STM32 MCUs Products

Resolved! CAN FD multiple MCUs

I am trying to connect 2 NUCLEO-G0B1RET6 boards,using CAN FD. I previously did it using CAN, But now i am trying to connect these boards using CAN FD. So far no success,I want to know if it is possible to do it using CANFD.Kindly help me in this rega...

program flash of STM32H745 and execute code from same bank?

Hello,my CPU is a STM32H745. I want to flash data into both banks (bank 1, sector 2-7, complete bank 2, while the code runs from the first bank, sector 0+1.I'm using the given HAL-drivers stm32h7xx_hal_flash.c and stm32h7xx_hal_flash_ex.c and found a...

Resolved! STM32L452 LSE not starting

I have an STM32L452 rigged to use an external clock so we can keep the RTC running. Schematic attached.X2 is a clock from SiTime, programmed to be 32.768kHz. C36 is a supercap acting as battery backup. I used STMCube to generate the startup code to f...

Resolved! USB host on STM32L475 board with FATFS

Hi! Hope everyone are doing well! I currently encounter a problem and can't solve it. I want to write some pieces of data into a file in a usb-disk and now the Appli_state is constantly idle even I connect the USB-Disk already.This is a test demo cod...

Resolved! STM32L4 - Could state of JTDI pin affect switch-over to SWD?

I am using a STM32L471 MCU in a design that may be flashed with new firmware in situ. I'm using SWD as the interface, so the two unneeded JTAG pins (JTDI and JTDO) are used for other purposes. According to the reference manual, JTAG is activated by d...

STM32F746: behaviour of from Timer to Memory DMA transfer when timer event occurs

Hi everyone Question: suppose one sets up a DMA transfer from a Timer1 register to memory so that it gets executed when timer event is raised. What happens first:the peripheral to memory DMA transfer is executed ?or the Timer registers are updated?...

SPI DMA transfer issue on STM32H743

I am reaching out to seek your expertise regarding the DMA transfer issue on SPI that I encountered while using the STM32H743 microcontroller.When an EXTI LINE 0 event (data ready) occurs, attached to the code is a program in which 30 bytes of 0xFF ...

Resolved! How to send an image located on a USB drive to the display?

ILI9341 display connected to STM32F407VGT6The USB drive is connected to the STM32F407VGT6, this USB drive contains images, I need to send these images to the display. I already know how to send to the display an array that is located on a USB drive....

STM32F407 I2C INA232 Problem

Hi everyone,I am using STM32F407 to read voltage and current values from INA232 and TCA9548.I have 8 INA232 so I used TCA9548 as I2C Switch.I have coded as follows:1. SET TCA9548 on Port 12. Read the voltage value on INA232 at port 1The result I get ...