Thanks for these informations. I make my own JTAG tool, so JTAG IDENT can be discard. > Warning regarding your JTAG method: > > According to Philips, JTAG may not work if boot sector is corrupted. > I looked at the the boot sector code, and the only thing that it does > on reset that is out of the ordinary is the following: > > // setup part ident > FMDEV[0] = 0xfff0ff22; > > // lock flash sectors > FMDEV[9] = 0xffffffff; > > I suspect if you dont setup part ident, then JTAG will not work, or > will not return the correct word for IDENT command and your JTAG > tools may refuse to talk to the part without a proper IDENT. > > Good luck! > > --- In lpc2000@yahoogroups.com, "kibobo59" <c45p3r@f...> wrote: > > I have disassembled this file: > > bootloader_update_ver_1_52_LPC_2104_2105_2106.hex > > > > within lpc2000_bl_update.zip. > > > > And I want to load in RAM (through JTAG) the code able to write in the > > last sector. >
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Re: My own boot loader! (Or others with some help ;-)
2005-12-15 by kibobo59
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