/* * This file is part of the MicroPython project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2019 Scott Shawcroft for Adafruit Industries * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "supervisor/board.h" #include "mpconfigboard.h" #include "hal/include/hal_gpio.h" #include "shared-bindings/busio/SPI.h" #include "shared-bindings/displayio/FourWire.h" #include "shared-module/displayio/__init__.h" #include "shared-module/displayio/mipi_constants.h" displayio_fourwire_obj_t board_display_obj; #define DELAY 0x80 uint8_t display_init_sequence[] = { 0x01, 0 | DELAY, 150, // SWRESET 0x11, 0 | DELAY, 255, // SLPOUT 0x36, 1, 0x00, // _MADCTL bottom to top refresh in vsync aligned order. 0x3a, 1, 0x55, // COLMOD - 16bit color 0x38, 0, // Idle mode off 0x21, 0, // _INVON 0x13, 0, // _NORON 0x29, 0 | DELAY, 255 // _DISPON }; void board_init(void) { busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus; common_hal_busio_spi_construct(spi, &pin_PA13, &pin_PA12, NULL, false); common_hal_busio_spi_never_reset(spi); displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus; bus->base.type = &displayio_fourwire_type; common_hal_displayio_fourwire_construct(bus, spi, &pin_PA07, // TFT_DC Command or data &pin_PA06, // TFT_CS Chip select &pin_PA04, // TFT_RST Reset 60000000, // Baudrate 0, // Polarity 0); // Phase displayio_display_obj_t *display = &displays[0].display; display->base.type = &displayio_display_type; common_hal_displayio_display_construct(display, bus, 240, // Width (after rotation) 240, // Height (after rotation) 0, // column start 0, // row start 180, // rotation 16, // Color depth false, // Grayscale false, // pixels in a byte share a row. Only valid for depths < 8 1, // bytes per cell. Only valid for depths < 8 false, // reverse_pixels_in_byte. Only valid for depths < 8 true, // reverse_pixels_in_word MIPI_COMMAND_SET_COLUMN_ADDRESS, // Set column command MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command MIPI_COMMAND_WRITE_MEMORY_START, // Write memory command display_init_sequence, sizeof(display_init_sequence), &pin_PA23, // backlight pin NO_BRIGHTNESS_COMMAND, 1.0f, // brightness false, // single_byte_bounds false, // data_as_commands true, // auto_refresh 60, // native_frames_per_second true, // backlight_on_high false, // SH1107_addressing 50000); // backlight pwm frequency } bool board_requests_safe_mode(void) { return false; } void reset_board(void) { } void board_deinit(void) { }