stm32cubemx新建工程代码，并生成工程
设置gpio
设置SPI
其他的参考stm32默认设置
然后编辑驱动代码 ili9341.h
cpp
#ifndef ILI9341_H
#define ILI9341_H
#include <stdbool.h>
#include <stdint.h>
#include "glcdfont.h"
#include "stm32f4xx_hal.h"
#define ILI9341_TFTWIDTH 240
#define ILI9341_TFTHEIGHT 320
#define ILI9341_NOP 0x00
#define ILI9341_SWRESET 0x01
#define ILI9341_RDDID 0x04
#define ILI9341_RDDST 0x09
#define ILI9341_SLPIN 0x10
#define ILI9341_SLPOUT 0x11
#define ILI9341_PTLON 0x12
#define ILI9341_NORON 0x13
#define ILI9341_RDMODE 0x0A
#define ILI9341_RDMADCTL 0x0B
#define ILI9341_RDPIXFMT 0x0C
#define ILI9341_RDIMGFMT 0x0D
#define ILI9341_RDSELFDIAG 0x0F
#define ILI9341_INVOFF 0x20
#define ILI9341_INVON 0x21
#define ILI9341_GAMMASET 0x26
#define ILI9341_DISPOFF 0x28
#define ILI9341_DISPON 0x29
#define ILI9341_CASET 0x2A
#define ILI9341_PASET 0x2B
#define ILI9341_RAMWR 0x2C
#define ILI9341_RAMRD 0x2E
#define ILI9341_PTLAR 0x30
#define ILI9341_MADCTL 0x36
#define ILI9341_PIXFMT 0x3A
#define ILI9341_FRMCTR1 0xB1
#define ILI9341_FRMCTR2 0xB2
#define ILI9341_FRMCTR3 0xB3
#define ILI9341_INVCTR 0xB4
#define ILI9341_DFUNCTR 0xB6
#define ILI9341_PWCTR1 0xC0
#define ILI9341_PWCTR2 0xC1
#define ILI9341_PWCTR3 0xC2
#define ILI9341_PWCTR4 0xC3
#define ILI9341_PWCTR5 0xC4
#define ILI9341_VMCTR1 0xC5
#define ILI9341_VMCTR2 0xC7
#define ILI9341_RDID1 0xDA
#define ILI9341_RDID2 0xDB
#define ILI9341_RDID3 0xDC
#define ILI9341_RDID4 0xDD
#define ILI9341_GMCTRP1 0xE0
#define ILI9341_GMCTRN1 0xE1
/*
#define ILI9341_PWCTR6 0xFC
*/
// Color definitions
#define ILI9341_BLACK 0x0000 /* 0, 0, 0 */
#define ILI9341_NAVY 0x000F /* 0, 0, 128 */
#define ILI9341_DARKGREEN 0x03E0 /* 0, 128, 0 */
#define ILI9341_DARKCYAN 0x03EF /* 0, 128, 128 */
#define ILI9341_MAROON 0x7800 /* 128, 0, 0 */
#define ILI9341_PURPLE 0x780F /* 128, 0, 128 */
#define ILI9341_OLIVE 0x7BE0 /* 128, 128, 0 */
#define ILI9341_LIGHTGREY 0xC618 /* 192, 192, 192 */
#define ILI9341_DARKGREY 0x7BEF /* 128, 128, 128 */
#define ILI9341_BLUE 0x001F /* 0, 0, 255 */
#define ILI9341_GREEN 0x07E0 /* 0, 255, 0 */
#define ILI9341_CYAN 0x07FF /* 0, 255, 255 */
#define ILI9341_RED 0xF800 /* 255, 0, 0 */
#define ILI9341_MAGENTA 0xF81F /* 255, 0, 255 */
#define ILI9341_YELLOW 0xFFE0 /* 255, 255, 0 */
#define ILI9341_WHITE 0xFFFF /* 255, 255, 255 */
#define ILI9341_ORANGE 0xFD20 /* 255, 165, 0 */
#define ILI9341_GREENYELLOW 0xAFE5 /* 173, 255, 47 */
#define ILI9341_PINK 0xF81F
void ILI9341_begin(SPI_HandleTypeDef *hSpi);
void ILI9341_drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
void ILI9341_fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
void ILI9341_drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color);
void ILI9341_drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
void ILI9341_fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
void ILI9341_fillScreen(uint16_t color);
void ILI9341_invertDisplay(bool i);
void ILI9341_drawRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, int16_t r, uint16_t color);
void ILI9341_fillRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, int16_t r, uint16_t color);
void ILI9341_drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
void ILI9341_fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
void ILI9341_setTextSize(uint8_t s);
void ILI9341_setTextColor(uint16_t c);
void ILI9341_setTextBgColor(uint16_t c);
void ILI9341_setTextWrap(bool w);
void ILI9341_setCursor(int16_t x, int16_t y);
uint16_t ILI9341_getCursorX(void);
uint16_t ILI9341_getCursorY(void);
void ILI9341_write(uint8_t c);
