MouChiaHung / STM32F4

STM32 as USB device using WINUSB.

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STM32F4

Work with WINUSB as an USB CDC Device.

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USB can transmit loop back message which is more than 64 bytes (firstly sent to ENDPOINT as DATAOUT then transmitted to HOST as DATAIN).

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Reference:

1.This book "The Definitive Guide to ARM Cortex-M0 and Cortex-M0+ Processors" can offer general cortex knowledge.

https://www.sciencedirect.com/book/9780128032770/the-definitive-guide-to-arm-cortex-m0-and-cortex-m0-and-processors

2.This youtube video is an official STM32 tutorial video explaining how to have a skeleton of this project using Keil and CobeMX. 

https://youtu.be/h9T0RTu9Muc

3.This blog is an independent developer explaining how to modify your Keil project and in order to use winusb.sys as your STM32 board's device driver, he uses STMStudio and I read it and port it into my Keil project.

https://damogranlabs.com/2018/02/stm32-usb-cdc/

4.Microsoft doc explains how to use their WINUSB API to have applications communicate with an "winusb" device (a device recognized by WINDOWS as a device using winusb.sys as your STM32) board's device driver).

https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/winusb

https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/using-winusb-api-to-communicate-with-a-usb-device

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STM32 as USB device using WINUSB.


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