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
#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 0xF81Fvoid 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);#endif
glcdfont.h
#ifndef GLCDFONT_H
#define GLCDFONT_Hstatic 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-umlaut0x21, 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-umlaut0xF0, 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-umlaut0x32, 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-umlaut0x3D, 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 code0xAA, 0x55, 0xAA, 0x55, 0xAA, // 50% block0xFF, 0x55, 0xFF, 0x55, 0xFF, // 75% block0x00, 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 beta0x7E, 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
};#endif
ILI9341.c
#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; }
#endifstatic 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_8void 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 setwriteData(x0 >> 8);writeData(x0 & 0xFF); // XSTARTwriteData(x1 >> 8);writeData(x1 & 0xFF); // XENDwriteCommand(ILI9341_PASET); // Row addr setwriteData(y0>>8);writeData(y0); // YSTARTwriteData(y1>>8);writeData(y1); // YENDwriteCommand(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 topreturn;if(!_cp437 && (c >= 176)) c++; // Handle 'classic' charset behaviorfor(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 controlwriteData(0x23); //VRH[5:0]writeCommand(ILI9341_PWCTR2); //Power controlwriteData(0x10); //SAP[2:0];BT[3:0]writeCommand(ILI9341_VMCTR1); //VCM controlwriteData(0x3e); //¶Ô±È¶Èµ÷½ÚwriteData(0x28);writeCommand(ILI9341_VMCTR2); //VCM control2writeData(0x86); //--writeCommand(ILI9341_MADCTL); // Memory Access ControlwriteData(0x48);writeCommand(ILI9341_PIXFMT);writeData(0x55);writeCommand(ILI9341_FRMCTR1);writeData(0x00);writeData(0x18);writeCommand(ILI9341_DFUNCTR); // Display Function ControlwriteData(0x08);writeData(0x82);writeData(0x27);writeCommand(0xF2); // 3Gamma Function DisablewriteData(0x00);writeCommand(ILI9341_GAMMASET); //Gamma curve selectedwriteData(0x01);writeCommand(ILI9341_GMCTRP1); //Set GammawriteData(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 GammawriteData(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 SleepwriteCommand(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 versionILI9341_drawFastHLine(x+r , y , w-2*r, color); // TopILI9341_drawFastHLine(x+r , y+h-1, w-2*r, color); // BottomILI9341_drawFastVLine(x , y+r , h-2*r, color); // LeftILI9341_drawFastVLine(x+w-1, y+r , h-2*r, color); // Right// draw four cornersdrawCircleHelper(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 versionILI9341_fillRect(x+r, y, w-2*r, h, color);// draw four cornersfillCircleHelper(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 thinga = 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_tdx01 = x1 - x0,dy01 = y1 - y0,dx02 = x2 - x0,dy02 = y2 - y0,dx12 = x2 - x1,dy12 = y2 - y1;int32_tsa = 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 scanlineelse last = y1-1; // Skip itfor(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 lineswhile((c = *str++)) {if(c != '\n') { // Not a newlineif(c != '\r') { // Not a carriage return, is normal charif(_wrap && ((x + _textsize * 6) >= _width)) {x = 0; // Reset x to 0y += _textsize * 8; // Advance y by 1 lineif(lineWidth > maxWidth) maxWidth = lineWidth; // Save widest linelineWidth = _textsize * 6; // First char on new line} else { // No line _wrap, just keep incrementing XlineWidth += _textsize * 6; // Includes interchar x gap}} // Carriage return = do nothing} else { // Newlinex = 0; // Reset x to 0y += _textsize * 8; // Advance y by 1 lineif(lineWidth > maxWidth) maxWidth = lineWidth; // Save widest linelineWidth = 0; // Reset lineWidth for new line}}// End of stringif(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 clippingif((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 clippingif((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 0x04void ILI9341_setRotation(uint8_t m) {writeCommand(ILI9341_MADCTL);_rotation = m % 4; // can't be higher than 3switch (_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
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：
