mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-22 22:38:08 +00:00
504 lines
16 KiB
C
504 lines
16 KiB
C
/*
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* This file is part of the TREZOR project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include STM32_HAL_H
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// FSMC/FMC Bank 1 - NOR/PSRAM 1
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#define DISPLAY_MEMORY_BASE 0x60000000
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#define DISPLAY_MEMORY_PIN 16
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#define CMD(X) (*((__IO uint8_t *)((uint32_t)(DISPLAY_MEMORY_BASE))) = (X))
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#define ADDR \
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(*((__IO uint8_t *)((uint32_t)(DISPLAY_MEMORY_BASE | \
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(1 << DISPLAY_MEMORY_PIN)))))
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#define DATA(X) (ADDR) = (X)
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#define PIXELDATA(X) \
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DATA((X) >> 8); \
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DATA((X)&0xFF)
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#define LED_PWM_TIM_PERIOD (10000)
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#define DISPLAY_ID_ST7789V \
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0x858552U // section "9.1.3 RDDID (04h): Read Display ID" of ST7789V
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// datasheet
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#define DISPLAY_ID_GC9307 \
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0x009307U // section "6.2.1. Read display identification information (04h)"
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// of GC9307 datasheet
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#define DISPLAY_ID_ILI9341V \
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0x009341U // section "8.3.23 Read ID4 (D3h)" of ILI9341V datasheet
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static uint32_t read_display_id(uint8_t command) {
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volatile uint8_t c;
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uint32_t id = 0;
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CMD(command);
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c = ADDR; // first returned value is a dummy value and should be discarded
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c = ADDR;
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id |= (c << 16);
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c = ADDR;
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id |= (c << 8);
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c = ADDR;
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id |= c;
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return id;
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}
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static uint32_t display_identify(void) {
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static uint32_t id = 0x000000U;
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static char id_set = 0;
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if (id_set) return id; // return if id has been already set
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id = read_display_id(0x04); // RDDID: Read Display ID
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// the default RDDID for ILI9341 should be 0x8000.
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// some display modules return 0x0.
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// the ILI9341 has an extra id, let's check it here.
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if ((id != DISPLAY_ID_ST7789V) &&
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(id != DISPLAY_ID_GC9307)) { // if not ST7789V and not GC9307
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uint32_t id4 = read_display_id(0xD3); // Read ID4
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if (id4 == DISPLAY_ID_ILI9341V) { // definitely found a ILI9341
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id = id4;
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}
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}
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id_set = 1;
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return id;
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}
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static void __attribute__((unused)) display_sleep(void) {
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uint32_t id = display_identify();
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if ((id == DISPLAY_ID_ILI9341V) || (id == DISPLAY_ID_GC9307) ||
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(id == DISPLAY_ID_ST7789V)) {
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CMD(0x28); // DISPOFF: Display Off
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CMD(0x10); // SLPIN: Sleep in
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HAL_Delay(5); // need to wait 5 milliseconds after "sleep in" before
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// sending any new commands
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}
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}
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static void display_unsleep(void) {
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uint32_t id = display_identify();
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if ((id == DISPLAY_ID_ILI9341V) || (id == DISPLAY_ID_GC9307) ||
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(id == DISPLAY_ID_ST7789V)) {
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CMD(0x11); // SLPOUT: Sleep Out
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HAL_Delay(5); // need to wait 5 milliseconds after "sleep out" before
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// sending any new commands
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CMD(0x29); // DISPON: Display On
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}
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}
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static struct { uint16_t x, y; } BUFFER_OFFSET;
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static void display_set_window(uint16_t x0, uint16_t y0, uint16_t x1,
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uint16_t y1) {
