gd32f103c8 i2c 读写eeprom有问题

只看该作者 · 2015-12-4 15:04

gd32f103c8 i2c 读写eeprom有问题，程序一直在“while(!I2C_StateDetect(I2C1,I2C_PROGRAMMINGMODE_MASTER_TRANSMITTER_ADDSEND));” 上循环。一直解决不了，希望帮助一下。

只看该作者 · 2015-12-4 15:05

代码如下：
int main(void)
{
int i;
   //uint32_t sr2_1;
RCC_Configuration();
   RCC_APB1PeriphReset_Enable(RCC_APB1PERIPH_I2C1RST, ENABLE);
RCC_APB1PeriphReset_Enable(RCC_APB1PERIPH_I2C1RST, DISABLE);
GPIO_Configuration();
I2C_Configuration();

   /* Enable I2C1 */
I2C_Enable(I2C1,ENABLE);

I2C_Acknowledge_Enable(I2C1,ENABLE);

/* The software must wait until I2C Bus is idle */
while(I2C_GetBitState(I2C1,I2C_FLAG_I2CBSY));

/* Send a start condition to I2C bus */
I2C_StartOnBus_Enable(I2C1,ENABLE);

/* The software must wait until SBSEND bit is set */
while(!I2C_StateDetect(I2C1,I2C_PROGRAMMINGMODE_MASTER_SBSEND));

/* Send slave address to I2C bus */
I2C_AddressingDevice_7bit(I2C1,I2C_ADDR,I2C_DIRECTION_TRANSMITTER);

//for(;;)
//{
//I2C_SendData(I2C1,I2C1_Buf_Write[0]);
//}

/* The software must wait until ADDSEND bit is set */
while(!I2C_StateDetect(I2C1,I2C_PROGRAMMINGMODE_MASTER_TRANSMITTER_ADDSEND));

/* Wait until the transmit data buffer is empty */
while(!I2C_GetBitState(I2C1,I2C_FLAG_TBE));

for(i=0;i<5;i++)
{
   /* Data transmission */
   I2C_SendData(I2C1,I2C1_Buf_Write[i]);
   while(!I2C_StateDetect(I2C1, I2C_PROGRAMMINGMODE_MASTER_BYTE_TRANSMITTED));
}

/* Send a stop condition to I2C bus */
I2C_StopOnBus_Enable(I2C1,ENABLE);
while(I2C1->CTLR1&0x0200);

/*read*/
I2C_Enable(I2C1,ENABLE);

I2C_Acknowledge_Enable(I2C1,ENABLE);

while(I2C_GetBitState(I2C1, I2C_FLAG_I2CBSY));

I2C_StartOnBus_Enable(I2C1, ENABLE);

while(!I2C_StateDetect(I2C1, I2C_PROGRAMMINGMODE_MASTER_SBSEND));

I2C_AddressingDevice_7bit(I2C1,I2C_ADDR,I2C_DIRECTION_TRANSMITTER);

while(!I2C_StateDetect(I2C1, I2C_PROGRAMMINGMODE_MASTER_RECEIVER_ADDSEND));

I2C_StartOnBus_Enable(I2C1, ENABLE);

while(!I2C_StateDetect(I2C1, I2C_PROGRAMMINGMODE_MASTER_SBSEND));

for(i=0;i<2;i++)
{
   I2C_SendData(I2C1,addr[i]);
   while(!I2C_StateDetect(I2C1, I2C_PROGRAMMINGMODE_MASTER_BYTE_TRANSMITTED));
}

I2C_AddressingDevice_7bit(I2C1, I2C_ADDR, I2C_DIRECTION_RECEIVER);

while(!I2C_StateDetect(I2C1, I2C_PROGRAMMINGMODE_MASTER_RECEIVER_ADDSEND));

for(i=0;i<3;i++)
{
if(i==2)
{
/* Wait until the second last data byte is received into the shift register */
      while(!I2C_GetBitState(I2C1,I2C_FLAG_BTC));
      /* Send a NACK for the last data byte */
      I2C_Acknowledge_Enable(I2C1, DISABLE);
}
/* Wait until the RBNE bit is set */
   while(!I2C_StateDetect(I2C1, I2C_PROGRAMMINGMODE_MASTER_BYTE_RECEIVED));
   /* Read a data from I2C_DTR */
   I2C1_Buf_Read[i] = I2C_ReceiveData(I2C1);
}

I2C_StopOnBus_Enable(I2C1,ENABLE);
while(I2C1->CTLR1&0x0200);
I2C_Acknowledge_Enable(I2C1, ENABLE);

/* Infinite loop */
while(1);
}