circuitpython/ports/stm/boards/meowbit_v121/board.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 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"
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#include "mpconfigboard.h"
#include "shared-bindings/audiopwmio/PWMAudioOut.h"
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#include "shared-bindings/board/__init__.h"
#include "shared-module/displayio/__init__.h"
#include "shared-module/displayio/mipi_constants.h"
#include "shared-bindings/busio/SPI.h"
#include "supervisor/spi_flash_api.h"
audiopwmio_pwmaudioout_obj_t board_buzz_obj;
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#define DELAY 0x80
uint8_t display_init_sequence[] = {
0x01, 0 | DELAY, 150, // SWRESET
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0x11, 0 | DELAY, 255, // SLPOUT
0xb1, 3, 0x01, 0x2C, 0x2D, // _FRMCTR1
0xb2, 3, 0x01, 0x2C, 0x2D, //
0xb3, 6, 0x01, 0x2C, 0x2D, 0x01, 0x2C, 0x2D,
0xb4, 1, 0x07, // _INVCTR line inversion
0xc0, 3, 0xa2, 0x02, 0x84, // _PWCTR1 GVDD = 4.7V, 1.0uA
0xc1, 1, 0xc5, // _PWCTR2 VGH=14.7V, VGL=-7.35V
0xc2, 2, 0x0a, 0x00, // _PWCTR3 Opamp current small, Boost frequency
0xc3, 2, 0x8a, 0x2a,
0xc4, 2, 0x8a, 0xee,
0xc5, 1, 0x0e, // _VMCTR1 VCOMH = 4V, VOML = -1.1V
0x20, 0, // _INVOFF //MISMATCh 0x2a vs 0x20
0x36, 1, 0x60, // _MADCTL bottom to top refresh
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// 1 clk cycle nonoverlap, 2 cycle gate rise, 3 sycle osc equalie,
// fix on VTL
0x3a, 1, 0x05, // COLMOD - 16bit color
0xe0, 0x10, 0x02, 0x1c, 0x07, 0x12,
0x37, 0x32, 0x29, 0x2d,
0x29, 0x25, 0x2B, 0x39,
0x00, 0x01, 0x03, 0x10, // _GMCTRP1 Gamma
0xe1, 0x10, 0x03, 0x1d, 0x07, 0x06,
0x2E, 0x2C, 0x29, 0x2D,
0x2E, 0x2E, 0x37, 0x3F,
0x00, 0x00, 0x02, 0x10, // _GMCTRN1
0x13, 0 | DELAY, 10, // _NORON
0x29, 0 | DELAY, 100, // _DISPON
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};
void board_init(void) {
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displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
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bus->base.type = &displayio_fourwire_type;
busio_spi_obj_t *internal_spi = &supervisor_flash_spi_bus;
common_hal_displayio_fourwire_construct(bus,
internal_spi,
&pin_PA08, // Command or data
&pin_PB12, // Chip select
&pin_PB10, // Reset
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24000000, // Baudrate
0, // Polarity
0); // Phase
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displayio_display_obj_t *display = &displays[0].display;
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display->base.type = &displayio_display_type;
common_hal_displayio_display_construct(display,
bus,
160, // Width
128, // Height
0, // column start
0, // row start
0, // rotation
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16, // Color depth
false, // Grayscale
false, // Pixels in a byte share a row. Only used for depth < 8
1, // bytes per cell. Only valid for depths < 8
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
MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command
MIPI_COMMAND_WRITE_MEMORY_START, // Write memory command
display_init_sequence,
sizeof(display_init_sequence),
&pin_PB03,
NO_BRIGHTNESS_COMMAND,
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1.0f, // brightness
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false, // single_byte_bounds
false, // data_as_commands
true, // auto_refresh
60, // native_frames_per_second
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true, // backlight_on_high
false, // SH1107_addressing
50000); // backlight pwm frequency
board_buzz_obj.base.type = &audiopwmio_pwmaudioout_type;
common_hal_audiopwmio_pwmaudioout_construct(&board_buzz_obj,
&pin_PB08, NULL, 0x8000);
never_reset_pin_number(pin_PB08.port, pin_PB08.number);
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}
// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.