STM32 MCUs Products

STM32F767 ADC with 4 channels regular group missing sample.

Hi all, as mentioned in the title i have an issue with the ADC configured to sampling 4 channels with different rank.I want to collect the sample in one array ( array uint16_t values[4] ) in the same order for each conversion done. The data in the ar...

STM32L4 RTOS SDCard doesn`t work

Hi, I have custom HW with STM32L496RGTx. On board I have SD card slot. I tried HW with CubeMX. Setted SDMMC1 to Mode: SD 1, SD DMA - SDMMC1 and divider to 24. In code I wroted: FATFS SDFatFs; /* File system object for SD card logical drive */ char S...

Weird characters on I2C 16x2 LCD

Greetings to all.I'm Following some online courses to learn to program STM32. I have a very weird behavior of my board that gives me not few headaches. After reviewing, changing, testing my codes for 2 days i found a way to get my program running cor...

How the CAN is transmitting the ACK using HAL CAN transmit API or how to detect the 2-bit ACK change recessive to dominant using HAL CAN transmit API?

Hi, I'm new to STM32L4. I'm trying to connect an ADI evaluation board to my STEVAL-STWIN through SPI2. I had to adapt the different functions to the HAL library.

I am trying to read the register of the chip_id, but the function returns a nDevId that is probably wrong. I set STG3692 switch to obtain SPI configuration and I introduce a GPIO_PIN to configure CS. What could be wrong? below the basicsteps of the c...

I2C repeated start condition to read BME280 problem

Hi,Device: STM32F103C8T6Driver: LL (low layer)It's been days I have struggle reading BME280 which is connected with i2c to my mcu. After configuration, I'm trying to read registers with standard reading procedure as following:Generate Start condition...

ADC to DAC problem

Hi guys, I have a problem with ADC conversion I would say. I put sine wave on ADC input and then I just transfer the value to DAC register, but the negative half of the sine wave is clipped. The code is just this ( Inside HAL_ADC_ConvCpltCallback):DA...

There seems to be a difference between the system clock immediately after the firmware update and the system clock after the reset (or after power off->on).

Hello. I am using stm32f765 series mcu with iar compiler. A strange thing was caught during development and I left an inquiry.The problem I'm facing seems to be the difference between the system clock right after the firmware is uploaded and the syst...