Edgi_Talk_M55_USB_D CherryUSB Example Project

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Overview

This project integrates CherryUSB on the M55 core of the Edgi-Talk board. It is prepared for USB device mode and uses the Infineon DWC2 IP.

Default Configuration

RT_USING_CHERRYUSB = y
RT_CHERRYUSB_DEVICE = y
RT_CHERRYUSB_DEVICE_SPEED_HS = y
RT_CHERRYUSB_DEVICE_DWC2_INFINEON = y
Device template: CDC (user application)

Build and Flash

Build the project in RT-Thread Studio or with SCons.
Flash the firmware via KitProg3 (DAP).
Connect the Type-C USB port for device enumeration.

Configuration (Switching Modes)

Open RT-Thread Studio and go to:

RT-Thread Settings -> USB -> CherryUSB

Device mode: enable RT_CHERRYUSB_DEVICE, select device IP under CHERRYUSB_DEVICE_IP (default: RT_CHERRYUSB_DEVICE_DWC2_INFINEON).
Host mode: disable device mode, enable RT_CHERRYUSB_HOST, choose host IP and required class drivers (MSC/HID/CDC, etc.).
Device classes: enable class drivers and select a template under Select usb device template.

If an IP/class requires extra parameters, edit:

libraries/Common/board/ports/usb/usb_config.h

Startup Sequence

The M55 core depends on the M33 boot flow. Flash in this order:

+------------------+
|   Secure M33     |
|  (Secure Core)   |
+------------------+
          |
          v
+------------------+
|       M33        |
| (Non-Secure Core)|
+------------------+
          |
          v
+-------------------+
|       M55         |
| (Application Core)|
+-------------------+

Notes

This project targets the M55 core in USB device mode.
For host mode, see projects/Edgi_Talk_CherryUSB/Edgi_Talk_M55_USB_H/README.md.
For M33 device mode, see projects/Edgi_Talk_CherryUSB/Edgi_Talk_M33_USB_D/README.md.
If the M55 example does not run, flash Edgi_Talk_M33_Blink_LED first.

Enable CM55 in the M33 project:

RT-Thread Settings -> Hardware -> select SOC Multi Core Mode -> Enable CM55 Core

config