629 lines
13 KiB
C
629 lines
13 KiB
C
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#include "OLED_I2C.h"
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#include "font.h"
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sFONT *Fonttemp = &Font8x16;
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//sFONT *Fonttemp = &Font16x24;
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//sFONT *Fonttemp = &Font24x32;
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short I2C_OFFSET_W = I2C_PIC_W / 2 - I2C_OLED_W / 2;
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short I2C_OFFSET_H = I2C_PIC_H / 2 - I2C_OLED_H / 2; //显示器与画布偏移量
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uint8_t I2C_P_x = 0, I2C_P_y = 0; //OLED_Print函数中字符坐标
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uint8_t I2C_OLED_GRAM[I2C_PIC_H][I2C_PIC_W]; //画布256*128，显示区域(64,32)~(191,95)
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void I2C_init(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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I2C_InitTypeDef I2C_InitStruct;
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__RCC_I2C1_CLK_ENABLE();
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__RCC_GPIOB_CLK_ENABLE();
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PB06_AFx_I2C1SCL();
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PB07_AFx_I2C1SDA();
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GPIO_InitStructure.Pins = GPIO_PIN_6 | GPIO_PIN_7;
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GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_OD; ////I2C必须开漏输出
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GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
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GPIO_Init(CW_GPIOB, &GPIO_InitStructure);
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I2C_InitStruct.I2C_BaudEn = ENABLE;
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I2C_InitStruct.I2C_Baud = 0x04;
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I2C_InitStruct.I2C_FLT = DISABLE;
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I2C_InitStruct.I2C_AA = DISABLE; //DISABLE ENABLE
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I2C1_DeInit();
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I2C_Master_Init(CW_I2C1,&I2C_InitStruct);//初始化模块
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I2C_Cmd(CW_I2C1,ENABLE); //模块使能
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}
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void I2C_MasterWriteEepromData1(I2C_TypeDef *I2Cx,uint8_t u8Addr,uint8_t *pu8Data,uint32_t u32Len)
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{
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uint8_t u8i=0,u8State;
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I2C_GenerateSTART(I2Cx, ENABLE);
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while(1)
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{
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while(0 == I2C_GetIrq(I2Cx))
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{;}
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u8State = I2C_GetState(I2Cx);
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switch(u8State)
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{
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case 0x08: //发送完START信号
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I2C_GenerateSTART(I2Cx, DISABLE);
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I2C_Send7bitAddress(I2Cx, OLED_ADDRESS,0X00); //从设备地址发送
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break;
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case 0x18: //发送完SLA+W信号,ACK已收到
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I2C_SendData(I2Cx,u8Addr);//从设备内存地址发送
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break;
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case 0x28: //发送完1字节数据：发送EEPROM中memory地址也会产生，发送后面的数据也会产生
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I2C_SendData(I2Cx,pu8Data[u8i++]);
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break;
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case 0x20: //发送完SLA+W后从机返回NACK
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case 0x38: //主机在发送 SLA+W 阶段或者发送数据阶段丢失仲裁 或者 主机在发送 SLA+R 阶段或者回应 NACK 阶段丢失仲裁
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I2C_GenerateSTART(I2Cx, ENABLE);
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break;
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case 0x30: //发送完一个数据字节后从机返回NACK
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I2C_GenerateSTOP(I2Cx, ENABLE);
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break;
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default:
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break;
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}
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if(u8i>u32Len)
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{
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I2C_GenerateSTOP(I2Cx, ENABLE);//此顺序不能调换，出停止条件
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I2C_ClearIrq(I2Cx);
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break;
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}
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I2C_ClearIrq(I2Cx);
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}
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}
