SPI_LCD的DMA传输.rar_SPI+DMA_SPI屏幕 DMA_flash dma spi lcd_lcd和spi DM

#include "lcd.h" #include "spi.h" #include "gpio.h" #include "font.h" #include "delay.h" u8 LCD_dma[200]; u16 BACK_COLOR, POINT_COLOR; //背景色，画笔色 void delayms(u16 x) { u16 y; while(x--) { y = 1000; while(y--); } } void LCD_Writ_Bus(u8 da) //串行数据写入 { SPI2_ReadWriteByte(da); } void LCD_WR_DATA8(u8 da) //发送数据-8位参数 { LCD_DC=1; // LCD_Writ_Bus(da); LCD_dma[0] = da; LCD_dma_shu(DMA1_Channel5,1); while((DMA1->ISR&(1<<17))==0); DMA1->IFCR |= 1<<17; } void LCD_WR_DATA(u16 da) { LCD_DC=1; // LCD_Writ_Bus(da>>8); // LCD_Writ_Bus(da); LCD_dma[0] = da>>8; LCD_dma[1] = da; LCD_dma_shu(DMA1_Channel5,2); while((DMA1->ISR&(1<<17))==0); DMA1->IFCR |= 1<<17; } void LCD_WR_REG(u8 da) { LCD_DC=0; // LCD_Writ_Bus(da); LCD_dma[0] = da; LCD_dma_shu(DMA1_Channel5,1); while((DMA1->ISR&(1<<17))==0); DMA1->IFCR |= 1<<17; } void LCD_WR_REG_DATA(u16 reg,u16 da) { LCD_WR_REG(reg); LCD_WR_DATA(da); } void Address_set(u16 x1,u16 y1,u16 x2,u16 y2) { LCD_WR_REG(0x2a); LCD_WR_DATA(x1); LCD_WR_DATA(x2); LCD_WR_REG(0x2b); LCD_WR_DATA(y1); LCD_WR_DATA(y2); LCD_WR_REG(0x2C); } void Lcd_Init(void) { DMA1_Init(DMA1_Channel5,(u32)&SPI2->DR,(u32)LCD_dma,2); //调用一次这些函数，免得编译的时候提示警告 LCD_CS =1; LCD_REST=1; delay_ms(5); LCD_REST=0; delay_ms(10); LCD_REST=1; LCD_CS=1; delay_ms(50); LCD_CS =0; //打开片选使能 // LCD_WR_REG(0x11); //Sleep out // delayms(120); //Delay 120ms //------------------------------------ST7735S Frame Rate-----------------------------------------// LCD_WR_REG(0xCB); LCD_WR_DATA8(0x39); LCD_WR_DATA8(0x2C); LCD_WR_DATA8(0x00); LCD_WR_DATA8(0x34); LCD_WR_DATA8(0x02); LCD_WR_REG(0xCF); LCD_WR_DATA8(0x00); LCD_WR_DATA8(0xC1); LCD_WR_DATA8(0x30); LCD_WR_REG(0xE8); LCD_WR_DATA8(0x85); LCD_WR_DATA8(0x00); LCD_WR_DATA8(0x78); LCD_WR_REG(0xEA); LCD_WR_DATA8(0x00); LCD_WR_DATA8(0x00); LCD_WR_REG(0xED); LCD_WR_DATA8(0x64); LCD_WR_DATA8(0x03); LCD_WR_DATA8(0x12); LCD_WR_DATA8(0x81); LCD_WR_REG(0xF7); LCD_WR_DATA8(0x20); LCD_WR_REG(0xC0); LCD_WR_DATA8(0x23); LCD_WR_REG(0xC1); LCD_WR_DATA8(0x10); LCD_WR_REG(0xC5); LCD_WR_DATA8(0x3E); LCD_WR_DATA8(0x28); LCD_WR_REG(0xC7); LCD_WR_DATA8(0x86); LCD_WR_REG(0x36); #ifdef H_VIEW LCD_WR_DATA8(0xE8); //C8 //48 68??