problem s JTAG chainem

[Pavel KREJCI]

Aha :) koukam ze se to rozjelo v jinem vlakne. Tak jako bych nic nerek :)

2008/10/25 Jakub Ladman <ladmanj@volny.cz>:
> Tak v support foru jsem nasel toto:
> Q: Is there any JTAG [b:33ff96330d]Boundary-Scan [/b:33ff96330d]support for
> EP93xx processors? BSDL files, recommended Boundary-Scan tools, etc...
>
> A: There is no boundry scan for the EP9302. So you can't to read/write the
> external pins of the controller.
>
>  But you can use JTAG for debugging, it can send and execute instructions on
> the EP9302. You can use this to program FLASH, program a boot EEPROM, debug a
> boot loader or OS, etc..
> Read the section on JTAG in the "ARM920T Technical Reference Manual". Some
> free open source utilities are available to access the EP9302 via JTAG.
>
> To znamená že JTAG rozhraní nepodporuje funkci boundary scan - a proto asi
> take nedodavaji bsdl soubor. Ovsem ted jak je to alespon s tou delkou
> instrukcniho registru, doufam ze to bude ta ctyrka, protoze jinak nevim.
> Jina kapitola bude debugging sw, na to mam jiny hw - amontec jtag-key a ten
> mam vyzkousen jako funkcni s openocd a jedinnym cipem (LPC2294) ale opet tam
> budu resit eliminaci toho PHY a CPLD.
>
> Vyzkousim to az v praci.
> Tedy mozna to nevydrzim a sjedu si pro to do prace.
>
> Zatim vsem diky za pomoc.
>
> Jakub Ladman
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