STM32 MCUs Products

Hi, I have a board with an external VREF+ at 2.5 V. The processor is a stm32H743ZI. I would like to know which registers and which values i have to configure for using ADC with external VREF. Thanks Théo Campas

I am learning the adv_timer module in the RM0440 document. Is there any error in the OR logic gate in the screenshot?

How to change the system tick reload register "on the fly"

Hi dear friends!We need to synchronize the tick of the system, that handles some control loops, with an external periodic interrupt, so we tried to slightly adjust the SysTick RELOAD register value, but it seems that as the RELOAD register is changed...

STM32F407 Discovery Board Programming error @ 0x08000000!

I have trie everything i am able to upgrade firmware to erase device to see it in win 10 but when i try to flash something i receive program errore  0x08000000! and flash is completely empy. I have he board monunted over a PCD that i do not know why ...

Combined PWM mode STM32F334

I need to generate two phase shifted asymmetric clock signals.This should probably be done using Combined PWM mode.What I need Basic clock in TIMx_ARR for simplicity 4MHz , pin 1 with PWM1 , pin 2 with PWM2Clock 1 2 3 4 1 2PWM1 1 0 0 0 1 0P...

How to flush SPI buffer when using SPI over DMA.

I am using STM32G071RBTx on our custom boards. The controller is connected to a Beaglebone Black over SPI. The STM32 controller is working as an SPI slave and the Beaglebone as the master. There are not CS lines defined for the communication. FreeRTO...

How to use DMA to change PWM frequency?

Hi! I know overall idea of DMA and i need to use it but i have no idea how to do it. I found one post with same question but i didn't found any helpful info for me. I'm not advanced in case of using registers. I used them to directly change CCR and A...

Touch Sensing Controller Environmental Control System limits

Hi,Our application of the touch sensing controller is a three zone capacitive sensor with the left and right sides connected it the form factor of a 4 zone with three signals. We have it placed along the surface of some black plastic that is meant to...