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joeyddr
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« Reply #280 on: December 07, 2009, 03:25:47 PM » |
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better yet can a jdm programmer be used to program the pic? I have one of those built somewhere when i was programming my own wii yaosm chips.
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rolf2
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« Reply #281 on: December 07, 2009, 03:26:58 PM » |
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yes, i'm using jdm and winpic800
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cory1492
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« Reply #282 on: December 07, 2009, 03:27:28 PM » |
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How long does it take to Read a 256 or 512 MB NAND flash ( on Jasper M/B)?
I know for a 16 MB NAND it takes about 6 minutes with the USB programmer.
One of the fellows who tested for me said it's a bit over 2hrs on 512, closer to 15hrs with lpt; when I timed it, it was under 5 minutes for 16M and the data rate on any other will not be different... going with 5m/16M it works out to about 1h20m for 256 and 2h40m for 512. |
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joeyddr
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« Reply #283 on: December 07, 2009, 03:33:46 PM » |
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 This is what i have and i guess would have to modify a bit for the 18f chip? |
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MRA
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« Reply #284 on: December 07, 2009, 04:37:22 PM » |
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How long does it take to Read a 256 or 512 MB NAND flash ( on Jasper M/B)?
I know for a 16 MB NAND it takes about 6 minutes with the USB programmer.
Yes, it takes about 90 minutes for 256MB. |
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MotoMax
Newbie
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« Reply #285 on: December 07, 2009, 11:58:12 PM » |
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Is there a typo in this schematic? PIC pin 24 resistor... says 10k should it be 100 ohms?  You can connect pin 17 to ground (jumper in Sandugas his image) and it should be recognised by windows as the bootloader, then you can reprogram it. If you have a very old version of the bootloader it could be a problem if i remember correctly....again is mentioned in this thread. |
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ColtB45
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« Reply #286 on: December 08, 2009, 12:22:11 AM » |
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Pin 26 (not 24) shows a 10K resistor to common ground. That's correct and not a typo. Is there a typo in this schematic? PIC pin 24 resistor... says 10k should it be 100 ohms? |
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MotoMax
Newbie
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« Reply #287 on: December 08, 2009, 01:25:43 AM » |
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You are right it was pin 26 I was looking at. Its just that I ordered the parts from the first post and only one 10k resister is listed so I though it was a typo. But I guess this is a different design that uses two 10k resisters.
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sandungas
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« Reply #288 on: December 08, 2009, 01:46:19 AM » |
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The 10K resistor in pic leg 26--->GND is to avoid the pic enter in lvp mode randomly
Is only needed if you program the pic with ldv (the diagram i did is intended to be used with ART2003, and ART2003 works in ldv)
If the pic is not programmed in ldv... you need to replace this resistor with a wire
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« Last Edit: December 08, 2009, 02:09:37 AM by sandungas »
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rolf2
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« Reply #289 on: December 08, 2009, 01:49:33 AM » |
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if lvp is off - rb5 can be used as I/O and you don't need any resistor or wire there ...
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sandungas
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« Reply #290 on: December 08, 2009, 02:09:17 AM » |
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if lvp is off - rb5 can be used as I/O and you don't need any resistor or wire there ... I was trying to find in the message where somebody commented to join leg 26 with ground with a wire But it was just a suggestion to solve a concrete problem, probably cant be applyed to all cases, i will strike what i said to avoid confussion Btw... This message is when the bootloader was changed (this page and previous has some messages related of why the bootloader was changed, and why is there the 10K resistor) http://www.xboxhacker.net/index.php?topic=12306.msg82995#msg82995http://www.xboxhacker.net/index.php?topic=12306.msg83017#msg83017 |
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« Last Edit: December 09, 2009, 06:04:48 PM by sandungas »
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sergiyua
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« Reply #291 on: December 08, 2009, 01:00:36 PM » |
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Hi guys!
I have a Jasper 512 mb, remained still readable on the same LPT Computers read from the curve configuration flash, the other everything is OK, but LPT very long ago abolished and decided to make a USB, but something happened now define the image could not be flash config, all wires inspect everything is ok, that might be? Maybe that box is locked software?
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MRA
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« Reply #292 on: December 08, 2009, 01:52:51 PM » |
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Sorry but I donīt understand one word...
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joeyddr
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« Reply #293 on: December 08, 2009, 02:46:22 PM » |
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in this pic  you have a 220uF cap and not sure what the resistor is.... but this one  it says 47uF cap and it has a 220 resistor... which one should i follow? |
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MotoMax
Newbie
Posts: 7
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« Reply #294 on: December 08, 2009, 03:16:23 PM » |
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Are you saying you get incorrect FlashConfig when you try to read the nand with your USB flasher? Hi guys!
