Other Parts Discussed in Thread: TIDM-AUX-MODULE, ,
Tool/software: Code Composer Studio
Dears
we face a serious problems in the MCU MSP430F64791A
1-When a fast transients is applied to the 220V terminals of the single phase meter, the MCU enters a latch-up state and VDSYS becomes 2.5v instead of 3.3v and the battery terminal AUXVCC1 consumes 4 mA although the DVCC is exactly 3.3V. This state does not release with HW reset (RST pin) and we must disconnect both the battery and the 220V to return true case.
2- When in normal mode we enable the watch dog , upon entering the low power mode 3 we disable the WD not to wake up the CPU but we noticed high battery consumption about 600uA How we can operate the WD and still reduce the consumption in low power mode 3
BR
Emad Hamdy