Arduino for STM32

@stas2z
simple sketch is working well
but i dont know why my sketch is not working serial1.flush
maybe it stuck in rotary encoder routin..

i will find failure and post the solution

thank you soo much

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i tried serial.flush is working
but serial1.flush not working
code stuck and i cant upload new code from ide until unplug connection (turn off the board power)

i did a project on arduino mega which they are communicate with other boards on rs485. i have one arduino mega which is connected to pc via ethernet. its getting some variables and delivering other modules via rs485. i used stm32f103 (bluepill) and getting messages well. but it cant send messages on...

so if two cores are same why serial.flush command stuck.
i didnt try any other cores.
and also tried delaymicrosecond but no way..

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I tried but not working and also code stucked on Serial1.flush();

Hi I am using rs485 protocol to communicate other modules on Arduino Mega. But STM32F103 (bluepill+bootloader), i cant send any serial1 message. i am getting messages well. This is my Arduino Mega working code: digitalWrite(enablePin, HIGH); //high signal to send data Serial1.println("message&q...