STM32 MCUs Products

I'm a beginner and i'd like to start with STM32, and use uart protocol to communicate between two F767ZI cards (sorry for my english)... ^^ I use STMCubeIDE, downloaded stlink009. I saw lot examples on other stm32 without result when i code something

Moreover i understood that printf function is so complicated to be used.I'm using an oscilloscope and LEDs to test my code and functions.GND pins are connected too.TO begin, i only transmit from one card to the other one with the function hal_uart_tr...

HAL NAND PROBLEM

It seems that there are two major matter that have been neglected by HAL developers for NAND peripheral.First, if someone has a NAND IC with more than 1Gb (I have K9F2G08U0C with 2Gb storage) on PCB, then Read ID function doesn't work completely. The...

I am designing a keyboard using STM32F072VBT6. I am using row colomn scanning(matrix) logic to detect the key press..I want to detect simultaneous 10 keys press & send the data over USB port....Is there any sample program to detect simultaneous key press.

ULPbench score too low for STM32L432KC

I used X-NUCLEO-LPM01A, STM32 Power shield to measure power consumption of STM32L432KC and got ULPbench score 0.04 which seems extremely low. Normally, according to the examples I saw, the score should be above 100. All my STM32 board is doing is a ...

STM32F746 ADC multi channel with DMA problem!!!

HiI tried to use ADC 2 Channel Scan Mode with DMA circular but it didn't work...and very strange point is when i init DAC with DMA , ADC works. |:anybody knows why?how i use ADC DMA without DAC initialize?thanks for your help.the ADC configurations ...

Ping Pong UART DMA

Hi, I fove the following code:void EXTI9_5_IRQHandler(void) { ... if(GPSDMAStart == 1){ if(currentPing == 0 && currentPingProcessed == 1){ /* currently pong, switch to ping */ hdma_uart7_rx.Instance->CR &= ~(1 << 0); hdma_uart7_...

SPI DMA STM32H7 SPI Slave response issue

I'm trying to implement a SPI Slave using a circular DMA on the STM32H7.I'm able to correctly receive the bytes sent from a master.I have enabled an interrupt on the rising edge of the chip select to read out the sent bytes at the end of a transmissi...

LL_RCC_GetTIMClockFreq doesn't account for the APB Prescaler - is this correct?

I'm writing an application which uses a timer (TIM2 in this case) to track communication timeouts. So the timer period changes periodically, it might be an inter-byte gap timeout at one point and an inter-packet timeout the next.I'm using LL_RCC_GetT...

I have to interface the following in my application: Ethernet – 1 no. SD memory card – 1 no. IOs 24 UART (Serial) – 1 no. LCD – 1 no. And microcontroller selected is STM32F429ZIT6. Please suggest the evaluation board.

HAL_UART_Receive() on STM32F407 is receiving only one byte a time irrespective of amount of data being transmitted on transmitter side.

Hello,Am using STM32F407 (Discovery board). This is connected with a PC which is sending 100 bytes of data and realized that only 1 byte is received and remaining 99 bytes are lost. Below is the code excerpt running on STM32F407      while(1)      { ...