STM32 MCUs Products

How to "printf" on STM32F746-DISCO ?

I followed the step on the following video without the configuration of SD card. (I don't need it)https://www.youtube.com/watch?v=4f-leBIJkRY​Whenever transmitting 10 characters, the program broke bown on 11-th character as below: printf("12345678901...

HAL_I2C_Slave_Receive_IT() only receives one data byte and then the slave helds the SCL line low

Hi all, I'm trying to send a dat from master to a slave (the STM32F103C6) with HAL function for polling mode is working well and it is receiving all the data I send (I got all ACKs) but when I try to do the same with interrupt mode then it receives o...

Hello everyone. I have a custom board with STM32F103C8T6. It was made for debugging so it doesn't have any unusal peripherals (only oscillator, filtering capacitors etc.). But there is problem: voltage on NRST pin equals about 1 V.

It is strange because I did not program the chip, the flash should be pure. Also I can't connect to the MCU with ST-LINK. What's wrong with NRST?

I cant change my duty cycle in LL TIM Library. I cant change my signal too. I want change my motor power. How can i do this?

STM32H747 Discovery - DMA not starting

Hi, I tried to translate my 32F746 Discovery Audio program (SAI with DMA DB Mode) to the STM32H747 Discovery Board (using the M7). SAI and DMA are correct configured. I am not able to start DMA1 Stream 0 or to set the S0CR EN Bit manually. SAI is st...

What are the Flash Sector Lock Registers to Lock STM32F215VGTx Flash Sectors 5,7 so that after Production Sectors 5,7 will never be Possible to be Erased .

What are the Flash Sector Lock Registers to Lock STM32F215VGTx Flash Sectors 5,7 so that after Production Build Sectors 5,7 will never be Possible to be Erased .

HAL_Uart_Receive is Receiving only one byte, even the size is >1.

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   ret = HAL_UART_...

QUAD-SPI too busy!

Hi guys,i am using the QuadSPI periphery to interface with a FPGA. I am in need of raw throughput with alternating write and read cycles of some number of bytes. I am just concept-prooving right now.Since QUADSPI->CCR is not allowed to be modified wh...

How to know which data in hex files is for internal Flash & which is for External QSPI Flash?

Hello Everyone,I am working on a project in which we load hex or bin file in USB pendrive and stm32F7 will read this file over USB_FS using Fatfs. Then it will program it self using same hex file(IAP from USB pendrive ). if i am using only internal f...