void ILI9341_getTextBounds(char *str, int16_t x, int16_t y, int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h);
void ILI9341_cp437(bool x);
uint16_t ILI9341_width(void);
uint16_t ILI9341_height(void);
void ILI9341_pushColor(uint16_t color);
void ILI9341_drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
void ILI9341_drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
uint16_t ILI9341_color565(uint8_t r, uint8_t g, uint8_t b);
void ILI9341_setRotation(uint8_t m);
uint16_t ILI9341_getRotation(void);
#endifglcdfont.h
cpp
#ifndef GLCDFONT_H
#define GLCDFONT_H
static const unsigned char font[] = {
0x00, 0x00, 0x00, 0x00, 0x00,
0x3E, 0x5B, 0x4F, 0x5B, 0x3E,
0x3E, 0x6B, 0x4F, 0x6B, 0x3E,
0x1C, 0x3E, 0x7C, 0x3E, 0x1C,
0x18, 0x3C, 0x7E, 0x3C, 0x18,
0x1C, 0x57, 0x7D, 0x57, 0x1C,
0x1C, 0x5E, 0x7F, 0x5E, 0x1C,
0x00, 0x18, 0x3C, 0x18, 0x00,
0xFF, 0xE7, 0xC3, 0xE7, 0xFF,
0x00, 0x18, 0x24, 0x18, 0x00,
0xFF, 0xE7, 0xDB, 0xE7, 0xFF,
0x30, 0x48, 0x3A, 0x06, 0x0E,
0x26, 0x29, 0x79, 0x29, 0x26,
0x40, 0x7F, 0x05, 0x05, 0x07,
0x40, 0x7F, 0x05, 0x25, 0x3F,
0x5A, 0x3C, 0xE7, 0x3C, 0x5A,
0x7F, 0x3E, 0x1C, 0x1C, 0x08,
0x08, 0x1C, 0x1C, 0x3E, 0x7F,
0x14, 0x22, 0x7F, 0x22, 0x14,
0x5F, 0x5F, 0x00, 0x5F, 0x5F,
0x06, 0x09, 0x7F, 0x01, 0x7F,
0x00, 0x66, 0x89, 0x95, 0x6A,
0x60, 0x60, 0x60, 0x60, 0x60,
0x94, 0xA2, 0xFF, 0xA2, 0x94,
0x08, 0x04, 0x7E, 0x04, 0x08,
0x10, 0x20, 0x7E, 0x20, 0x10,
0x08, 0x08, 0x2A, 0x1C, 0x08,
0x08, 0x1C, 0x2A, 0x08, 0x08,
0x1E, 0x10, 0x10, 0x10, 0x10,
0x0C, 0x1E, 0x0C, 0x1E, 0x0C,
0x30, 0x38, 0x3E, 0x38, 0x30,
0x06, 0x0E, 0x3E, 0x0E, 0x06,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x5F, 0x00, 0x00,
0x00, 0x07, 0x00, 0x07, 0x00,
0x14, 0x7F, 0x14, 0x7F, 0x14,
0x24, 0x2A, 0x7F, 0x2A, 0x12,
0x23, 0x13, 0x08, 0x64, 0x62,
0x36, 0x49, 0x56, 0x20, 0x50,
0x00, 0x08, 0x07, 0x03, 0x00,
0x00, 0x1C, 0x22, 0x41, 0x00,
0x00, 0x41, 0x22, 0x1C, 0x00,
0x2A, 0x1C, 0x7F, 0x1C, 0x2A,
0x08, 0x08, 0x3E, 0x08, 0x08,
0x00, 0x80, 0x70, 0x30, 0x00,
0x08, 0x08, 0x08, 0x08, 0x08,
0x00, 0x00, 0x60, 0x60, 0x00,
0x20, 0x10, 0x08, 0x04, 0x02,
0x3E, 0x51, 0x49, 0x45, 0x3E,
0x00, 0x42, 0x7F, 0x40, 0x00,
0x72, 0x49, 0x49, 0x49, 0x46,
0x21, 0x41, 0x49, 0x4D, 0x33,
0x18, 0x14, 0x12, 0x7F, 0x10,
0x27, 0x45, 0x45, 0x45, 0x39,
0x3C, 0x4A, 0x49, 0x49, 0x31,
0x41, 0x21, 0x11, 0x09, 0x07,
0x36, 0x49, 0x49, 0x49, 0x36,
0x46, 0x49, 0x49, 0x29, 0x1E,
0x00, 0x00, 0x14, 0x00, 0x00,
0x00, 0x40, 0x34, 0x00, 0x00,
0x00, 0x08, 0x14, 0x22, 0x41,
0x14, 0x14, 0x14, 0x14, 0x14,
0x00, 0x41, 0x22, 0x14, 0x08,
0x02, 0x01, 0x59, 0x09, 0x06,
0x3E, 0x41, 0x5D, 0x59, 0x4E,
0x7C, 0x12, 0x11, 0x12, 0x7C,
0x7F, 0x49, 0x49, 0x49, 0x36,
0x3E, 0x41, 0x41, 0x41, 0x22,
0x7F, 0x41, 0x41, 0x41, 0x3E,
0x7F, 0x49, 0x49, 0x49, 0x41,
0x7F, 0x09, 0x09, 0x09, 0x01,
0x3E, 0x41, 0x41, 0x51, 0x73,
0x7F, 0x08, 0x08, 0x08, 0x7F,
0x00, 0x41, 0x7F, 0x41, 0x00,
0x20, 0x40, 0x41, 0x3F, 0x01,
0x7F, 0x08, 0x14, 0x22, 0x41,
0x7F, 0x40, 0x40, 0x40, 0x40,
0x7F, 0x02, 0x1C, 0x02, 0x7F,
0x7F, 0x04, 0x08, 0x10, 0x7F,
0x3E, 0x41, 0x41, 0x41, 0x3E,
0x7F, 0x09, 0x09, 0x09, 0x06,
0x3E, 0x41, 0x51, 0x21, 0x5E,
0x7F, 0x09, 0x19, 0x29, 0x46,
0x26, 0x49, 0x49, 0x49, 0x32,
0x03, 0x01, 0x7F, 0x01, 0x03,
0x3F, 0x40, 0x40, 0x40, 0x3F,
0x1F, 0x20, 0x40, 0x20, 0x1F,
0x3F, 0x40, 0x38, 0x40, 0x3F,
0x63, 0x14, 0x08, 0x14, 0x63,
0x03, 0x04, 0x78, 0x04, 0x03,
0x61, 0x59, 0x49, 0x4D, 0x43,
0x00, 0x7F, 0x41, 0x41, 0x41,
0x02, 0x04, 0x08, 0x10, 0x20,
0x00, 0x41, 0x41, 0x41, 0x7F,
0x04, 0x02, 0x01, 0x02, 0x04,
