Lpc2000

>>  1. Sure, but JTAG is used (as standard) for testing only (with commands
>>  BYPASS, IDCODE, EXTEST etc.).
>>  2. I asked about Flash memory programming - not using SRAM as a program
>>  memory.
>>  3. If you want to load some code to SRAM memory you should use special
>>  commands (codes) for switching TAP into "SRAM load mode" (name
>> of this mode
>>  is my own, it is not possible to find them in official docs ;-)).
>
> It is al fairly well documented.
>
> You need the information from the IEEE in order to be able to use the TAP
> controller, I guess you do know a bit about this since you are mentioning
> the TAP commands.
> The ARM 7TDMI-S Technical Reference manual DDI0234 (see
> http://www.arm.com/pdfs/DDI0234A_7TDMIS_R4.pdf) contains a full section on
> the Embedded ICE macro cell, that is the block used to communicate with
> the ARM7 core - it not only describes the contents of the scan chains but
> also what to do with it (how to read/write registers, how to read/write
> memory, how to run/single step, how to place breakpoints)
> Furthermore the LPC user manuals (e.g.
> http://www.semiconductors.philips.com/acrobat/usermanuals/UM_LPC2106_2105_2104_1.pdf)
> contains a chapter on ISP and IAP, it even describes that IAP can be used
> for JTAG Flash programming. I already spent a few words on this in another
> post (http://groups.yahoo.com/group/lpc2000/message/9776).
>
> Philips chose for flash programming through their bootrom IAP code using
> all generic mechanisms that are there. This means that you are able to do
> this using any JTAG debugger that is able to do some scripting (load data,
> load registers and execute code).
> It is not secret, but since Philips uses IAP programming combined with the
> standard ARM7 Embedded ICE you need the documentation on that part also.
>
> Just select your ARM7 TDMI-S JTAG debugger probe of your choice and use
> their software interface (some of the probes come with a DLL to control
> the ARM code from your own software).
> Don't need to worry to much about JTAG  stuff yourself in this way.

OK, I'll read all these docs once more. Thanks!
Piotr