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MSP430F2274 Timer issue when it is been interfaced with sensors in I2C

Ramakrishna Reddy Gouru
Prodigy 10 points
Other Parts Discussed in Thread: MSP430F2274

HI,

 

Our firmware team is working on MSP430F2274 and a sensor which would be connected in I2C. The simple rtc (Soft RTC developed on ACLK) code was running for three  for 3 days, there was no problem and the results were quite good. When its been integrated with Sensor ( I2C), suddenly the RTC value is going to be changed to some strange value (2011 Sep month instead of today's). Please let us know your valuable suggestions.

 

Regards

Ramakrishna R Gouru

  • 0
    Guru 227245 points

    There are as many possible reasons for that as there are programs that can be written (proper and inproper ones) on your MSP :)

    Some suggestions:

    • your I2C code is modifying the ACLK for its transfers, so the RTC runs on a changed speed
    • you have a stack overflow happening in the code after the activation of the I2C sensor
    • you have a buffer overflow/underflow (index out of range)
    • many more

    Als long as you don't post your code here, we all can only offer wild guesses

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