0x40, 0x40, 0x40, 0x40, 0x40,
0x00, 0x03, 0x07, 0x08, 0x00,
0x20, 0x54, 0x54, 0x78, 0x40,
0x7F, 0x28, 0x44, 0x44, 0x38,
0x38, 0x44, 0x44, 0x44, 0x28,
0x38, 0x44, 0x44, 0x28, 0x7F,
0x38, 0x54, 0x54, 0x54, 0x18,
0x00, 0x08, 0x7E, 0x09, 0x02,
0x18, 0xA4, 0xA4, 0x9C, 0x78,
0x7F, 0x08, 0x04, 0x04, 0x78,
0x00, 0x44, 0x7D, 0x40, 0x00,
0x20, 0x40, 0x40, 0x3D, 0x00,
0x7F, 0x10, 0x28, 0x44, 0x00,
0x00, 0x41, 0x7F, 0x40, 0x00,
0x7C, 0x04, 0x78, 0x04, 0x78,
0x7C, 0x08, 0x04, 0x04, 0x78,
0x38, 0x44, 0x44, 0x44, 0x38,
0xFC, 0x18, 0x24, 0x24, 0x18,
0x18, 0x24, 0x24, 0x18, 0xFC,
0x7C, 0x08, 0x04, 0x04, 0x08,
0x48, 0x54, 0x54, 0x54, 0x24,
0x04, 0x04, 0x3F, 0x44, 0x24,
0x3C, 0x40, 0x40, 0x20, 0x7C,
0x1C, 0x20, 0x40, 0x20, 0x1C,
0x3C, 0x40, 0x30, 0x40, 0x3C,
0x44, 0x28, 0x10, 0x28, 0x44,
0x4C, 0x90, 0x90, 0x90, 0x7C,
0x44, 0x64, 0x54, 0x4C, 0x44,
0x00, 0x08, 0x36, 0x41, 0x00,
0x00, 0x00, 0x77, 0x00, 0x00,
0x00, 0x41, 0x36, 0x08, 0x00,
0x02, 0x01, 0x02, 0x04, 0x02,
0x3C, 0x26, 0x23, 0x26, 0x3C,
0x1E, 0xA1, 0xA1, 0x61, 0x12,
0x3A, 0x40, 0x40, 0x20, 0x7A,
0x38, 0x54, 0x54, 0x55, 0x59,
0x21, 0x55, 0x55, 0x79, 0x41,
0x22, 0x54, 0x54, 0x78, 0x42, // a-umlaut
0x21, 0x55, 0x54, 0x78, 0x40,
0x20, 0x54, 0x55, 0x79, 0x40,
0x0C, 0x1E, 0x52, 0x72, 0x12,
0x39, 0x55, 0x55, 0x55, 0x59,
0x39, 0x54, 0x54, 0x54, 0x59,
0x39, 0x55, 0x54, 0x54, 0x58,
0x00, 0x00, 0x45, 0x7C, 0x41,
0x00, 0x02, 0x45, 0x7D, 0x42,
0x00, 0x01, 0x45, 0x7C, 0x40,
0x7D, 0x12, 0x11, 0x12, 0x7D, // A-umlaut
0xF0, 0x28, 0x25, 0x28, 0xF0,
0x7C, 0x54, 0x55, 0x45, 0x00,
0x20, 0x54, 0x54, 0x7C, 0x54,
0x7C, 0x0A, 0x09, 0x7F, 0x49,
0x32, 0x49, 0x49, 0x49, 0x32,
0x3A, 0x44, 0x44, 0x44, 0x3A, // o-umlaut
0x32, 0x4A, 0x48, 0x48, 0x30,
0x3A, 0x41, 0x41, 0x21, 0x7A,
0x3A, 0x42, 0x40, 0x20, 0x78,
0x00, 0x9D, 0xA0, 0xA0, 0x7D,
0x3D, 0x42, 0x42, 0x42, 0x3D, // O-umlaut
0x3D, 0x40, 0x40, 0x40, 0x3D,
0x3C, 0x24, 0xFF, 0x24, 0x24,
0x48, 0x7E, 0x49, 0x43, 0x66,
0x2B, 0x2F, 0xFC, 0x2F, 0x2B,
0xFF, 0x09, 0x29, 0xF6, 0x20,
0xC0, 0x88, 0x7E, 0x09, 0x03,
0x20, 0x54, 0x54, 0x79, 0x41,
0x00, 0x00, 0x44, 0x7D, 0x41,
0x30, 0x48, 0x48, 0x4A, 0x32,
0x38, 0x40, 0x40, 0x22, 0x7A,
0x00, 0x7A, 0x0A, 0x0A, 0x72,
0x7D, 0x0D, 0x19, 0x31, 0x7D,
0x26, 0x29, 0x29, 0x2F, 0x28,
0x26, 0x29, 0x29, 0x29, 0x26,
0x30, 0x48, 0x4D, 0x40, 0x20,
0x38, 0x08, 0x08, 0x08, 0x08,
0x08, 0x08, 0x08, 0x08, 0x38,
0x2F, 0x10, 0xC8, 0xAC, 0xBA,
0x2F, 0x10, 0x28, 0x34, 0xFA,
0x00, 0x00, 0x7B, 0x00, 0x00,
0x08, 0x14, 0x2A, 0x14, 0x22,
0x22, 0x14, 0x2A, 0x14, 0x08,
0x55, 0x00, 0x55, 0x00, 0x55, // #176 (25% block) missing in old code
0xAA, 0x55, 0xAA, 0x55, 0xAA, // 50% block
0xFF, 0x55, 0xFF, 0x55, 0xFF, // 75% block
0x00, 0x00, 0x00, 0xFF, 0x00,
0x10, 0x10, 0x10, 0xFF, 0x00,
0x14, 0x14, 0x14, 0xFF, 0x00,
0x10, 0x10, 0xFF, 0x00, 0xFF,
0x10, 0x10, 0xF0, 0x10, 0xF0,
0x14, 0x14, 0x14, 0xFC, 0x00,
0x14, 0x14, 0xF7, 0x00, 0xFF,
0x00, 0x00, 0xFF, 0x00, 0xFF,
0x14, 0x14, 0xF4, 0x04, 0xFC,
0x14, 0x14, 0x17, 0x10, 0x1F,
0x10, 0x10, 0x1F, 0x10, 0x1F,
0x14, 0x14, 0x14, 0x1F, 0x00,
0x10, 0x10, 0x10, 0xF0, 0x00,
0x00, 0x00, 0x00, 0x1F, 0x10,
0x10, 0x10, 0x10, 0x1F, 0x10,
0x10, 0x10, 0x10, 0xF0, 0x10,
0x00, 0x00, 0x00, 0xFF, 0x10,
0x10, 0x10, 0x10, 0x10, 0x10,
0x10, 0x10, 0x10, 0xFF, 0x10,
0x00, 0x00, 0x00, 0xFF, 0x14,
0x00, 0x00, 0xFF, 0x00, 0xFF,
0x00, 0x00, 0x1F, 0x10, 0x17,
0x00, 0x00, 0xFC, 0x04, 0xF4,
0x14, 0x14, 0x17, 0x10, 0x17,
0x14, 0x14, 0xF4, 0x04, 0xF4,
0x00, 0x00, 0xFF, 0x00, 0xF7,
0x14, 0x14, 0x14, 0x14, 0x14,
0x14, 0x14, 0xF7, 0x00, 0xF7,
0x14, 0x14, 0x14, 0x17, 0x14,