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void WriteCmd(unsigned char I2C_Command)//写命令
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{
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I2C_MasterWriteEepromData1(CW_I2C1,COM,&I2C_Command,1);
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}
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void WriteDat(unsigned char I2C_Data)//写数据
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{
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I2C_MasterWriteEepromData1(CW_I2C1,DAT,&I2C_Data,1);
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}
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//开启OLED显示
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void I2C_OLED_DisPlay_On(void)
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{
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WriteCmd(0x8D); //电荷泵使能
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WriteCmd(0x14); //开启电荷泵
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WriteCmd(0xAF); //点亮屏幕
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}
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//关闭OLED显示
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void I2C_OLED_DisPlay_Off(void)
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{
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WriteCmd(0x8D); //电荷泵使能
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WriteCmd(0x10); //关闭电荷泵
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WriteCmd(0xAF); //关闭屏幕
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}
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//更新显存到OLED
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void I2C_OLED_UPdata(void)
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{
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uint8_t i, n;
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//水平模式下设置
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WriteCmd(0x21); //设置列
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WriteCmd(0x00); //设置列起始地址
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WriteCmd(0x7f); //设置列结束地址
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WriteCmd(0x22); //设置页
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WriteCmd(0x00); //设置页起始地址
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WriteCmd(0x07); //设置页结束地址
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for (i = 0; i < I2C_OLED_H; i++)
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{
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for (n = 0; n < I2C_OLED_W; n++)
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{
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WriteDat(I2C_OLED_GRAM[i + I2C_OFFSET_H][n + I2C_OFFSET_W]);
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}
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}
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}
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/**
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* @brief 清除某条线的数据
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* @param Line:选择要清除的行，0、1、2、3、4、5、6、7
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* @param Start_x:x轴开始坐标
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* @param End_x: x轴结束坐标
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* @retval 无
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*/
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void I2C_OLED_Clear_Line(uint8_t Line,uint8_t Start_x,uint8_t End_x)
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{
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for(uint8_t x=Start_x;x<End_x;x++)
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I2C_OLED_GRAM[Line][x]=0;
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}
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//清屏函数
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//选择位置清屏
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//Inside,Outside,All
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void I2C_OLED_Clear(uint8_t OLEDShowUP)
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{
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uint16_t i, n;
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for (i = 0; i < I2C_PIC_H; i++)
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{
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for (n = 0; n < I2C_PIC_W; n++)
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{
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I2C_OLED_GRAM[i][n] = 0; //清除所有数据
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}
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}
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I2C_P_x = 0;
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I2C_P_y = 0; //清除OLED_Print函数中写入字符坐标
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I2C_OFFSET_W = I2C_PIC_W / 2 - I2C_OLED_W / 2;
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I2C_OFFSET_H = I2C_PIC_H / 2 - I2C_OLED_H / 2; //重置显示器与画布偏移量为画布中心
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if (OLEDShowUP == 1)
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I2C_OLED_UPdata(); //更新显示
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}
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//画点
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//x:0~127
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//y:0~63
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void I2C_OLED_DrawPoint(uint8_t x, uint8_t y)
