About hhuyn.1

hhuyn.1 · 2022-09-02

The function "__weak void HAL_SYSTICK_Callback()" is implemented in "stm32f4xx_hal_cortex.c"I overwrite it in the "main.c", I compiled project, but my project still does not work.void HAL_SYSTICK_Callback(void) { HAL_IncTick(); }Why am I wrong ?Wher...

hhuyn.1 · 2022-08-30

I write a simple blinking project on STM32F4 Discovery board.It calls HAL_Delay() function for blinking effect on one LED.But the code hanging when reach HAL_Delay().When I debug, the HAL_Delay() stuck at while() loop in there.Here my code :#include ...

hhuyn.1 · 2020-09-07

I am just a beginner with C, I set up a project with Keil MDK, the header files make me a little confused. I don't understand the meaning of "driver". The blinky project takes me a while but go nowhere.Does STMicroelectronics public any documents abo...

hhuyn.1 · 2020-07-29

I'm drawing schematic for a small project, I have an information trouble with SDIO. I don't know how to wiring SDIO interface to micro sd card slot. Is there any document can help ?Thank !Sorry if my English is poor.

hhuyn.1 · 2019-12-28

I am studying "audio example" in "stm32f4cube mcu package".In main.h file:#include "stm32f411e_discovery.h"How is this posible ?. "stm32f411e_discovery.h" file and "main.h" file are not in the same folder.

hhuyn.1 · 2022-09-03

I put an define of HAL_SYSTICK_Callback() in main.c that just call HAL_IncTick();I don't know how to let my project aware of the new function.When debugging, it jump to a weak SysTick_Handler() define in stm32f411xe.s that seems doing nothing.

hhuyn.1 · 2022-09-02

I don't use STM32CUBE MX to generate code. I do it myself for learning C and embedded hardware.In Keil C project, I see one file stm32_hal_cortex.c that services NVIC, SYSTICK and MPU.But I don't see file "stm32f4_it.c" in the project. Which software...

hhuyn.1 · 2022-08-30

In Keil C, I trace reversely the HAL_Init() functions. I guess it does not initial Systick completely.At the end, one function in "core_cm4.h" is displayed blurry.it's here :/* ################################## SysTick function #################...

hhuyn.1 · 2019-12-28

I'm feel so sorry.In the "main.h" file, how we can include "stm32f411e_Discovery.h"The file is in Drivers/BSP/STM32F411E-Discovery folder, not the same folder as "main.h". It is in example project folder.In addition, why aren't header files in the sa...

hhuyn.1 · 2019-12-12

Thank you.

User statistics

User Activity

Where to put the "overwritten" of a "weak" function ?

HAL_Delay() hanging in main() function.

Documents about CMSIS, HAL, ...

Wiring micro sd card slot to MCU

How we could include header file that is not in the same folder as current file ?

Re: Where to put the "overwritten" of a "weak" function ?

Re: Where to put the "overwritten" of a "weak" function ?

Re: HAL_Delay() hanging in main() function.

Re: How we could include header file that is not in the same folder as current file ?

Re: Which MCU is capable of decoding H.265 (HEVC) ? Can stm32f411 do it well ? Thank you.