To close this topic out. I did some more testing using spare teensy 3.2s and regulators. They all worked fine for power up via battery. That lead me back to the regulator soldered in my circuit board. I replaced it and...
I want to do some low tech debugging (blink LEDs) to see how far teensy gets with my slow start power supply. Before I begin I need to know what modules are executed, and in what order, before setup is called. That way...
I finally got my cheap digital oscilloscope and did confirm that I have a slow power up. Attached is a picture showing the startup delay caused by the TPS6120 used in the Pololu 5V boost regulator. The graph voltage is...
Reply to Kurt:
Hopefully someone who is less electrically challenged than me, will be able to give a more definitive answer.
Note: when I first read the message, it was not clear to me, what battery...
But...
I've been having this problem on a sketch I'm working on but to remove all extraneous information I can recreate the problem with blink.
/*-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
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Thanks for the help. The hook now gets called when using USB to power but not when running via battery even though I see 4.67V at VIN. I have a scope coming next week to look at the power supply rise time. I'll open a...
I think I have a slow power supply problem with my Teensy 3.1 when running it via 2 AA batteries and a 5V up converter. I want to see how far into the startup code it gets before it hangs. I have a blue and a red led...
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