MicroPython Forum (Archive)

I'm no expert on the build system but MicroPython works fine on ESP8266 devices lacking USB such as the Adafruit Huzzah https://www.adafruit.com/product/2471 . Perhaps something can be gleaned from its makefile etc.? I am not familiar with esp port, but as I've mentioned above, the stm32 port is he...

Ok, disable USB entirely in micropython from STM32 is considered difficult task for now. I've try many time to look for ENABLE/DISABLE USB preprocessors, but it seems micropython is heavily dependent on it (latest release version 1.9.2). Some codes even make the PCD module/USB mandatory to compile. ...

This is the first time I've use mpy-cross
and I've got this error when import the module :

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: invalid syntax for number



any thoughts?

ok, the problem solved by adding spi.deinit() everytime I want to do spi.recv()

I've done : spi = pyb.SPI(2, pyb.SPI.MASTER, prescaler = 2, polarity = 0, phase = 0, bits = 8) buf=bytearray(3) buf[0]=0x01 buf[1]=0x02 buf[2]=0x03 spi.send(buf[0]) spi.send(buf[1]) spi.send(buf[2]) but why is that the result in logic analyzer is different from : spi = pyb.SPI(2, pyb.SPI.MASTER, pre...

dhylands wrote:X/Y/ZMODEM (or perhaps some minor variant which would allow even smaller packets) is one of the candidates that I've been looking at using for a more robust rshell transfer (not just for files, but for all of the information going back and forth).

any news on xmodem implementation on rshell?

Could you add feature for adjustable serial baudrate?

Is it possible to enabled multiple functionality on single pin by assigning definition on mpconfigboard.h, e.g like this (note that B10 and B11 can be used as uart OR i2c) : mpconfigboard.h #define MICROPY_HW_UART3_TX (pin_B10) #define MICROPY_HW_UART3_RX (pin_B11) #define MICROPY_HW_I2C2_SCL (pin_B...

@ajie_dirgantara Out of interest what MicroPython target board are you using? The board is our own custom board with STM32L451VE chip (hence I port from L476) with some modifications. It has 160KB contiguous RAM, and we didn't use USB at all, hence I am using rshell with native uart for comm. The p...

I've got issue with --buffer-size=32 on rshell. sometimes it just stop there and do nothing. Eventually after stop and board reset, it will re-format and lost all data in flash. The problem isn't occuring if I set --buffer-size=1. What could be a problem? is it on the usb to serial converter or on t...