Diaplay seems to be working for some degree
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4 changed files with 258 additions and 49 deletions
74
App/ILI9341.c
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74
App/ILI9341.c
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#include "stm32f4xx_hal.h"
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#include "main.h"
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#include "ILI9341.h"
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#include <inttypes.h>
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#include <string.h>
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#include <stdarg.h>
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#define LCD_W 240
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#define LCD_H 320
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void ili9341_cmd_write(uint16_t cmd, uint16_t cnt, ...)
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{
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va_list argp;
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va_start(argp, cnt);
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LCD_REG = cmd;
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for(uint16_t n = 0; n < cnt; ++n) {
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LCD_RAM = (uint16_t) va_arg(argp, uint32_t);
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}
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va_end(argp);
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}
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void ili9341_cmd_read(uint16_t cmd, uint16_t cnt, uint16_t *results)
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{
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LCD_REG = cmd;
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for(uint16_t n = 0; n < cnt; ++n) {
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*results++ = LCD_RAM;
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}
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}
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void ili9341_init(void)
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{
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// volatile uint16_t id[5];
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LCD_REG = ILI9341_RESET;
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HAL_Delay(10);
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LCD_REG = ILI9341_DISPLAY_OFF;
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ili9341_cmd_write(ILI9341_POWERA, 5, 0x39, 0x2C, 0x00, 0x34, 0x02);
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ili9341_cmd_write(ILI9341_POWERB, 3, 0x00, 0xC1, 0x30);
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ili9341_cmd_write(ILI9341_DTCA, 3, 0x85, 0x00, 0x78);
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ili9341_cmd_write(ILI9341_DTCB, 2, 0x00, 0x00);
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ili9341_cmd_write(ILI9341_POWER_SEQ, 4, 0x64, 0x03, 0x12, 0x81);
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ili9341_cmd_write(ILI9341_PRC, 1, 0x20);
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ili9341_cmd_write(ILI9341_POWER1, 1, 0x23);
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ili9341_cmd_write(ILI9341_POWER2, 1, 0x10);
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ili9341_cmd_write(ILI9341_VCOM1, 2, 0x3E, 0x28);
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ili9341_cmd_write(ILI9341_VCOM2, 1, 0x86);
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ili9341_cmd_write(ILI9341_MAC, 1, 0x48);
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ili9341_cmd_write(ILI9341_PIXEL_FORMAT, 1, 0x55);
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ili9341_cmd_write(ILI9341_FRC, 2, 0x00, 0x18);
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ili9341_cmd_write(ILI9341_DFC, 3, 0x08, 0x82, 0x27);
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ili9341_cmd_write(ILI9341_3GAMMA_EN, 1, 0x00);
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ili9341_cmd_write(ILI9341_COLUMN_ADDR, 4, 0x00, 0x00, 0x00, 0xEF);
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ili9341_cmd_write(ILI9341_PAGE_ADDR, 4, 0x00, 0x00, 0x01, 0x3F);
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ili9341_cmd_write(ILI9341_GAMMA, 1, 0x01);
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ili9341_cmd_write(ILI9341_PGAMMA, 15, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, 0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03, 0x0E, 0x09, 0x00);
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ili9341_cmd_write(ILI9341_NGAMMA, 15, 0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, 0x31, 0xC1, 0x48, 0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F);
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LCD_REG = ILI9341_SLEEP_OUT;
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HAL_Delay(100);
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LCD_REG = ILI9341_DISPLAY_ON;
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LCD_REG = ILI9341_GRAM;
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uint16_t fillers[4] = { 0xf800, 0x7e0, 0x1f, 0xffff };
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for(uint32_t y = 0; y < LCD_H; ++y) {
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uint32_t x;
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for(x = 0; x < LCD_W / 2; ++x) {
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LCD_RAM = fillers[ (x&0x18) >> 3 ];
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}
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for( ; x < LCD_W; ++x) {
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LCD_RAM = 0;
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}
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}
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}
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120
App/ILI9341.h
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120
App/ILI9341.h
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#ifndef __ili9341_H
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#define __ili9341_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define LCD_REG (*((volatile unsigned short *) 0x60000000)) /* DC = 0 */
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#define LCD_RAM (*((volatile unsigned short *) 0x60080000)) /* DC = 1 */
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/* Includes ------------------------------------------------------------------*/
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#define ILI9341_NOP 0x00
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#define ILI9341_RESET 0x01
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#define ILI9341_READ_DISPLAY_IDENTIFICATION_INFORMATION 0x04
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#define ILI9341_READ_DISPLAY_STATUS 0x09
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#define ILI9341_READ_DISPLAY_POWER_MODE 0x0A
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#define ILI9341_READ_DISPLAY_MADCTL 0x0B
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#define ILI9341_READ_DISPLAY_PIXEL_FORMAT 0x0C
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#define ILI9341_READ_DISPLAY_IMAGE_FORMAT 0x0D
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#define ILI9341_READ_DISPLAY_SIGNAL_MODE 0x0E
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#define ILI9341_READ_DISPLAY_SELF_DIAGNOSTIC_RESULT 0x0F
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#define ILI9341_ENTER_SLEEP_MODE 0x10
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#define ILI9341_SLEEP_OUT 0x11
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#define ILI9341_PARTIAL_MODE_ON 0x12
