MicroPython Forum (Archive)

Gee, just days later after posting the above, I encountered a case such as you described for the first time. A couple of years ago, I made a custom board definition for an STM32H750 board available locally here in South Korea. I got it working great in MP, and used it briefly for testing in another ...

Gee, I am super late to the thread, after starting it well over a year ago. Somehow I missed these replies. I thing the answer (for me) is twofold. For quick prototype projects, I would prefer the "shifting sands" approach and keep my local MP repository up-to-date. With just one computer, I think t...

One last remark on this. While still prototyping with my system, I had tacked on temporarily a MCP-120 supervisory reset chip. I had almost forgotten about it, and a couple of days ago my board started acting strange again. For some time I thought the SD card was bad, but finally I found that one wi...

After several years using MicroPython on various platforms, I'm not sure what the best practices are to organize various custom builds. The customization I've encountered boils down to three categories: COTS board with MP support, just tweak some #defines Same as (1) plus pre-compiled modules COTS ...

There was a thread from a few years ago ( https://forum.micropython.org/viewtopic.php?t=2737 ) noting that RSHELL wasn't working with OpenMV. Was that ever fixed? I've searched the OpenMV, RSHELL, and MicroPython sites/repos and come up empty-handed. I'm currently testing an OpenMV H7 R1 board. I'm ...

Found my problem. My +5V power supply turn-on was slower than the time constant of the reset RC circuit on the Pyboard. I've temporarily tacked on a larger capacitor (47 uF, way too big, just to test the solution). I will either add a more suitable capacitor on my carrier board, or put a MCP120.

I'm running a PyBoard v1.1, and have noticed an issue with power-on booting when an SD card is plugged in. Case 1: No SD card mounted Power on, boots to flash Reset button, boots to flash Case 2: SD card installed Power on, doesn't "boot", just green light and no REPL <=== PROBLEM Reset button, boot...

Well, I figured out a work-around, although it doesn't solve the basic problem that the Nic can't be re-initialized, de-initialized, or queried on soft reboots. Seeing all the resets going on in my previous reply, I decided to ditch the USB REPL and switch it to UART 6 on my PyBoard. Thankfully, I h...

Not quite solved yet, but I found out why I'm always getting soft reset as the cause. I have been using rshell and figured out that it does a bunch of reboots. Apparently, On machine reset, there is one hard reset followed by 10 or so soft resets On a single press of ctrl-D soft reset, I get about 5...

I think you mentioned it but didn’t update the diagram. For SPI communications you don’t cross the signals like you would for a UART. MISO goes to MISO, MOSI goes to MOSI.