About LVara.1

LVara.1 · 2023-04-30

LVara.1 · 2022-10-10

Hello everyone,return to the issue of problems that can arise using the HAL_Delay (), within the Interrupt service functions in projects for embedded systems without RTOS.Briefly: the HAL_Delay (), uses the interrupts thrown every mSec by the system ...

LVara.1 · 2022-04-10

Hi, I'm trying to use IRQ Software calls with Nucleo-F4 boards in STMCubeMx 1.8 environment.The UM1725 - Rev 7, pag. 346, tells me to use the HAL_Generate_SWI.The call, included in stm32f4xx_hal_exti, requires you to define two simple structures: EXT...

LVara.1 · 2022-04-10

LVara.1 · 2022-03-26

I'm using a board Nucleo Stm32F401RE on Stm32Cube 1.8.A simple question : I have cofigured, in MX, I/O pin PC5 as GPIO_EXT_INT5with interrupt in falling edge , pull_up enabled and NVIC[9:5] enabledRemember: in Nucleo board PA5 pin control in OUTPU...

LVara.1 · 2023-05-01

Correct .... MX tries to give a physical representation of the micro, and in some cases the pins are 'hidden'. Thanks

LVara.1 · 2023-04-30

Thank you... but ," Actually, the Flip horizontal/flip vertical buttons are available only for BGA packages." as ST say. :expressionless_face:

LVara.1 · 2022-11-29

Many thanks. I'd changed the structure and resolved the problem. I use the timer at a higer Tim3 pulse frequency (100 times higer) and I set DMA to complete the transfers on 100 lectures.In this way i can control the pulse number ( olso in this w...

LVara.1 · 2022-11-27

I was tryng a simple example on a Ncucleo STM32F401RE: read and convert on ADC1 internal temperature sensor and VCal (for calibration), cotrolling the start conversion via TIM3 (each 1000 mSec) and tranferring data on a buffer via DMA2. At half ...

LVara.1 · 2022-11-26

"HAL_TIM_PeriodElapsedHalfCpltCallback is not called in most scenarios, including this one. It's used during certain DMA transfers and is called when the DMA's HT interrupt kicks off.""Certain DMA" ... but in DMA2 I use I have no call at HalfCplt ....

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In MX I noticed that the colors of the pins are, for some micros, more lively and the pins are drawn with solid lines, while in other cases with small strokes. (For example STM32F401RET and STM32F401CCUx). Am I making mistakes or is everything normal?

Systick IRQ priority and HAL_Delay()

External IRQ control via Cortex library or via HAL library

IRQ setting/controlling via NVIC or HAL?

Externai interupts for I/O pin in OUTPUT

Re: In MX I noticed that the colors of the pins are, for some micros, more lively and the pins are drawn with solid lines, while in other cases with small strokes. (For example STM32F401RET and STM32F401CCUx). Am I making mistakes or is everything normal?

Re: In MX I noticed that the colors of the pins are, for some micros, more lively and the pins are drawn with solid lines, while in other cases with small strokes. (For example STM32F401RET and STM32F401CCUx). Am I making mistakes or is everything normal?

Re: The HAL_TIM_PeriodElapsedHalfCpltCallback function doesn't generate an interrupt.

Re: The HAL_TIM_PeriodElapsedHalfCpltCallback function doesn't generate an interrupt.

Re: The HAL_TIM_PeriodElapsedHalfCpltCallback function doesn't generate an interrupt.