X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/deb181ae2c27db872c471a77e85d7190f32962c3..HEAD:/firmware/usbconfig.h

diff --git a/firmware/usbconfig.h b/firmware/usbconfig.h
index 203239eaa..090349011 100644
--- a/firmware/usbconfig.h
+++ b/firmware/usbconfig.h
@@ -21,7 +21,6 @@ the newest features and options.
 */
 
 /* ---------------------------- Hardware Config ---------------------------- */
-
 #define USB_CFG_IOPORTNAME      B
 /* This is the port where the USB bus is connected. When you configure it to
  * "B", the registers PORTB, PINB and DDRB will be used.
@@ -35,7 +34,11 @@ the newest features and options.
  * This may be any bit in the port. Please note that D+ must also be connected
  * to interrupt pin INT0!
  */
+#ifdef F_CPU
+#define USB_CFG_CLOCK_KHZ (F_CPU/1000)
+#else
 #define USB_CFG_CLOCK_KHZ 12000
+#endif
 /* Clock rate of the AVR in MHz. Legal values are 12000, 16000 or 16500.
  * The 16.5 MHz version of the code requires no crystal, it tolerates +/- 1%
  * deviation from the nominal frequency. All other rates require a precision