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#define ILI9341_NORMAL_DISPLAY_MODE_ON 0x13
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#define ILI9341_DISPLAY_INVERSION_OFF 0x20
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#define ILI9341_DISPLAY_INVERSION_ON 0x21
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#define ILI9341_GAMMA 0x26
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#define ILI9341_DISPLAY_OFF 0x28
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#define ILI9341_DISPLAY_ON 0x29
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#define ILI9341_COLUMN_ADDR 0x2A
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#define ILI9341_PAGE_ADDR 0x2B
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#define ILI9341_GRAM 0x2C
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#define ILI9341_COLOR_SET 0x2D
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#define ILI9341_MEMORY_READ 0x2E
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#define ILI9341_PARTIAL_AREA 0x30
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#define ILI9341_VERTICAL_SCROLLING_DEFINITION 0x33
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#define ILI9341_TEARING_EFFECT_LINE_OFF 0x34
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#define ILI9341_TEARING_EFFECT_LINE_ON 0x35
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#define ILI9341_MAC 0x36
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#define ILI9341_VERTICAL_SCROLLING_START_ADDRESS 0x37
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#define ILI9341_IDLE_MODE_OFF 0x38
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#define ILI9341_IDLE_MODE_ON 0x39
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#define ILI9341_PIXEL_FORMAT 0x3A
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#define ILI9341_WMC 0x3C
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#define ILI9341_RMC 0x3E
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#define ILI9341_SET_TEAR_SCANLINE 0x44
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#define ILI9341_WDB 0x51
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#define ILI9341_READ_DISPLAY_BRIGHTNESS 0x52
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#define ILI9341_WCD 0x53
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#define ILI9341_READ_CTRL_DISPLAY 0x54
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#define ILI9341_WCABC 0x55
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#define ILI9341_RCABC 0x56
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#define ILI9341_WCABCMB 0x5E
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#define ILI9341_RCABCMB 0x5F
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#define ILI9341_RGB_INTERFACE 0xB0
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#define ILI9341_FRC 0xB1
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#define ILI9341_FRAME_CTRL_NM 0xB2
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#define ILI9341_FRAME_CTRL_IM 0xB3
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#define ILI9341_FRAME_CTRL_PM 0xB4
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#define ILI9341_BPC 0xB5
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#define ILI9341_DFC 0xB6
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#define ILI9341_ENTRY_MODE_SET 0xB7
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#define ILI9341_BACKLIGHT_CONTROL_1 0xB8
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#define ILI9341_BACKLIGHT_CONTROL_2 0xB9
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#define ILI9341_BACKLIGHT_CONTROL_3 0xBA
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#define ILI9341_BACKLIGHT_CONTROL_4 0xBB
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#define ILI9341_BACKLIGHT_CONTROL_5 0xBC
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#define ILI9341_BACKLIGHT_CONTROL_6 0xBD
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#define ILI9341_BACKLIGHT_CONTROL_7 0xBE
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#define ILI9341_BACKLIGHT_CONTROL_8 0xBF
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#define ILI9341_POWER1 0xC0
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#define ILI9341_POWER2 0xC1
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#define ILI9341_VCOM1 0xC5
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#define ILI9341_VCOM2 0xC7
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#define ILI9341_POWERA 0xCB
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#define ILI9341_POWERB 0xCF
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#define ILI9341_READ_ID1 0xDA
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#define ILI9341_READ_ID2 0xDB
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#define ILI9341_READ_ID3 0xDC
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#define ILI9341_PGAMMA 0xE0
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#define ILI9341_NGAMMA 0xE1
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#define ILI9341_DTCA 0xE8
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#define ILI9341_DTCB 0xEA
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#define ILI9341_POWER_SEQ 0xED
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#define ILI9341_3GAMMA_EN 0xF2
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#define ILI9341_INTERFACE 0xF6
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#define ILI9341_PRC 0xF7
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// Color definitions
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#define ILI9341_BLACK 0x0000 /* 0, 0, 0 */
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#define ILI9341_NAVY 0x000F /* 0, 0, 128 */
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#define ILI9341_DARKGREEN 0x03E0 /* 0, 128, 0 */
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#define ILI9341_DARKCYAN 0x03EF /* 0, 128, 128 */
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#define ILI9341_MAROON 0x7800 /* 128, 0, 0 */
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#define ILI9341_PURPLE 0x780F /* 128, 0, 128 */
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#define ILI9341_OLIVE 0x7BE0 /* 128, 128, 0 */
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#define ILI9341_LIGHTGREY 0xC618 /* 192, 192, 192 */
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#define ILI9341_DARKGREY 0x7BEF /* 128, 128, 128 */
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#define ILI9341_BLUE 0x001F /* 0, 0, 255 */
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#define ILI9341_GREEN 0x07E0 /* 0, 255, 0 */
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#define ILI9341_CYAN 0x07FF /* 0, 255, 255 */
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#define ILI9341_RED 0xF800 /* 255, 0, 0 */
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#define ILI9341_MAGENTA 0xF81F /* 255, 0, 255 */
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#define ILI9341_YELLOW 0xFFE0 /* 255, 255, 0 */
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#define ILI9341_WHITE 0xFFFF /* 255, 255, 255 */
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#define ILI9341_ORANGE 0xFD20 /* 255, 165, 0 */
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#define ILI9341_GREENYELLOW 0xAFE5 /* 173, 255, 47 */
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#define ILI9341_PINK 0xF81F
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void ili9341_Reset(void);
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void ili9341_writeData(char Data);
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void ili9341_writeCommand(char Command);
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void ili9341_init(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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