1# Note 2 3## Support Chip List 4 5### BouffaloLab 6 7- BouffaloLab BL616/BL808 8 9### HPMicro 10 11- HPM all series 12 13### AllwinnerTech 14 15- F133 16 17### Nuvoton 18 19- Nuvoton all series 20 21## Before Use 22 23Your should implement `usb_hc_low_level_init`. 24- Enable USB PHY、USB clock and set USB clock for 48M. 25- Enable usb irq 26- Config EHCI BASE and other macros in `cherryusb_config_tempate.h`