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Trenz Electronic FPGA Modules / TE0720 VBAT_IN voltage
« Last post by bigguiness on January 27, 2023, 11:23:06 PM »What is the VBAT_IN voltage supposed to be on the TE0720?
On my custom carrier board I connected a CR1220 coin cell (3V) to that pin. It appears to be working but I keep getting messages like this from the kernel:
Sometimes I don't see the message or just get one message. Other times I get a flood of the same message.
Measuring the voltage on the coin cell I get 3.144V.
Thanks
On my custom carrier board I connected a CR1220 coin cell (3V) to that pin. It appears to be working but I keep getting messages like this from the kernel:
Code: [Select]
rtc-isl12022 1-006f: voltage dropped below 85%, date and time is not reliable.
Sometimes I don't see the message or just get one message. Other times I get a flood of the same message.
Measuring the voltage on the coin cell I get 3.144V.
Thanks