Good afternoon. After updating the arduino core, SERIAL and CAN stopped working.
platform = ststm32@13 — works
platform = ststm32@15 — doesn’t work.
Tried using
build_flags=
-D HAVE_HWSERIAL1
-D ENABLE_HWSERIAL1
-D PIO_FRAMEWORK_ARDUINO_ENABLE_CDC
-D PIO_FRAMEWORK_ARDUINO_NANOLIB_FLOAT_PRINTF.
doesn’t working. I ask for help
In… compiles but doesn’t work at runtime, or does not compile? What’s the code, full platformio.ini and complete error message?
Okay. I am using STM32F103RCT6 microcontroller. My code is very large, so I created a simple project where only UART is used. This code compiles without problems, but the UART output is empty. If you change the kernel version in platform.ini platform = ststm32@13 or lower. Then the UART pin works without problems.
main.cpp
#include <Arduino.h>
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
Serial.print(“test”);
}
void loop() {
// put your main code here, to run repeatedly:
Serial.print(“test”);
delay(1000);
}
platform.ini
[env:genericSTM32F103RC]
platform = ststm32
board = genericSTM32F103RC
framework = arduino
Where are you connecting the UART RX pin of your USB-Serial adapter to? It’s on PA2.
Also, you might want to use Serial.println() to add a linebreak, or Serial.flush() to force the output to be flushed.
Yes, I noticed that in the old kernel file these pins are indicated on UART1 PA10 PA9, and in the new PA3 PA2
I changed the value here to PA10 PA9 still does not work (
Use
build_flags=
-DSERIAL_UART_INSTANCE=1
-DPIN_SERIAL_TX=PA9
-DPIN_SERIAL_RX=PA10
instead and no source modifications. (Or switch tx and Rx pins, not sure right now)
Thanks, it worked. And do not tell me what to do with CAN. Also after updating the kernel does not send anything
…What’s the code you’re using for CAN?
Does it work when using the Arduino IDE and the https://github.com/stm32duino/Arduino_Core_STM32/ core version 2.2.0? If not, better open an issue at the library.