STM32 MCUs Products

I am working on STM32H743 micro operating as a slave I2C device. I am able to write to the slave device by a master I2C device but I can't seem to read.

I have done some investigation and arrived that the problem is with the "DIR" bit in the Interrupt Status register not firing to indicate whether to do a Read.uint32_t isr_trace[64]; int isr_count = 0;   void I2C2_EV_IRQHandler(void) { isr_trace[...

[How to] From Mechanical to Capacitive controls Guide (Buttons with sharp edges and 2mm clearance, 2 layer pcb with cover glass (50x70mm))

Even though most of you may be relatively familiar with the various types of mechanical controls, the same does not necessarily apply for capacitive ones. So, let’s start off by defining the most basic elements of capacitive sensing.Capacitive button...

Hi I am working on the ADC peripheral of STm2 f401re board, I am unable to obtain a good signal for greater than 10khz. Can you please help me with the same

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...