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openwch / arduino_core_ch32

Core library for CH32duino
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Does the CH32V203 USB support CDC profiles, I want to emulate as a serial port. #37

Closed hacktronics closed 3 months ago

hacktronics commented 9 months ago

Does the CH32V203 USB support CDC profiles, I want to emulate as a serial port. Is there any example for the same. How can I connect to my computer the CH32V203 and exchange sensor readings.

0x0fe commented 9 months ago

you havea CDC device profile example in the sdk, obviously not in this arduino core. You can run the SDK example in an arduino project.

hacktronics commented 9 months ago

Sorry for this but did you meant this: https://github.com/openwch/ch32v20x/blob/main/EVT/EXAM/USB/USBD/SimulateCDC/User/UART/UART.c How to run this SDK example in Arduino.

0x0fe commented 9 months ago

yes sure, well to run it in arduino you just have to integrate this into your project. Or make a library with it? I would not advise to try porting this to CPP, there is zero advantage and a large code ize penalty. Keep it in C and declare the calls you need to make from CPP as extern C

hacktronics commented 9 months ago

tried copying the USBLib to Arduino, but unfortunately its doesn't work and there are lot of things, which are beyond my understanding.

hacktronics commented 9 months ago

In mounriver, I was able to emulate a serial port, but didn't understand what the program does. THere is no docs or comments. Is there any sample that just create a serial port, and have interrupt on data receive, even in core sdk.

TianpeiLee commented 3 months ago

I will consider adapting the USB characteristics of the chip later. If I have enough time, I plan to abstract a USB layer to be compatible with all chips or provide library files for independent chips.