0x10, 0x10, 0x1F, 0x10, 0x1F,
0x14, 0x14, 0x14, 0xF4, 0x14,
0x10, 0x10, 0xF0, 0x10, 0xF0,
0x00, 0x00, 0x1F, 0x10, 0x1F,
0x00, 0x00, 0x00, 0x1F, 0x14,
0x00, 0x00, 0x00, 0xFC, 0x14,
0x00, 0x00, 0xF0, 0x10, 0xF0,
0x10, 0x10, 0xFF, 0x10, 0xFF,
0x14, 0x14, 0x14, 0xFF, 0x14,
0x10, 0x10, 0x10, 0x1F, 0x00,
0x00, 0x00, 0x00, 0xF0, 0x10,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xF0, 0xF0, 0xF0, 0xF0, 0xF0,
0xFF, 0xFF, 0xFF, 0x00, 0x00,
0x00, 0x00, 0x00, 0xFF, 0xFF,
0x0F, 0x0F, 0x0F, 0x0F, 0x0F,
0x38, 0x44, 0x44, 0x38, 0x44,
0xFC, 0x4A, 0x4A, 0x4A, 0x34, // sharp-s or beta
0x7E, 0x02, 0x02, 0x06, 0x06,
0x02, 0x7E, 0x02, 0x7E, 0x02,
0x63, 0x55, 0x49, 0x41, 0x63,
0x38, 0x44, 0x44, 0x3C, 0x04,
0x40, 0x7E, 0x20, 0x1E, 0x20,
0x06, 0x02, 0x7E, 0x02, 0x02,
0x99, 0xA5, 0xE7, 0xA5, 0x99,
0x1C, 0x2A, 0x49, 0x2A, 0x1C,
0x4C, 0x72, 0x01, 0x72, 0x4C,
0x30, 0x4A, 0x4D, 0x4D, 0x30,
0x30, 0x48, 0x78, 0x48, 0x30,
0xBC, 0x62, 0x5A, 0x46, 0x3D,
0x3E, 0x49, 0x49, 0x49, 0x00,
0x7E, 0x01, 0x01, 0x01, 0x7E,
0x2A, 0x2A, 0x2A, 0x2A, 0x2A,
0x44, 0x44, 0x5F, 0x44, 0x44,
0x40, 0x51, 0x4A, 0x44, 0x40,
0x40, 0x44, 0x4A, 0x51, 0x40,
0x00, 0x00, 0xFF, 0x01, 0x03,
0xE0, 0x80, 0xFF, 0x00, 0x00,
0x08, 0x08, 0x6B, 0x6B, 0x08,
0x36, 0x12, 0x36, 0x24, 0x36,
0x06, 0x0F, 0x09, 0x0F, 0x06,
0x00, 0x00, 0x18, 0x18, 0x00,
0x00, 0x00, 0x10, 0x10, 0x00,
0x30, 0x40, 0xFF, 0x01, 0x01,
0x00, 0x1F, 0x01, 0x01, 0x1E,
0x00, 0x19, 0x1D, 0x17, 0x12,
0x00, 0x3C, 0x3C, 0x3C, 0x3C,
0x00, 0x00, 0x00, 0x00, 0x00 // #255 NBSP
};
#endifILI9341.c
cpp
#include "ILI9341.h"
#include "main.h"
#include "stm32f4xx_hal.h"
#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
#ifndef abs
#define abs(a) ((a) < 0 ? -(a) : (a))
#endif
#ifndef _swap_int16_t
#define _swap_int16_t(a, b) { int16_t t = a; a = b; b = t; }
#endif
static SPI_HandleTypeDef *_hSpi;
static uint16_t _width = ILI9341_TFTWIDTH;
static uint32_t _height = ILI9341_TFTHEIGHT;
static uint16_t _rotation = 0;
static uint16_t _cursor_x = 0;
static uint16_t _cursor_y = 0;
static uint16_t _textsize = 1;
static uint16_t _textColor = 0xFFFF;
static uint16_t _textBgColor = 0xFFFF;
static bool _wrap = true;
static bool _cp437 = false;
static void spiWrite(uint8_t c);
static void writeCommand(uint8_t c);
static void writeData(uint8_t c);
static void setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1);
static void drawPixel(int16_t x, int16_t y, uint16_t color);
static void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color);
static void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color);
static void drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size);
/* private (static) functions */
#define LCD_DC_GPIO_Port GPIOA
#define LCD_CS_GPIO_Port GPIOA
#define LCD_DC_Pin GPIO_PIN_9
#define LCD_CS_Pin GPIO_PIN_8
void spiWrite(uint8_t c) {
HAL_SPI_Transmit(_hSpi, &c, 1, 10);
}
void writeCommand(uint8_t c) {
HAL_GPIO_WritePin(LCD_DC_GPIO_Port, LCD_DC_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_RESET);
spiWrite(c);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_SET);
}
void writeData(uint8_t c) {
HAL_GPIO_WritePin(LCD_DC_GPIO_Port, LCD_DC_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_RESET);
spiWrite(c);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_SET);
}
void setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
writeCommand(ILI9341_CASET); // Column addr set
writeData(x0 >> 8);
writeData(x0 & 0xFF); // XSTART
writeData(x1 >> 8);
writeData(x1 & 0xFF); // XEND
writeCommand(ILI9341_PASET); // Row addr set
