STM32 MCUs Products

ADC + DMA Sometimes read Zeros

I am reading the data after sampling 2048 each 3 times.But is there a reason why sometimes the data is read as 0?​​The cube mx configuration and part of the code are as follows.​please help thank you

Issue if tick rollover occurs while waiting for flash

I note in the post (from July 31, 2020 at 8:33 AM) entitled "FLASH_WaitForLastOperation CubeMx error" (here: https://community.st.com/s/question/0D53W00000EDrjiSAD/flashwaitforlastoperation-returns-error-in-stm32g070), that there is a mention of an e...

Finding the name of the USART handle

Hi. I am going through the STM32 Step by Step instructions, as well as going through the "Description of STM32F7 HAL and low-layer drivers" manual. I am using the STM32756-EVAL board so I have made some appropriate changes based on the pins and ports...

STM32H7 SPI2 unrealibe transmission of data

Hi everyone,A new issue has occur and have no idea as to why the transmission would be sometimes corrupt. I try sending the word "Hello World" as a test, however sometimes I would receieve the word but sometimes I would receivbe garage values that va...

Does the STM32G070CB/KB/RB have an internal voltage reference?

In the RM0454 the chapter 14.9 is "Temperature sensor and internal reference voltage". It explain how to compute the actual VREF+ using the internal reference voltage. And the ADC has a VREFINT channel.But I can't find VREFBUF.In the datasheet (DS127...

How to find stock of STM32L476J*Y*P parts, or other STM32L476 parts, or any STM32 parts with special SMPS pin assignments. The SMPS feature is not listed on st.com or digikey, etc. Virtually impossible to discover if any parts with feature are for sale.

hello i'm trying to make a project whit stm32f401ve and Digital Thermometer DS1621 using I2C protocol, and I have a problem whit i2c receive. here is my source code and photos of datasheet and simulation any help will be appreciated

 static const uint16_t TEMP_ADRESS = 0x48<<1; int main(void) { HAL_StatusTypeDef RETURN ; uint8_t buffer[1]; uint8_t buffer2[2]; uint16_t Val ; float temp_c ;   HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); MX_I2C1_Init();   buffer[0]=0x...

NUCLEO-F411RE Openocd "Cannot identify target as a STM32 family."

Hi everyone,I am currently trying to learn rust embedded thanks to 3 stm32 based developpement board :Nucleo with STM32F103RBSTM32F3DISCOVERYNucleo with STM32F411REI have no issue with the first two ones but I can not make work the F411RE with gdb & ...