STM32 MCUs Embedded software

SPI Flash drive on USB MSC controller

I have a 4MB SPI Flash chip attached to an STM32F105 CPU that I would like to make into a Mass Storage Controller over USB. I made and built a Cube project.At first, I thought I had to modify the functions in user_diskio.c. This did nothing. I the...

in FreeRtos when the semaphore is created it becomes immediately available the osSemaphoreWait function so it is not blocking for the task waiting for the semaphore

CAN setup and filters using HAL

Hi, I have quite extencive experincu using CAN and J1939. In this project I am working on now I will impliment CAN signaling in a STM32F446. My questions:1.CAN_TxHeaderTypeDef.ExtId, shall be used with extended IDs. What will happen if .StdId is also...

I want to send data from my STM32F429 Nucleo-144 to my laptop with Ethernet communication protocol

I'm using eclipse IDE (system workbench).Where i get the demo application and how to build and run on target board ?How to configure IP on PC and target board ?

how to check usb cable is connected with many devices?

hello, i want to check usb cable is connected . below code is ok with one device which is used with stm32L4xx chip.​static int8_t CDC_Init_FS(void){ /* USER CODE BEGIN 3 */  //jeff: check the usb cable connect  if(hUsbDeviceFS.dev_state == USBD_STAT...

Can not configure the HAL_SPI_Receive() funciton to provide 8 clock cycles to the CLK pin.

Hi everyone.I'm working on NUCLEO-F303RE board to acquire mouse sensor displacament data to the MCU to be processed. Mouse sensor has an SPI interface which is 2 wires (CLK and SDIO). So i configured my SPI3 peripheral accordingly on CUBEMX and it wo...

Hello I have a question about echo server(using lwip socket).

What I want to do is create a TCP server that uses stm32f746-disco until the client sends a shutdown command.So, I created an echo server with lwip socket referring to the example, and when I close it, the connection with client ends.I think that if ...

Need USB Mass Storage device example code for STM32f4 - Discovery Board

Posted on February 10, 2017 at 09:19Hi All,I am evaluating the STM32f4 discovery board. I want to implement the USB mass storage functionality.I interfaced the SD card using the SDIO 1-bit mode.But, I want to share SD card's data in the PC use of US...

FreeRTOS: xSemaphoreGiveFromISR() not functional from ISR in STM32F746G-DISCO board

Hi, I see that xSemaphoreGiveFromISR() not functional from ISR in STM32F746G-DISCO board HAL_GPIO_TogglePin is working fine when it is called in ISR. But, xSemaphoreGiveFromISR is not working.Is there any STM32F746NG configuration is missing to make ...

Developing Using Chibios

Hi, Just got the ST Nucleo development tool with Chibios. Seems to have tons of information. Kind of overwhelming. Makes it difficult to zone in. I need a direction as to where to concentrate from both os and hal portion of development. I would like ...