writeData(y0>>8);
writeData(y0); // YSTART
writeData(y1>>8);
writeData(y1); // YEND
writeCommand(ILI9341_RAMWR); // write to RAM
}
void drawPixel(int16_t x, int16_t y, uint16_t color) {
if((x < 0) ||(x >= _width) || (y < 0) || (y >= _height)) return;
setAddrWindow(x,y,x+1,y+1);
HAL_GPIO_WritePin(LCD_DC_GPIO_Port, LCD_DC_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_RESET);
spiWrite(color >> 8);
spiWrite(color);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_SET);
}
void fillCircleHelper(int16_t x0, int16_t y0, int16_t r,
uint8_t cornername, int16_t delta, uint16_t color) {
int16_t f = 1 - r;
int16_t ddF_x = 1;
int16_t ddF_y = -2 * r;
int16_t x = 0;
int16_t y = r;
while (x<y) {
if (f >= 0) {
y--;
ddF_y += 2;
f += ddF_y;
}
x++;
ddF_x += 2;
f += ddF_x;
if (cornername & 0x1) {
ILI9341_drawFastVLine(x0+x, y0-y, 2*y+1+delta, color);
ILI9341_drawFastVLine(x0+y, y0-x, 2*x+1+delta, color);
}
if (cornername & 0x2) {
ILI9341_drawFastVLine(x0-x, y0-y, 2*y+1+delta, color);
ILI9341_drawFastVLine(x0-y, y0-x, 2*x+1+delta, color);
}
}
}
void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color) {
int16_t f = 1 - r;
int16_t ddF_x = 1;
int16_t ddF_y = -2 * r;
int16_t x = 0;
int16_t y = r;
while (x<y) {
if (f >= 0) {
y--;
ddF_y += 2;
f += ddF_y;
}
x++;
ddF_x += 2;
f += ddF_x;
if (cornername & 0x4) {
drawPixel(x0 + x, y0 + y, color);
drawPixel(x0 + y, y0 + x, color);
}
if (cornername & 0x2) {
drawPixel(x0 + x, y0 - y, color);
drawPixel(x0 + y, y0 - x, color);
}
if (cornername & 0x8) {
drawPixel(x0 - y, y0 + x, color);
drawPixel(x0 - x, y0 + y, color);
}
if (cornername & 0x1) {
drawPixel(x0 - y, y0 - x, color);
drawPixel(x0 - x, y0 - y, color);
}
}
}
void drawChar(int16_t x, int16_t y, unsigned char c,
uint16_t color, uint16_t bg, uint8_t size) {
if((x >= _width) || // Clip right
(y >= _height) || // Clip bottom
((x + 6 * size - 1) < 0) || // Clip left
((y + 8 * size - 1) < 0)) // Clip top
return;
if(!_cp437 && (c >= 176)) c++; // Handle 'classic' charset behavior
for(int8_t i=0; i<6; i++ ) {
uint8_t line;
if(i < 5) line = pgm_read_byte(font+(c*5)+i);
else line = 0x0;
for(int8_t j=0; j<8; j++, line >>= 1) {
if(line & 0x1) {
if(size == 1) drawPixel(x+i, y+j, color);
else ILI9341_fillRect(x+(i*size), y+(j*size), size, size, color);
} else if(bg != color) {
if(size == 1) drawPixel(x+i, y+j, bg);
else ILI9341_fillRect(x+i*size, y+j*size, size, size, bg);
}
}
}
}
/* end private (static) functions */
/* public functions */
void ILI9341_begin(SPI_HandleTypeDef *hSpi) {
_hSpi = hSpi;
writeCommand(0xEF);
writeData(0x03);
writeData(0x80);
writeData(0x02);
writeCommand(0xCF);
writeData(0x00);
writeData(0XC1);
writeData(0X30);
writeCommand(0xED);
writeData(0x64);
writeData(0x03);
writeData(0X12);
writeData(0X81);
writeCommand(0xE8);
writeData(0x85);
writeData(0x00);
writeData(0x78);
writeCommand(0xCB);
writeData(0x39);
writeData(0x2C);
writeData(0x00);
writeData(0x34);
writeData(0x02);
writeCommand(0xF7);
writeData(0x20);
writeCommand(0xEA);
writeData(0x00);
writeData(0x00);
writeCommand(ILI9341_PWCTR1); //Power control
writeData(0x23); //VRH[5:0]
writeCommand(ILI9341_PWCTR2); //Power control
writeData(0x10); //SAP[2:0];BT[3:0]
writeCommand(ILI9341_VMCTR1); //VCM control
writeData(0x3e); //¶Ô±È¶Èµ÷½Ú
writeData(0x28);
writeCommand(ILI9341_VMCTR2); //VCM control2
writeData(0x86); //--
writeCommand(ILI9341_MADCTL); // Memory Access Control
writeData(0x48);
writeCommand(ILI9341_PIXFMT);
writeData(0x55);
writeCommand(ILI9341_FRMCTR1);
writeData(0x00);
writeData(0x18);