I have a Jasper 512 mb, remained still readable on the same LPT Computers read from the curve configuration flash, the other everything is OK, but LPT very long ago abolished and decided to make a USB, but something happened now define the image could not be flash config, all wires inspect everything is ok, that might be? Maybe that box is locked software?
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joeyddr
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« Reply #295 on: December 08, 2009, 05:39:58 PM » |
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Nice! Especially that you are releasing the sources!  I was just getting in touch with the SPI protocol and today I etched a board for an Atmega8 to use it as an SPI flasher. It took me a few days to get some stuff that works for sniffing the NandPro protocol... And I'm just able to get the flashconfig. At least sometimes... I think my cables are too long. My own board isn't finished yet, so I hooked up an STK500. Several things I tried for sniffing: 1) The Logic Analyzer I used for sniffing didn't have a protocol analyzer and counting clock cycles was boring and just sucked  2) Using an AVR to sniff the SPI stuff "on the wires" didn't work out... Perhaps too fast. 3) MS Detours for hooking the DLL calls to DLPortIO didn't work, too. 4) Then I created my own DLPortIO.dll, loaded the real DLPortIO.dll and delegated the calls of NandPro to the real ones and logged everything. That worked finally. Oh and a whole bunch of diasassembling-fun of NandPro At least I learned very much doing all this stuff. I think that the SPI protocol that is used for reading/deleting/writing is the same as in lflash, right? I haven't looked at it, as I'm not yet able to read the flashconfig reliably :-/ http://free60.git.sourceforge.net/git/gitweb.cgi?p=free60/tools;a=blob_plain;f=lflash/lflash.c;hb=HEADHow did you find out the protocol? were you able to get the atmega8 to work? |
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sandungas
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« Reply #296 on: December 08, 2009, 05:58:42 PM » |
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it says 47uF cap and it has a 220 resistor... which one should i follow?
Please, dont use my photo of the ART2003 programmer to make the wiring, is really $#!tty, i just uploaded it to show a (shame) example of an easy way to "build" it ...i moved the capacitor to the middle of the wires... i joined all grounds in pins 18-25 of the DB25... and tryed different capacitors <---- al this had no result, the problem was the LPT
I did some modifications to the ART2003 programmer, because i was having random conections/disconnections of the PIC device (inside winpic800) but was my mistake, none of this changes had effect My connections problems was caused by my LPT bios settings (finally it worked with another pc) |
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iLLNESS
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« Reply #297 on: December 09, 2009, 05:24:01 PM » |
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awesome. after almost killing my 512mb jasper last night i found out about v3b plus2! so ive got an arcade with 512mb and jasper board. i forgot about no writing with 3b and thought i fried my 360. anyways, for anyone just jumping in.. the best thing for now for large block nands (256/512) is from cory @ http://www.xboxhacker.net/index.php?topic=12306.msg89624#msg89624 in this topic. use the 3b plus2 binary to flash your boot with your favored programmer. use the provided drivers in nandpro2b to install the device. grab the picflash program from the FIRST post in this thread. flash the flash file from the v3b plus2 to your usb device. and lastly, use corys modified drivers from the post i just linked. thanks for all the info in the site guys! and thanks to the peeps on #free60/efnet who reminded me to use lpt cuz my usb programmer was nfg |
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jhonnyp0lak
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« Reply #298 on: December 09, 2009, 09:34:19 PM » |
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iLLNESS, i got my device working last night aswell, lots of soldering, especially that i had to make my own art2003 programmer. (Sandungas thank you for the diagrams - it made the whole job 100 times easier - although as you mentioned your soldering pic is incomplete in places (e.g. the pin 8 and 19 aren't soldered together), but the technical diagram was spot on, so i used that  Anyways, I'm going to use this updated driver seems like the way to go, coz i just got a 512mb jasper. I just have 1 question. If we use these 512mb driver/pic flash combo, can we still use it on 16mb machines ? or do we need to reflash the PIC again with older code ? |
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iLLNESS
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« Reply #299 on: December 09, 2009, 09:40:09 PM » |
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iLLNESS, i got my device working last night aswell, lots of soldering, especially that i had to make my own art2003 programmer. (Sandungas thank you for the diagrams - it made the whole job 100 times easier - although as you mentioned your soldering pic is incomplete in places (e.g. the pin 8 and 19 aren't soldered together), but the technical diagram was spot on, so i used that Anyways, I'm going to use this updated driver seems like the way to go, coz i just got a 512mb jasper. I just have 1 question. If we use these 512mb driver/pic flash combo, can we still use it on 16mb machines ? or do we need to reflash the PIC again with older code ? i dont see why we couldnt use it. its just an updated version (unofficial) of the regular one. i dont think the 16mb nand support was removed. |
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