STM32 MCUs Products

MCU gets stuck when enabling DMA channel to read from GPIO register on STM32F103.

I want to read from GPIOB in regular intervals into the RAM. After 8 hours of reading blog posts, examples and trying different things I had no success. I am using STM32Cube to generate code and I am using following code to initiate transfer. So far ...

My potentiometer in a adc led counter doesnt work

Im trying to do an ADC led counter, but when i debug my program i see the live expression and i can watch the changes in the potentiometer, but D10,D9,D8 AND D7 are on but with 1.8v, and d5,d4,d3,d2 turn on with 3.3v, the main idea is that when i rot...

STM32H743 Using of Multichannel ADC Triggered by Timer in Interrupt Mode

I'm having a trouble when using multichannel ADC. In my application there is 2 ADC which contains 7 channels. In ADC Interrupt Callback, I'm pushing the read data to array of 7 elements. But I couldn't see the proper value in proper element of array,...

FMC and SDRAM sample

I'm using STM32F469 with 2M x 16 x 4banks (16MB) SDRAM.I'm just trying to run FMC_SDRAM sample for STM32469l-EVAL and it seems the first 256 data could write/read successfully.My question is that to access memories in 2 to 4 banks, do I need to send...

I am new to STM32. I and trying to learn STM32G0. Which tool I should use from the following. In future I will also be using STM32F769 also. I want to use only Free Tools. 1. SW4STM32 2. TrueStudio 3. STM32CubeIDE

STM32F7 and MPU

Hello everyone,I apply STM32F746BE with externel SDRAM 32MB (MT48LC16M16A2P-75 IT:D) and externel FLASH 16MB (MX25L12845GM2I-10G), Ethernet (LAN8710AI-EZK), LCD.Vector' table is located at 0x20000000. Firmware is runned from externel FLASH 0x90000000...

Time consumption FFT calculation. CMSIS, STM32F401RE

Hello,i calculate an FFT with the STM32F401RE. It works fine so far. Here are the relevant code snippets:arm_rfft_q31(&S1, (q31_t*)fft_input_buf1, (q31_t*)fft_complex_buf1); //takes about 1760 µs   arm_cmplx_mag_q31((q31_t*)fft_complex_buf1, (q31_t*...

Can't set Option Byte with the attached function for the Micro STM32L151CBT6A Only when the controller is new from factory. If we erase and reset the option bytes the STM32 afterwards new flashing it works.

void init_OptionByte (void){    FLASH->SR |= FLASH_SR_WRPERR ;     // l�sche bestehende Fehler    FLASH->SR |= FLASH_SR_PGAERR ;     // l�sche bestehende Fehler    FLASH->SR |= FLASH_SR_SIZERR ;     // l�sche bestehende Fehler    FLASH->SR |= FLASH_S...