STM32 MCUs Products

STM32F411 SPI with DMA not firing IRQs

Hello.I have a custom board with STM32F411RET6. I need to use SPI1 to communicate with an RF chip. I'm using HAL and FreeRTOS. I need to use DMA, since it's a high-throughput application. I'm not using CubeMX.The problem is I can't get any IRQ to fir...

How to handle Variable length receive data via UART

Hi All,The idea, to use variable length data on UART receiver is that "Use a timer ",I am using a timer with interrupt, Once the first byte is received timer start and on second byte receive timer STOP and store the data and start the time again, At ...

How can it be that the amount of lines of code in main() affect the time it takes to execute an interrupt routine?

Hi community,This question is all about the behavior of the DMA1_Channel1_IRQHandler in my application.I am working with an STM32G431CBT. It is running at 168MHz. Configured with 4 Flash wait states.NVIC interrupt priorities are setup using CMSIS fun...

I want to send data through wifi using B-L4S5I-IOT01A board, but it's throwing a hardfault handler interrupt.

The hard fault handler is thrown inside es_wifi_io.c which I imported as is.

Has anyone found a good entropy source for uCs without RNG? I've tried timebase skew, but the RCs are too stable over short periods. The low bit of the temperature sensor is also too stable. RAM after POR isn't reliably random either. Ideas?

Hi All STM32 users, has anyone successfully done any debugging using VSCode with all the relevant packages installed along with the ST-LINK/V2 probe on Linux?

I have all the relevant ARM utils/etc on the system.As soon as I try to run, I get this message-"Could not start GDB process, does the program exist in filesystem?"Tried jumping through hoops for last few days but getting no where.Tried with all kind...

how to choose stm

Hi guys- help with microcontroller selection- my need is that the microcontroller can handle receiving a lot of data- for example in 1s there will be 90 devices broadcast to the microcontroller, and the microcontroller will send data to tcpserver- so...

STM32G030 BOOT0 Pin not working

I'm currently developing with STM32G030K8T6 (Rev 1.1). I want to use PA14 as BOOT0 pin. So, I set option byte nBOOT_SEL as 0 using STM32CubeProgrammer (nBOOT0, nBOOT1 both option byte are set to 1). But BOOT0 pin not worked. So, I also set PA14 GPIO ...

STM32U585 SPI Transmit issue: Partial last byte transmitted

Hardware: B-U585I-IOT02A dev kitSPI1 configuration:Master mode8-bit data sizeNSS hard outputTx only (2-lines)MSB firstPCLK: 160 MHz; Baud Prescaler 32 yields SPI sck of 5MHzno CRCfifo threshold 1-dataMaster Keep IO State enabledRDY management interna...