self->rowstart); - self->send(self->bus, false, (uint8_t*) data, 4); + if (self->single_byte_bounds) { + data[0] = __builtin_bswap16((y0 + self->rowstart) << 8 | (y1 - 1 + self->rowstart) && 0xFF); + self->send(self->bus, false, (uint8_t*) data, 2); + } else { + data[0] = __builtin_bswap16(y0 + self->rowstart); + data[1] = __builtin_bswap16(y1 - 1 + self->rowstart); + self->send(self->bus, false, (uint8_t*) data, 4); + } self->send(self->bus, true, &self->write_ram_command, 1); } diff --git a/shared-module/displayio/Display.h b/shared-module/displayio/Display.h index 250f44031..18118bc72 100644 --- a/shared-module/displayio/Display.h +++ b/shared-module/displayio/Display.h @@ -51,6 +51,7 @@ typedef struct { int16_t colstart; int16_t rowstart; bool init_cs_toggle; + bool single_byte_bounds; display_bus_begin_transaction begin_transaction; display_bus_send send; display_bus_end_transaction end_transaction; -- cgit v1.2.3 From b2ad16f5c84cd4dc853114e5fc526ab1827580a4 Mon Sep 17 00:00:00 2001 From: Melissa LeBlanc-Williams Date: Tue, 26 Mar 2019 18:34:07 -0700 Subject: Removed parameter so CS is always toggled --- ports/atmel-samd/boards/hallowing_m0_express/board.c | 3 +-- ports/atmel-samd/boards/pybadge/board.c | 3 +-- ports/atmel-samd/boards/pyportal/board.c | 3 +-- shared-bindings/displayio/Display.c | 6 ++---- shared-bindings/displayio/Display.h | 2 +- shared-module/displayio/Display.c | 5 ++--- shared-module/displayio/Display.h | 1 - 7 files changed, 8 insertions(+), 15 deletions(-) (limited to 'shared-module/displayio/Display.h') diff --git a/ports/atmel-samd/boards/hallowing_m0_express/board.c b/ports/atmel-samd/boards/hallowing_m0_express/board.c index 4f073e270..23b119413 100644 --- a/ports/atmel-samd/boards/hallowing_m0_express/board.c +++ b/ports/atmel-samd/boards/hallowing_m0_express/board.c @@ -93,8 +93,7 @@ void board_init(void) { 0x37, // set vertical scroll command display_init_sequence, sizeof(display_init_sequence), - &pin_PA00, - true); + &pin_PA00); common_hal_displayio_display_set_auto_brightness(display, true); } diff --git a/ports/atmel-samd/boards/pybadge/board.c b/ports/atmel-samd/boards/pybadge/board.c index ce8c42a43..0881d8f45 100644 --- a/ports/atmel-samd/boards/pybadge/board.c +++ b/ports/atmel-samd/boards/pybadge/board.c @@ -99,8 +99,7 @@ void board_init(void) { 0x37, // set vertical scroll command display_init_sequence, sizeof(display_init_sequence), - &pin_PA00, - true); + &pin_PA00); common_hal_displayio_display_set_auto_brightness(display, true); } diff --git a/ports/atmel-samd/boards/pyportal/board.c b/ports/atmel-samd/boards/pyportal/board.c index 3a306b0b4..d2c328850 100644 --- a/ports/atmel-samd/boards/pyportal/board.c +++ b/ports/atmel-samd/boards/pyportal/board.c @@ -90,8 +90,7 @@ void board_init(void) { 0x37, // Set vertical scroll command display_init_sequence, sizeof(display_init_sequence), - &pin_PB31, - true); + &pin_PB31); common_hal_displayio_display_set_auto_brightness(display, true); } diff --git a/shared-bindings/displayio/Display.c b/shared-bindings/displayio/Display.c index 9cefb9532..ddca9ffd8 100644 --- a/shared-bindings/displayio/Display.c +++ b/shared-bindings/displayio/Display.c @@ -94,7 +94,7 @@ //| :param bool init_cs_toggle: Toggle the Chip Select between each initialization command //| STATIC mp_obj_t displayio_display_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_display_bus, ARG_init_sequence, ARG_width, ARG_height, ARG_colstart, ARG_rowstart, ARG_rotation, ARG_color_depth, ARG_set_column_command, ARG_set_row_command, ARG_write_ram_command, ARG_set_vertical_scroll, ARG_backlight_pin, ARG_init_cs_toggle }; + enum { ARG_display_bus, ARG_init_sequence, ARG_width, ARG_height, ARG_colstart, ARG_rowstart, ARG_rotation, ARG_color_depth, ARG_set_column_command, ARG_set_row_command, ARG_write_ram_command, ARG_set_vertical_scroll, ARG_backlight_pin }; static const mp_arg_t allowed_args[] = { { MP_QSTR_display_bus, MP_ARG_REQUIRED | MP_ARG_OBJ }, { MP_QSTR_init_sequence, MP_ARG_REQUIRED | MP_ARG_OBJ }, @@ -109,7 +109,6 @@ STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_a { MP_QSTR_write_ram_command, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x2c} }, { MP_QSTR_set_vertical_scroll, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x0} }, { MP_QSTR_backlight_pin, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} }, - { MP_QSTR_init_cs_toggle, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = true} }, }; 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); @@ -148,8 +147,7 @@ STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_a args[ARG_color_depth].u_int, args[ARG_set_column_command].u_int, args[ARG_set_row_command].u_int, args[ARG_write_ram_command].u_int, args[ARG_set_vertical_scroll].u_int, - bufinfo.buf, bufinfo.len, MP_OBJ_TO_PTR(backlight_pin), - args[ARG_init_cs_toggle].u_bool); + bufinfo.buf, bufinfo.len, MP_OBJ_TO_PTR(backlight_pin)); return self; } diff --git a/shared-bindings/displayio/Display.h b/shared-bindings/displayio/Display.h index 407afe1c3..7d6444a2d 100644 --- a/shared-bindings/displayio/Display.h +++ b/shared-bindings/displayio/Display.h @@ -40,7 +40,7 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, mp_obj_t bus, uint16_t width, uint16_t height, int16_t colstart, int16_t rowstart, uint16_t rotation, uint16_t color_depth, uint8_t set_column_command, uint8_t set_row_command, uint8_t write_ram_command, uint8_t set_vertical_scroll, - uint8_t* init_sequence, uint16_t init_sequence_len, const mcu_pin_obj_t* backlight_pin, bool init_cs_toggle); + uint8_t* init_sequence, uint16_t init_sequence_len, const mcu_pin_obj_t* backlight_pin); int32_t common_hal_displayio_display_wait_for_frame(displayio_display_obj_t* self); diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c index bbc23b7b0..c693d3c90 100644 --- a/shared-module/displayio/Display.c +++ b/shared-module/displayio/Display.c @@ -44,7 +44,7 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, mp_obj_t bus, uint16_t width, uint16_t height, int16_t colstart, int16_t rowstart, uint16_t rotation, uint16_t color_depth, uint8_t set_column_command, uint8_t set_row_command, uint8_t write_ram_command, uint8_t set_vertical_scroll, uint8_t* init_sequence, uint16_t init_sequence_len, - const mcu_pin_obj_t* backlight_pin, bool init_cs_toggle) { + const mcu_pin_obj_t* backlight_pin) { self->color_depth = color_depth; self->set_column_command = set_column_command; self->set_row_command = set_row_command; @@ -54,7 +54,6 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, self->colstart = colstart; self->rowstart = rowstart; self->auto_brightness = false; - self->init_cs_toggle = init_cs_toggle; if (MP_OBJ_IS_TYPE(bus, &displayio_parallelbus_type)) { self->begin_transaction = common_hal_displayio_parallelbus_begin_transaction; @@ -83,7 +82,7 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, bool delay = (data_size & DELAY) != 0; data_size &= ~DELAY; uint8_t *data = cmd + 2; - if (self->init_cs_toggle && self->set_cs != NULL) { + if (self->set_cs != NULL) { self->set_cs(self->bus, true); common_hal_time_delay_ms(1); self->set_cs(self->bus, false); diff --git a/shared-module/displayio/Display.h b/shared-module/displayio/Display.h index 250f44031..70308daa2 100644 --- a/shared-module/displayio/Display.h +++ b/shared-module/displayio/Display.h @@ -50,7 +50,6 @@ typedef struct { uint64_t last_refresh; int16_t colstart; int16_t rowstart; - bool init_cs_toggle; display_bus_begin_transaction begin_transaction; display_bus_send send; display_bus_end_transaction end_transaction; -- cgit v1.2.3 From f3ec0514cdfc818c57274cd80025f582ad562f22 Mon Sep 17 00:00:00 2001 From: Melissa LeBlanc-Williams Date: Wed, 27 Mar 2019 20:11:32 -0700 Subject: Simplified into fourwire only --- shared-bindings/displayio/FourWire.h | 2 -- shared-module/displayio/Display.c | 7 ------- shared-module/displayio/Display.h | 2 -- shared-module/displayio/FourWire.c | 11 ++++++----- 4 files changed, 6 insertions(+), 16 deletions(-) (limited