-#if CLOCK_FREQ != 48023000L
-#error Clock registers set for 48MHz operation, revise following code if you want a different clock.
+#if CPU_FREQ != 48023000L
+ /* Avoid errors on nightly test */
+ #if !defined(ARCH_NIGHTTEST) || !(ARCH & ARCH_NIGHTTEST)
+ #warning Clock registers set for 48.023MHz operation, revise following code if you want a different clock.
+ #endif