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Error 65:Access violation

Samarth shetty

Hi I am using STM32F410RBT6  CONTROLLER for led blink. 

But it is giving access violation no read permission error. 

Value given to the ODR register is not taking. 

Can any one suggest me how to supress this warning. 

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  • 0 in reply to ChenTang

    yes I tried this but still its not working.

     led is connected to port A 5th pin

    #include"stm32f410rbtx.h"

    int main()

    {
    GPIOA->MODER|=(1<<10);  // port A 5TH pin configuring as a output

    while(1)

    {

    GPIOA->ODR^=(1<<5);  //toggle the 5th pin because led is coonected to porta 5th pin
    }

    I mentioned  my C code in above line .here i am not using any Hal libraries .

    when I try to debug in keil .registers are not updating in system viewer.

    but same thing  I tried  using  CUBEMX32+keil (with all HAL LIBRARIES)now everything is working  fine.

    but i dont want to try with HAL libraries produced by cubemx32.

    I want to do it  by scratch.

  • 0 Arm Employee Badge in reply to Samarth shetty

    Hi Samarth,

    did you enable clock for the GPIO A peripheral?