/*
Hello, I am using USIC2_CH1 as I2C. I am having problem to send out the stop bit in the data frame. By debugging I alway got the information that Tx FIFO is full.
Here are more details. I am using XMC4500 Hexagon Application Kit ( CPU_45A_V3, using ACT extension UNI_EXT01-V02). I am using Dave3. I have first tested the code using other usic channel; and the code worked fine.
Now I have to use another usic channel, which we will eventually use for our prototype board. But now I am being stopped where, I am writing the stop bit of the I2C frame. Here is the code:
*/
void I2C_Write(uint8_t addr, uint8_t reg, uint8_t *data, uint16_t len) {
I2C001_DataType data1,data2,data3,data4;
int16_t i;
while (RDY() == 1); // wait for RDY pin to go low
data1.Data1.TDF_Type = I2C_TDF_MStart;
data1.Data1.Data = (addr | I2C_WRITE); // address
while(!I2C001_WriteData(&TOUCH_I2C_HANDLE,&data1));
// Set register
data2.Data1.TDF_Type = I2C_TDF_MTxData;
data2.Data1.Data = reg; // register
while(!I2C001_WriteData(&TOUCH_I2C_HANDLE,&data2));
data3.Data1.TDF_Type = I2C_TDF_MTxData;
for (i=0;i data3.Data1.Data = data;
while(!I2C001_WriteData(&TOUCH_I2C_HANDLE,&data3));
}
// Stop condition by the master
data4.Data1.TDF_Type = I2C_TDF_MStop;
data4.Data1.Data = ubyteFF;
/* I am kept within this while loop and cannot get out of here, any help ....*/
while(!I2C001_WriteData(&TOUCH_I2C_HANDLE,&data4));
delay_ms(1);
taskENTER_CRITICAL();
while (RDY() == 0);
while (RDY() == 1);
taskEXIT_CRITICAL();
}
/*
can anybody help out of the while loop, where I am writing the stop bit of the I2C frame?
*/
