282 lines
7.4 KiB
C
282 lines
7.4 KiB
C
#include "oled.h"
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#include "OLED_Font.h"
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/*引脚初始化*/
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void OLED_I2C_Init(void)
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{
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I2C_InitTypeDef I2C_InitStructure;
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GPIO_InitTypeDef GPIO_InitStructure;
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C2,ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
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GPIO_InitStructure.GPIO_Pin=GPIO_Pin_10|GPIO_Pin_11;
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GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_OD;
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GPIO_Init(GPIOB,&GPIO_InitStructure);
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I2C_DeInit(I2C2);
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I2C_InitStructure.I2C_Mode=I2C_Mode_I2C;
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I2C_InitStructure.I2C_DutyCycle=I2C_DutyCycle_2;
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I2C_InitStructure.I2C_OwnAddress1=0x30;
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I2C_InitStructure.I2C_Ack=I2C_Ack_Enable;
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I2C_InitStructure.I2C_AcknowledgedAddress=I2C_AcknowledgedAddress_7bit;
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I2C_InitStructure.I2C_ClockSpeed=400000;
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I2C_Cmd(I2C2,ENABLE);
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I2C_Init(I2C2,&I2C_InitStructure);
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}
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void OLED_I2C_WriteByte(uint8_t addr,uint8_t data)
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{
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while(I2C_GetFlagStatus(I2C2,I2C_FLAG_BUSY));
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I2C_GenerateSTART(I2C2,ENABLE);
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while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_MODE_SELECT));
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I2C_Send7bitAddress(I2C2,OLED_ADDRESS,I2C_Direction_Transmitter);
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while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
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I2C_SendData(I2C2,addr);
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while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_BYTE_TRANSMITTED));
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I2C_SendData(I2C2,data);
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while(!I2C_CheckEvent(I2C2,I2C_EVENT_MASTER_BYTE_TRANSMITTED));
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I2C_GenerateSTOP(I2C2,ENABLE);
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}
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/**
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* @brief OLED写命令
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* @param Command 要写入的命令
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* @retval 无
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*/
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void OLED_WriteCommand(uint8_t Command)
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{
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OLED_I2C_WriteByte(0x00,Command);
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}
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/**
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* @brief OLED写数据
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* @param Data 要写入的数据
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* @retval 无
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*/
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void OLED_WriteData(uint8_t Data)
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{
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OLED_I2C_WriteByte(0x40,Data);
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}
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/**
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* @brief OLED设置光标位置
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* @param Y 以左上角为原点，向下方向的坐标，范围：0~7
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* @param X 以左上角为原点，向右方向的坐标，范围：0~127
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* @retval 无
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*/
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void OLED_SetCursor(uint8_t Y,uint8_t X)
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{
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OLED_WriteCommand(0xB0|Y); //设置Y位置
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OLED_WriteCommand(0x10|((X&0xF0)>>4)); //设置X位置高4位
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OLED_WriteCommand(0x00|(X&0x0F)); //设置X位置低4位
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}
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/**
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* @brief OLED清屏
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* @param 无
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* @retval 无
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*/
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void OLED_Clear(void)
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{
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uint8_t i,j;
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for(j=0;j<8;j++)
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{
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OLED_SetCursor(j,0);
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for(i=0;i<128;i++)
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{
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OLED_WriteData(0x00);
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}
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}
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}
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/**
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* @brief OLED显示一个字符
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* @param Line 行位置，范围：1~4
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* @param Column 列位置，范围：1~16
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* @param Char 要显示的一个字符，范围：ASCII可见字符
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* @retval 无
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*/
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void OLED_ShowChar(uint8_t Line,uint8_t Column,char Char)
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{
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uint8_t i;
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OLED_SetCursor((Line-1)*2,(Column-1)*8); //设置光标位置在上半部分
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for(i=0;i<8;i++)
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{
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OLED_WriteData(OLED_F8x16[Char-' '][i]); //显示上半部分内容
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}
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OLED_SetCursor((Line-1)*2+1,(Column-1)*8); //设置光标位置在下半部分
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for(i=0;i<8;i++)
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{
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OLED_WriteData(OLED_F8x16[Char-' '][i+8]); //显示下半部分内容
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}
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}
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/**
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* @brief OLED显示字符串
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* @param Line 起始行位置，范围：1~4
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* @param Column 起始列位置，范围：1~16
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* @param String 要显示的字符串，范围：ASCII可见字符
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* @retval 无
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*/
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void OLED_ShowString(uint8_t Line, uint8_t Column, char *String)
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{
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uint8_t i;
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for(i=0;String[i]!='\0';i++)
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{
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OLED_ShowChar(Line,Column+i,String[i]);
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}
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}
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void OLED_ShowLineString(uint8_t Line, uint8_t Column, char *String)
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{
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uint8_t i;
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for(i=0;i<16;i++)
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{
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OLED_ShowChar(Line,Column+i,String[i]);
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}
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}
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/**
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* @brief OLED次方函数
