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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 |