Power supply detection xmc4300

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User18483
Level 1
Level 1
I have to monitor the power supply and when this falls, save the data on an external memory. I used a supercap to have enough energy and time to save data (around 1.5s) before uC dies.
I connected a pin (P2_8 mode input tristate) of uC to a divider on 5V but I can't detect the shutdown.
Am I missing something?
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User14451
Level 2
Level 2
10 replies posted 10 questions asked 5 replies posted
Hallo Ajeje,
have you resolved the issue?
If not, could you please post the photo or pdf of the circuit?
Do you use an interrupt routine?
I am doing something like that, using an ADC input with a fixed threshold. No need to use any supercap, using the EEPROM emulation in the flash memory.
Hope this helps.
Ciao
Fabio

PS: nice nickname 🙂
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