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x0 += BUFFER_OFFSET.x;
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x1 += BUFFER_OFFSET.x;
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y0 += BUFFER_OFFSET.y;
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y1 += BUFFER_OFFSET.y;
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uint32_t id = display_identify();
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if ((id == DISPLAY_ID_ILI9341V) || (id == DISPLAY_ID_GC9307) ||
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(id == DISPLAY_ID_ST7789V)) {
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CMD(0x2A);
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DATA(x0 >> 8);
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DATA(x0 & 0xFF);
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DATA(x1 >> 8);
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DATA(x1 & 0xFF); // column addr set
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CMD(0x2B);
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DATA(y0 >> 8);
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DATA(y0 & 0xFF);
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DATA(y1 >> 8);
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DATA(y1 & 0xFF); // row addr set
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CMD(0x2C);
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}
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}
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static void display_set_orientation(int degrees) {
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char BX = 0, BY = 0;
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uint32_t id = display_identify();
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if ((id == DISPLAY_ID_ILI9341V) || (id == DISPLAY_ID_GC9307) ||
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(id == DISPLAY_ID_ST7789V)) {
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#define RGB (1 << 3)
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#define MV (1 << 5)
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#define MX (1 << 6)
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#define MY (1 << 7)
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// MADCTL: Memory Data Access Control - reference:
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// section 9.3 in the ILI9341 manual
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// section 6.2.18 in the GC9307 manual
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// section 8.12 in the ST7789V manual
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uint8_t display_command_parameter = 0;
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switch (degrees) {
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case 0:
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display_command_parameter = 0;
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BY = (id == DISPLAY_ID_GC9307);
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break;
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case 90:
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display_command_parameter = MV | MX;
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BX = (id == DISPLAY_ID_GC9307);
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break;
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case 180:
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display_command_parameter = MX | MY;
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BY = (id != DISPLAY_ID_GC9307);
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break;
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case 270:
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display_command_parameter = MV | MY;
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BX = (id != DISPLAY_ID_GC9307);
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break;
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}
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if (id == DISPLAY_ID_GC9307) {
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display_command_parameter ^= RGB | MY; // XOR RGB and MY settings
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}
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CMD(0x36);
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DATA(display_command_parameter);
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display_set_window(0, 0, DISPLAY_RESX - 1,
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DISPLAY_RESY - 1); // reset the column and page extents
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}
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BUFFER_OFFSET.x = BX ? (MAX_DISPLAY_RESY - DISPLAY_RESY) : 0;
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BUFFER_OFFSET.y = BY ? (MAX_DISPLAY_RESY - DISPLAY_RESY) : 0;
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}
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static void display_set_backlight(int val) {
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TIM1->CCR1 = LED_PWM_TIM_PERIOD * val / 255;
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}
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static void display_hardware_reset(void) {
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HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, GPIO_PIN_RESET); // LCD_RST/PC14
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// wait 10 milliseconds. only needs to be low for 10 microseconds.
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// my dev display module ties display reset and touch panel reset together.
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// keeping this low for max(display_reset_time, ctpm_reset_time) aids
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// development and does not hurt.
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HAL_Delay(10);
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HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, GPIO_PIN_SET); // LCD_RST/PC14
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HAL_Delay(120); // max wait time for hardware reset is 120 milliseconds
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// (experienced display flakiness using only 5ms wait before
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// sending commands)
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// identify the controller we will communicate with
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}
