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tkomdetkomde
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display is functional now
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‎ports/espressif/boards/m5stack_atoms3/board.c

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@@ -25,5 +25,106 @@
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*/
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#include "supervisor/board.h"
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#include "mpconfigboard.h"
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#include "shared-bindings/busio/SPI.h"
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#include "shared-bindings/displayio/FourWire.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-module/displayio/__init__.h"
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#include "shared-module/displayio/mipi_constants.h"
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#include "shared-bindings/board/__init__.h"
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displayio_fourwire_obj_t board_display_obj;
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#define DELAY 0x80
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// display init sequence according to LilyGO example app
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uint8_t display_init_sequence[] = {
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// sw reset
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0x01, 0 | DELAY, 0x96,
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// sleep out
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0x11, 0 | DELAY, 0xff,
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// normal display mode on
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// 0x13, 0,
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// display and color format settings
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// 0x36, 1, 0x68,
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// 0xB6, 2, 0x0A, 0x82,
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0x3A, 1 | DELAY, 0x55, 0x0a,
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0x36, 0x01, 0x08, // _MADCTL
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0x21, 0x80, 0x0A, // _INVON Hack and Delay 10ms
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0x13, 0x80, 0x0A, // _NORON and Delay 10ms
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0x36, 0x01, 0xC0, // _MADCTL
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// ST7789V frame rate setting
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// 0xB2, 5, 0x0C, 0x0C, 0x00, 0x33, 0x33,
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// voltages: VGH / VGL
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// 0xB7, 1, 0x35,
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// ST7789V power setting
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// 0xBB, 1, 0x28,
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// 0xC0, 1, 0x0C,
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// 0xC2, 2, 0x01, 0xFF,
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// 0xC3, 1, 0x10,
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// 0xC4, 1, 0x20,
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// 0xC6, 1, 0x0F,
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// 0xD0, 2, 0xA4, 0xA1,
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// ST7789V gamma setting
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// 0xE0, 14, 0xD0, 0x00, 0x02, 0x07, 0x0A, 0x28, 0x32, 0x44, 0x42, 0x06, 0x0E, 0x12, 0x14, 0x17,
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// 0xE1, 14, 0xD0, 0x00, 0x02, 0x07, 0x0A, 0x28, 0x31, 0x54, 0x47, 0x0E, 0x1C, 0x17, 0x1B, 0x1E,
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// 0x21, 0,
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// display on
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0x29, 0 | DELAY, 0xff
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};
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void board_init(void) {
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displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
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// busio_spi_obj_t *spi = common_hal_board_create_spi(0);
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busio_spi_obj_t *spi = &bus->inline_bus;
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common_hal_busio_spi_construct(spi, &pin_GPIO17, &pin_GPIO21, NULL, false);
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common_hal_busio_spi_never_reset(spi);
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bus->base.type = &displayio_fourwire_type;
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common_hal_displayio_fourwire_construct(
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bus,
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spi,
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&pin_GPIO33, // DC
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&pin_GPIO15, // CS
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&pin_GPIO34, // RST
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40000000, // baudrate
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0, // polarity
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0 // phase
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);
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displayio_display_obj_t *display = &allocate_display()->display;
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display->base.type = &displayio_display_type;
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common_hal_displayio_display_construct(
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display,
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bus,
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128, // width (after rotation)
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128, // height (after rotation)
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2, // column start
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1, // row start
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0, // rotation
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16, // color depth
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false, // grayscale
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false, // pixels in a byte share a row. Only valid for depths < 8
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1, // bytes per cell. Only valid for depths < 8
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false, // reverse_pixels_in_byte. Only valid for depths < 8
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true, // reverse_pixels_in_word
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MIPI_COMMAND_SET_COLUMN_ADDRESS, // set column command
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MIPI_COMMAND_SET_PAGE_ADDRESS, // set row command
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MIPI_COMMAND_WRITE_MEMORY_START, // write memory command
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display_init_sequence,
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sizeof(display_init_sequence),
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&pin_GPIO16, // backlight pin
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NO_BRIGHTNESS_COMMAND,
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1.0f, // brightness
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false, // single_byte_bounds
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false, // data_as_commands
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true, // auto_refresh
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60, // native_frames_per_second
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true, // backlight_on_high
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false, // SH1107_addressing
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50000 // backlight pwm frequency
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);
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}
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// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.

‎ports/espressif/boards/m5stack_atoms3/mpconfigboard.h

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Original file line numberDiff line numberDiff line change
@@ -34,3 +34,6 @@
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#define CIRCUITPY_BOARD_I2C (2)
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#define CIRCUITPY_BOARD_I2C_PIN {{.scl = &pin_GPIO39, .sda = &pin_GPIO38}, \
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{.scl = &pin_GPIO1, .sda = &pin_GPIO2}}
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#define DEFAULT_SPI_BUS_SCK (&pin_GPIO17)
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#define DEFAULT_SPI_BUS_MOSI (&pin_GPIO21)

‎ports/espressif/boards/m5stack_atoms3/pins.c

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Original file line numberDiff line numberDiff line change
@@ -27,7 +27,9 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_GPIO8) },
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{ MP_ROM_QSTR(MP_QSTR_D39), MP_ROM_PTR(&pin_GPIO39) },
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{ MP_ROM_QSTR(MP_QSTR_IMU_SCL), MP_ROM_PTR(&pin_GPIO39) },
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{ MP_ROM_QSTR(MP_QSTR_D38), MP_ROM_PTR(&pin_GPIO38) },
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{ MP_ROM_QSTR(MP_QSTR_IMU_SDA), MP_ROM_PTR(&pin_GPIO38) },
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// lcd spi bus
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{ MP_ROM_QSTR(MP_QSTR_LCD_MOSI), MP_ROM_PTR(&pin_GPIO21) },
@@ -43,6 +45,7 @@ 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_PORTA_I2C), MP_ROM_PTR(&board_porta_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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