STM32 MCUs Products

I had some issues with USART3 with nucleo-H723. The board's UART3 is connected to st-linkV3，When I using USART3 to send data in keil, it works fine，but when I use Clion is, the PC serial port shows packet loss, and I want to know what is the reason an

memcpy vs split SPI transfer

Hello,I came across this question while writing a driver and I would like to ask what is your best practice in this regard. So lets say you want to interface with an chip via SPI. To perform any action, a command byte or a sequence of commands is req...

Can I get Your latest version of REACH SVHC letter to my mail address, please.

I need latest version of REACH SVHC letter..

STM32F779AIY6 - What if NC pins are connected to GND?

Hello,i just received some custom boards with a STM32F779AIY6 on it.3V3 net and GND net have a short circuit when MCU is soldered, without MCU there is no short circuit.I checked everything, it should be fine.But what i just found was that the datash...

PWM with DMA

Why is my ADC reading zero for values?

My objective is to utilize ADC peripheral for reading analog signals and converting them to digital. I am using the polling method for reading ADC values. When setting up the chip configuration, I am currently using the Nucleo-H743ZI with default set...

HAL_ERROR calling HAL_TIM_PWM_Start_DMA to generate variable duty cycle PWM

Hello,i am trying to generate a fixed 800kHz PWM signal with variable duty cycle on a STM32F446RE (Nucleo-446RE). As you already might have suspected, i am intending to drive WS2812B LEDs.For this I intend to let TIM1 run at 800kHz and have TIM_CH1 r...

Variable NOR flash wait-states using the STM32F4's FSMC

Hi all,I'm planning to use an STM32F405 and its FSMC to interface with an external, parallel 16-bit NOR flash chip from Infineon/Cypress.This chip has a read page size of 32 bytes / 16 half-words.When reading a half-word that is located in a page whi...

ADC+DMA fills all the buffer when calling to HAL_ADC_ConvHalfCpltCallback()

In a stm32f303rb76, I commanded to operate ADC+DMA by setting of the ADC DMA with circular modeThe ADC I activated continuous conversion modeand DMA continuous requestAlso the analog input signal (no scan mode)In the initialization made following com...