Philips LPC2101 - Set Baud Rate <Baud Rate> <Stop Bit; Unlock <Unlock Code

© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
User manual Rev. 01 — 12 January 2006 236
Philips Semiconductors
UM10161
Volume 1 Chapter 19: Flash memory
19.8.1 Unlock <unlock code>
19.8.2 Set Baud Rate <baud rate> <stop bit>
Read Part ID J Ta bl e 2 21
Read Boot code version K Tab le 2 23
Compare M <address1> <address2> <number of bytes> Ta bl e 2 24
Table 209: ISP command summary
ISP Command Usage Described in
Table 210: ISP Unlock command
Command U
Input Unlock code: 23130
10
Return Code CMD_SUCCESS |
INVALID_CODE |
PA RA M_ E RR OR
Description This command is used to unlock flash Write, Erase, and Go commands.
Example "U 23130<CR><LF>" unlocks the flash Write/Erase & Go commands.
Table 211: ISP Set Baud Rate command
Command B
Input Baud Rate: 9600 | 19200 | 38400 | 57600 | 115200 | 230400
Stop bit: 1 | 2
Return Code CMD_SUCCESS |
INVALID_BAUD_RATE |
INVALID_STOP_BIT |
PA RA M_ E RR OR
Description This command is used to change the baud rate. The new baud rate is effective
after the command handler sends the CMD_SUCCESS return code.
Example "B 57600 1<CR><LF>" sets the serial port to baud rate 57600 bps and 1 stop bit.
Table 212: Correlation between possible ISP baudrates and external crystal frequency (in
MHz)
ISP Baudrate vs.
External Crystal Frequency
9600 19200 38400 57600 115200 230400
10.0000 + + +
11.0592 + + +
12.2880 + + +
14.7456 ++++++
15.3600 +
18.4320 + + +
19.6608 + + +
24.5760 + + +
25.0000 + + +