MicroPython Forum (Archive)

After stepping away from this issue for a few hours, I had a few realizations (many of which turned out not to be quite right), but a key finding is that there was sufficient ringing on the input trigger to also trigger a second acquisition using read_timed on the falling edge. To be clear, I was us...

I am trying to synchronize an external trigger with the start of the read_timed function into a buffer. The issue that I'm having is that the start of the read_timed function appears to be delayed from the timing of the interrupt pin. My mechanism of testing this is to have the start of the input wa...

I too am having the same issue (i.e. OSError: 16). I've tried mouting via boot.py and repl and still get the same behavior. I've tried this on 1.13 and 1.12 and a PYBD SF3W. Any ideas are welcome. I am having a similar issue with a PYBD-SF2W where the SD card is present but will not mount. The boot ...

Report on the Pyboard-D SF3W running Micropython 1.13-173: With machine.freq(48000000) the code at http://www.robertocolistete.net/MicroPython/ADC_timedtimer_Pyboard.py yields sample rates that vary between 435 and 477 kSps. @ machine.freq(216000000) the script yeilds rates that hover just around 21...

Can anyone confirm whether settting the USB parameter to "high speed" addresses this issue? Alternatively, is there a way to use the EMMC module to log locally and tranfer later? https://store.micropython.org/product/WBUS-EMMC

I can second this concern. Using an older version of the uredis package on older wipy (v1.0) seemed to work fine with some of the board firmware. In trying this out again on the Wipy 2, there seems to be some sort of non-specific time-out error. Functionality similar to what redis provides seems qui...

With some nudging from folks here on the forums (thank you), I feel like I'm on the right track. The challenge that I'm now facing is how to stop or change the callback correctly. From what I read there is some disagreement for the pyb vs the wipy timer function. As it stands I put in a global "trig...

Ahh, yes that is a sound solution. I will surely give that a try. The one aspect I'm still not clear on is whether or not the timer callback is actually changed in the loop above. Is there anyway to confirm that the callback has been changed?

So I've been returning to this issue and am trying to figure the approach to stopping the callback in an elegant and defined fashion. I am trying to fill an array and essentially perform some signal averaging. To do this, my idea was to loop through the array a set number of times. The question is h...

After updating to the latest version of micropython on the wipy it was my hope to utilize the following function. Can anyone comment on how to access this pulse function? It doesn't appear to be in the latest build but it is in the documentation. machine.time_pulse_us(pin, pulse_level, timeout_us=10...