HAL UART returns HAL busy

[arun2]

Posted on September 16, 2016 at 08:42

My STM32F411 controller always returns HAL busy while UART receive interrupt  occured, 

  is this relative to hardware?

 can any one give me a sugestion.

[Nesrine M_O]

Posted on September 16, 2016 at 14:10

Hi alagarsamy.arunkumar,

I suggest you to start from the Uart example under STM32cubeF4 package it may be helpful : 

STM32Cube_FW_F4_V1.13.0\Projects\STM32F411E-Discovery\Examples\UART   

-Syrine-

[arun2]

Posted on September 16, 2016 at 15:26

HI Syrine!

 thank  you for your suggestion . i will check that.

regards,

Arunkumar.