writeCommand(ILI9341_DFUNCTR); // Display Function Control
writeData(0x08);
writeData(0x82);
writeData(0x27);
writeCommand(0xF2); // 3Gamma Function Disable
writeData(0x00);
writeCommand(ILI9341_GAMMASET); //Gamma curve selected
writeData(0x01);
writeCommand(ILI9341_GMCTRP1); //Set Gamma
writeData(0x0F);
writeData(0x31);
writeData(0x2B);
writeData(0x0C);
writeData(0x0E);
writeData(0x08);
writeData(0x4E);
writeData(0xF1);
writeData(0x37);
writeData(0x07);
writeData(0x10);
writeData(0x03);
writeData(0x0E);
writeData(0x09);
writeData(0x00);
writeCommand(ILI9341_GMCTRN1); //Set Gamma
writeData(0x00);
writeData(0x0E);
writeData(0x14);
writeData(0x03);
writeData(0x11);
writeData(0x07);
writeData(0x31);
writeData(0xC1);
writeData(0x48);
writeData(0x08);
writeData(0x0F);
writeData(0x0C);
writeData(0x31);
writeData(0x36);
writeData(0x0F);
writeCommand(ILI9341_SLPOUT); //Exit Sleep
writeCommand(ILI9341_DISPON); //Display on
}
void ILI9341_drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color) {
int16_t f = 1 - r;
int16_t ddF_x = 1;
int16_t ddF_y = -2 * r;
int16_t x = 0;
int16_t y = r;
drawPixel(x0 , y0+r, color);
drawPixel(x0 , y0-r, color);
drawPixel(x0+r, y0 , color);
drawPixel(x0-r, y0 , color);
while (x<y) {
if (f >= 0) {
y--;
ddF_y += 2;
f += ddF_y;
}
x++;
ddF_x += 2;
f += ddF_x;
drawPixel(x0 + x, y0 + y, color);
drawPixel(x0 - x, y0 + y, color);
drawPixel(x0 + x, y0 - y, color);
drawPixel(x0 - x, y0 - y, color);
drawPixel(x0 + y, y0 + x, color);
drawPixel(x0 - y, y0 + x, color);
drawPixel(x0 + y, y0 - x, color);
drawPixel(x0 - y, y0 - x, color);
}
}
void ILI9341_fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color) {
ILI9341_drawFastVLine(x0, y0-r, 2*r+1, color);
fillCircleHelper(x0, y0, r, 3, 0, color);
}
void ILI9341_drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color) {
int16_t steep = abs(y1 - y0) > abs(x1 - x0);
if (steep) {
_swap_int16_t(x0, y0);
_swap_int16_t(x1, y1);
}
if (x0 > x1) {
_swap_int16_t(x0, x1);
_swap_int16_t(y0, y1);
}
int16_t dx, dy;
dx = x1 - x0;
dy = abs(y1 - y0);
int16_t err = dx / 2;
int16_t ystep;
if (y0 < y1) {
ystep = 1;
} else {
ystep = -1;
}
for (; x0<=x1; x0++) {
if (steep) {
drawPixel(y0, x0, color);
} else {
drawPixel(x0, y0, color);
}
err -= dy;
if (err < 0) {
y0 += ystep;
err += dx;
}
}
}
void ILI9341_drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color) {
ILI9341_drawFastHLine(x, y, w, color);
ILI9341_drawFastHLine(x, y+h-1, w, color);
ILI9341_drawFastVLine(x, y, h, color);
ILI9341_drawFastVLine(x+w-1, y, h, color);
}
// fill a rectangle
void ILI9341_fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color) {
// rudimentary clipping (drawChar w/big text requires this)
if((x >= _width) || (y >= _height)) return;
if((x + w - 1) >= _width) w = _width - x;
if((y + h - 1) >= _height) h = _height - y;
setAddrWindow(x, y, x+w-1, y+h-1);
uint8_t hi = color >> 8, lo = color;
HAL_GPIO_WritePin(LCD_DC_GPIO_Port, LCD_DC_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_RESET);
for(y=h; y>0; y--) {
for(x=w; x>0; x--) {
spiWrite(hi);
spiWrite(lo);
}
}
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_SET);
}
void ILI9341_fillScreen(uint16_t color) {
ILI9341_fillRect(0, 0, _width, _height, color);
}
void ILI9341_invertDisplay(bool i) {
writeCommand(i ? ILI9341_INVON : ILI9341_INVOFF);
}
void ILI9341_drawRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, int16_t r, uint16_t color) {
// smarter version
ILI9341_drawFastHLine(x+r , y , w-2*r, color); // Top
