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NXP LPC17xx USB Secondary Bootloader

Petar Pan

Hi,

I'm using 'NXP LPC17xx USB Secondary Bootloader'.

I read the whole "AN10866.pdf" which commes together with the code on this link: ics.nxp.com/.../an10866.zip

I did everything as described in document and basically it works fine.
I can program my chip using this USB bootloader.

So where is the problem?
When I use more than 1572 bytes for global variables in my application then the program will not run normally. It halts. If I try then to program the chip over the JTAG with the same code (only I change the starting position from 0x2000->0x0000), then it runs normally.

Does anyone of you know the where could be the problem ?
Any hint what to change to make it work regardless to the number of global variables ?

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