MicroPython Forum (Archive)

mpython wrote: ↑

Mon Jul 26, 2021 8:05 pm

Hello, I have a problem with connecting to H743ZI2 via USB after deploying the micropython firmware.

Which firmware (where did you get it from, what is the filename). How did you flash/deploy it? What board are you using (is it the NUCLEO-H743ZI). How are you connected to the REPL?

I just wrote a simple tool for downloading a file from the MicroPython (I am using a Raspi Pico) to the host, you can get it here: https://github.com/udi-hakim/Tools Worth checking out pyboard.py (https://docs.micropython.org/en/latest/reference/pyboard.py.html) and mpremote (https://pypi.org/proje...

something similar to this but on last micropython at ESP32: The suggestion from that SO post is on the right track but it's simpler than this because files themselves are streams, and can be dupterm'ed to. Here's a demo of using this at the REPL (using mpremote to later print the file) e.g. $ mpr C...

OSError: I2C operation not supported It looks like you've already solved this, but it looks like your original code was using start/stop/etc... See https://docs.micropython.org/en/latest/library/machine.I2C.html#primitive-i2c-operations which says "These methods are only available on the machine.So...

Yadnik wrote: ↑

Fri Jul 30, 2021 8:13 pm

It would be very helpful if someone can please tell me the mistake I am making.

This is being returned from Zephyr -- i.e. spi_transceive is returning EINVAL...

Do any SPI operations work? (e.g. read). Does it work if you use SoftSPI instead?

The scanning gives all kind of problems like ble.gap_scan() doesn't work Could you please inspect this code? Your code doesn't do anything with the scan IRQ. def _irq(self, event, data): if event == _IRQ_SCAN_RESULT: addr_type, addr, adv_type, rssi, adv_data = data return data The "return data" her...

When do I select one option over the other? As Dave said "Which one to use depends on the programmer being used." As a quick guide: - ESP32 / ESP8266 will typically always use a .bin file and esptool will indicate where to program it. - Many STM32 boards have USB DFU bootloaders, and the programmer...

Thanks Peter, this looks very useful!!

but I couldn't find pyb.standby or stop function in the firmware. The pyb module has been largely superceded by the machine module, and I think only some boards provide the aliases on the pyb module. In any case, you should be able to use machine.lightsleep() and machine.deepsleep() for stop and st...

That code you suggested also somehow didn't work. Sorry I haven't tested it, but if you add some print statements it should be possible to figure out what's going on. (Add a print in the interrupt handler to confim that it's setting `motion`, and then print in the different if/else cases to see whe...