STM32 MCUs Products

STM32H725 ADC3 with BDMA end of buffer is never written to

We have a project in which we acquire 12 ADC channel with a 600 samples per channel. The data acquisition works, but the end of the array never gets written to by BDMA.I have cross-checked the behaviour with the NUCLEO-H723. Basically same configurat...

I would like to see sample code or accessing sensors on B-L4S5I-IOT01A

I understand that there are many sensors available on  B-L4S5I-IOT01A . But I am not able to find any tutorials or sample code for reading data from these sensors. If there is anything can anyone in this group help me

BACnet Stack for stm32g431 microcontroller

Hi all I am working in the implementation of Bacnet MS/TP protocol in stm32g431 using rs485 can any body guide me about the stack available.Thankyou

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?