115 lines
4.1 KiB
C
115 lines
4.1 KiB
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) 2021 Scott Shawcroft for Adafruit Industries
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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/busio/SPI.h"
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#include "shared-bindings/displayio/FourWire.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-bindings/board/__init__.h"
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#include "supervisor/shared/board.h"
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#define DELAY 0x80
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// This is an SPD1656 control chip. The display is a 5.7" ACeP EInk.
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const uint8_t display_start_sequence[] = {
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0x01, 4, 0x37, 0x00, 0x23, 0x23, // power setting
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0x00, 2, 0xef, 0x08, // panel setting (PSR)
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0x03, 1, 0x00, // PFS
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0x06, 3, 0xc7, 0xc7, 0x1d, // booster
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0x30, 1, 0x3c, // PLL setting
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0x41, 1, 0x00, // TSE
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0x50, 1, 0x37, // vcom and data interval setting
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0x60, 1, 0x22, // tcon setting
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0x61, 4, 0x02, 0x58, 0x01, 0xc0, // tres
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0xe3, 1, 0xaa, // PWS
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0x04, DELAY | 0, 0xc8, // VCM DC and delay 200ms
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};
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const uint8_t display_stop_sequence[] = {
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0x02, 1, 0x00, // power off
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0x07, 1, 0xa5 // deep sleep
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};
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const uint8_t refresh_sequence[] = {
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0x12, 0x00
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};
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void board_init(void) {
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displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
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busio_spi_obj_t *spi = common_hal_board_create_spi(0);
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bus->base.type = &displayio_fourwire_type;
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common_hal_displayio_fourwire_construct(bus,
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spi,
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&pin_GPIO28, // EPD_DC Command or data
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&pin_GPIO17, // EPD_CS Chip select
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&pin_GPIO27, // EPD_RST Reset
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1000000, // Baudrate
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0, // Polarity
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0); // Phase
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displayio_epaperdisplay_obj_t *display = &allocate_display()->epaper_display;
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display->base.type = &displayio_epaperdisplay_type;
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common_hal_displayio_epaperdisplay_construct(
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display,
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bus,
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display_start_sequence, sizeof(display_start_sequence),
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1.0, // start up time
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display_stop_sequence, sizeof(display_stop_sequence),
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600, // width
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448, // height
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640, // ram_width
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480, // ram_height
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0, // colstart
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0, // rowstart
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180, // rotation
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NO_COMMAND, // set_column_window_command
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NO_COMMAND, // set_row_window_command
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NO_COMMAND, // set_current_column_command
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NO_COMMAND, // set_current_row_command
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0x10, // write_black_ram_command
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false, // black_bits_inverted
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NO_COMMAND, // write_color_ram_command
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false, // color_bits_inverted
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0x000000, // highlight_color
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refresh_sequence, sizeof(refresh_sequence),
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28.0, // refresh_time
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NULL, // busy_pin
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false, // busy_state
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30.0, // seconds_per_frame
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false, // always_toggle_chip_select
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false, // grayscale
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true, // acep
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false, // two_byte_sequence_length
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false); // address_little_endian
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}
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// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.
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