ASCII Terminal Testing of the LPC2xxx MPU ISP MODE
Auto-Baud StartUp HandShake Sequence
Note: This info is just provided for those that might wish to gain an understanding of the LPC2xxx ISP commands
using a terminal program. FlashMagic (described elsewhere) should be used for programming the MPU program memory.
- Enter ISP mode by holding GPIO port 0 pin 14 low whilst a Reset/Startup sequence is completed.
- The auto-baud sequence is started by sending the "?" character from the RealTerm screen at 38,400 Baud 8N1.
- The LPC2xxx device should reply with "Synchronized<CR><LF>".
- The host must then reply with "Synchronized<CR><LF>".
- The LPC2xxx device should reply with "OK<CR><LF>".
- The host must then send the crystal frequency in KHz "19660<CR><LF>".
- The LPC2xxx device should reply with "OK<CR><LF>".
- The host may then identify the particular processor by sending "J<CR><LF>".
- The LPC2xxx device should acknowledge the command as valid with "0<CR><LF>".
- An LPC2103 device should then identify itself with ID code "327441<CR><LF>".
- Similarly the device should respond to other commands as described in the users manual.
