494 lines
15 KiB
C
494 lines
15 KiB
C
/**
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******************************************************************************
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* @文件名 : ili9341.c
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* @作 者 : 13552
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* @brief : None
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* @注意 : None
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* @日 期 : 2024/1/31
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******************************************************************************
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*/
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#include "ili9341.h"
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#include "lcdfont.h"
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_LCD xLCD;
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__inline void wrtieCmd(uint16_t usCmd) {
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*ILI9341_CMD_ADDR = usCmd;
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}
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__inline void writeData(uint16_t usData) {
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*ILI9341_DATA_ADDR = usData;
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}
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uint16_t readData(void) {
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return (*(__IO uint16_t *)0x60020000);
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}
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void LCD_DisplayDir(uint8_t scanDir) {
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uint16_t regval = 0;
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if (scanDir == 0 || scanDir == 3) // 竖屏
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{
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xLCD.dir = 0;
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xLCD.width = LCD_WIDTH;
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xLCD.height = LCD_HIGH;
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}
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if (scanDir == 5 || scanDir == 6) // 横屏
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{
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xLCD.dir = 1;
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xLCD.width = LCD_HIGH;
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xLCD.height = LCD_WIDTH;
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}
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if (scanDir == 0) regval |= (0 << 7) | (0 << 6) | (0 << 5); // 从左到右,从上到下
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if (scanDir == 3) regval |= (1 << 7) | (1 << 6) | (0 << 5); // 从右到左,从下到上
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if (scanDir == 5) regval |= (0 << 7) | (1 << 6) | (1 << 5); // 从上到下,从右到左
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if (scanDir == 6) regval |= (1 << 7) | (0 << 6) | (1 << 5); // 从下到上,从左到右
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wrtieCmd(0X36); // 读写方向，颜色模式
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writeData(regval | 0x08); //
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}
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void setCursor(uint16_t x, uint16_t y, uint16_t width, uint16_t height) {
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wrtieCmd(0X2A); // 发送指令：设置x坐标
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writeData(x >> 8);
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writeData(x & 0xFF);
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writeData((x + width - 1) >> 8);
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writeData((x + width - 1) & 0xFF);
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wrtieCmd(0X2B);
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writeData(y >> 8);
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writeData(y & 0xFF);
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writeData((y + height - 1) >> 8);
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writeData((y + height - 1) & 0xFF);
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// 发送写GRAM指令
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wrtieCmd(0X2C);
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}
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void LCD_Fill(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t color) {
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uint32_t num = width * height;
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setCursor(x, y, width, height);
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while (num--)
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writeData(color);
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}
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void ILI9341_Init(void) {
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HAL_GPIO_WritePin(LCD_BK_GPIO_Port, LCD_BK_Pin, GPIO_PIN_SET);
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//尝试9341 ID的读取
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wrtieCmd(0XD3); // 指令：读ID
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readData(); // 第1个参数：dummy
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readData(); // 第2个参数：IC版本号
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xLCD.id = readData(); // 第3个参数：IC名字(93)
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xLCD.id <<= 8;
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xLCD.id |= readData(); // 第4个参数：IC名字(41)
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//printf("显示屏 检测... %x\r\n",xLCD.id); // 打印LCD ID
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if (xLCD.id != 0X9341) // 9341初始化失败
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return; // 注意：如果FSMC配置不正确，有可能可显示，但刷新速度慢，且读取不到正确型号
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// Power control B (CFh)
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wrtieCmd(0xCF);
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writeData(0x00);
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writeData(0xC1); //-81
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writeData(0x30);
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// Power on sequence control (EDh)
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wrtieCmd(0xED);
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writeData(0x64);
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writeData(0x03);