ILI9341_drawFastHLine(x+r , y+h-1, w-2*r, color); // Bottom
ILI9341_drawFastVLine(x , y+r , h-2*r, color); // Left
ILI9341_drawFastVLine(x+w-1, y+r , h-2*r, color); // Right
// draw four corners
drawCircleHelper(x+r , y+r , r, 1, color);
drawCircleHelper(x+w-r-1, y+r , r, 2, color);
drawCircleHelper(x+w-r-1, y+h-r-1, r, 4, color);
drawCircleHelper(x+r , y+h-r-1, r, 8, color);
}
void ILI9341_fillRoundRect(int16_t x, int16_t y, int16_t w,
int16_t h, int16_t r, uint16_t color) {
// smarter version
ILI9341_fillRect(x+r, y, w-2*r, h, color);
// draw four corners
fillCircleHelper(x+w-r-1, y+r, r, 1, h-2*r-1, color);
fillCircleHelper(x+r , y+r, r, 2, h-2*r-1, color);
}
void ILI9341_drawTriangle(int16_t x0, int16_t y0,
int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color) {
ILI9341_drawLine(x0, y0, x1, y1, color);
ILI9341_drawLine(x1, y1, x2, y2, color);
ILI9341_drawLine(x2, y2, x0, y0, color);
}
void ILI9341_fillTriangle(int16_t x0, int16_t y0,
int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color) {
int16_t a, b, y, last;
// Sort coordinates by Y order (y2 >= y1 >= y0)
if (y0 > y1) {
_swap_int16_t(y0, y1); _swap_int16_t(x0, x1);
}
if (y1 > y2) {
_swap_int16_t(y2, y1); _swap_int16_t(x2, x1);
}
if (y0 > y1) {
_swap_int16_t(y0, y1); _swap_int16_t(x0, x1);
}
if(y0 == y2) { // Handle awkward all-on-same-line case as its own thing
a = b = x0;
if(x1 < a) a = x1;
else if(x1 > b) b = x1;
if(x2 < a) a = x2;
else if(x2 > b) b = x2;
ILI9341_drawFastHLine(a, y0, b-a+1, color);
return;
}
int16_t
dx01 = x1 - x0,
dy01 = y1 - y0,
dx02 = x2 - x0,
dy02 = y2 - y0,
dx12 = x2 - x1,
dy12 = y2 - y1;
int32_t
sa = 0,
sb = 0;
// For upper part of triangle, find scanline crossings for segments
// 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1
// is included here (and second loop will be skipped, avoiding a /0
// error there), otherwise scanline y1 is skipped here and handled
// in the second loop...which also avoids a /0 error here if y0=y1
// (flat-topped triangle).
if(y1 == y2) last = y1; // Include y1 scanline
else last = y1-1; // Skip it
for(y=y0; y<=last; y++) {
a = x0 + sa / dy01;
b = x0 + sb / dy02;
sa += dx01;
sb += dx02;
/* longhand:
a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
*/
if(a > b) _swap_int16_t(a,b);
ILI9341_drawFastHLine(a, y, b-a+1, color);
}
// For lower part of triangle, find scanline crossings for segments
// 0-2 and 1-2. This loop is skipped if y1=y2.
sa = dx12 * (y - y1);
sb = dx02 * (y - y0);
for(; y<=y2; y++) {
a = x1 + sa / dy12;
b = x0 + sb / dy02;
sa += dx12;
sb += dx02;
/* longhand:
a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
*/
if(a > b) _swap_int16_t(a,b);
ILI9341_drawFastHLine(a, y, b-a+1, color);
}
}
void ILI9341_setTextSize(uint8_t s) {
_textsize = (s > 0) ? s : 1;
}
void ILI9341_setTextColor(uint16_t c) {
// For 'transparent' background, we'll set the bg
// to the same as fg instead of using a flag
_textColor = c;
}
void ILI9341_setTextBgColor(uint16_t c) {
// For 'transparent' background, we'll set the bg
// to the same as fg instead of using a flag
_textBgColor = c;
}
void ILI9341_setTextWrap(bool w) {
_wrap = w;
}
void ILI9341_setCursor(int16_t x, int16_t y) {
_cursor_x = x;
_cursor_y = y;
}
uint16_t ILI9341_getCursorX(void) {
return _cursor_x;
}
uint16_t ILI9341_getCursorY(void) {
return _cursor_y;
}
void ILI9341_write(uint8_t c) {
if(c == '\n') {
_cursor_y += _textsize*8;
_cursor_x = 0;
} else if(c == '\r') {
// skip em
} else {
if(_wrap && ((_cursor_x + _textsize * 6) >= _width)) { // Heading off edge?