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void display_init(void) {
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// init peripherials
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__HAL_RCC_GPIOE_CLK_ENABLE();
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__HAL_RCC_TIM1_CLK_ENABLE();
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__HAL_RCC_FMC_CLK_ENABLE();
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GPIO_InitTypeDef GPIO_InitStructure;
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// LCD_PWM/PA7 (backlight control)
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GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStructure.Alternate = GPIO_AF1_TIM1;
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GPIO_InitStructure.Pin = GPIO_PIN_7;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
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// enable PWM timer
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TIM_HandleTypeDef TIM1_Handle;
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TIM1_Handle.Instance = TIM1;
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TIM1_Handle.Init.Period = LED_PWM_TIM_PERIOD - 1;
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// TIM1/APB2 source frequency equals to SystemCoreClock in our configuration,
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// we want 1 MHz
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TIM1_Handle.Init.Prescaler = SystemCoreClock / 1000000 - 1;
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TIM1_Handle.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
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TIM1_Handle.Init.CounterMode = TIM_COUNTERMODE_UP;
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TIM1_Handle.Init.RepetitionCounter = 0;
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HAL_TIM_PWM_Init(&TIM1_Handle);
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TIM_OC_InitTypeDef TIM_OC_InitStructure;
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TIM_OC_InitStructure.Pulse = 0;
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TIM_OC_InitStructure.OCMode = TIM_OCMODE_PWM2;
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TIM_OC_InitStructure.OCPolarity = TIM_OCPOLARITY_HIGH;
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TIM_OC_InitStructure.OCFastMode = TIM_OCFAST_DISABLE;
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TIM_OC_InitStructure.OCNPolarity = TIM_OCNPOLARITY_HIGH;
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TIM_OC_InitStructure.OCIdleState = TIM_OCIDLESTATE_SET;
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TIM_OC_InitStructure.OCNIdleState = TIM_OCNIDLESTATE_SET;
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HAL_TIM_PWM_ConfigChannel(&TIM1_Handle, &TIM_OC_InitStructure, TIM_CHANNEL_1);
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display_backlight(0);
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HAL_TIM_PWM_Start(&TIM1_Handle, TIM_CHANNEL_1);
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HAL_TIMEx_PWMN_Start(&TIM1_Handle, TIM_CHANNEL_1);
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// LCD_RST/PC14
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GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStructure.Alternate = 0;
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GPIO_InitStructure.Pin = GPIO_PIN_14;
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HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14,
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GPIO_PIN_RESET); // default to keeping display in reset
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HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
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// LCD_FMARK/PD12 (tearing effect)
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GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStructure.Alternate = 0;
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GPIO_InitStructure.Pin = GPIO_PIN_12;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
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GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStructure.Alternate = GPIO_AF12_FMC;
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// LCD_CS/PD7 LCD_RS/PD11 LCD_RD/PD4
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// LCD_WR/PD5
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GPIO_InitStructure.Pin = GPIO_PIN_7 | GPIO_PIN_11 | GPIO_PIN_4 | GPIO_PIN_5;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
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// LCD_D0/PD14 LCD_D1/PD15 LCD_D2/PD0
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// LCD_D3/PD1
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GPIO_InitStructure.Pin = GPIO_PIN_14 | GPIO_PIN_15 | GPIO_PIN_0 | GPIO_PIN_1;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
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// LCD_D4/PE7 LCD_D5/PE8 LCD_D6/PE9
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// LCD_D7/PE10
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GPIO_InitStructure.Pin = GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10;
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HAL_GPIO_Init(GPIOE, &GPIO_InitStructure);
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// Reference UM1725 "Description of STM32F4 HAL and LL drivers",
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// section 64.2.1 "How to use this driver"
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SRAM_HandleTypeDef external_display_data_sram;
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external_display_data_sram.Instance = FMC_NORSRAM_DEVICE;
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external_display_data_sram.Init.NSBank = FMC_NORSRAM_BANK1;
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external_display_data_sram.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE;
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external_display_data_sram.Init.MemoryType = FMC_MEMORY_TYPE_SRAM;
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external_display_data_sram.Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_8;
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external_display_data_sram.Init.BurstAccessMode =
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FMC_BURST_ACCESS_MODE_DISABLE;
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external_display_data_sram.Init.WaitSignalPolarity =