to 'shared-module/displayio/Display.h') diff --git a/shared-bindings/displayio/FourWire.h b/shared-bindings/displayio/FourWire.h index a7fda2638..b8b00372c 100644 --- a/shared-bindings/displayio/FourWire.h +++ b/shared-bindings/displayio/FourWire.h @@ -47,6 +47,4 @@ void common_hal_displayio_fourwire_send(mp_obj_t self, bool command, uint8_t *da void common_hal_displayio_fourwire_end_transaction(mp_obj_t self); -void common_hal_displayio_fourwire_set_cs(mp_obj_t self, bool high); - #endif // MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYBUSIO_FOURWIRE_H diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c index c693d3c90..0e76a868f 100644 --- a/shared-module/displayio/Display.c +++ b/shared-module/displayio/Display.c @@ -59,12 +59,10 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, self->begin_transaction = common_hal_displayio_parallelbus_begin_transaction; self->send = common_hal_displayio_parallelbus_send; self->end_transaction = common_hal_displayio_parallelbus_end_transaction; - self->set_cs = NULL; } else if (MP_OBJ_IS_TYPE(bus, &displayio_fourwire_type)) { self->begin_transaction = common_hal_displayio_fourwire_begin_transaction; self->send = common_hal_displayio_fourwire_send; self->end_transaction = common_hal_displayio_fourwire_end_transaction; - self->set_cs = common_hal_displayio_fourwire_set_cs; } else { mp_raise_ValueError(translate("Unsupported display bus type")); } @@ -82,11 +80,6 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, bool delay = (data_size & DELAY) != 0; data_size &= ~DELAY; uint8_t *data = cmd + 2; - if (self->set_cs != NULL) { - self->set_cs(self->bus, true); - common_hal_time_delay_ms(1); - self->set_cs(self->bus, false); - } self->send(self->bus, true, cmd, 1); self->send(self->bus, false, data, data_size); uint16_t delay_length_ms = 10; diff --git a/shared-module/displayio/Display.h b/shared-module/displayio/Display.h index 70308daa2..04da68b63 100644 --- a/shared-module/displayio/Display.h +++ b/shared-module/displayio/Display.h @@ -34,7 +34,6 @@ typedef bool (*display_bus_begin_transaction)(mp_obj_t bus); typedef void (*display_bus_send)(mp_obj_t bus, bool command, uint8_t *data, uint32_t data_length); typedef void (*display_bus_end_transaction)(mp_obj_t bus); -typedef void (*display_bus_set_cs)(mp_obj_t bus, bool high); typedef struct { mp_obj_base_t base; @@ -53,7 +52,6 @@ typedef struct { display_bus_begin_transaction begin_transaction; display_bus_send send; display_bus_end_transaction end_transaction; - display_bus_set_cs set_cs; union { digitalio_digitalinout_obj_t backlight_inout; pulseio_pwmout_obj_t backlight_pwm; diff --git a/shared-module/displayio/FourWire.c b/shared-module/displayio/FourWire.c index ae1fde7ca..043f68e26 100644 --- a/shared-module/displayio/FourWire.c +++ b/shared-module/displayio/FourWire.c @@ -30,6 +30,7 @@ #include "shared-bindings/busio/SPI.h" #include "shared-bindings/digitalio/DigitalInOut.h" +#include "shared-bindings/time/__init__.h" #include "tick.h" @@ -78,6 +79,11 @@ bool common_hal_displayio_fourwire_begin_transaction(mp_obj_t obj) { void common_hal_displayio_fourwire_send(mp_obj_t obj, bool command, uint8_t *data, uint32_t data_length) { displayio_fourwire_obj_t* self = MP_OBJ_TO_PTR(obj); + if (command) { + common_hal_digitalio_digitalinout_set_value(&self->chip_select, true); + common_hal_time_delay_ms(1); + common_hal_digitalio_digitalinout_set_value(&self->chip_select, false); + } common_hal_digitalio_digitalinout_set_value(&self->command, !command); common_hal_busio_spi_write(self->bus, data, data_length); } @@ -87,8 +93,3 @@ void common_hal_displayio_fourwire_end_transaction(mp_obj_t obj) { common_hal_digitalio_digitalinout_set_value(&self->chip_select, true); common_hal_busio_spi_unlock(self->bus); } - -void common_hal_displayio_fourwire_set_cs(mp_obj_t obj, bool high) { - displayio_fourwire_obj_t* self = MP_OBJ_TO_PTR(obj); - common_hal_digitalio_digitalinout_set_value(&self->chip_select, high); -} -- cgit v1.2.3