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{
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uint8_t i, m, n;
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i = y / 8; //获得坐标所在页数
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m = y % 8; //获得偏移位数
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n = 1 << m;
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I2C_OLED_GRAM[i + I2C_OFFSET_H][x + I2C_OFFSET_W] |= n; //将数据传入图像帧
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}
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//清除一个点
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//x:0~127
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//y:0~63
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void I2C_OLED_ClearPoint(uint8_t x, uint8_t y)
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{
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uint8_t i, m, n;
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i = y / 8;
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m = y % 8;
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n = 1 << m;
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I2C_OLED_GRAM[i + I2C_OFFSET_H][x + I2C_OFFSET_W] = ~I2C_OLED_GRAM[i + I2C_OFFSET_H][x + I2C_OFFSET_W];
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I2C_OLED_GRAM[i + I2C_OFFSET_H][x + I2C_OFFSET_W] |= n;
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I2C_OLED_GRAM[i + I2C_OFFSET_H][x + I2C_OFFSET_W] = ~I2C_OLED_GRAM[i + I2C_OFFSET_H][x + I2C_OFFSET_W]; //清除点
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}
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//画线
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//x:0~128
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//y:0~64
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void I2C_OLED_DrawLine(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2)
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{
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int i = 0;
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float k, b;
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if (x1 == x2) //画竖线
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{
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for (i = 0; i < (y2 - y1); i++)
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{
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I2C_OLED_DrawPoint(x1, y1 + i);
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}
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}
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/*else if(y1==y2) //画横线
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{
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for(i=0;i<(x2-x1);i++)
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{
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OLED_DrawPoint(x1+i,y1);
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}
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}*/
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else //画斜线
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{
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k = (y2 - y1) * 10 / (x2 - x1); //斜率*10防止斜率小于1时失真
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b = y1 - k * x1 / 10;
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while ((x1 + i) != x2)
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{
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I2C_OLED_DrawPoint(x1 + i, (int)((x1 + i) * k / 10 + b));
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if (x1 < x2)
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{
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i++;
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}
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else
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{
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i--;
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}
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}
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}
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}
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//x,y:圆心坐标
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//r:圆的半径
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void I2C_OLED_DrawCircle(uint8_t x, uint8_t y, uint8_t r)
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{
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int a, b, num;
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a = 0;
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b = r;
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while (2 * b * b >= r * r)
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{
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I2C_OLED_DrawPoint(x + a, y - b);
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I2C_OLED_DrawPoint(x - a, y - b);
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I2C_OLED_DrawPoint(x - a, y + b);
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I2C_OLED_DrawPoint(x + a, y + b);
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I2C_OLED_DrawPoint(x + b, y + a);
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I2C_OLED_DrawPoint(x + b, y - a);
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I2C_OLED_DrawPoint(x - b, y - a);
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I2C_OLED_DrawPoint(x - b, y + a);
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a++;
