WebIf its accessing globals, search them to see where they are being written. You will see that HAL_GetTick is just returning uwTick, which is a global that is incremented in HAL_IncTick. Hal_IncTick is called from the SysTick_Handler interrupt. viola, look at how the hardware is setup for SysTick and you have your answer. WebPosted on December 04, 2015 at 02:32 . I found the first time tickstart = HAL_GetTick() is performed, the tickstart has the value 0. The second time, HAL_GetTick() returns some big value so it stays endlessly in while statement.

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Web1. When you use a HAL_DELAY you have to keep in mind that the counting is done in the interrupt routine SysTick. If you call the HAL_DELAY in the interrupt that has greater … WebFirst of all, the call of both HAL_GPIO_TogglePin and HAL_Delay are not single instructions, so the actual time spend in the loop will be "a tiny bit" longer than 500 ms resulting in a frequency which is slightly below the intended 1 Hz. Sure, it will only be "off" by a few micro seconds, but it will be off! The second problem is the "HAL_Delay". simple easy cover letter template free

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WebDec 25, 2024 · Make sure that HAL_InitTick() is never called. Now you can use this implementation of HAL_GetTick(): uint32_t HAL_GetTick( void ) { return uwTick; } I … WebDec 25, 2024 · Make sure that HAL_InitTick() is never called. Now you can use this implementation of HAL_GetTick(): uint32_t HAL_GetTick( void ) { return uwTick; } I normally user solution 2. If you need a high-resolution and very precise time source, the use of a timer interrupt is recommended. WebHAL_IncTick (void) This function is called to increment a global variable "uwTick" used as application time base. __weak uint32_t HAL_GetTick (void) Provide a tick value in millisecond. __weak void HAL_Delay (uint32_t Delay) Provide accurate delay (in milliseconds) based on variable incremented. __weak void HAL_SuspendTick (void) … simple easy cute dragon drawing