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| author | Cristian Maglie <c.maglie@bug.st> | 2014-10-21 17:47:59 +0200 |
|---|---|---|
| committer | Cristian Maglie <c.maglie@bug.st> | 2014-10-21 17:47:59 +0200 |
| commit | 0f7a0ec4ed6fc294c2e7fe4c90faca4a56ecafc8 (patch) | |
| tree | edeba4706c2bb415cfa608313a2d831e35750a1b /cores/arduino/HardwareSerial.h | |
| parent | 5e2b7aa87674433c173e6de44a5ad47ea0410097 (diff) | |
| parent | 02f5b999581287001fb83f5304c06a3d144b3b42 (diff) | |
Merge branch 'master' into ide-1.5.x
Conflicts:
hardware/arduino/cores/arduino/HardwareSerial.cpp
hardware/arduino/cores/robot/Arduino.h
Diffstat (limited to 'cores/arduino/HardwareSerial.h')
| -rw-r--r-- | cores/arduino/HardwareSerial.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/cores/arduino/HardwareSerial.h b/cores/arduino/HardwareSerial.h index 935934b..7dc2aa9 100644 --- a/cores/arduino/HardwareSerial.h +++ b/cores/arduino/HardwareSerial.h @@ -32,6 +32,8 @@ // using a ring buffer (I think), in which head is the index of the location // to which to write the next incoming character and tail is the index of the // location from which to read. +// NOTE: a "power of 2" buffer size is reccomended to dramatically +// optimize all the modulo operations for ring buffers. #if !(defined(SERIAL_TX_BUFFER_SIZE) && defined(SERIAL_RX_BUFFER_SIZE)) #if (RAMEND < 1000) #define SERIAL_TX_BUFFER_SIZE 16 |