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writeData(0x12);
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writeData(0x81);
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// Driver timing control A (E8h)
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wrtieCmd(0xE8); //
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writeData(0x85);
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writeData(0x10);
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writeData(0x7A); //-78
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// Power control A (CBh)
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wrtieCmd(0xCB);
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writeData(0x39);
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writeData(0x2C);
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writeData(0x00);
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writeData(0x34);
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writeData(0x02);
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// Pump ratio control (F7h)
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wrtieCmd(0xF7);
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writeData(0x20);
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// Driver timing control B
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wrtieCmd(0xEA);
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writeData(0x00);
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writeData(0x00);
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// Frame Rate Control (In Normal Mode/Full Colors) (B1h) */
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wrtieCmd(0xB1);
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writeData(0x00);
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writeData(0x1A); //-1B
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// Display Function Control (B6h) */
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wrtieCmd(0xB6);
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writeData(0x0A);
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writeData(0xA2);
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// Power Control 1 (C0h)
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wrtieCmd(0xC0);
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writeData(0x1B); //-35
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// Power Control 2 (C1h)
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wrtieCmd(0xC1);
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writeData(0x01); //-11
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// VCOM 控制 1 (C5h)
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wrtieCmd(0xC5);
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writeData(0x30); // 45
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writeData(0x30); // 45
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// VCOM 控制 2 (C7h)
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wrtieCmd(0xC7);
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writeData(0xB7); //-A2
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// 使能3 伽马控制 (F2h)
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wrtieCmd(0xF2);
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writeData(0x00);
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// 伽马设置 (26h)
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wrtieCmd(0x26);
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writeData(0x01);
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// 正极伽马校准 (E0H)
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wrtieCmd(0xE0);
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writeData(0x0F);
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writeData(0x2A); // 26
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writeData(0x28); // 24
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writeData(0x08); //0B
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writeData(0x0E);
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writeData(0x08); // 09
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writeData(0x54);
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writeData(0xA9); // A8
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writeData(0x43); // 46
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writeData(0x0A); // 0c
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writeData(0x0F); // 17
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writeData(0x00); // 00
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writeData(0x00); // 00
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writeData(0x00); // 00
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writeData(0x00);
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// 负极伽马校准 (E1h)
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wrtieCmd(0XE1);
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writeData(0x00);
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writeData(0x15); // 19
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writeData(0x17); // 1B
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writeData(0x07); // 04
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writeData(0x11); // 10
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writeData(0x06); // 07
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writeData(0x2B); // 2A
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writeData(0x56); // 47
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writeData(0x3C); // 39
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writeData(0x05); // 03
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writeData(0x10); // 06
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writeData(0x0F); // 06
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writeData(0x3F); // 30
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writeData(0x3F); // 38
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writeData(0x0F); //
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// 列地址设置
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wrtieCmd(0x2A);
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writeData(0x00);
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writeData(0x00);
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writeData(0x00);
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writeData(0xEF);
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// 页地址设置
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wrtieCmd(0x2B);
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writeData(0x00);
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writeData(0x00);
