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Update suggested by Robert F-C. #289

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daid303 12 years ago
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  1. 2
      Marlin/MarlinSerial.h

2
Marlin/MarlinSerial.h
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@ -35,7 +35,7 @@
// These are macros to build serial port register names for the selected SERIAL_PORT (C preprocessor
// requires two levels of indirection to expand macro values properly)
#define SERIAL_REGNAME(registerbase,number,suffix) SERIAL_REGNAME_INTERNAL(registerbase,number,suffix)
#if defined(UBRRH)
#if SERIAL_PORT == 0 && !defined(UBRR0H)
#define SERIAL_REGNAME_INTERNAL(registerbase,number,suffix) registerbase##suffix
#else
#define SERIAL_REGNAME_INTERNAL(registerbase,number,suffix) registerbase##number##suffix

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