diff options
Diffstat (limited to 'LUFA/Drivers/USB/Core/XMEGA/USBController_XMEGA.h')
| -rw-r--r-- | LUFA/Drivers/USB/Core/XMEGA/USBController_XMEGA.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Core/XMEGA/USBController_XMEGA.h b/LUFA/Drivers/USB/Core/XMEGA/USBController_XMEGA.h index 0d39258af..2c3169758 100644 --- a/LUFA/Drivers/USB/Core/XMEGA/USBController_XMEGA.h +++ b/LUFA/Drivers/USB/Core/XMEGA/USBController_XMEGA.h @@ -94,6 +94,10 @@ #if !defined(F_USB) #error F_USB is not defined. You must define F_USB to the frequency of the unprescaled USB controller clock in your project makefile. #endif + + #if (F_USB % 6000000) + #error Invalid F_USB specified. F_USB must be a multiple of 6MHz for USB Low Speed operation, and a multiple of 48MHz for Full Speed operation. + #endif /* Public Interface - May be used in end-application: */ /* Macros: */ |