Ask questions, find answers, and share insights on STM32 products and their technical features.
Hello. I have project from 2 years ago. During testing, a problem was discovered when sending commands from the master device to the slave device through the CAN. For some reason don't call callback - HAL_CAN_RxCpltCallback (there I analyze the incom...
Using COMP2 with internal voltage referenceWhen using COMP with interrupt as soon as I call HAL_COMP_START(&hcomp2); and interrupt is triggered even if COMP input GPIO is grounded.If i let the code run a trigger is never regenerated afterwards. I hav...
I use STM32F1 Value Line Discovery Kit.I would like to have a common interrupt handler and call the corresponding handler from that common handler.I am assuming the following.Specifically, I am trying to get the IPSR number from its common handler an...
Using STM32H743ZII am using SPI1 in 2 lines Rx only mode with DMA2 Stream 2 as in ST exampleI use Rx DMA with a buffer located in D2 RAM. Using debugger I found that the first reception works well, data gets written into my buffer. But my DMA doesn't...
Using an STM32F429 board, I am attempting to enable DMA transfers for the UART8 TX and RX. However, while reading the data sheet, I found the following DMA channel/stream mapping: You'll note that for the UART8 TX and RX DMA request, both requests li...
The project uses a Nucleo board with a STM32H723NG on it. I have adapted the NX_TCP_Server project and I am using Usart2 as a port to send and get data from a device that is then transferred over TCP. This all works fine when connected to the deskt...
I am working on a project that requires UART transmission using DMA. I am attempting to do this solely through register manipulation. Currently I am only able to transmit data using DMA transfer once, but when I try and send again, the UART sends not...
Hello,I would be glad to doublecheck with you how to implement the following operation with the STM32L476RG uC: I would like to transmit a set of data to a DAC (AD5541) with SPI and the SPI data shall be moved from meomory to the SPI peripheral with ...
HiI’m having some problems using the ADC on external and internal signals with different requirements.It and old design having a new MCU (STM32L452RCT), where only the MCU interface are updated, the application are (almost) unchanged. The PCB are in ...