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num = (a * a + b * b) - r * r; //计算画的点离圆心的距离
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if (num > 0)
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{
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b--;
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a--;
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}
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}
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}
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void I2C_OLED_ShowChar(uint8_t x, uint8_t y, char chr)
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{
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uint8_t i, m, temp, size = Fonttemp->Height * Fonttemp->Width / 8;
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uint8_t x0 = x;
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uint8_t Pfont[size];
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//获取字符编码
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GetConslonsCode(Pfont, chr, Fonttemp);
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// size=Fonttemp->Height*Fonttemp->Width/8; //得到字体一个字符对应点阵集所占的字节数
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for (i = 0; i < size; i++)
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{
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temp = Pfont[i];
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for (m = 0; m < 8; m++) //写入数据
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{
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if (temp & 0x80)
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I2C_OLED_DrawPoint(x, y);
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else
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I2C_OLED_ClearPoint(x, y);
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temp <<= 1;
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x++;
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}
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if ((x - x0) == (Fonttemp->Width))
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{
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x = x0;
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y++;
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}
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}
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}
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void I2C_OLED_ShowChar_CH(uint8_t x, uint8_t y, uint16_t usChar)
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{
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uint8_t rowCount, bitCount;
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uint8_t ucBuffer[WIDTH_CH_CHAR * HEIGHT_CH_CHAR / 8];
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uint16_t usTemp;
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uint8_t x0 = x;
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//取字模数据
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GetGBKCode(ucBuffer, usChar);
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for (rowCount = 0; rowCount < HEIGHT_CH_CHAR; rowCount++)
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{
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/* 取出两个字节的数据，在lcd上即是一个汉字的一行 */
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usTemp = ucBuffer[rowCount * 2]; //取高位
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usTemp = (usTemp << 8);
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usTemp |= ucBuffer[rowCount * 2 + 1]; //取低位
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for (bitCount = 0; bitCount < WIDTH_CH_CHAR; bitCount++)
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{
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if (usTemp & (0x8000 >> bitCount)) //高位在前
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I2C_OLED_DrawPoint(x, y);
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else
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I2C_OLED_ClearPoint(x, y);
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x++;
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}
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if (x - x0 == WIDTH_CH_CHAR)
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{
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x = x0;
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y++;
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}
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}
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}
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//dir 移动方向
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//pix 移动像素
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//cir 画布如果到达边界时，回到对面边界，到达循环效果,0表示不循环，1表示循环
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void I2C_OLED_Move(uint8_t dir, uint8_t pix, uint8_t cir) //屏幕显示区域移动
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{
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switch (dir)
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{
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case UP:
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{
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I2C_OFFSET_H += pix;
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if (I2C_OFFSET_H >= I2C_PIC_H - I2C_OLED_H)
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{
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if (cir == 0)