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writeData(0x01);
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writeData(0x3F);
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// 像素格式设置 (3Ah)
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wrtieCmd(0x3a); // 像素格式设置
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writeData(0x55); // 16位接口，16位数据
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// 退出睡眠模式 (11h)
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wrtieCmd(0x11); // 等待5ms待电路稳定，再执行其它指令
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HAL_Delay(10);
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// 打开显示(29h)
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wrtieCmd(0x29); // 不会改变帧存储器数据
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LCD_DisplayDir(LCD_DIR); // 设置显示方向
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LCD_BK_GPIO_Port->BSRR |= LCD_BK_Pin;
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LCD_Fill(0, 0, xLCD.width, xLCD.height, LCD_BGCOLOR);
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xLCD.FlagInit = 1;
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}
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/*****************************************************************
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* 函 数：LCD_DrawPoint
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* 功 能：画一个点
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* 参 数：x坐标，y坐标, 16位颜色值
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* 返回值：无
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*
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* 备 注： 魔女开发板团队编写 淘宝 https://demoboard.taobao.com
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* 分 享： 不断更新于Q群文件夹：262901124 最后修改_2020年09月01日
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******************************************************************/
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void LCD_DrawPoint(uint16_t x, uint16_t y, uint16_t color) {
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setCursor(x, y, 1, 1); //设置光标位置
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writeData(color);
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}
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/*****************************************************************
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* 函 数：LCD_Line
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* 功 能：画线段 (参考野火大神)
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* 参 数：xStart 起始x坐标
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* yStart 起始y坐标
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* xEnd 结束x坐标
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* yEnd 结束y坐标
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* color 颜色
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* 返回值：
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*
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* 备 注： 魔女开发板团队 淘宝 https://demoboard.taobao.com
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* 分 享： 不断更新于Q群文件夹：262901124 最后修改_2020年09月01日
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******************************************************************/
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void LCD_Line(uint16_t xStart, uint16_t yStart, uint16_t xEnd, uint16_t yEnd, uint16_t color) {
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uint16_t us;
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uint16_t usX_Current, usY_Current;
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int32_t lError_X = 0, lError_Y = 0, lDelta_X, lDelta_Y, lDistance;
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int32_t lIncrease_X, lIncrease_Y;
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lDelta_X = xEnd - xStart; //计算坐标增量
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lDelta_Y = yEnd - yStart;
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usX_Current = xStart;
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usY_Current = yStart;
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if (lDelta_X > 0)
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lIncrease_X = 1; //设置单步方向
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else if (lDelta_X == 0)
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lIncrease_X = 0;//垂直线
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else {
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lIncrease_X = -1;
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lDelta_X = -lDelta_X;
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}
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if (lDelta_Y > 0)
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lIncrease_Y = 1;
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else if (lDelta_Y == 0)
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lIncrease_Y = 0;//水平线
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else {
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lIncrease_Y = -1;
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lDelta_Y = -lDelta_Y;
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}
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if (lDelta_X > lDelta_Y)
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lDistance = lDelta_X; //选取基本增量坐标轴
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else
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lDistance = lDelta_Y;
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for (us = 0; us <= lDistance + 1; us++)//画线输出
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{
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LCD_DrawPoint(usX_Current, usY_Current, color);//画点
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lError_X += lDelta_X;
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lError_Y += lDelta_Y;
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if (lError_X > lDistance) {
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lError_X -= lDistance;
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usX_Current += lIncrease_X;
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}
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if (lError_Y > lDistance) {
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lError_Y -= lDistance;
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usY_Current += lIncrease_Y;
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}
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}
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}
