RGH 512 Jasper Nand Protection?

[stayinlow]

I am about to do a 512 Jasper when coolrunners are back in stock in the UK. I haven't done a big block before (neither jtag or rgh) and I'm sure I read ages ago about people saving to the onboard storage and it knackering their jtag.

I think that there was some kind of fix where you removed one of the blocks from the nand? Which made the onboard storage show up as unformatted or something, so nobody could save to it by accident.

Does anyone have any input on this, or can point me to some relevant info?


Thanks

 

[seanr28]

its not a big deal, you dont even need to patch the MU part of your nand, just read the first 64Mb

 

[stayinlow]

its not a big deal, you dont even need to patch the MU part of your nand, just read the first 64Mb

So it is safe? I just don't want to sell it then have bother if the customer saves to it by accident

 

[seanr28]

you wont be touching the MU area, so yes it will be fine.

 

[stayinlow]

you wont be touching the MU area, so yes it will be fine.

Ok thanks.

So does that mean the onboard storage will function as normal, or show as unformatted?

Sorry for all the questions, but as I said I've not done a big block before

 

[seanr28]

as long as its formatted before you start the nand dump process and you only read and write the first 64mb (and not the whole 512Mb) the MU will be fine

 

[stayinlow]

Thats great.

Thanks for the help

 

[Martin C]

You don't even need to format it TBH.

I've done about a dozen BB Jaspers with storage used. You're only supposed to be reading/writing to the 1st 64MB so the MU area it's affected in any way, shape or form.

 

[splatsters]

You don't even need to format it TBH.

I've done about a dozen BB Jaspers with storage used. You're only supposed to be reading/writing to the 1st 64MB so the MU area it's affected in any way, shape or form.

Nice one i've just sat here trying to dump the whole 256meg Of my first 256 Jtag done loads of 16meg ones

Thanks lads just saved me allot of time
Plus i've had 3 fails already when nearing the end of the 256meg dumps