So here's an odd one... I have a custom board based on ESP32S3 which works pretty much normal. However...
when I input a PWM signal to a certain GPIO, PCNT and RMT do not detect _anything_. Nothing.
I have played with different ways to initialize and configure the peripherals, preconfigured GPIOs, anything, I can't get them to detect pulses.
Whereas polling the GPIO, reading via IRQ, and even MCPWM's counter are doing the right thing.
What could be the problem?
PCNT + RMT vs. GPIO + MCPWM
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DrMickeyLauer
- Posts: 209
- Joined: Sun May 22, 2022 2:42 pm
Re: PCNT + RMT vs. GPIO + MCPWM
Turns out the manufacturer incorrectly inserted 100KΩ resistors instead of 100Ω... it's a wonder that direct GPIO access and MCPWM did work at all.
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