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/*****************************************************************
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* 函 数：LCD_GetPointPixel
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* 功 能：获取某一个坐标点像素的颜色值数据
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* 参 数：x x坐标
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* y y坐标
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* 返回值：16位像素颜色值
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*
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* 备 注： 魔女开发板团队编写 淘宝 https://demoboard.taobao.com
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* 分 享： 不断更新于Q群文件夹：262901124 最后修改_2020年09月01日
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******************************************************************/
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uint16_t LCD_GetPoint(uint16_t x, uint16_t y) {
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uint16_t r = 0, g = 0, b = 0;
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setCursor(x, y, 1, 1);
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wrtieCmd(0x2E); // 读GRAN
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r = readData(); // 第1个返回的是无效值
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r = readData();
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b = readData();
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g = readData();
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return (((r >> 11) << 11) | ((g >> 10) << 5) | (b >> 11));
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}
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/*****************************************************************
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* 函 数：LCD_DisplayOn
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* 功 能：开启显示，亮屏
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* 参 数：
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*
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* 返回值：
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*
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* 备 注： 魔女开发板团队编写 淘宝 https://demoboard.taobao.com
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* 分 享： 不断更新于Q群文件夹：262901124 最后修改_2020年09月01日
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******************************************************************/
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void LCD_DisplayOn(void) {
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wrtieCmd(0X29); //开启显示
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LCD_BK_GPIO_Port->BSRR |= LCD_BK_Pin;
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}
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/*****************************************************************
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* 函 数：LCD_DisplayOff
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* 功 能：关闭显示, 熄屏
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* 参 数：
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*
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* 返回值：
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*
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* 备 注： 魔女开发板团队编写 淘宝 https://demoboard.taobao.com
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* 分 享： 不断更新于Q群文件夹：262901124 最后修改_2020年09月01日
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******************************************************************/
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void LCD_DisplayOff(void) {
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wrtieCmd(0X28); //关闭显示
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LCD_BK_GPIO_Port->BSRR |= (uint32_t)LCD_BK_Pin << 16;
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}
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/*****************************************************************
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* 函 数：LCD_Rectangle
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* 功 能：画一个矩形 (参考野火大神)
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* 参 数：x 起始x坐标
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* y 起始y坐标
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* width 矩形的像素宽度
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* height 矩形的像素高度
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* color 颜色
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* filled 是否实体填充
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* 返回值：
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*
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* 备 注： 魔女开发板团队编写 淘宝 https://demoboard.taobao.com
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* 分 享： 不断更新于Q群文件夹：262901124 最后修改_2020年09月01日
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******************************************************************/
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void LCD_Rectangle(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t color, uint8_t filled) {
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if (filled) {
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LCD_Fill(x, y, width, height, color);
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} else {
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LCD_Line(x, y, x + width - 1, y, color);
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LCD_Line(x, y + height - 1, x + width - 1, y + height - 1, color);
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LCD_Line(x, y, x, y + height - 1, color);
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LCD_Line(x + width - 1, y, x + width - 1, y + height - 1, color);
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}
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}
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/*****************************************************************
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* 函 数：LCD_Circle
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* 功 能：画一个圆形 (参考野火大神)
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* 参 数：x 起始x坐标
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* y 起始y坐标
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* radius 半径
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* color 颜色
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* filled 是否实体填充
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* 返回值：
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*
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* 备 注： 魔女开发板团队编写 淘宝 https://demoboard.taobao.com
