The following is from Arduino 0022 at line 40 of HardwareSerial.cpp #if (RAMEND < 1000) #define RX_BUFFER_SIZE 32 #else #define RX_BUFFER_SIZE 128 #endif This will always use a buffer size of 128 since RAMEND is always over 1000. On an ATmega168P RAMEND is 0x4FF or 1279 decimal. Line 820 of i…

RAMEND bug in HardwareSerial.cpp?

fat16lib January 20, 2011, 8:55pm 6

Looks like the mod was done by Mark Sproul.

There is a comment about the atmega8535 so it could be for that processor.

Bug or not it would be nice to use a smaller buffer on processors with 1K of RAM.

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