diff --git a/src/tusb_option.h b/src/tusb_option.h index 679b80420..6d733a429 100644 --- a/src/tusb_option.h +++ b/src/tusb_option.h @@ -267,7 +267,7 @@ #define CFG_TUD_DWC2_DMA_ENABLE CFG_TUD_DWC2_DMA_ENABLE_DEFAULT #endif -// Enable CI_HS VBUS Charge +// Enable CI_HS VBUS Charge. Set this to 1 if the USB_VBUS pin is not connected to 5V VBUS (note: 3.3V is insufficient). #ifndef CFG_TUD_CI_HS_VBUS_CHARGE #ifndef CFG_TUD_CI_HS_VBUS_CHARGE_DEFAULT #define CFG_TUD_CI_HS_VBUS_CHARGE_DEFAULT 0