STM32F407-program-to-extract-and-store-data-from-STM32F103-board

This project extracts and stores data from an STM32F103 board connected to an STM32F407 board via USB. The program uses the STM32F407 board as the USB host to read data from the STM32F103 board and store it in a file on a USB flash drive.

Table of Contents

Overview Hardware Required Software Required Setup Instructions Usage References

Overview

This project extracts and stores data from an STM32F103 board connected to an STM32F407 board via USB. The program uses the STM32F407 board as the USB host to read data from the STM32F103 board and store it in a file on a USB flash drive. The program can also write data to the STM32F103 board.

Hardware Required

STM32F407 board STM32F103 board USB cable USB flash drive Software Required STM32CubeIDE FatFs library USB Host library Setup Instructions Connect the STM32F407 board to the STM32F103 board via USB. Connect a USB flash drive to the STM32F407 board. Open the project in STM32CubeIDE. Build and flash the code onto the STM32F407 board.

Usage

Press the button on the STM32F407 board or enter a correct password to read data from the STM32F103 board and store it in a file on the USB flash drive. The program can also write data to the STM32F103 board. The LEDs on the STM32F407 board indicate the status of the USB communication.

Functions

UsbTest_Write() This function writes data to the STM32F103 board using UART communication. It returns a boolean value that indicates whether the write operation was successful or not.

UsbTest_Read() This function reads data from the STM32F103 board using a USB connection and writes it to a file on an external USB storage device. It returns a boolean value that indicates whether the read operation was successful or not.

Variables myUsbFatFS This variable is of the FATFS type and represents the file system on the external USB storage device.

USBHPath This variable is a character array that represents the logical path of the USB storage device.

myFile This variable is of the FIL type and represents the file that data is written to on the USB storage device.

res This variable is of the FRESULT type and represents the result of a file system operation.

byteswritten This variable is of the UINT type and represents the number of bytes that were written to a file.

bytesread This variable is of the UINT type and represents the number of bytes that were read from a file.

rxIMU This variable is a byte array that represents the data that is read from the STM32F103 board.

usb_buffer This variable is a character array that represents the data that is written to the USB storage device.

wifi_code This variable is a character array that represents the code that is written to the STM32F103 board using UART communication.

write_flag This variable is a boolean that is set to true when data is written to the STM32F103 board using UART communication.

byte_check This variable is a boolean that is set to true when data is read from the STM32F103 board using a USB connection.

read_flag This variable is a boolean that is set to true when data is successfully read from the STM32F103 board and written to the USB storage device.

pass_correct This variable is a boolean that is set to true when the correct password is entered.

file_name This variable is a character array that represents the name of the file that data is written

References

STM32F407 Datasheet STM32F103 Datasheet FatFs Documentation USB Host Library