Posted on October 17, 2017 at 00:54
I cant get the STM32F746 timer tick interrupt to work even though I have followed the chain to the tick ISR. Comments in the code are a bit unclear too.
/** @addtogroup HAL_Private_Variables
* @{
*/
__IO uint32_t uwTick;
/**
* @brief Provides a tick value in millisecond.
* @note This function is declared as __weak to be overwritten in case of other
* implementations in user file.
* @retval tick value
*/
__weak uint32_t HAL_GetTick(void)
{
return uwTick;
}
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The uwTick is in private section. But I don't know what it really is. In the code it is said to be a global variable but it isn't because if I use it in my main.c, I get an undeclared error.
By the way, I'm trying to make my own callback work. Similar code has worked before but not now.
(volatile int own, own2=0;)
void HAL_SYSTICK_Callback(void)
{
own2++;
//uwTick++; //uncommenting this gives an error.
if (own2>1000)
{
own2=0;
own++;
}
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