[SI-LIST] Re: Flash with JTAG ISP

Hello Siva,
Yes, that's right. The FLASH itself does not need
to have 1149.1 (jtag), just a component that has 1149.1
connected to it.  FLASH programming times through
EXTEST based 1149.1 are very much dependent on the type of FLASH,
the length of the scan-chains and the TCK frequency.  
The basic technique is described here:
http://www.intellitech.com/products/eclipseboundaryscanflash.asp.
There is a new method as well if you need to program rapidly. You can read a
backgrounder on various FLASH programming techniques
here:  http:/www.intellitech.com/products/fac.asp

Regards,
CJ


--------------------< Http://www.intellitech.com >----------------
Intellitech Corporation                        
70 Main Street, Durham, NH 03824            Embedded Test and 
PH:603-868-7116 FX:603-868-7119            FPGA configuration
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> -----Original Message-----
> From: Dimiter Popoff [mailto:dimiter.popoff@xxxxxxxxxxx]
> Sent: Tuesday, June 03, 2003 9:03 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Flash with JTAG ISP
> 
> 
> Siva,
> 
> >    I am searching for a FLASH device with JTAG as an
> > ISP option. Could anybody give me some links to
> > manufactuer or component sites?
> 
> I am not aware of directly JTAG programmable FLASH devices;
> my solution was to program the FLASH by JTAG driving the
> respective CPU lines (the first time after soldering, at least;
> after that obviously there are other options).
> 
> Dimiter
> 
> --------------------------------------------------------------------
> Dimiter Popoff
> Transgalactic Instruments
> http://transgalactic.freeyellow.com
> 
> 
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