Hello everybody,
I have a problem using the I2C-periphal on the RM48L952. I used HALCoGen to configure everything (I2C, HET, SPI, SCI, GIO etc.) and when I debug my board it works like expected.
When I unplug my debug-probe everything (HET, SPI, SCI, GIO etc.) expect I2C is still working.
this is the (minimal) code I'm using:
...
void main(void)
{
/* USER CODE BEGIN (3) */
int button=0;
gioInit();
hetInit();
sciInit();
spiInit();
i2cInit();
_enable_IRQ();
while(1)
{
...
if(gioGetBit(hetPORT1,11)) //Button pressed?
{
i2cSetSlaveAdd(i2cREG1, 0x48);
i2cSetDirection(i2cREG1, I2C_RECEIVER);
i2cSetCount(i2cREG1, 1);
i2cSetMode(i2cREG1, I2C_MASTER);
i2cSetStop(i2cREG1);
/* Transmit Start Condition */
i2cSetStart(i2cREG1);
button=i2cReceiveByte(i2cREG1);
/* Wait until Bus Busy is cleared */
while(i2cIsBusBusy(i2cREG1) == true);
/* Wait until Stop is detected */
while(i2cIsStopDetected(i2cREG1) == 0);
/* Clear the Stop condition */
i2cClearSCD(i2cREG1);
}
...
}
}
When I debug my project, I can (as expected) monitor the communication with a logic analyzer. In "non-debug-mode" there is nothing happening at the i2c pins at all.
What am I doing wrong?
best regards,
Andreas
