STM32 MCUs Products

STM32F4 discovery board and arduino SPI problem

Hello,I'm trying to establish SPI communication between STM32F4 discovery board with STM32F407 MCU and an Arduino uno. The arduino acts as a master and I'm using it to interface my board(which acts as slave) with the PC since I like arduino uno's ser...

Double buffering with HT and TC interrupts [STM32G0], how to handle them.

I'm trying to build a double buffer (or ping pong buffer) using the HT (Half transfer) and TC (Transfer complete) interrupts. Also, I'm using DMA with circular array and ADC is triggered by a timer at 6 kHz. I have the algorithm below (I'm not showin...

We are using "STM32G473VET6" MCU in our design. And we are connecting same voltage of 3.3V to VDD, VDDA and VREF+. Is that the correct way or we need to change power supply for VREF+ ?

STM32G473 UART DMA free run not active but in trace mode it's work.

Hello,I make STM32G473 UART DMA work in debug trace mode (ST-LINK V3).when I disconnect wire and power off to reset for free run.it's not work.I don't understand.​

USB CDC communication failure due to EMI

Hi everyone,We are facing issues with USB in our new products due to EMC (electromagnetic compatibility). IEC61000-4-4 burst, mediuum severity.The USB stops working fequently when the device is connected to a PC and a burst is applied to the AC power...

I am looking for help with DMA channel memory to a peripheral for a timer.

I am not sure how to handle DMA channel from memory to peripheral. I have a circular buffer of 2*24 words that I want to load to PWM. I want to update(generate) new values once half and top of the buffer is reached. I was using similar thing for ADC ...

How can a UART communication burn an MCU?

I am using the STM32f4-Discovery board, with the stm32f407vgt6 mcu. I am using it's USART peripherals at pins PB10 and PB11. Upon connecting another device to the USART communication something in the MCU failed, and now the board is not working prope...

HAL_UART_Receive_DMA has an unfindable hickup.

Hello,I'm working with UART Communication between a RPi and an STMG070RB. For the UART communication I'm using the library function HAL_UART_Receive_DMA.I have an initialize in which the Receive function waits for 3 bytes to be received (My messagehe...