张小哥

Single chip CH552 / CH554 AVR ISP ultra-low price

 
Overview

CH554 USB AVR-ISP / Arduino as ISP

This project uses  https://github.com/rikka0w0/CH55x_USB_CDC (this part uses the MIT protocol) as the underlying template to create and implement a USB virtual serial port, and combines it with  https://github.com/DT9025A/STC8G-AVRISP (the Part of the AVR-ISP project using BSD protocol) implements a virtual USB AVR-ISP download tool based on CH554, with a default baud rate of 19200

 

Open source address

https://gitee.com/createskyblue/Ch554-AVR-ISP

https://github.com/createskyblue/Ch554-AVR-ISP

 

 

Customize USB virtual serial port device name

Please modify ./usb_string_desc.c

And in order to correctly display the customized serial port name in the device manager, please use Zadig software to replace the driver with USB Serial (CDC)

 

Modify the default baud rate

参考设计图片
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Update:2025-07-17 14:34:50

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