Ocean Optics NeoFox Engineering Note - Manual (Page 26)

NeoFox Communication Interfaces
26 013-20000-010-04-201211
Target
Baud
Actual
Baud
Relative
Error
Divisor
Latch
Multiply
Value
Divisor
Add Value
110 110 0.00% 6250 1 11
300 300 0.00% 2500 0 2
1200 1200 0.00% 625 0 2
2400 2400 0.00% 250 1 4
4800 4800 0.00% 125 1 4
9600 9603 0.03% 71 1 10
19200 19182 -0.10% 23 7 10
38400 38352 -0.12% 11 7 9
57600 57692 0.16% 13 0 2
115200 115385 0.16% 6 1 12
230400 230769 0.16% 3 1 12
460800 461538 0.16% 1 5 8
750000 750000 0.00% 1 0 2
A calculator is available at the following web address to help determine parameter values for baud rates that are
not listed in this table. You will need to use the value of 12,000,000 for the UART lock rate.
http://ics.nxp.com/support/documents/microcontrollers/xls/lpc2000.uart.baudrate.calculator.xls
RS232 Default Settings
Setting Value
Baud Rate: 57,600 baud (default)
Stop Bits: 1
Parity: None
Flow Control: None
Byte Order: Little endian
Integer Size: 4 bytes
Float Size: 4 bytes