Content originally posted in LPCWare by MikeSimmonds on Wed Mar 04 10:55:21 MST 2015
Basically, using the ISP commands in the Boot ROM (which is what FlashMagic uses) ONLY accepts
input on UART 0.
So you are stuck.
[Note: some 1700 have the possibilty of routing UART 0 tx and rx
to different physical pins e.g. the 1778/1788; The Boot ROM configures SPECIFIC pins. See the
appropriate user manual; Just a gotcha warning.]
However, if you write your own boot block you can, of course, select any UART, CAN etc. you want.
But you will have to write the complete code for that.
Search the forum with terms such as "secondary boot loader" or "bootloader" Etc.
Cheers, Mike