STM32 MCUs Products

Resolved! GPIO pin analog voltage measurement

HelloI am considering using STM32F769NI.Can all GPIO pins measure analog voltage when set to input?Thank you.

Hi, I'm using 32L152CDISCOVERY to generate PWM. I try to change the PWM from 78% -> 50% -> 78% -> 50% in loop.There is something wrong while generating PWM. If PWM is not changed on fly, the set value is OK. BR, Tomi

Code found in the main.c and figure of the issue seen in PWM_scope_NOK.png.

Sizeof(array) function

Hello,A simple question make me confused. For example, this code with return 40 value for a 10-member array.#include <stdio.h> int buffer[10]; int main() { printf("Hello World %d \n\r",sizeof(buffer)); return 0; }For settings my DMA for sp...

Bug Report : H743 HAL_I2C_Transmit_IT() respond incorrectly when it receives NAK.

The HAL_I2C_Transmit_IT() in the STM32H7 HAL respond incorrectly, when the I2C bus returns NAK. In case of NAK, the I2C error interrupt must be triggered immediately, but it is triggered few seconds later. This is wrong response. The attached zip fil...

Resolved! where can I find the register addresses for STM32L476RG?

Hi,I have a STM32L476RG board and I try to execute the following program, obtained from this web http://www.microdigitaled.com/ARM/STM_ARM/Code/Ver1/Chapter02/Program2-1.txt which is for a different Nucleo 64 board (STM32F446RE)/* p2_5.c Toggle Green...

STM32F469 CAN Rx Issues

Hello, I am attempting to transmit a simple CAN message between two STM32F469I discovery boards. I am using the official STM32F4 github as reference found here: https://github.com/STMicroelectronics/STM32CubeF4/tree/master/Projects/STM324x9I_EVAL/Exa...

Header files required for programming STM32F446 MCU in C

I am new to ARM processor and I need to know what are the header files required in main.c for programming the above MCU in C by just accessing its registers (and manipulating bits) as explained in RM0390 (REFERENCE MANUAL for STM32F446xx) ?NOTE: I am...

Resolved! Issues in changing baudrate of USART1 on the fly

Posted on July 02, 2018 at 11:00Hello,I am using an STM32F042 controller. I have to send a wake-up pattern followed immediately by 5 bytes (@10400 baud) from my device. Wakeup pattern: 25msec LOW followed by 25msec HIGH5 byte sequence: 0xC1, 0x11, 0...

ST32F7 Internal Flash INIT/READ/WRITE for application settings (KEIL)

Dear all,for my application I need to store some user settings in the internal Flash and be able to modify/read them during execution. I have been succesfully familiarising with the Erase/write ans read functions with no particular struggle. Now I wa...

Implementing Interrupt driven Stream UART Rx Handling with STM32CubeMX drivers

Posted on January 09, 2018 at 17:38The original post was too long to process during our migration. Please click on the attachment to read the original post.

STM32 MCUs Products

Forum Posts

Resolved! GPIO pin analog voltage measurement

Hi, I'm using 32L152CDISCOVERY to generate PWM. I try to change the PWM from 78% -> 50% -> 78% -> 50% in loop.There is something wrong while generating PWM. If PWM is not changed on fly, the set value is OK. BR, Tomi

Sizeof(array) function

Bug Report : H743 HAL_I2C_Transmit_IT() respond incorrectly when it receives NAK.

Resolved! where can I find the register addresses for STM32L476RG?

STM32F469 CAN Rx Issues

Header files required for programming STM32F446 MCU in C

Resolved! Issues in changing baudrate of USART1 on the fly

ST32F7 Internal Flash INIT/READ/WRITE for application settings (KEIL)

Implementing Interrupt driven Stream UART Rx Handling with STM32CubeMX drivers

while i am trying to write data in flash memory da...

Two Serial ports with HAL_UARTEx_RxEventCallback d...

STM32H723 - SPI stop working randomnly

Issue with USB Virtual COM After SBSFU on STM32WB5...

Motor Driver

The LPBAM scenario fails to be created after the H...