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I2C_OFFSET_H = I2C_PIC_H - I2C_OLED_H;
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else
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I2C_OFFSET_H = 0;
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}
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break;
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}
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case DOWN:
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{
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I2C_OFFSET_H -= pix;
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if (I2C_OFFSET_H <= 0)
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{
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if (cir == 0)
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I2C_OFFSET_H = 0;
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else
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I2C_OFFSET_H = I2C_PIC_H - I2C_OLED_H;
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}
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break;
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}
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case LEFT:
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{
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I2C_OFFSET_W += pix;
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if (I2C_OFFSET_W >= I2C_PIC_W - I2C_OLED_W)
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{
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if (cir == 0)
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I2C_OFFSET_W = I2C_PIC_W - I2C_OLED_W;
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else
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I2C_OFFSET_W = 0;
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}
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break;
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}
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case RIGHT:
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{
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I2C_OFFSET_W -= pix;
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if (I2C_OFFSET_W <= 0)
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{
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if (cir == 0)
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I2C_OFFSET_W = 0;
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else
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I2C_OFFSET_W = I2C_PIC_W - I2C_OLED_W;
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}
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break;
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}
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}
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I2C_OLED_UPdata();
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}
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/**
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* @brief 处理转义字符
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* @param usX ：当前坐标X
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* @param usY ：当前坐标Y
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* @param pStr ：要显示的英文字符
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* @note
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* @retval 处理字符串中的转义字符，并返回处理后的字符串地址
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*/
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char* OLED_StrEscCharacter(uint8_t *x,uint8_t *y,char *chr)
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{
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uint8_t TabSize;
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while(*chr < ' '&&*chr != '\0')
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{
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switch (*chr)
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{
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case '\b': //退格（BS）
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{
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*x = *x - Fonttemp->Width;
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break;
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}
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case '\n': //换行（LF）
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{
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switch(Fonttemp->Height)
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{
|
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case 32:I2C_OLED_Clear_Line((*y/8)+3,*x,128);//清除第3行
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case 24:I2C_OLED_Clear_Line((*y/8)+2,*x,128);//清除第2行
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case 16:I2C_OLED_Clear_Line((*y/8)+1,*x,128);//清除第1行
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case 8:I2C_OLED_Clear_Line((*y/8),*x,128);break;//清除第0行
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}
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*x = 0;
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*y = *y + Fonttemp->Height;
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if (*y > (I2C_OLED_H * 8) - Fonttemp->Height) //屏幕写满
|
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{
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I2C_OLED_Move(UP, 2, 0);
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*y = *y - Fonttemp->Height;