_cursor_x = 0; // Reset x to zero
_cursor_y += _textsize * 8; // Advance y one line
}
drawChar(_cursor_x, _cursor_y, c, _textColor, _textBgColor, _textsize);
_cursor_x += _textsize * 6;
}
}
// Pass string and a cursor position, returns UL corner and W,H.
void ILI9341_getTextBounds(char *str, int16_t x, int16_t y,
int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h) {
uint8_t c; // Current character
*x1 = x;
*y1 = y;
*w = *h = 0;
uint16_t lineWidth = 0, maxWidth = 0; // Width of current, all lines
while((c = *str++)) {
if(c != '\n') { // Not a newline
if(c != '\r') { // Not a carriage return, is normal char
if(_wrap && ((x + _textsize * 6) >= _width)) {
x = 0; // Reset x to 0
y += _textsize * 8; // Advance y by 1 line
if(lineWidth > maxWidth) maxWidth = lineWidth; // Save widest line
lineWidth = _textsize * 6; // First char on new line
} else { // No line _wrap, just keep incrementing X
lineWidth += _textsize * 6; // Includes interchar x gap
}
} // Carriage return = do nothing
} else { // Newline
x = 0; // Reset x to 0
y += _textsize * 8; // Advance y by 1 line
if(lineWidth > maxWidth) maxWidth = lineWidth; // Save widest line
lineWidth = 0; // Reset lineWidth for new line
}
}
// End of string
if(lineWidth) y += _textsize * 8; // Add height of last (or only) line
*w = maxWidth - 1; // Don't include last interchar x gap
*h = y - *y1;
}
// Enable (or disable) Code Page 437-compatible charset.
// There was an error in glcdfont.c for the longest time -- one character
// (#176, the 'light shade' block) was missing -- this threw off the index
// of every character that followed it. But a TON of code has been written
// with the erroneous character indices. By default, the library uses the
// original 'wrong' behavior and old sketches will still work. Pass 'true'
// to this function to use correct CP437 character values in your code.
void ILI9341_cp437(bool x) {
_cp437 = x;
}
uint16_t ILI9341_width(void) {
return _width;
}
uint16_t ILI9341_height(void) {
return _height;
}
void ILI9341_pushColor(uint16_t color) {
HAL_GPIO_WritePin(LCD_DC_GPIO_Port, LCD_DC_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_RESET);
spiWrite(color >> 8);
spiWrite(color);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_SET);
}
void ILI9341_drawFastVLine(int16_t x, int16_t y, int16_t h,
uint16_t color) {
// Rudimentary clipping
if((x >= _width) || (y >= _height)) return;
if((y+h-1) >= _height)
h = _height-y;
setAddrWindow(x, y, x, y+h-1);
uint8_t hi = color >> 8, lo = color;
HAL_GPIO_WritePin(LCD_DC_GPIO_Port, LCD_DC_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_RESET);
while (h--) {
spiWrite(hi);
spiWrite(lo);
}
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_SET);
}
void ILI9341_drawFastHLine(int16_t x, int16_t y, int16_t w,
uint16_t color) {
// Rudimentary clipping
if((x >= _width) || (y >= _height)) return;
if((x+w-1) >= _width) w = _width-x;
setAddrWindow(x, y, x+w-1, y);
uint8_t hi = color >> 8, lo = color;
HAL_GPIO_WritePin(LCD_DC_GPIO_Port, LCD_DC_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_RESET);
while (w--) {
spiWrite(hi);
spiWrite(lo);
}
HAL_GPIO_WritePin(LCD_CS_GPIO_Port, LCD_CS_Pin, GPIO_PIN_SET);
}
// Pass 8-bit (each) R,G,B, get back 16-bit packed color
uint16_t ILI9341_color565(uint8_t r, uint8_t g, uint8_t b) {
return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
}
#define MADCTL_MY 0x80
#define MADCTL_MX 0x40
#define MADCTL_MV 0x20
#define MADCTL_ML 0x10
#define MADCTL_RGB 0x00
#define MADCTL_BGR 0x08
#define MADCTL_MH 0x04
void ILI9341_setRotation(uint8_t m) {
writeCommand(ILI9341_MADCTL);
_rotation = m % 4; // can't be higher than 3
switch (_rotation) {
case 0:
writeData(MADCTL_MX | MADCTL_BGR);
_width = ILI9341_TFTWIDTH;
_height = ILI9341_TFTHEIGHT;
break;
case 1:
writeData(MADCTL_MV | MADCTL_BGR);
_width = ILI9341_TFTHEIGHT;
_height = ILI9341_TFTWIDTH;
break;
case 2:
writeData(MADCTL_MY | MADCTL_BGR);
_width = ILI9341_TFTWIDTH;
_height = ILI9341_TFTHEIGHT;
break;
case 3:
writeData(MADCTL_MX | MADCTL_MY | MADCTL_MV | MADCTL_BGR);
_width = ILI9341_TFTHEIGHT;
_height = ILI9341_TFTWIDTH;
break;
}
}
uint16_t ILI9341_getRotation(void) {
return _rotation;
}放到合适的位置并保存，添加包含头文件，.c文件到main文件同级文件下编译运行，在main函数初始化后添加
cpp
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_CRC_Init();
MX_SPI1_Init();
/* USER CODE BEGIN 2 */
ILI9341_begin(&hspi1);
ILI9341_fillScreen(ILI9341_BLACK);
ILI9341_fillCircle(160,120,50,ILI9341_GREEN);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}运行proteus8，建立原理图，添加hex文件并点击运行，效果及原理图如下：
