void Config_Init()
{
//初始化LED
LED_Init();
//初始化串口引脚
USART2_Init();
USART6_Init();
//初始化屏幕引脚
LCD_GPIOInit();
//配置uart
USART_Config();
}
//******************************************************************
//函数名： LCD_Init
//作者： xiao冯@全动电子
//日期： 2013-02-22
//功能： LCD初始化
//输入参数：无
//返回值： 无
//修改记录：无
//******************************************************************
void lcd_init(void)
{
#if USE_HARDWARE_SPI //使用硬件SPI
SPI1_Init();
#else
LCD_GPIOInit();//使用模拟SPI
#endif
LCD_RESET(); //液晶屏复位
//************* Start Initial Sequence **********//
//开始初始化液晶屏
LCD_WR_REG(0x11);//Sleep exit
delay_ms (120);
//ST7735R Frame Rate
LCD_WR_REG(0xB1);
LCD_WR_DATA(0x01);
LCD_WR_DATA(0x2C);
LCD_WR_DATA(0x2D);
LCD_WR_REG(0xB2);
LCD_WR_DATA(0x01);
LCD_WR_DATA(0x2C);
LCD_WR_DATA(0x2D);
LCD_WR_REG(0xB3);
LCD_WR_DATA(0x01);
LCD_WR_DATA(0x2C);
LCD_WR_DATA(0x2D);
LCD_WR_DATA(0x01);
LCD_WR_DATA(0x2C);
LCD_WR_DATA(0x2D);
LCD_WR_REG(0xB4); //Column inversion
LCD_WR_DATA(0x07);
//ST7735R Power Sequence
LCD_WR_REG(0xC0);
LCD_WR_DATA(0xA2);
LCD_WR_DATA(0x02);
LCD_WR_DATA(0x84);
LCD_WR_REG(0xC1);
LCD_WR_DATA(0xC5);
LCD_WR_REG(0xC2);
LCD_WR_DATA(0x0A);
LCD_WR_DATA(0x00);
LCD_WR_REG(0xC3);
LCD_WR_DATA(0x8A);
LCD_WR_DATA(0x2A);
LCD_WR_REG(0xC4);
LCD_WR_DATA(0x8A);
LCD_WR_DATA(0xEE);
LCD_WR_REG(0xC5); //VCOM
LCD_WR_DATA(0x0E);
LCD_WR_REG(0x36); //MX, MY, RGB mode
LCD_WR_DATA(0xC8);
//ST7735R Gamma Sequence
LCD_WR_REG(0xe0);
LCD_WR_DATA(0x0f);
LCD_WR_DATA(0x1a);
LCD_WR_DATA(0x0f);
LCD_WR_DATA(0x18);
LCD_WR_DATA(0x2f);
LCD_WR_DATA(0x28);
LCD_WR_DATA(0x20);
LCD_WR_DATA(0x22);
LCD_WR_DATA(0x1f);
LCD_WR_DATA(0x1b);
LCD_WR_DATA(0x23);
LCD_WR_DATA(0x37);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x07);
LCD_WR_DATA(0x02);
LCD_WR_DATA(0x10);
LCD_WR_REG(0xe1);
LCD_WR_DATA(0x0f);
LCD_WR_DATA(0x1b);
LCD_WR_DATA(0x0f);
LCD_WR_DATA(0x17);
LCD_WR_DATA(0x33);
LCD_WR_DATA(0x2c);
LCD_WR_DATA(0x29);
LCD_WR_DATA(0x2e);
LCD_WR_DATA(0x30);
LCD_WR_DATA(0x30);
LCD_WR_DATA(0x39);
LCD_WR_DATA(0x3f);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x07);
LCD_WR_DATA(0x03);
LCD_WR_DATA(0x10);
LCD_WR_REG(0x2a);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x7f);
LCD_WR_REG(0x2b);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x9f);
LCD_WR_REG(0xF0); //Enable test command
LCD_WR_DATA(0x01);
LCD_WR_REG(0xF6); //Disable ram power save mode
LCD_WR_DATA(0x00);
LCD_WR_REG(0x3A); //65k mode
LCD_WR_DATA(0x05);
LCD_WR_REG(0x29);//Display on
LCD_SetParam();//设置LCD参数
LCD_Clear(BLACK);
LCD_LED_CLR;//点亮背光
}
/*
******************************************************************************
*函数：void LCD_GPIOInit(void)
*输入：void
*输出：void
*描述：LCD初始化
******************************************************************************
*/
void LCD_Init(void)
{
LTDC_InitTypeDef LTDC_InitStruct;
LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
LTDC_Layer_TypeDef LTDC_Layerx;
/* IO口初始化 */
LCD_GPIOInit();
LCD_DisplayOff();
/* 使能LCD时钟 */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_LTDC, ENABLE);
/* 使能DMA失踪*/
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2D, ENABLE);
/* 水平同步信号---低电平有效 */
