MicroPython Forum (Archive)

pythoncoder wrote: ↑

Thu Jun 17, 2021 3:39 pm

I suggest you report this on GitHub. If you prefer I will do so,

If it is not too much of a inconvenience for you, I would feel more comfortable if you would. Thanks. I am not even sure what Github you speak of.

A possibility is the fact that SPI.read() allocates Sharp observation. However, even without the SPI in the below even more minimal case, the issue seems to persist. from machine import Pin, PWM def READ_ADC(*_): cs.value(1) cs.value(0) if __name__ == "__main__": pin = Pin(16, Pin.OUT) pwm = PWM(pi...

To resolve this, in the ISR set a pin high, then low and put the scope on that pin. This is seen in the first picture of the original post. I am at the moment unable to supply a measurement of this with the minimal test case - will do tonight. In this picture it is seen in green how the SPI CS is h...

Hello all, thanks for your interest! Sorry for the late reply, I have been tied op lately. Today I have tried to use another pico board with MicroPython v.1.15 (2021-04-18) installed through Thonny, sadly with identical results. However neither of my boards seems to have a problem with PWM generatio...

Hello MicroPython forum. I recently picked up a pico development board and I am really enjoying the versatility of MicroPython. In my current project I am trying interface a RPi4 with a high performance ADC, in particular the ADS131M04. However, the non-maskable interrupts are reaking havoc with com...