//28 E8 ?? #else LCD_WR_DATA8(0x48); #endif LCD_WR_REG(0x3A); LCD_WR_DATA8(0x55); LCD_WR_REG(0xB1); LCD_WR_DATA8(0x00); LCD_WR_DATA8(0x18); LCD_WR_REG(0xB6); LCD_WR_DATA8(0x08); LCD_WR_DATA8(0x82); LCD_WR_DATA8(0x27); LCD_WR_REG(0xF2); LCD_WR_DATA8(0x00); LCD_WR_REG(0x26); LCD_WR_DATA8(0x01); LCD_WR_REG(0xE0); LCD_WR_DATA8(0x0F); LCD_WR_DATA8(0x31); LCD_WR_DATA8(0x2B); LCD_WR_DATA8(0x0C); LCD_WR_DATA8(0x0E); LCD_WR_DATA8(0x08); LCD_WR_DATA8(0x4E); LCD_WR_DATA8(0xF1); LCD_WR_DATA8(0x37); LCD_WR_DATA8(0x07); LCD_WR_DATA8(0x10); LCD_WR_DATA8(0x03); LCD_WR_DATA8(0x0E); LCD_WR_DATA8(0x09); LCD_WR_DATA8(0x00); LCD_WR_REG(0xE1); LCD_WR_DATA8(0x00); LCD_WR_DATA8(0x0E); LCD_WR_DATA8(0x14); LCD_WR_DATA8(0x03); LCD_WR_DATA8(0x11); LCD_WR_DATA8(0x07); LCD_WR_DATA8(0x31); LCD_WR_DATA8(0xC1); LCD_WR_DATA8(0x48); LCD_WR_DATA8(0x08); LCD_WR_DATA8(0x0F); LCD_WR_DATA8(0x0C); LCD_WR_DATA8(0x31); LCD_WR_DATA8(0x36); LCD_WR_DATA8(0x0F); LCD_WR_REG(0x11); delay_ms(120); LCD_WR_REG(0x29); LCD_WR_REG(0x2C); /* LCD_WR_REG(0x11); //Sleep out delayms(120); //Delay 120ms LCD_WR_REG(0xB1); LCD_WR_DATA8(0x05); LCD_WR_DATA8(0x3C); LCD_WR_DATA8(0x3C); LCD_WR_REG(0xB2); LCD_WR_DATA8(0x05); LCD_WR_DATA8(0x3C); LCD_WR_DATA8(0x3C); LCD_WR_REG(0xB3); LCD_WR_DATA8(0x05); LCD_WR_DATA8(0x3C); LCD_WR_DATA8(0x3C); LCD_WR_DATA8(0x05); LCD_WR_DATA8(0x3C); LCD_WR_DATA8(0x3C); //------------------------------------End ST7735S Frame Rate-----------------------------------------// LCD_WR_REG(0xB4); //Dot inversion LCD_WR_DATA8(0x03); LCD_WR_REG(0xC0); LCD_WR_DATA8(0x28); LCD_WR_DATA8(0x08); LCD_WR_DATA8(0x04); LCD_WR_REG(0xC1); LCD_WR_DATA8(0XC0); LCD_WR_REG(0xC2); LCD_WR_DATA8(0x0D); LCD_WR_DATA8(0x00); LCD_WR_REG(0xC3); LCD_WR_DATA8(0x8D); LCD_WR_DATA8(0x2A); LCD_WR_REG(0xC4); LCD_WR_DATA8(0x8D); LCD_WR_DATA8(0xEE); //---------------------------------End ST7735S Power Sequence-------------------------------------// LCD_WR_REG(0xC5); //VCOM LCD_WR_DATA8(0x1A); LCD_WR_REG(0x36); //MX, MY, RGB mode LCD_WR_DATA8(0xC0); //------------------------------------ST7735S Gamma