Add display init code for Lilygo TTGO T8 ESP32-S2
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m4tk
parent
adaf43d6d8
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ff7b296b04
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@ -27,6 +27,109 @@
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#include "supervisor/board.h"
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#include "mpconfigboard.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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#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, 150,
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// sleep out
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0x11, 0 | DELAY, 255,
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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, 0x08,
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0xB6, 2, 0x0A, 0x82,
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0x3A, 1 | DELAY, 0x55, 10,
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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, 255,
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};
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static void display_init(void) {
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busio_spi_obj_t* spi = &displays[0].fourwire_bus.inline_bus;
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common_hal_busio_spi_construct(
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spi,
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&pin_GPIO36, // CLK
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&pin_GPIO35, // MOSI
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&pin_GPIO4 // MISO
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);
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common_hal_busio_spi_never_reset(spi);
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displayio_fourwire_obj_t* bus = &displays[0].fourwire_bus;
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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_GPIO37, // DC
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&pin_GPIO34, // CS
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&pin_GPIO38, // 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 = &displays[0].display;
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display->base.type = &displayio_display_type;
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// workaround as board_init() is called before reset_port() in main.c
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pwmout_reset();
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common_hal_displayio_display_construct(
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display,
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bus,
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240, // width (after rotation)
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135, // height (after rotation)
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52, // column start
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40, // row start
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90, // 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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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_GPIO33, // backlight pin
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NO_BRIGHTNESS_COMMAND,
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1.0f, // brightness (ignored)
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false, // auto_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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);
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common_hal_never_reset_pin(&pin_GPIO33); // backlight pin
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}
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void board_init(void) {
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// USB
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@ -38,6 +141,9 @@ void board_init(void) {
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common_hal_never_reset_pin(&pin_GPIO43);
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common_hal_never_reset_pin(&pin_GPIO44);
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#endif /* DEBUG */
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// Display
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display_init();
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}
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bool board_requests_safe_mode(void) {
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@ -1,11 +1,11 @@
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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_global_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_IO0), MP_ROM_PTR(&pin_GPIO0) },
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{ MP_ROM_QSTR(MP_QSTR_IO1), MP_ROM_PTR(&pin_GPIO1) },
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{ MP_ROM_QSTR(MP_QSTR_IO2), MP_ROM_PTR(&pin_GPIO2) },
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{ MP_ROM_QSTR(MP_QSTR_IO3), MP_ROM_PTR(&pin_GPIO3) },
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{ MP_ROM_QSTR(MP_QSTR_IO4), MP_ROM_PTR(&pin_GPIO4) },
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{ MP_ROM_QSTR(MP_QSTR_IO5), MP_ROM_PTR(&pin_GPIO5) },
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{ MP_ROM_QSTR(MP_QSTR_IO6), MP_ROM_PTR(&pin_GPIO6) },
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{ MP_ROM_QSTR(MP_QSTR_IO7), MP_ROM_PTR(&pin_GPIO7) },
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@ -48,6 +48,7 @@ STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_LCD_RST), MP_ROM_PTR(&pin_GPIO38) },
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{ MP_ROM_QSTR(MP_QSTR_LCD_BCKL), MP_ROM_PTR(&pin_GPIO33) },
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{ MP_ROM_QSTR(MP_QSTR_LCD_D_C), MP_ROM_PTR(&pin_GPIO37) },
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{ MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].display) },
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// Peripheral Power control
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{ MP_ROM_QSTR(MP_QSTR_PE_POWER), MP_ROM_PTR(&pin_GPIO14) },
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