STM32 MCUs Products

How HAL I2C slave works?

I'm trying to do I2C Slave but I totally don't understand how to implement it using HAL.I have a good record of data in Slave.But but when I use HAL_I2C_Slave_Sequential_Transmit_IT I get a HAL_BUSY error.What should I do? I looked at the examples bu...

STM32H743 Using peripheral to memory transfer via DMA works only once.

I am using HAL_DMA_Start_IT(..) to read data from GPIO that is triggered via a Timer IC. It works the first time, but if I use HAL_DMA_Start_IT(..) again the destination memory is not updated but I get the transfer complete interrupt. If I use a dif...

STM32F4 CAN2 TX mail boxes return full while using both CAN1 and CAN2 at 500KBPS

I am trying to use both CAN1 and CAn2 with both 500KBPS . CAN1 transmits successfully . But for CAN2 TX mailboxes return full. Below is my CAN configurations file. Any help appreciated

Cannot program using JLink - "Could not verify ST device!" with real device with correct identifier

I am unable to program any boards from CUBE IDE at the moment. I am using Segger JLink, which connects and correctly identifies the chips from the Commander.When I use Debug, with configurations I have been using for ages, and successfully programmin...

Using STM32L451 trying to output a sine wave via Opamp using the DAC output follower mode. Sine wave on DAC1 out PA4 but nothing on opamp output PA3. DAC1 is set to both ext pin and on chip. I have started both DAC1 DMA and opamp. Any ideas?

How to connect STM32H745I-DISCO with openOCD using openOCD ?

Hello,I am not able to connect my ubuntu 20.04 laptop to a STM32H745I-DISCO board using openocd.```$ openocd -f board/stm32h745i-disco.cfgOpen On-Chip Debugger 0.11.0+dev-00450-ge67ff42de (2022-01-14-09:58)Licensed under GNU GPL v2For bug reports, re...

Reading unavailable pin.

Hi,I have a program that will run on STM32G030C8 or STM32G030K8. C8 has a 48pin case, K8 - 32pin. The PC13 port is available in C8, there is no output in K8. If I read this pin in K8, it always returns 0, regardless of whether I turn on the pullup. W...