Sequence-----------------------------------------// LCD_WR_REG(0xE0); LCD_WR_DATA8(0x04); LCD_WR_DATA8(0x22); LCD_WR_DATA8(0x07); LCD_WR_DATA8(0x0A); LCD_WR_DATA8(0x2E); LCD_WR_DATA8(0x30); LCD_WR_DATA8(0x25); LCD_WR_DATA8(0x2A); LCD_WR_DATA8(0x28); LCD_WR_DATA8(0x26); LCD_WR_DATA8(0x2E); LCD_WR_DATA8(0x3A); LCD_WR_DATA8(0x00); LCD_WR_DATA8(0x01); LCD_WR_DATA8(0x03); LCD_WR_DATA8(0x13); LCD_WR_REG(0xE1); LCD_WR_DATA8(0x04); LCD_WR_DATA8(0x16); LCD_WR_DATA8(0x06); LCD_WR_DATA8(0x0D); LCD_WR_DATA8(0x2D); LCD_WR_DATA8(0x26); LCD_WR_DATA8(0x23); LCD_WR_DATA8(0x27); LCD_WR_DATA8(0x27); LCD_WR_DATA8(0x25); LCD_WR_DATA8(0x2D); LCD_WR_DATA8(0x3B); LCD_WR_DATA8(0x00); LCD_WR_DATA8(0x01); LCD_WR_DATA8(0x04); LCD_WR_DATA8(0x13); //------------------------------------End ST7735S Gamma Sequence-----------------------------------------// LCD_WR_REG(0x3A); //65k mode LCD_WR_DATA8(0x05); LCD_WR_REG(0x29); //Display on */ } //清屏函数 //Color:要清屏的填充色 void LCD_Clear(u16 x1,u16 y1,u16 x2,u16 y2,u16 Color) { u16 i,j; Address_set(x1,y1,x2-1,y2-1); for(i=0;i<x2;i++) { for (j=0;j<y2;j++) { LCD_WR_DATA(Color); } } } //在指定位置显示一个汉字(16*16大小) //dcolor为内容颜色，gbcolor为背静颜色 void showhanzi1(u16 x,u16 y,u8 index) { u8 i,j; u8 *temp; temp=(u8 *)hanzi1; Address_set(x,y,x+15,y+15); //设置区域 temp+=index*32; for(j=0;j<32;j++) { for(i=0;i<8;i++) { if((*temp&(1<<i))!=0) { LCD_WR_DATA(POINT_COLOR); } else { LCD_WR_DATA(BACK_COLOR); } } temp++; } } //画点 //POINT_COLOR:此点的颜色 void LCD_DrawPoint(u16 x,u16 y) { Address_set(x,y,x,y);//设置光标位置 LCD_WR_DATA(POINT_COLOR); } //画一个大点 //POINT_COLOR:此点的颜色 void LCD_DrawPoint_big(u16 x,u16 y) { LCD_Fill(x-1,y-1,x+1,y+1,POINT_COLOR); } //在指定区域内填充指定颜色 //区域大小: // (xend-xsta)*(yend-ysta) void LCD_Fill(u16 xsta,u16 ysta,u16 xend,u16 yend,u16 color) { u16 i,j; Address_set(xsta,ysta,xend,yend); //设置光标位置 for(i=ysta;i<=yend;i++) { for(j=xsta;j<=xend;j++)LCD_WR_DATA(color);//设置光标位置 } } //画线 //x1,y1:起点坐标 //x2,y2:终点坐标 void LCD_DrawLine(u16 x1, u16 y1, u16 x2, u16 y2) { u16 t; int xerr=0,yerr=0,delta_x,delta_y,distance; int incx,incy,uRow,uCol; delta_x=x2-x1; //计算坐标增量 delta_y=y2-y1; uRow=x1; uCol=y1; if(delta_x>0)incx=1; //设置单步方向 else if(delta_x==0)incx=0;//垂直线 else {incx=-1;delta_x=-delta_x;} if(delta_y>0)incy=1; else if(delta_y==0)incy=0;//水平线 else{incy=-1;delta_y=-delta_y;} if( delta_x>delta_y)distance=delta_x; //选取基本增量坐标轴 else distance=delta_y; for(t=0;t<=distance+1;t++ )//画线输出 { LCD_DrawPoint(uRow,uCol);//画点 xerr+=delta_x ; yerr+=delta_y ; if(xerr>distance) { xerr-=distance; uRow+=incx; } if(yerr>distance) { yerr-=distance; uCol+=incy; } } } //画矩形 void LCD_DrawRectangle(u16 x1, u16 y1,