This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Compiler/MSP430F6736A: Not waking up or restarting after sleep when power on.

Part Number: MSP430F6736A
Other Parts Discussed in Thread: TIDM-AUX-MODULE

Tool/software: TI C/C++ Compiler

The device is the TI energy meter with CPU MSP430f6736a on custom hardware. Implemented sleep function and it will wake up by pressing a button or when a UART interrupt occurs. The button press is detected inside RTC interrupt. Power sensing also is done in RTC interrupt. everything works fine and when power on, device restarting. But the problem is, if the sleep time is more than ~10 hours, the device is not restarting when power on. if I remove RTC battery and reinsert, its restarting. Why it's not restarting or waking up when power on, after sleep (if the sleep time is minutes its working fine). Please help. Thanks in advance.

  • Hello,

    Which low power mode (LPM) are you using? Which auxiliary power supply input is the battery for RTC connected? I'm assuming it's AUXVCC3. You've provided a high level description of the issue, but including more specific details would allow us to provide more detailed feedback. Posting associated code snippets (not all your code) and schematic snippets would be helpful for others to understand your system configuration.

    I would highly recommend reading through our Battery Management and Auxiliary Power Supply Options for E-Meters (TIDM-AUX-MODULE) reference design. There are many configurations and related code examples that should cover your configuration.



    MSP Customer Applications

**Attention** This is a public forum