STM32-IIC.zip_iic stm32_stm32 IIC_stm32 24c02_stm32 iic_stm32

#include "lcd.h" #include "stdlib.h" #include "font.h" #include "ziku.h" #include "usart.h" #include "delay.h" u16 POINT_COLOR = BLACK,BACK_COLOR = WHITE; //画笔颜色,背景颜色 u16 DeviceCode; //显示器型号 //===============================写寄存器函数=========================================== void LCD_WR_REG(u8 data) { LCD_RS_CLR;//写地址 LCD_CS_CLR; DATAOUT(data); LCD_WR_CLR; LCD_WR_SET; LCD_CS_SET; } //=================================写寄存器================================================ void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue) { LCD_WR_REG(LCD_Reg); LCD_WR_DATA(LCD_RegValue); } //=================================读寄存器============================================= u16 LCD_ReadReg(u8 LCD_Reg) { u16 t; LCD_WR_REG(LCD_Reg); //写入要读的寄存器号 GPIOB->CRL=0X88888888; //PB0-7 上拉输入 GPIOB->CRH=0X88888888; //PB8-15 上拉输入 GPIOB->ODR=0XFFFF; //全部输出高 LCD_RS_SET; LCD_CS_CLR; //读取数据(读寄存器时,并不需要读2次) LCD_RD_CLR; delay_us(5);//FOR 8989,延时5us LCD_RD_SET; t=DATAIN; LCD_CS_SET; GPIOB->CRL=0X33333333; //PB0-7 上拉输出 GPIOB->CRH=0X33333333; //PB8-15 上拉输出 GPIOB->ODR=0XFFFF; //全部输出高 return t; } //===============================开始写GRAM=========================================== void LCD_WriteRAM_Prepare(void) { LCD_WR_REG(R34); } //===============================LCD写GRAM============================================ void LCD_WriteRAM(u16 RGB_Code) { LCD_WR_DATA(RGB_Code);//写十六位GRAM } //==============================颜色格式转换========================================== u16 LCD_BGR2RGB(u16 c) { u16 r,g,b,rgb; b=(c>>0)&0x1f; g=(c>>5)&0x3f; r=(c>>11)&0x1f; rgb=(b<<11)+(g<<5)+(r<<0); return(rgb); } //==========================读取个某点的颜色值========================================= u16 LCD_ReadPoint(u16 x,u16 y) //返回值:此点的颜色 { u16 t; if(x>=LCD_W||y>=LCD_H)return 0;//超过了范围,直接返回 LCD_SetCursor(x,y); LCD_WR_REG(R34); //选择GRAM地址 GPIOB->CRL=0X88888888; //PB0-7 上拉输入 GPIOB->CRH=0X88888888; //PB8-15 上拉输入 GPIOB->ODR=0XFFFF; //全部输出高 LCD_RS_SET; LCD_CS_CLR; //读取数据(读GRAM时,需要读2次) LCD_RD_CLR; LCD_RD_SET; delay_us(2);//FOR 9320,延时2us //dummy READ LCD_RD_CLR; delay_us(2);//FOR 8989,延时2us LCD_RD_SET; t=DATAIN; LCD_CS_SET; GPIOB->CRL=0X33333333; //PB0-7 上拉输出 GPIOB->CRH=0X33333333; //PB8-15 上拉输出 GPIOB->ODR=0XFFFF; //全部输出高 if(DeviceCode==0X4535||DeviceCode==0X4531||DeviceCode==0X8989||DeviceCode==0XB505)return t;//这几种IC直接返回颜色值 else return LCD_BGR2RGB(t); } //==============================LCD开启显示=========================================== void LCD_DisplayOn(void) { LCD_WriteReg(R7, 0x0173); //26万色显示开启 } //==============================LCD关闭显示============================================ void LCD_DisplayOff(void) { LCD_WriteReg(R7, 0x0);//关闭显示 } //=============================设置光标位置============================================== __inline void LCD_SetCursor(u16 Xpos, u16 Ypos) { if(DeviceCode==0X8989) { LCD_WriteReg(0X4E, Xpos); LCD_WriteReg(0X4F, Ypos); }else { LCD_WriteReg(R32, Xpos); LCD_WriteReg(R33, Ypos); } } //=================================画点================================================ void LCD_DrawPoint(u16 x,u16 y,u16 colour) { LCD_SetCursor(x,y);//设置光标位置 LCD_WR_REG(R34);//开始写入GRAM LCD_WR_DATA(colour); } //===============================初始化lcd============================================= void LCD_Init(void) { RCC->APB2ENR|=1<<3;//先使能外设PORTB时钟 RCC->APB2ENR|=1<<4;//先使能外设PORTC时钟 RCC->APB2ENR|=1<<0; //开启辅助时钟 JTAG_Set(SWD_ENABLE); //开启SWD //PORTC6~10复用推挽输出 GPIOC->CRH&=0XFFFFF000; GPIOC->CRH|=0X00000333; GPIOC->CRL&=0X00FFFFFF; GPIOC->CRL|=0X33000000; GPIOC->ODR|=0X07C0; //PORTB 推挽输出 GPIOB->CRH=0X33333333; GPIOB->CRL=0X33333333; GPIOB->ODR=0XFFFF; delay_ms(50); // delay 50 ms LCD_WriteReg(0x0000,0x0001); delay_ms(50); // delay 50 ms DeviceCode = LCD_ReadReg(0x0000); printf(" LCD ID:%x\n",DeviceCode); //打印LCD ID //型号：4535 LCD_WriteReg(0X15,0X0030); LCD_WriteReg(0X9A,0X0010); LCD_WriteReg(0X11,0X0020); LCD_WriteReg(0X10,0X3428); LCD_WriteReg(0X12,0X0002);//16 LCD_WriteReg(0X13,0X1038); delay_ms(40); LCD_WriteReg(0X12,0X0012);//16 delay_ms(40); LCD_WriteReg(0X10,0X3420); LCD_WriteReg(0X13,0X3038); delay_ms(70); LCD_WriteReg(0X30,0X0000); LCD_WriteReg(0X31,0X0402); LCD_WriteReg(0X32,0X0307); LCD_WriteReg(0X33,0X0304); LCD_WriteReg(0X34,0X0004); LCD_WriteReg(0X35,0X0401); LCD_WriteReg(0X36,0X0707); LCD_WriteReg(0X37,0X0305); LCD_WriteReg(0X38,0X0610); LCD_WriteReg(0X39,0X0610); LCD_WriteReg(0X01,0X0100); LCD_WriteReg(0X02,0X0300); LCD_WriteReg(0X03,0X1030);//改变方向的 LCD_WriteReg(0X08,0X0808); LCD_WriteReg(0X0A,0X0008); LCD_WriteReg(0X60,0X2700); LCD_WriteReg(0X61,0X0001); LCD_WriteReg(0X90,0X013E); LCD_WriteReg(0X92,0X0100); LCD_WriteReg(0X93,0X0100); LCD_WriteReg(0XA0,0X3000); LCD_WriteReg(0XA3,0X0010); LCD_WriteReg(0X07,0X0001); LCD_WriteReg(0X07,0X0021); LCD_WriteReg(0X07,0X0023); LCD_WriteReg(0X07,0X0033); LCD_WriteReg(0X07,0X0133); LCD_LED=1;//点亮背光 LCD_Clear(WHITE); } //================================清屏函数============================================== void LCD_Clear(u16 Color)//Color:要清屏的填充色 { u32 index=0; LCD_SetCursor(0x00,0x0000);//设置光标位置 LCD_WriteRAM_Prepare(); //开始写入GRAM for(index=0;index<76800;index++) { LCD_WR_DATA(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; u16 xlen=0; xlen=xend-xsta+1; for(i=ysta;i<=yend;i++) { LCD_SetCursor(xsta,i); //设置光标位置 LCD_WriteRAM_Prepare(); //开始写入GRAM for(j=0;j<xlen;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 colour) { 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,colour);//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, u16 x2, u16 y2,u16 colour) { LCD_DrawLine(x1,y1,x2,y1,colour); LCD_DrawLine(x1,y1,x1,y2,colour); LCD_DrawLine(x1,y2,x2,y2,colour); LCD_DrawLine(x2,y1,x2,y2,colour); } //========================在指定位置画一个指定大小的圆================================== void Dra