RGH Noob question about 512 Jasper

[hodgie]

this is the first 512 mb Jasper i have had an opportunity to RGH/jtag.
My question is, when reading writing NAND, do i have to dump all 512mb? All the way to 07fff? im just curious, as it really takes a long time! LOL
i am using Jtag tool(most of the time). V3 nand-x, direct wire etc

 

[AnasMostafa]

when i reed my nand i used -r64

 

[mousey01]

AS stated above you need to read 64mb of the nand

 

[Martin C]

Yep, 64 is the magic number for 256/512MB NANDs.

 

[hodgie]

when i read the nand with jatg tool, I BELIEVE, it read all 512mb, maybe not. but it went all the way to 07fff. is that 64, or 512? lol, by my math thats around 512. this is why i asked!!
i could certainly be wrong though!!

 

[Martin C]

7FFF = 256
FFFF = 512

Use the custom commands in JTAG Tool or


Stop being lazy and do it at command line!!!!

 

[hodgie]

i have only used command line a few times. i am getting more comfortable with it. i dont know all the commands. im trying to learn!

thank you guys!

 

[frazzeld]

Here you go

read Nand: 256/512


NandPro usb: -r64 nand1.bin
NandPro usb: -r64 nand2.bin
NandPro usb: -r64 nand3.bin
NandPro usb: -r64 nand4.bin

 

[hodgie]

Thank you sir!
Am I wrong in assuming most all the commands I need are shown in the cmd window of jtag tool? I have done a few with command line as I really do want to know how.

 

[Martin C]

Only three switches you need:

-r16/64 - reads a NAND image to a file
-w16/64 - writes a file
+w16/64 - writes a file with ECC rebuild.

It's not that tough - -r / -w for normal read/write and +w for ONLY with .ecc file.

 

[hodgie]

Cool, thanks Martinc

 

[jeremy790]

I would agree with martin. Jtag tool has always screwed up something. But when I stopped being lazy and did it my self all reading and programing problems went away.