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‎ports/espressif/boards/spotpear_esp32c3_lcd_1_44/board.c

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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2023 CDarius
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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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/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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// display init sequence according to adafruit_st7735r.py library
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uint8_t display_init_sequence[] = {
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0x01, 0x80, 0x96, // SWRESET and Delay 150ms
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0x11, 0x80, 0xff, // SLPOUT and Delay
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0xb1, 0x03, 0x01, 0x2C, 0x2D, // _FRMCTR1
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0xb2, 0x03, 0x01, 0x2C, 0x2D, // _FRMCTR2
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0xb3, 0x06, 0x01, 0x2C, 0x2D, 0x01, 0x2C, 0x2D, // _FRMCTR3
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0xb4, 0x01, 0x07, // _INVCTR line inversion
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0xc0, 0x03, 0xa2, 0x02, 0x84, // _PWCTR1 GVDD = 4.7V, 1.0uA
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0xc1, 0x01, 0xc5, // _PWCTR2 VGH=14.7V, VGL=-7.35V
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0xc2, 0x02, 0x0a, 0x00, // _PWCTR3 Opamp current small, Boost frequency
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0xc3, 0x02, 0x8a, 0x2a,
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0xc4, 0x02, 0x8a, 0xee,
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0xc5, 0x01, 0x0e, // _VMCTR1 VCOMH = 4V, VOML = -1.1V
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0x36, 0x01, 0xc8, // MADCTL Rotate display
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0x3a, 0x01, 0x05, // COLMOD - 16bit color
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0xe0, 0x10, 0x02, 0x1c, 0x07, 0x12, 0x37, 0x32, 0x29, 0x2d, 0x29, 0x25, 0x2B, 0x39, 0x00, 0x01, 0x03, 0x10, // _GMCTRP1 Gamma
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0xe1, 0x10, 0x03, 0x1d, 0x07, 0x06, 0x2E, 0x2C, 0x29, 0x2D, 0x2E, 0x2E, 0x37, 0x3F, 0x00, 0x00, 0x02, 0x10, // _GMCTRN1
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0x13, 0x80, 0x0a, // _NORON
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0x29, 0x80, 0x64 // _DISPON
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};
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static bool display_init(void) {
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fourwire_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
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busio_spi_obj_t *spi = &bus->inline_bus;
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common_hal_busio_spi_construct(spi, &pin_GPIO3, &pin_GPIO4, NULL, false);
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common_hal_busio_spi_never_reset(spi);
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bus->base.type = &fourwire_fourwire_type;
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common_hal_fourwire_fourwire_construct(
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bus,
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spi,
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&pin_GPIO0, // DC
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&pin_GPIO2, // CS
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&pin_GPIO5, // RST
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10000000, // baudrate
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0, // polarity
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0 // phase
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);
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busdisplay_busdisplay_obj_t *display = &allocate_display()->display;
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display->base.type = &busdisplay_busdisplay_type;
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common_hal_busdisplay_busdisplay_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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NULL, // 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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80, // native_frames_per_second
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false, // 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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return true;
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}
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void board_init(void) {
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display_init();
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}

‎ports/espressif/boards/spotpear_esp32c3_lcd_1_44/mpconfigboard.h

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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2023 Neradoc
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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// Board setup
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#define MICROPY_HW_BOARD_NAME "Spotpear ESP32C3 LCD 1.44"
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#define MICROPY_HW_MCU_NAME "ESP32-C3FH4"
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#define MICROPY_HW_LED_STATUS (&pin_GPIO11)
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#define CIRCUITPY_BOOT_BUTTON (&pin_GPIO9)

‎ports/espressif/boards/spotpear_esp32c3_lcd_1_44/mpconfigboard.mk

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CIRCUITPY_CREATOR_ID = 0x18760000
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CIRCUITPY_CREATION_ID = 0x00DD0001
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IDF_TARGET = esp32c3
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CIRCUITPY_ESP_FLASH_MODE = qio
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CIRCUITPY_ESP_FLASH_FREQ = 80m
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CIRCUITPY_ESP_FLASH_SIZE = 4MB
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CIRCUITPY_ESP_USB_SERIAL_JTAG = 1

‎ports/espressif/boards/spotpear_esp32c3_lcd_1_44/pins.c

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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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CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
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// buttons
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{ MP_ROM_QSTR(MP_QSTR_BOOT), MP_ROM_PTR(&pin_GPIO9) },
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{ MP_ROM_QSTR(MP_QSTR_BUTTON0), MP_ROM_PTR(&pin_GPIO9) },
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{ MP_ROM_QSTR(MP_QSTR_BUTTON1), MP_ROM_PTR(&pin_GPIO8) },
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{ MP_ROM_QSTR(MP_QSTR_BUTTON2), MP_ROM_PTR(&pin_GPIO10) },
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// Status LED
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{ MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO11) },
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// SPI LCD
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{ MP_ROM_QSTR(MP_QSTR_LCD_MOSI), MP_ROM_PTR(&pin_GPIO4) },
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{ MP_ROM_QSTR(MP_QSTR_LCD_SCK), MP_ROM_PTR(&pin_GPIO3) },
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{ MP_ROM_QSTR(MP_QSTR_LCD_DC), MP_ROM_PTR(&pin_GPIO0) },
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{ MP_ROM_QSTR(MP_QSTR_LCD_RST), MP_ROM_PTR(&pin_GPIO5) },
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{ MP_ROM_QSTR(MP_QSTR_LCD_CS), MP_ROM_PTR(&pin_GPIO2) },
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// UART (on header 1)
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{ MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO20) },
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{ MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO21) },
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// User available GPIO, Header 1
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{ MP_ROM_QSTR(MP_QSTR_IO1), MP_ROM_PTR(&pin_GPIO1) },
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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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{ MP_ROM_QSTR(MP_QSTR_IO20), MP_ROM_PTR(&pin_GPIO20) },
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{ MP_ROM_QSTR(MP_QSTR_IO21), MP_ROM_PTR(&pin_GPIO21) },
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// Objects
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{ MP_ROM_QSTR(MP_QSTR_LCD_SPI), MP_ROM_PTR(&board_spi_obj) },
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{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_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);

‎ports/espressif/boards/spotpear_esp32c3_lcd_1_44/sdkconfig

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#
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# Espressif IoT Development Framework Configuration
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#
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#
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# Component config
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#
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#
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# LWIP
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#
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CONFIG_LWIP_LOCAL_HOSTNAME="spotpear-esp32c3-lcd-1-44"
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# end of LWIP
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# end of Component config
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# end of Espressif IoT Development Framework Configuration

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