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‎ports/espressif/boards/elecrow_crowpanel_4_2_epaper/board.c

Lines changed: 1 addition & 130 deletions
Original file line numberDiff line numberDiff line change
@@ -1,138 +1,9 @@
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// This file is part of the CircuitPython project: https://circuitpython.org
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//
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// SPDX-FileCopyrightText: Copyright (c) 2020 Joey Castillo
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// SPDX-FileCopyrightText: Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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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/fourwire/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-module/displayio/mipi_constants.h"
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#include "shared-bindings/board/__init__.h"
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#include "shared-bindings/digitalio/DigitalInOut.h"
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#define HEIGHT 300
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#define WIDTH 400
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// Sequences pulled from InkyWhat driver (https://github.com/alanta/CircuitPython_InkyWhat)
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uint8_t start_sequence[] = {
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0x12, 0x80, 0x80, // Software reset ✅ TODO wait for busy instead of fixed delay
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0x12, 0x80, 0x80, // Software reset ✅ TODO wait for busy instead of fixed delay
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0x74, 0x01, 0x54, // set analog block control ✅
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0x7e, 0x01, 0x3b, // set digital block control ✅
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0x01, 0x03, 0x2b, 0x01, 0x00, // driver output control
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0x03, 0x01, 0x17, // Gate driving voltage ✅
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0x04, 0x03, 0x07, 0xac, 0x32, // Source Driving voltage ✅
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0x3a, 0x01, 0x07, // Dummy line period ✅
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0x3b, 0x01, 0x04, // Gate line width ✅
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0x3c, 0x01, 0x00, // Border color
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0x2c, 0x01, 0x3c, // VCOM Register, 0x3c = -1.5v? ✅
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0x22, 0x01, 0xc7, // Display update sequence ✅
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0x04, 0x03, 0x07, 0xac, 0x32, // Set voltage of VSH and VSL (yellow)
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// LUT (yellow)
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0x32, 0x46,
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0xfa, 0x94, 0x8c, 0xc0, 0xd0, 0x00, 0x00,
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0xfa, 0x94, 0x2c, 0x80, 0xe0, 0x00, 0x00,
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0xfa, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xfa, 0x94, 0xf8, 0x80, 0x50, 0x00, 0xcc,
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0xbf, 0x58, 0xfc, 0x80, 0xd0, 0x00, 0x11,
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0x40, 0x10, 0x40, 0x10, 0x08,
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0x08, 0x10, 0x04, 0x04, 0x10,
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0x08, 0x08, 0x03, 0x08, 0x20,
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0x08, 0x04, 0x00, 0x00, 0x10,
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0x10, 0x08, 0x08, 0x00, 0x20,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00,
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0x11, 0x01, 0x03, // Data entry mode setting 0x03 = X/Y increment ✅
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// self._send_command(0x44, [0x00, (self.cols // 8) - 1]) # Set RAM X Start/End
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0x44, 0x02, 0x00, 0x31, // Set RAM X Start/End
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// self._send_command(0x45, [0x00, 0x00] + packed_height) # Set RAM Y Start/End
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0x45, 0x04, 0x00, 0x00, 0x2b, 0x01, // Set RAM Y Start/End
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};
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uint8_t stop_sequence[] = {
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0x10, 0x01, 0x01 // Enter Deep Sleep
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};
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uint8_t refresh_sequence[] = {
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0x20, 0x00
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};
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void board_init(void) {
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// Pull EPD Enable pin high
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digitalio_digitalinout_obj_t vext_pin_obj;
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vext_pin_obj.base.type = &digitalio_digitalinout_type;
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common_hal_digitalio_digitalinout_construct(&vext_pin_obj, &pin_GPIO7);
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common_hal_digitalio_digitalinout_switch_to_output(&vext_pin_obj, true, DRIVE_MODE_PUSH_PULL);
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common_hal_digitalio_digitalinout_never_reset(&vext_pin_obj);
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// Set up SPI bus
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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_GPIO12, &pin_GPIO11, 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(bus,
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spi,
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&pin_GPIO46, // EPD_DC Command or data
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&pin_GPIO45, // EPD_CS Chip select
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&pin_GPIO47, // 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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// Set up EPD object
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epaperdisplay_epaperdisplay_obj_t *display = &allocate_display()->epaper_display;
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display->base.type = &epaperdisplay_epaperdisplay_type;
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common_hal_epaperdisplay_epaperdisplay_construct(display,
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bus,
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start_sequence,
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sizeof(start_sequence),
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0, // start up time
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stop_sequence,
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sizeof(stop_sequence),
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WIDTH, // width
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HEIGHT, // height
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300, // RAM width
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400, // RAM height
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0, // colstart
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0, // rowstart
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90, // 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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0x4E, // set_current_column_command
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0x4F, // set_current_row_command
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0x24, // write_black_ram_command
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false, // black_bits_inverted
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0x26, // write_color_ram_command (can add this for grayscale eventually)
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false, // color_bits_inverted
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0x000000, // highlight_color
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refresh_sequence, // refresh_display_sequence
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sizeof(refresh_sequence),
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40, // refresh_time
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&pin_GPIO48, // busy_pin
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false, // busy_state
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5, // seconds_per_frame
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false, // chip_select (don't always toggle chip select)
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false, // grayscale
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false, // 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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void board_deinit(void) {
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epaperdisplay_epaperdisplay_obj_t *display = &displays[0].epaper_display;
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if (display->base.type == &epaperdisplay_epaperdisplay_type) {
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while (common_hal_epaperdisplay_epaperdisplay_get_busy(display)) {
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RUN_BACKGROUND_TASKS;
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}
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}
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common_hal_displayio_release_displays();
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}
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// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.

‎ports/espressif/boards/elecrow_crowpanel_4_2_epaper/board.c.epd

Lines changed: 0 additions & 138 deletions
This file was deleted.

‎ports/espressif/boards/elecrow_crowpanel_4_2_epaper/mpconfigboard.mk

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -9,7 +9,7 @@ CIRCUITPY_ESP_USB_SERIAL_JTAG = 0
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IDF_TARGET = esp32s3
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CIRCUITPY_ESP_FLASH_SIZE = 8MB
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CIRCUITPY_ESP_FLASH_MODE = dio
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CIRCUITPY_ESP_FLASH_MODE = qio
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CIRCUITPY_ESP_FLASH_FREQ = 80m
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CIRCUITPY_ESP_PSRAM_SIZE = 8MB

‎ports/espressif/boards/elecrow_crowpanel_4_2_epaper/sdkconfig

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#
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# LWIP
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#
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CONFIG_ESP_PHY_ENABLE_USB=n
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# end of LWIP
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# end of Component config

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