I use TopJTAG flash Programmer to read/write the flash.
The flash array data bus organization is 32bit (1 chip X 32), and the flash is cfi compliant.
I assume the flash are connected parrallel, flashchip 1 holds D0 until D15 and flashchip 2 holds D16 until D31.
The signal pins are connected according to the scheme below:
Flash Pin JTAG device PIN Active
CE W11/ cs0_n Low
OE U11/ rd_n Low
flash 1 - WE W12/ we0_n Low
flaSH 2 - WE Y17/ we0_n Low
A0 Y9 / a2
A1 W9 / a3
etc continue until A23 (notice the offset of 2 adress lines A0 and A1 are not used)
A23 AA1 / a25
The datalines are connected 1 on 1, so
D0 AB10/d0
continue
D31 AA20/d31
First flash #WE -W12 - i can read/write, CFI is OK
second flash #WE - Y17 - I can write, but I can erase it only fully, can not erase it partly,
because the programm writes - common flash interface (CFI) Compliant - NO
Screenshots are attached - "CFI-OK" is the first flash
"CFI-error" is the second flash
How To Solve That Problem?
P.S. processor is SH7785, two flashes are Spansion GL512L
Best Regards
what tool is jtag?gl512n all i have remove bga relfash.
Segger J-Link
anybody was reading this flashes by Jtag?
Last edited by eprst; 23rd April, 2016 at 03:22 PM.
Contact me on Skype,I have that working unit,so I can try and help you via JTAG.
TBH I never read it via JTAG.It is time to start now I guess
allcarsdiag (31st May, 2020)
Hello
through trial and errors
I recorded for 7785
Now we need to write v850
Can someone read it? is there a firmware v850?
Hello,
V850 chip is need to be programmed with the file D1_OS81050_FW_V01_10_07_CS_V02_01_11.ipf (attached)
from the firmware disk, but unfortunatelly i don't know how to do it.
Besides there are 2 files(attached): 'V850bolo' and 'V850app'. Does anybody know how to paste together these files?
Thanks in advance.
Best Regards
now many tool can read/write 70f3366
I have such tool. The problem is that i don't have a file for writing. Dump file is damaged.
did you read damaged dump from V850?
this is a dump
hbalazs (17th July, 2017)
Contains of your V850 dump is the same as from the update files
Yes, i see, but it doesn't work that way
Probably, these files should be paste together another way
Hi.
I've the same problem, I select the flash 1, choosing WE - W12/ we0_n Low and flash 1 program correctly, but when I try to program the flash 2, selecting WE - Y17/ we0_n Low, then I get this error message indicating that the flash is not CFI compliant. I see that you finally did it work, can you indicate me what I'm doing wrong, please?
Thanks in advance.
Old topic but .. i've compared your dump with the one from the firmware.
If i'm right the dump is from 8R0906961DQ (HNav_EU_K0257_6_D1) but it appears that after the V850bolo.bin there are something missing in your dump.
If you compare with V850app.bin you will see that in the dump the addresses from 0x00000000 till 0x000000bf (in the V850app.bin) are missing from your dump but they are in the V850app.bin
Could you share what tool did you used to read the V850 chip
Last edited by congobg; 4th October, 2016 at 01:15 PM.
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