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}
|
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break;
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}
|
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case '\r': //回车（CR）
|
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{
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switch(Fonttemp->Height)
|
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{
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case 32:I2C_OLED_Clear_Line((*y/8)+3,*x,128);//清除第3行
|
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case 24:I2C_OLED_Clear_Line((*y/8)+2,*x,128);//清除第2行
|
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case 16:I2C_OLED_Clear_Line((*y/8)+1,*x,128);//清除第1行
|
||
case 8:I2C_OLED_Clear_Line((*y/8),*x,128);break;//清除第0行
|
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}
|
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*x = 0;
|
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*y = *y + Fonttemp->Height;
|
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if (*y > (I2C_OLED_H * 8) - Fonttemp->Height) //屏幕写满
|
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{
|
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I2C_OLED_Move(UP, 2, 0);
|
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*y = *y - Fonttemp->Height;
|
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}
|
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break;
|
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}
|
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case '\t': //水平制表（HT）
|
||
{
|
||
TabSize = 4 * Fonttemp->Width - (*x % (4 * Fonttemp->Width));
|
||
switch(Fonttemp->Height)
|
||
{
|
||
case 32:I2C_OLED_Clear_Line((*y/8)+3,*x,*x+TabSize);//清除第3行
|
||
case 24:I2C_OLED_Clear_Line((*y/8)+2,*x,*x+TabSize);//清除第2行
|
||
case 16:I2C_OLED_Clear_Line((*y/8)+1,*x,*x+TabSize);//清除第1行
|
||
case 8:I2C_OLED_Clear_Line((*y/8),*x,*x+TabSize);break;//清除第0行
|
||
}
|
||
*x = *x + TabSize;
|
||
break;
|
||
}
|
||
}
|
||
chr++;
|
||
}
|
||
return chr;
|
||
}
|
||
|
||
//显示字符串
|
||
//x,y:起点坐标
|
||
//size1:字体大小
|
||
//*chr:字符串起始地址
|
||
void I2C_OLED_ShowString(uint8_t x, uint8_t y, char *chr)
|
||
{
|
||
uint16_t chinese_chr;
|
||
while (*chr != '\0') //判断是不是非法字符!
|
||
{
|
||
chr=OLED_StrEscCharacter(&x,&y,chr);
|
||
if( * chr == '\0' )
|
||
break;
|
||
if (*chr < 127) //英文字符
|
||
{
|
||
I2C_OLED_ShowChar(x, y, *chr);
|
||
x += Fonttemp->Width;
|
||
if (x > 128 - Fonttemp->Width) //换行
|
||
{
|
||
x = 0;
|
||
y += Fonttemp->Height;
|
||
}
|
||
chr++;
|
||
}
|
||
else if (*chr > 127) //中文字符
|
||
{
|
||
chinese_chr = *(uint16_t *)chr;
|
||
chinese_chr = (chinese_chr << 8) + (chinese_chr >> 8); //得到中文字符
|
||
I2C_OLED_ShowChar_CH(x, y, chinese_chr);
|
||
x += WIDTH_CH_CHAR;
|
||
if (x > 128 - WIDTH_CH_CHAR) //换行
|
||
{
|
||
x = 0;
|
||
y += HEIGHT_CH_CHAR;
|
||
}
|
||
chr += 2;
|
||
}
|
||
}
|
||
}
|
||
|
||
//m^n
|
||
uint32_t I2C_OLED_Pow(uint8_t m, uint8_t n)
|
||
{
|
||
uint32_t result = 1;
|
||
while (n--)
|
||
{
|
||
result *= m;
|
||
}
|
||
return result;
|
||
}
|
||
|
||
//str指向要显示字符的指针
|
||
//size显示字符字号
|
||
void I2C_OLED_Print(char *str) //在OLED屏上打印字符串
|
||
{
|
||
uint16_t chinese_str;
|
||
|
||
while (*str != '\0')
|
||
{
|
||
str=OLED_StrEscCharacter(&I2C_P_x,&I2C_P_y,str);
|
||
if( * str == '\0' )
|
||
break;
|
||
if (*str < 127) //英文字符
|
||
{
|
||
I2C_OLED_ShowChar(I2C_P_x, I2C_P_y, *str);
|
||
I2C_P_x = I2C_P_x + Fonttemp->Width;
|
||
if (I2C_P_x > 128 - Fonttemp->Width) //换行
|
||
{
|
||
I2C_P_x = 0;
|
||
I2C_P_y = I2C_P_y + Fonttemp->Height;
|
||
if (I2C_P_y > 32 - Fonttemp->Height) //屏幕写满
|
||
{
|
||
I2C_OLED_Move(UP, 2, 0);
|
||
I2C_P_y = I2C_P_y - Fonttemp->Height;
|
||
}
|
||
}
|
||
str++;
|
||
}
|
||
else //中文字符
|
||
{
|
||
chinese_str = *(uint16_t *)str;
|
||
chinese_str = (chinese_str << 8) + (chinese_str >> 8); //得到中文字符
|
||
I2C_OLED_ShowChar_CH(I2C_P_x, I2C_P_y, chinese_str);
|
||
I2C_P_x += WIDTH_CH_CHAR;
|
||
|
||
if (I2C_P_x > 128 - WIDTH_CH_CHAR) //换行
|
||
{
|
||
I2C_P_x = 0;
|
||
I2C_P_y = I2C_P_y + HEIGHT_CH_CHAR;
|
||
if (I2C_P_y > 32 - HEIGHT_CH_CHAR) //屏幕写满
|
||
{
|
||
I2C_OLED_Move(UP, 2, 0);
|
||
I2C_P_y = I2C_P_y - HEIGHT_CH_CHAR;
|
||
}
|
||
}
|
||
str += 2; //一个汉字两个字节
|
||
}
|
||
}
|
||
I2C_OLED_UPdata();
|
||
}
|
||
|
||
|
||
void I2C_OLED_ShowPicture(uint8_t x, uint8_t y, uint8_t Bmp_W, uint8_t Bmp_H, uint8_t *BMP)
|
||
{
|
||
uint8_t x0, y0; //临时储存x，y的值
|
||
x0 = x;
|
||
y0 = y;
|
||
for (y = y0; y < y0 + Bmp_H; y++)
|
||
{
|
||
for (x = x0; x < x0 + Bmp_W; x++)
|
||
{
|
||
I2C_OLED_GRAM[y + I2C_OFFSET_H][x + I2C_OFFSET_W] = *BMP;
|
||
BMP++;
|
||
}
|
||
}
|
||
I2C_OLED_UPdata();
|
||
}
|
||
|
||
|
||
//OLED的初始化
|
||
void I2C_OLED_Init(void)
|
||
{
|
||
// delay1ms(200);
|
||
|
||
WriteCmd(0xAE);//关闭显示
|
||
|
||
WriteCmd(0x40);//---set low column address
|
||
WriteCmd(0xB0);//---set high column address
|
||
|
||
WriteCmd(0xC8);//-not offset
|
||
|
||
WriteCmd(0x81);//设置对比度
|
||
WriteCmd(0xff);
|
||
|
||
WriteCmd(0xa1);//段重定向设置
|
||
|
||
WriteCmd(0xa6);//
|
||
|
||
WriteCmd(0xa8);//设置驱动路数
|
||
WriteCmd(0x1f);
|
||
|
||
WriteCmd(0xd3);
|
||
WriteCmd(0x00);
|
||
|
||
WriteCmd(0xd5);
|
||
WriteCmd(0xf0);
|
||
|
||
WriteCmd(0xd9);
|
||
WriteCmd(0x22);
|
||
|
||
WriteCmd(0xda);
|
||
WriteCmd(0x02);
|
||
|
||
WriteCmd(0x20); //-Set Page Addressing Mode (0x00/0x01/0x02)
|
||
//WriteCmd(0x02);//页地址模式
|
||
WriteCmd(0x00); //水平寻址模式
|
||
|
||
WriteCmd(0xdb);
|
||
WriteCmd(0x49);
|
||
|
||
WriteCmd(0x8d);
|
||
WriteCmd(0x14);
|
||
|
||
WriteCmd(0xaf);
|
||
|
||
}
|