STM32 MCUs Products

Very strange byte write on external 16 bits SDRAM

Hello, I need help with my external SDRAM I try lot of thing like use discovery board (STM32F769i) with a SDRAM on 32 bits and when I try 16 bits or 8 bits all is ok work like a charm.My custom board have a STM32F779 with 16 bits ram.My issue is that...

STM32L412 - WLCSP64 IC - USB configuration

Hi All,Iam using this STM32L412 MCU based WIFI module (Murata's Type 1LD module) in my project. Currently powering it with 1.8VDC for the operation and my other peripheral are 1.8V logic also it is battery operated project . Here im not able to brin...

Could you please tell me how to create Timer delay in 1ns using Low power timer (LPTIM1 ) using external waveform generator with supplying 13.56MHZ sin wave signal to LPTIM1_IN1 ( PC0_ PIN)

STM32 UART boot-loader Go command is unclear AN3155

Hello,I am implemented UART bootloader on my windows controlled test bench. All is great and working, but some uncertain exist with jump command.Its says in app note:jumps to the memory location programmed in the received ‘address + 4’ (correspondin...

Loading the 2 applications from Flash memory

I am working on STM32L151RCT6 controller in STMcube IDE.. i have one application running in the Flash from starting address and one more application i want to run it from other location of Flash..basically 2 block of firmware(applications) i am consi...

STM32H743 Internal Flash (single sector) going bad

Hi,I had a question with respect to the internal flash of the stm32 chip that we are using. After much investigation, it seems that the erase operation (via the HAL_FLASHEx_Erase_IT() function in software or using the ST-link utility directly) is "sl...

Run two DMAs simultaneously on STM32F407

I am working on a project that uses an STM32F4 disc board to read and write external ADC and DAC with two SPI interfaces. SPI1 (DMA2 Stream3) is set to TX only to write waveform to a DAC, and SPI3 (DMA1 Stream0) is set to RX only to read an ADC. Whe...

Hi everyone, I'm a beginner with MCUs. I want to read ADC values from 12 channels continuously and I'd like to implement an averaging process before transmitting them through UART. I'm using Nucleo-L476RG.

Signals are similar across all 12 channels but I'm confused about how to run the averaging algorithm for 12 channels at the same time. Currently, I can get the ADC values from all 12 channels using DMA without the averaging process.To explain further...

LCD (with PCF8574 I2C module ) doesn't work when using HSI in 0.5MHZ .

I am working on a low power project using the stm32f103c8 (bluepill) and for some reason, the lcd refuses to work in low frequencies (500KHZ) , it works just fine in high frequencies (72MHZ) mind you. is it something related to the I2C clock? I've tr...

STM32H745ZI(LQFP144) FMC and SDRAM support

Hello ST community! I have a question about FMC on STM32H745ZITx (LQFP144). In the datasheet DS12923 (https://www.st.com/resource/en/datasheet/stm32h745zg.pdf) it is not said whether it supports SDRAM. And there is no "SDRAM" item in the FMC settings...