Specify `SERIAL_RX_BUFFER_SIZE` or similar define

[zfields]

SERIAL_RX_BUFFER_SIZE is a define from the legacy Arduino Cores.

• https://github.com/arduino/ArduinoCore-avr/blob/321fca0bac806bdd36af8afbc13587f4b67eb5f1/cores/arduino/HardwareSerial.h#L49
• https://github.com/arduino/ArduinoCore-megaavr/blob/5e639ee40afa693354d3d056ba7fb795a8948c11/cores/arduino/UART.h#L50

We use it to optimize large serial transfers, and it would be nice to see it specified in the Arduino_Core_STM32.

If you have a different / similar approach, that would also be very helpful.

[fpistm]

Hi @zfields

it is documented in the wiki: https://github.com/stm32duino/Arduino_Core_STM32/wiki/Custom-definitions#serial-rxtx-buffer-size

A simple search point to it.

[zfields]

I tried to search for SERIAL_RX_BUFFER_SIZE against the repo, and it didn't return as a result, which is why I raised the issue.

I guess I had a typo, because now it works. :shrug:

Sorry for the trouble.