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* @retval 返回值等于X的Y次方
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*/
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uint32_t OLED_Pow(uint32_t X,uint32_t Y)
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{
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uint32_t Result=1;
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while(Y--)
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{
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Result*=X;
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}
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return Result;
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}
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/**
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* @brief OLED显示数字（十进制，正数）
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* @param Line 起始行位置，范围：1~4
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* @param Column 起始列位置，范围：1~16
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* @param Number 要显示的数字，范围：0~4294967295
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* @param Length 要显示数字的长度，范围：1~10
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* @retval 无
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*/
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void OLED_ShowNum(uint8_t Line,uint8_t Column,uint32_t Number,uint8_t Length)
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{
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uint8_t i;
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for(i=0;i<Length;i++)
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{
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OLED_ShowChar(Line,Column+i,Number/OLED_Pow(10,Length-i-1)%10+'0');
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}
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}
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/**
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* @brief OLED显示数字（十进制，带符号数）
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* @param Line 起始行位置，范围：1~4
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* @param Column 起始列位置，范围：1~16
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* @param Number 要显示的数字，范围：-2147483648~2147483647
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* @param Length 要显示数字的长度，范围：1~10
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* @retval 无
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*/
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void OLED_ShowSignedNum(uint8_t Line,uint8_t Column,int32_t Number,uint8_t Length)
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{
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uint8_t i;
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uint32_t Number1;
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if(Number>=0)
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{
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OLED_ShowChar(Line,Column,'+');
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Number1=Number;
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}
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else
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{
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OLED_ShowChar(Line,Column,'-');
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Number1=-Number;
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}
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for(i=0;i<Length;i++)
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{
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OLED_ShowChar(Line,Column+i+1,Number1/OLED_Pow(10,Length-i-1)%10+'0');
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}
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}
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/**
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* @brief OLED显示数字（十六进制，正数）
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* @param Line 起始行位置，范围：1~4
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* @param Column 起始列位置，范围：1~16
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* @param Number 要显示的数字，范围：0~0xFFFFFFFF
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* @param Length 要显示数字的长度，范围：1~8
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* @retval 无
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*/
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void OLED_ShowHexNum(uint8_t Line,uint8_t Column,uint32_t Number,uint8_t Length)
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{
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uint8_t i,SingleNumber;
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for(i=0;i<Length;i++)
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{
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SingleNumber=Number/OLED_Pow(16,Length-i-1)%16;
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if(SingleNumber<10)
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{
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OLED_ShowChar(Line,Column+i,SingleNumber+'0');
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}
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else
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{
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OLED_ShowChar(Line,Column+i,SingleNumber-10+'A');
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}
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}
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}
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/**
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* @brief OLED显示数字（二进制，正数）
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* @param Line 起始行位置，范围：1~4
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* @param Column 起始列位置，范围：1~16
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* @param Number 要显示的数字，范围：0~1111 1111 1111 1111
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* @param Length 要显示数字的长度，范围：1~16
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* @retval 无
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*/
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void OLED_ShowBinNum(uint8_t Line,uint8_t Column,uint32_t Number,uint8_t Length)
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{
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uint8_t i;
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for(i=0;i<Length;i++)
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{
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OLED_ShowChar(Line,Column+i,Number/OLED_Pow(2,Length-i-1)%2+'0');
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}
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}
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/**
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* @brief OLED初始化
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* @param 无
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* @retval 无
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*/
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void OLED_Init(void)
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{
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delay_ms(100);
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OLED_I2C_Init(); //端口初始化
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OLED_WriteCommand(0xAE); //关闭显示
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OLED_WriteCommand(0xD5); //设置显示时钟分频比/振荡器频率
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OLED_WriteCommand(0x80);
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OLED_WriteCommand(0xA8); //设置多路复用率
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OLED_WriteCommand(0x3F);
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OLED_WriteCommand(0xD3); //设置显示偏移
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OLED_WriteCommand(0x00);
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OLED_WriteCommand(0x40); //设置显示开始行
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OLED_WriteCommand(0xA1); //设置左右方向，0xA1正常 0xA0左右反置
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OLED_WriteCommand(0xC8); //设置上下方向，0xC8正常 0xC0上下反置
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OLED_WriteCommand(0xDA); //设置COM引脚硬件配置
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OLED_WriteCommand(0x12);
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OLED_WriteCommand(0x81); //设置对比度控制
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OLED_WriteCommand(0xCF);
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OLED_WriteCommand(0xD9); //设置预充电周期
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OLED_WriteCommand(0xF1);
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OLED_WriteCommand(0xDB); //设置VCOMH取消选择级别
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OLED_WriteCommand(0x30);
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OLED_WriteCommand(0xA4); //设置整个显示打开/关闭
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OLED_WriteCommand(0xA6); //设置正常/倒转显示
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OLED_WriteCommand(0x8D); //设置充电泵
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OLED_WriteCommand(0x14);
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OLED_WriteCommand(0xAF); //开启显示
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OLED_Clear(); //OLED清屏
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}
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