FWIW - I do a lot of designs with the MSP430G series, I never put a cap on the reset line, and I've never had an issue with power-up or sporadic resets while running. If it is necessary, I'm not sure what for, and I've apparently never encountered any case where it mattered.
Unless your cap is faulty and has an internal short, I'd look elsewhere for the source of your problem.
Hi there,
I've only done 10 or so designs with it, and this is the second time this happened.
Thing is, it seems code-dependent. For example, I was working on a simple project to transmit data over an NRF2401, and everything was totally fine without a cap on reset.
That is, until I started making subtle changes to the code, mostly just reorganizing it. The device just stopped working. Took me a while to realize that there was no error in the code. I started probing the circuit, and when I touched the reset pin, it started working. In that case, adding the recommended value cap just solved it.
That brought me back to the project we are now discussing: I thought I just needed to add a bit of capacitance to resolve my issue, but no joy yet. I will look at the initialisation function and stop the watchdog timer early and see what that does in this case.
From the feedback here, there doesn't appear to be a point trying to read capacitance while the cap is in-circuit.
Thanks for taking time to provide feedback.