STM32 MCUs Products

F4 DMA2 errata - how to handle that

Hello!We have choosen the STM32F407/427 for our product, a couple of years ago.It fits with the speed, and also with the possibility to use DMA for mutliple peripherals.Now, as we have found out the hard way, the DMA2 fails while handling ADCs and SD...

Hello, I try to figure out if and how it is possible to use dual qspi with two separate flashes, one for the application (program) and one for the file system (data).

STM32F051C8 ADC Accuracy Problem

Hello,I've been using STM32F051C8 on some of my projects and I recently realised that, my ADC is not converting accurately. I connected my Vdda to Vdd, that is 3,3VDC and tried conversation routine below.Here is the initialisation: Single Channel con...

List of all Cortex-M4 registers and addresses in plain text?

I would like to dump all Cortex-M4 registers of my STM32F405 microcontroller over a UART. I have found the Technical Reference Manual (https://static.docs.arm.com/100166/0001/arm_cortexm4_processor_trm_100166_0001_00_en.pdf) but there are tons of reg...

Correct way to initiate multiple ADC reads? (My second reading is causing a fault)

I'm reading ADC1 and ADC2 in Dual Regular Simultaneous mode using DMA on a F334R8 nucleo board, as per instructions in UM1786 section 6.2.2 "Execution of ADC conversions":void readADCs(void) { // enable ADC slave if (HAL_ADC_Start(&hadc2) != HAL_...

NWE pulse problem

I want use external memory IC(IDT 7204 FIFO memory)I use two STM32H743II(one is write FIFO, one is read FIFO)I think read was good work.but write is not good.I set FMC LCD Interface like Cubeset pictureI think one data write operation, NWE pulse appe...

How to create measure the execution time of a function with a timer?

Hello, I am using the STM32F767ZI board and I want to measure the execution time of a function. The function I want to measure is a function I created. At the moment, I use the timer 9 configured in internal clock (216 MHz) with: Prescaler = 108 Coun...

how to build a stm32 IOT ethernet/lwip device

Hii need to build a simple IOT motor control unit. I also need OTA update.what is the quickest way of getting started?Mongoose os? What else is there?Thx

Reading PDM data from MP34DT05-A with STM32F407 I2S

Hello, it is the first time when i have to deal with microphones and PDM interface. I just can't get correct data from the microphone, or the data is correct but i am doing something terribly wrong. I configure I2S to sample microphone with DMA. Whe...