STM32F103硬件IIC驱动显示OLED

oled.c

#include "oled.h"
#include "usart.h"
#include "oled_font.h"
#include "sys_tick.h"

static __IO uint32_t  I2CTimeout = I2CT_LONG_TIMEOUT; 

void I2C_GPIO_Config(void)
{
    GPIO_InitTypeDef  GPIO_InitStructure;
    
    RCC_APB2PeriphClockCmd(IIC_GPIO_CLK,ENABLE);
    
    //SCL
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
    GPIO_InitStructure.GPIO_Pin = IIC_SCL_GPIO_PIN;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(IIC_SCL_GPIO_PORT,&GPIO_InitStructure);
    //SDA
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
    GPIO_InitStructure.GPIO_Pin = IIC_SDA_GPIO_PIN;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(IIC_SDA_GPIO_PORT,&GPIO_InitStructure);
}

void I2C_Mode_Config(void)
{
    I2C_InitTypeDef  I2C_InitStructure;
    
    RCC_APB1PeriphClockCmd(IIC_CLK,ENABLE);
    /* I2C 配置 */
    I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
    
    /* 高电平数据稳定，低电平数据变化 SCL 时钟线的占空比 */
    I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
    I2C_InitStructure.I2C_OwnAddress1 = I2Cx_OWN_ADDRESS7;
    //
    I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
    //寻址模式
    I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
    //通信速率
    I2C_InitStructure.I2C_ClockSpeed = I2C_Speed;
    
    I2C_Init(I2C1,&I2C_InitStructure);
    
    I2C_Cmd(I2C1,ENABLE);
}

void I2CInit(void)
{
    I2C_GPIO_Config();
    I2C_Mode_Config();
}

/**
  * @brief  OLED 写入字节
  * @param  addr 地址（写指令/写数据）
  * @param  data 数据
  * @retval 无
  */
void I2cWriteByte(uint8_t addr,uint8_t data)
{
    //发送起始信号
    I2C_GenerateSTART(I2C1,ENABLE);
    
    I2CTimeout = I2CT_FLAG_TIMEOUT;
    
    //等待EV5事件
    while(!I2C_CheckEvent(I2C1,I2C_EVENT_MASTER_MODE_SELECT))
    {
        if((I2CTimeout--) == 0)
        {
            printf("I2C 等待超时!errorCode is 0\r\n");
            return;
        }
    }    
    I2CTimeout = I2CT_FLAG_TIMEOUT;
    
    //发送设备地址
    I2C_Send7bitAddress(I2C1,OLED_ADDR,I2C_Direction_Transmitter);
    //等待EV6事件
    while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED))
    {
        if((I2CTimeout--) == 0)
        {
            printf("I2C 等待超时!errorCode is 1\r\n");
            return;
        }
    }
    //发送地址
    I2C_SendData(I2C1,addr);
    I2CTimeout = I2CT_FLAG_TIMEOUT;
    while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED))
    {
        if((I2CTimeout--) == 0)
        {
            printf("I2C 等待超时!errorCode is 2\r\n");
            return;
        }
    }
    
    //发送数据
    I2C_SendData(I2C1,data);
    I2CTimeout = I2CT_FLAG_TIMEOUT;
    while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED))
    {
        if((I2CTimeout--) == 0)
        {
            printf("I2C 等待超时!errorCode is 3\r\n");
            return;
        }
    }
}
/**
  * @brief  OLED 指令
  * @param  command 写指令
  * @retval 无
  */
void OLED_WriteCommand(unsigned char command)
{
    I2cWriteByte(0x00,command);
}
/**
  * @brief  OLED 写数据
  * @param  data 数据
  * @retval 无
  */
void OLED_WriteData(unsigned char data)
{
    I2cWriteByte(0x40,data);
}
/**
  * @brief  OLED设置光标位置
  * @param  Y 以左上角为原点，向下方向的坐标，范围：0~7
  * @param  X 以左上角为原点，向右方向的坐标，范围：0~127
  * @retval 无
  */
void OLED_SetCursor(uint8_t Y, uint8_t X)
{