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25 | 25 | */
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26 | 26 |
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27 | 27 | #include "supervisor/board.h"
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| 28 | +#include "mpconfigboard.h" |
| 29 | +#include "shared-bindings/microcontroller/Pin.h" |
| 30 | +#include "shared-module/displayio/__init__.h" |
| 31 | +#include "shared-module/displayio/mipi_constants.h" |
| 32 | + |
| 33 | +#define DELAY 0x80 |
| 34 | + |
| 35 | +// display init sequence |
| 36 | +uint8_t display_init_sequence[] = { |
| 37 | + 0x01, DELAY, 0x96, // _SWRESET and Delay 150ms |
| 38 | + 0x11, DELAY, 0xFF, // _SLPOUT and Delay 500ms |
| 39 | + 0x3A, DELAY | 1, 0x55, 0x0A, // _COLMOD (65K of RGB, 16 bits/pixel) and Delay 10ms |
| 40 | + 0x36, 0x01, 0x00, // _MADCTL |
| 41 | + 0x2A, 0x04, 0x00, 0x00, 0x00, 0xF0, // _CASET (0..240) |
| 42 | + 0x2B, 0x04, 0x00, 0x00, 0x00, 0xF0, // _RASET (0..240) |
| 43 | + 0x21, DELAY, 0x0A, // _INVON Hack and Delay 10ms |
| 44 | + 0x13, DELAY, 0x0A, // _NORON and Delay 10ms |
| 45 | + 0x29, DELAY, 0xFF, // _DISPON and Delay 500ms |
| 46 | +}; |
| 47 | + |
| 48 | +static void display_init(void) { |
| 49 | + fourwire_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus; |
| 50 | + busio_spi_obj_t *spi = &bus->inline_bus; |
| 51 | + |
| 52 | + common_hal_busio_spi_construct( |
| 53 | + spi, |
| 54 | + &pin_GPIO14, // CLK |
| 55 | + &pin_GPIO13, // MOSI |
| 56 | + &pin_GPIO12, // MISO |
| 57 | + false); // Not half-duplex |
| 58 | + |
| 59 | + common_hal_busio_spi_never_reset(spi); |
| 60 | + |
| 61 | + bus->base.type = &fourwire_fourwire_type; |
| 62 | + |
| 63 | + common_hal_fourwire_fourwire_construct( |
| 64 | + bus, |
| 65 | + spi, |
| 66 | + &pin_GPIO27, // DC |
| 67 | + &pin_GPIO15, // CS |
| 68 | + &pin_GPIO4, // RST |
| 69 | + 24000000, // baudrate |
| 70 | + 0, // polarity |
| 71 | + 0 // phase |
| 72 | + ); |
| 73 | + |
| 74 | + busdisplay_busdisplay_obj_t *display = &allocate_display()->display; |
| 75 | + display->base.type = &busdisplay_busdisplay_type; |
| 76 | + |
| 77 | + common_hal_busdisplay_busdisplay_construct( |
| 78 | + display, |
| 79 | + bus, |
| 80 | + 240, // width (after rotation) |
| 81 | + 240, // height (after rotation) |
| 82 | + 0, // column start |
| 83 | + 80, // row start |
| 84 | + 0, // rotation |
| 85 | + 16, // color depth |
| 86 | + false, // grayscale |
| 87 | + false, // pixels in a byte share a row. Only valid for depths < 8 |
| 88 | + 1, // bytes per cell. Only valid for depths < 8 |
| 89 | + false, // reverse_pixels_in_byte. Only valid for depths < 8 |
| 90 | + true, // reverse_pixels_in_word |
| 91 | + MIPI_COMMAND_SET_COLUMN_ADDRESS, // set column command |
| 92 | + MIPI_COMMAND_SET_PAGE_ADDRESS, // set row command |
| 93 | + MIPI_COMMAND_WRITE_MEMORY_START, // write memory command |
| 94 | + display_init_sequence, |
| 95 | + sizeof(display_init_sequence), |
| 96 | + &pin_GPIO19, // backlight pin |
| 97 | + NO_BRIGHTNESS_COMMAND, |
| 98 | + 1.0f, // brightness |
| 99 | + false, // single_byte_bounds |
| 100 | + false, // data_as_commands |
| 101 | + true, // auto_refresh |
| 102 | + 60, // native_frames_per_second |
| 103 | + true, // backlight_on_high |
| 104 | + false, // SH1107_addressing |
| 105 | + 50000 // backlight pwm frequency |
| 106 | + ); |
| 107 | +} |
| 108 | + |
| 109 | +void board_init(void) { |
| 110 | + // Display |
| 111 | + display_init(); |
| 112 | +} |
28 | 113 |
|
29 | 114 | // Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.
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