STM32 MCUs Products

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...

Battery affecting program execution for stepper motor driver on nucleo board

Using a Nucleo f401re nucleo board with a 'X-NUCLEO-IHM03A1' shield that houses a powerSTEP01 stepper motor driver. I've downloaded and run the example projects from 'X-CUBE-SPN3' by ST and the stepper motor runs perfectly. I then generated my own pr...

Hi, please where can I find any example how to open/write/read a file in the flash for the stm32l4?

Automatic Serial numbering to differentiate the various devices

Hello to everyone,I am developing an indoor sensor system using a ST microcontroller. The hardware used includes a battery power supply, an analog sensor and a radio transmission part. Assuming that I produce more pieces of the sensor, I would like t...

TIMx Link TIMX to Measure External Frequency

Am using NUCLEO-STM32H723 Nucleo-144 board.Sorry, but I have no experience with the above MCU/TIMx.My goal is to measure external frequency as accurately as possible.I'm interested to know how to Link between two timers.Example : TIM3 ( Master ) TI...

I need to configure CAN filters in such a way that only ID 0x80 and IDs between 0x200 and 0x300 passes all others are not allowed to be passed. How to do that?

I tried in this way but the problem is only 200-300 can pass but 80h is not passed. if i use if else then only 80h is passed not 200-300h. So, the problem is i can pass either 80h or 200h-300h. Not both 80h and 200-300h. #define Filter_ID1  0x80#def...

Why Microcontroller is halted after Power-on Reset?

Hi,I wrote a simple Led blinking program in STM32F303CB.-> On power-on reset Controller is not getting started.-> I used Internal Clock and External Clock-> But the same behavior in both the cases.Thanks.