LTDC_InitStruct.LTDC_HSPolarity = LTDC_HSPolarity_AL;
/* 垂直同步信号---低电平有效 */
LTDC_InitStruct.LTDC_VSPolarity = LTDC_VSPolarity_AL;
/* 数据使能信号---低电平有效 */
LTDC_InitStruct.LTDC_DEPolarity = LTDC_DEPolarity_AL;
/* 像素时钟配置--- */
LTDC_InitStruct.LTDC_PCPolarity = LTDC_DEPolarity_AL;
/* LCD背光设置 */
LTDC_InitStruct.LTDC_BackgroundRedValue = 0;
LTDC_InitStruct.LTDC_BackgroundGreenValue = 0;
LTDC_InitStruct.LTDC_BackgroundBlueValue = 0;
/*
****************************************************************************
*PLLSAI_VCO = HSE*PLLSAI_N / PLL_M = 8 * 192 / 8 = 192MHz
*PLLLCDCLK = PLLSAI_VCO / PLLSAI_R = 192 / 3 = 64 Mhz
*LTDC clock frequency = PLLLCDCLK / RCC_PLLSAIDivR = 64 / 8 = 8 Mhz
****************************************************************************
*/
RCC_PLLSAIConfig(192, 7, 3);
RCC_LTDCCLKDivConfig(RCC_PLLSAIDivR_Div4);
/* 使能PLLSAI时钟 */
RCC_PLLSAICmd(ENABLE);
/* 等待PLLSAI时钟 */
while(RCC_GetFlagStatus(RCC_FLAG_PLLSAIRDY) == RESET){}
/* */
LTDC_InitStruct.LTDC_HorizontalSync = 40;
/* */
LTDC_InitStruct.LTDC_VerticalSync = 9;
/* */
LTDC_InitStruct.LTDC_AccumulatedHBP = 42;
/* */
LTDC_InitStruct.LTDC_AccumulatedVBP = 11;
/* */
LTDC_InitStruct.LTDC_AccumulatedActiveW = 522;
/* */
LTDC_InitStruct.LTDC_AccumulatedActiveH = 283;
/* */
LTDC_InitStruct.LTDC_TotalWidth = 524;
/* */
LTDC_InitStruct.LTDC_TotalHeigh = 285;
LTDC_Init(<DC_InitStruct);
LTDC_Layer_InitStruct.LTDC_HorizontalStart = 43;
LTDC_Layer_InitStruct.LTDC_HorizontalStop = (480 + 43 - 1);
LTDC_Layer_InitStruct.LTDC_VarticalStart = 12;
LTDC_Layer_InitStruct.LTDC_VerticalStop = (272 + 12 - 1);
/* Pixel Format configuration*/
LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_RGB565;
/* Alpha constant (255 totally opaque) */
LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
/* Default Color configuration (configure A,R,G,B component values) */
LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
/* Configure blending factors */
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
/* the length of one line of pixels in bytes + 3 then :
Line Lenth = Active high width x number of bytes per pixel + 3
Active high width = LCD_PIXEL_WIDTH
number of bytes per pixel = 2 (pixel_format : RGB565)
*/
LTDC_Layer_InitStruct.LTDC_CFBLineLength = ((480 * 2) + 3);
/* the pitch is the increment from the start of one line of pixels to the
start of the next line in bytes, then :
Pitch = Active high width x number of bytes per pixel
*/
LTDC_Layer_InitStruct.LTDC_CFBPitch = (480 * 2);
/* configure the number of lines */
LTDC_Layer_InitStruct.LTDC_CFBLineNumber = 272;
/* Input Address configuration */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER;
LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct);
/* Configure Layer2 */
LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_FRAME_BUFFER + BUFFER_OFFSET;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;
LTDC_LayerInit(LTDC_Layer2, <DC_Layer_InitStruct);
LTDC_ReloadConfig(LTDC_IMReload);
/* Enable foreground & background Layers */
LTDC_LayerCmd(LTDC_Layer1, ENABLE);
// LTDC_LayerCmd(LTDC_Layer2, ENABLE);
LTDC_ReloadConfig(LTDC_IMReload);
LCD_DisplayOn();
}
