MicroPython Forum

You should increase the size of the Rx buffer.
http://docs.micropython.org/en/latest/l ... .UART.init

pass in an rxbuf which is bigger than the largest message you expect to receive.

The schematic also looks weird. It shows TxD on the MCU as being an input when in fact TxD in the MCU is an output, and RxD is the input.

For the MCU RTS is an output and CTS is an input, so that part looks OK.

When your board resets all of the pins are configured as inputs. You can configure them as outputs using the first example here: http://docs.micropython.org/en/latest/pyboard/quickref.html#pins-and-gpio If you need to control the value of your pin before your code gets control then you’ll need to us...

I’m not familiar with the esp32 but normally there is a register bit which can be queries to see if the shift register is empty or not. It takes one character time for the shift register to empty and I know on the stm32 if I didn’t wait for this I would cut off the last character.

In addition to what you posted above, you should follow the build instructions on the stm32 README:
https://github.com/micropython/micropyt ... structions

I believe that the ESP32 UART has a HW FIFO and there would be a shift register and then most drivers also have a circular buffer. So the Tx isn’t done until the circular buffer is empty, and the FIFO is empty, and the shift register is empty.

I just wanted to make sure you’re checking all 3.

The JSON file format doesn't really lend itself to reading just one particular entry. You really want a file format (probably binary) where each entry takes up the same amount of space. Then if you want entry 15, you can calculate the offset within the file where entry 15 starts and read a single en...

From: https://github.com/micropython/micropython/wiki/Board-STM32F407-Discovery Plug in the discovery board. To use DFU, you need to connect CN5 (the micro-USB connector on the bottom of the board) into your PC. Unfortunately, the CN5 connector doesn't power the board, so you can either connect CN1 ...

If you have an SD card inserted, then you'll see that in Windows Explorer. If there is no SD card inserted then you'll see the internal flash. Being able to see the SD card will only work on devices that have native USB support (like the STM32) and when you're plugged into a direct USB port. If you'...

Binary 0x03 is the ASCII code for Control-C.

If you want to send that over USB-VCP and not trigger an interrupt then you need to call set_interrupt with a -1:
http://docs.micropython.org/en/latest/l ... tinterrupt