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FMC_WAIT_SIGNAL_POLARITY_LOW;
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external_display_data_sram.Init.WrapMode = FMC_WRAP_MODE_DISABLE;
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external_display_data_sram.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS;
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external_display_data_sram.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE;
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external_display_data_sram.Init.WaitSignal = FMC_WAIT_SIGNAL_DISABLE;
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external_display_data_sram.Init.ExtendedMode = FMC_EXTENDED_MODE_DISABLE;
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external_display_data_sram.Init.AsynchronousWait =
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FMC_ASYNCHRONOUS_WAIT_DISABLE;
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external_display_data_sram.Init.WriteBurst = FMC_WRITE_BURST_DISABLE;
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external_display_data_sram.Init.ContinuousClock =
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FMC_CONTINUOUS_CLOCK_SYNC_ONLY;
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external_display_data_sram.Init.PageSize = FMC_PAGE_SIZE_NONE;
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// reference RM0090 section 37.5 Table 259, 37.5.4, Mode 1 SRAM, and 37.5.6
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FMC_NORSRAM_TimingTypeDef normal_mode_timing;
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normal_mode_timing.AddressSetupTime = 4;
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normal_mode_timing.AddressHoldTime = 1;
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normal_mode_timing.DataSetupTime = 4;
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normal_mode_timing.BusTurnAroundDuration = 0;
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normal_mode_timing.CLKDivision = 2;
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normal_mode_timing.DataLatency = 2;
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normal_mode_timing.AccessMode = FMC_ACCESS_MODE_A;
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HAL_SRAM_Init(&external_display_data_sram, &normal_mode_timing, NULL);
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display_hardware_reset();
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uint32_t id = display_identify();
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if (id == DISPLAY_ID_GC9307) {
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CMD(0xFE); // Inter Register Enable1
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CMD(0xEF); // Inter Register Enable2
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CMD(0x35);
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DATA(0x00); // TEON: Tearing Effect Line On; V-blanking only
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CMD(0x3A);
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DATA(0x55); // COLMOD: Interface Pixel format; 65K color: 16-bit/pixel (RGB
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// 5-6-5 bits input)
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// CMD(0xE8); DATA(0x12); DATA(0x00); // Frame Rate
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CMD(0xC3);
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DATA(0x27); // Power Control 2
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CMD(0xC4);
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DATA(0x18); // Power Control 3
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CMD(0xC9);
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DATA(0x1F); // Power Control 4
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CMD(0xC5);
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DATA(0x0F);
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CMD(0xC6);
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DATA(0x00);
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CMD(0xC7);
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DATA(0x10);
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CMD(0xC8);
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DATA(0x01);
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CMD(0xFF);
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DATA(0x62);
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CMD(0x99);
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DATA(0x3E);
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CMD(0x9D);
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DATA(0x4B);
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CMD(0x8E);
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DATA(0x0F);
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// SET_GAMMA1
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CMD(0xF0);
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DATA(0x8F);
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DATA(0x1B);
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DATA(0x05);
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DATA(0x06);
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DATA(0x07);
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DATA(0x42);
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// SET_GAMMA3
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CMD(0xF2);
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DATA(0x5C);
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DATA(0x1F);
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DATA(0x12);
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DATA(0x10);
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DATA(0x07);
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DATA(0x43);
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// SET_GAMMA2
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CMD(0xF1);
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DATA(0x59);
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DATA(0xCF);
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DATA(0xCF);
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DATA(0x35);
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DATA(0x37);
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DATA(0x8F);
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// SET_GAMMA4
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CMD(0xF3);
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DATA(0x58);
