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Commit 33dcdd7

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Michael Welling
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Updates to enable working SPI TFT
The backlight enable is active low on our board so the driver doesn't like it. Toggling to GPIO manually for now. As fixed the improper SPI bus pins definitions and it works! Signed-off-by: Michael Welling <mwelling@ieee.org>
1 parent d99c2ff commit 33dcdd7

2 files changed

Lines changed: 5 additions & 2 deletions

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‎ports/nrf/boards/ohs2020_badge/board.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -49,7 +49,7 @@ uint8_t display_init_sequence[] = {
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void board_init(void) {
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busio_spi_obj_t* spi = &displays[0].fourwire_bus.inline_bus;
52-
common_hal_busio_spi_construct(spi, &pin_P0_14, &pin_P0_15, mp_const_none);
52+
common_hal_busio_spi_construct(spi, &pin_P0_11, &pin_P0_12, mp_const_none);
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common_hal_busio_spi_never_reset(spi);
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displayio_fourwire_obj_t* bus = &displays[0].fourwire_bus;
@@ -81,7 +81,7 @@ void board_init(void) {
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0x37, // set vertical scroll command
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display_init_sequence,
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sizeof(display_init_sequence),
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&pin_P0_02, // backlight pin
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NULL, // backlight pin
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NO_BRIGHTNESS_COMMAND,
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1.0f, // brightness (ignored)
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true, // auto_brightness

‎ports/nrf/boards/ohs2020_badge/pins.c‎

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
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#include "shared-bindings/board/__init__.h"
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#include "shared-module/displayio/__init__.h"
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STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_MICROPHONE_CLOCK), MP_ROM_PTR(&pin_P0_25) },
@@ -13,6 +14,8 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
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{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
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{ MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].display) },
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};
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MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);

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