Is it possible to overclock the baudrate from the mega to 230400 bps?
Is it possible to overclock the baudrate from the mega to 230400 bps?


Yes, setting that baud-rate is not a problem but this specific baud-rate may will give a high error rate. According to the AVR baud-rate calculation (UBRRn Settings for 16 Mhz system clock) the error is 8.5% (U2Xn=0) and -3.5% (U2Xn=1). 

Simply choosing 250000 bps will remove this error. 

Cheers!