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* 分 享： 不断更新于Q群文件夹：262901124 最后修改_2020年09月01日
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******************************************************************/
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void LCD_Circle(uint16_t x, uint16_t y, uint16_t radius, uint16_t color, uint8_t filled) {
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int16_t sCurrentX, sCurrentY;
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int16_t sError;
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sCurrentX = 0;
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sCurrentY = radius;
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sError = 3 - (radius << 1); //判断下个点位置的标志
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while (sCurrentX <= sCurrentY) {
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int16_t sCountY;
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if (filled)
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for (sCountY = sCurrentX; sCountY <= sCurrentY; sCountY++) {
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LCD_DrawPoint(x + sCurrentX, y + sCountY, color); //1，研究对象
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LCD_DrawPoint(x - sCurrentX, y + sCountY, color); //2
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LCD_DrawPoint(x - sCountY, y + sCurrentX, color); //3
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LCD_DrawPoint(x - sCountY, y - sCurrentX, color); //4
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LCD_DrawPoint(x - sCurrentX, y - sCountY, color); //5
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LCD_DrawPoint(x + sCurrentX, y - sCountY, color); //6
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LCD_DrawPoint(x + sCountY, y - sCurrentX, color); //7
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LCD_DrawPoint(x + sCountY, y + sCurrentX, color); //0
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}
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else {
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LCD_DrawPoint(x + sCurrentX, y + sCurrentY, color); //1，研究对象
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LCD_DrawPoint(x - sCurrentX, y + sCurrentY, color); //2
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LCD_DrawPoint(x - sCurrentY, y + sCurrentX, color); //3
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LCD_DrawPoint(x - sCurrentY, y - sCurrentX, color); //4
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LCD_DrawPoint(x - sCurrentX, y - sCurrentY, color); //5
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LCD_DrawPoint(x + sCurrentX, y - sCurrentY, color); //6
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LCD_DrawPoint(x + sCurrentY, y - sCurrentX, color); //7
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LCD_DrawPoint(x + sCurrentY, y + sCurrentX, color); //0
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}
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sCurrentX++;
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if (sError < 0)
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sError += 4 * sCurrentX + 6;
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else {
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sError += 10 + 4 * (sCurrentX - sCurrentY);
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sCurrentY--;
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}
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}
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}
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void LCD_Draw_Hline(uint16_t x, uint16_t y, uint16_t len, uint16_t color) {
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if ((len == 0) || (x > xLCD.width) || (y > xLCD.height))return;
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LCD_Fill(x, y, x + len - 1, y, color);
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}
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void LCD_Fill_Circle(uint16_t x, uint16_t y, uint16_t r, uint16_t color) {
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uint32_t i;
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uint32_t imax = ((uint32_t)r * 707) / 1000 + 1;
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uint32_t sqmax = (uint32_t)r * (uint32_t)r + (uint32_t)r / 2;
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uint32_t xr = r;
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LCD_Draw_Hline(x - r, y, 2 * r, color);
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for (i = 0; i <= imax; i++) {
|
||
if ((i * i + xr * xr) > sqmax) {
|
||
if (xr > imax) {
|
||
LCD_Draw_Hline(x - i + 1, y + xr, 2 * (i - 1), color);
|
||
LCD_Draw_Hline(x - i + 1, y - xr, 2 * (i - 1), color);
|
||
}
|
||
xr--;
|
||
}
|
||
LCD_Draw_Hline(x - xr, y + i, 2 * xr, color);
|
||
LCD_Draw_Hline(x - xr, y - i, 2 * xr, color);
|
||
}
|
||
}
|
||
void LCD_Show_Char(uint16_t x, uint16_t y, char chr, uint8_t size, uint8_t mode, uint16_t color) {
|
||
uint8_t temp, t1, t;
|
||
uint16_t y0 = y;
|
||
uint8_t csize = 0;
|
||
uint8_t *pfont = 0;
|
||
csize = (size / 8 + ((size % 8) ? 1 : 0)) * (size / 2);
|
||
chr = chr - ' ';
|
||
switch (size) {
|
||
case 12: pfont = (uint8_t *)asc2_1206[chr];
|
||
break;
|
||
case 16: pfont = (uint8_t *)asc2_1608[chr]; /* 调用1608字体 */
|
||
break;
|
||
case 24: pfont = (uint8_t *)asc2_2412[chr]; /* 调用2412字体 */
|
||
break;
|
||
case 32: pfont = (uint8_t *)asc2_3216[chr]; /* 调用3216字体 */
|
||
break;
|
||
default: return;
|
||
}
|
||
for (t = 0; t < csize; t++) {
|
||
temp = pfont[t];
|
||
for (t1 = 0; t1 < 8; t1++) /* 一个字节8个点 */
|
||
{
|
||
if (temp & 0x80) /* 有效点,需要显示 */
|
||
{
|
||
LCD_DrawPoint(x, y, color); /* 画点出来,要显示这个点 */
|
||
} else if (mode == 0) /* 无效点,不显示 */
|
||
{
|
||
LCD_DrawPoint(x, y, LCD_BGCOLOR); /* 画背景色,相当于这个点不显示(注意背景色由全局变量控制) */
|
||
}
|
||
temp <<= 1; /* 移位, 以便获取下一个位的状态 */
|
||
y++;
|
||
if (y >= xLCD.height)return; /* 超区域了 */
|
||
if ((y - y0) == size) /* 显示完一列了? */
|
||
{
|
||
y = y0; /* y坐标复位 */
|
||
x++; /* x坐标递增 */
|
||
if (x >= xLCD.width)return; /* x坐标超区域了 */
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
void LCD_Show_String(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint8_t size, char *p, uint16_t color)
|
||
{
|
||
uint8_t x0 = x;
|
||
width += x;
|
||
height += y;
|
||
|
||
while ((*p <= '~') && (*p >= ' ')) /* 判断是不是非法字符! */
|
||
{
|
||
if (x >= width)
|
||
{
|
||
x = x0;
|
||
y += size;
|
||
}
|
||
|
||
if (y >= height)break; /* 退出 */
|
||
|
||
LCD_Show_Char(x, y, *p, size, 0, color);
|
||
x += size / 2;
|
||
p++;
|
||
}
|
||
} |