Tech Support > Computer Hardware > Microprocessors > How to learn to program parallel flash?
How to learn to program parallel flash?
Posted by blisca on May 16th, 2008


Hi,to all

i have built a kind of...thing with the purpose to program a Flash memory
from PC parallel via a CPLD

The Cpld i used is a Xilinx xc95144 and the flash that i got scraped from
surplus(maybe a dvd) is HY29LV160

http://www.hynix.com/inc/pdfDownload.../HY29LV160.pdf

I did the programming software in visual basic,and it looks that i can read
correctly the Flash,at least i can read ascii strings and so on

Well,i can't understand this stuff about unlock cycles,unlock bypass and so
on

what is ,for example a "command"?What is that makes it distinguishible from
a data or an address?

In few words,can anybody reccomand me a link explaining in a more newbie
fashion way how to treat with such devices(28F family included)?

Many thanks to you all

Have a nice weekend
Diego
Milan, Italy



listen to my experiment to transpose an old Dire Straits's hit in salsa at
www.myspace.com/blisca


Posted by Jim Stewart on May 16th, 2008


blisca wrote:
Commands are nothing more than defined writes to the
part. Give it the correct sequence of writes with
the specified data to the specified addresses and the
chip will erase itself for example.

Don't have anything for you. I've always used the
SST parts and their datasheets without much trouble.

Posted by blisca on May 16th, 2008



"Jim Stewart" <jstewart@jkmicro.com> ha scritto nel messaggio
news:v5idnXCba7doTLDVnZ2dnUVZ_gGdnZ2d@omsoft.com.. .




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