#define ENABLE_XPROG_PROTOCOL
#endif
#endif
+
+ #if defined(USB_SERIES_4_AVR) && ((VTARGET_ADC_CHANNEL == 2) || (VTARGET_ADC_CHANNEL == 3))
+ #error The U4 AVR chips do not contain ADC channels 2 or 3. Please change VTARGET_ADC_CHANNEL or define NO_VTARGET_DETECT in the makefile.
+ #endif
/* Macros: */
#if !defined(__DOXYGEN__)