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DATA(0xCF);
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DATA(0xCF);
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DATA(0x35);
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DATA(0x37);
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DATA(0x8F);
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} else if (id == DISPLAY_ID_ST7789V) {
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CMD(0x35);
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DATA(0x00); // TEON: Tearing Effect Line On; V-blanking only
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CMD(0x3A);
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DATA(0x55); // COLMOD: Interface Pixel format; 65K color: 16-bit/pixel (RGB
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// 5-6-5 bits input)
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CMD(0xDF);
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DATA(0x5A);
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DATA(0x69);
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DATA(0x02);
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DATA(0x01); // CMD2EN: Commands in command table 2 can be executed when
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// EXTC level is Low
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CMD(0xC0);
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DATA(0x20); // LCMCTRL: LCM Control: XOR RGB setting
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CMD(0xE4);
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DATA(0x1D);
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DATA(0x0A);
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DATA(0x11); // GATECTRL: Gate Control; NL = 240 gate lines, first scan line
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// is gate 80.; gate scan direction 319 -> 0
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// the above config is the most important and definitely necessary
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CMD(0xD0);
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DATA(0xA4);
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DATA(0xA1); // PWCTRL1: Power Control 1
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// gamma curve 1
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// CMD(0xE0); DATA(0x70); DATA(0x2C); DATA(0x2E); DATA(0x15); DATA(0x10);
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// DATA(0x09); DATA(0x48); DATA(0x33); DATA(0x53); DATA(0x0B); DATA(0x19);
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// DATA(0x18); DATA(0x20); DATA(0x25); gamma curve 2 CMD(0xE1); DATA(0x70);
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// DATA(0x2C); DATA(0x2E); DATA(0x15); DATA(0x10); DATA(0x09); DATA(0x48);
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// DATA(0x33); DATA(0x53); DATA(0x0B); DATA(0x19); DATA(0x18); DATA(0x20);
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// DATA(0x25);
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} else if (id == DISPLAY_ID_ILI9341V) {
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// most recent manual: https://www.newhavendisplay.com/app_notes/ILI9341.pdf
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CMD(0x35);
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DATA(0x00); // TEON: Tearing Effect Line On; V-blanking only
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CMD(0x3A);
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DATA(0x55); // COLMOD: Interface Pixel format; 65K color: 16-bit/pixel (RGB
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// 5-6-5 bits input)
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CMD(0xB6);
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DATA(0x0A);
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DATA(0xC2);
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DATA(0x27);
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DATA(0x00); // Display Function Control: gate scan direction 319 -> 0
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CMD(0xF6);
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DATA(0x09);
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DATA(0x30);
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DATA(0x00); // Interface Control: XOR BGR as ST7789V does
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// the above config is the most important and definitely necessary
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CMD(0xCF);
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DATA(0x00);
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DATA(0xC1);
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DATA(0x30);
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CMD(0xED);
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DATA(0x64);
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DATA(0x03);
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DATA(0x12);
|
|
DATA(0x81);
|
|
CMD(0xE8);
|
|
DATA(0x85);
|
|
DATA(0x10);
|
|
DATA(0x7A);
|
|
CMD(0xF7);
|
|
DATA(0x20);
|
|
CMD(0xEA);
|
|
DATA(0x00);
|
|
DATA(0x00);
|
|
CMD(0xC0);
|
|
DATA(0x23); // power control VRH[5:0]
|
|
CMD(0xC1);
|
|
DATA(0x12); // power control SAP[2:0] BT[3:0]
|
|
CMD(0xC5);
|
|
DATA(0x60);
|
|
DATA(0x44); // vcm control 1
|
|
CMD(0xC7);
|
|
DATA(0x8A); // vcm control 2
|
|
CMD(0xB1);
|
|
DATA(0x00);
|
|
DATA(0x18); // framerate
|
|
CMD(0xF2);
|
|
DATA(0x00); // 3 gamma func disable
|
|
// gamma curve 1
|
|
CMD(0xE0);
|
|
DATA(0x0F);
|
|
DATA(0x2F);
|
|
DATA(0x2C);
|
|
DATA(0x0B);
|
|
DATA(0x0F);
|
|
DATA(0x09);
|
|
DATA(0x56);
|
|
DATA(0xD9);
|
|
DATA(0x4A);
|
|
DATA(0x0B);
|
|
DATA(0x14);
|
|
DATA(0x05);
|
|
DATA(0x0C);
|
|
DATA(0x06);
|
|
DATA(0x00);
|
|
// gamma curve 2
|
|
CMD(0xE1);
|
|
DATA(0x00);
|
|
DATA(0x10);
|
|
DATA(0x13);
|
|
DATA(0x04);
|
|
DATA(0x10);
|
|
DATA(0x06);
|
|
DATA(0x25);
|
|
DATA(0x26);
|
|
DATA(0x3B);
|
|
DATA(0x04);
|
|
DATA(0x0B);
|
|
DATA(0x0A);
|
|
DATA(0x33);
|
|
DATA(0x39);
|
|
DATA(0x0F);
|
|
}
|
|
|
|
display_clear();
|
|
display_unsleep();
|
|
}
|
|
|
|
void display_refresh(void) {
|
|
uint32_t id = display_identify();
|
|
if (id && (id != DISPLAY_ID_GC9307)) {
|
|
// synchronize with the panel synchronization signal in order to avoid
|
|
// visual tearing effects
|
|
while (GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_12)) {
|
|
}
|
|
while (GPIO_PIN_SET == HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_12)) {
|
|
}
|
|
}
|
|
}
|
|
|
|
const char *display_save(const char *prefix) {
|
|
return NULL;
|
|
}
|