VZ PIM

Disassembly, Reassembly, Tools and devleopment. Going deep with Hardware and Software.
jxx
Posts: 153
Joined: Tue Oct 25, 2011 7:47 pm
cars: To many
Location: Vic

Re: VZ PIM

Post by jxx »

Tried with the clip on with a gq-4x and an old willem but couldn't get a read.

Although didn't have it powered up and at the time didn't know the pinout,

Was a case of we need this thing out of the workshop and it won't run when I started looking into these, went with what worked once I figured it out and saw that familiar lil eeprom..
User avatar
The1
Posts: 4694
Joined: Mon Jan 04, 2010 10:23 am

Re: VZ PIM

Post by The1 »

i havn't had to power the pim up. i have gq-4x.

Yeh no time to stuff around in a workshop, great work doing all that!
jxx
Posts: 153
Joined: Tue Oct 25, 2011 7:47 pm
cars: To many
Location: Vic

Re: VZ PIM

Post by jxx »

Interesting, just tried a:
#92180 129, SW 280705D, HW 12, 2006
#92104 411, SW 070704B, HW 10, 2005
Couldn't read either on board, just FF FF (for s&g's tried powering up also with same result)
User avatar
The1
Posts: 4694
Joined: Mon Jan 04, 2010 10:23 am

Re: VZ PIM

Post by The1 »

Mines a 92189 621 sw 2811058 I think, I'll have to check but I think I used a generic profile to read the chip. Your connection maybe not good either it can be tricky.
jxx
Posts: 153
Joined: Tue Oct 25, 2011 7:47 pm
cars: To many
Location: Vic

Re: VZ PIM

Post by jxx »

Yeah, know those clips can be dicky.
Tried pushing, scrapping, clamping the chip and clip and even holding my tongue on funny angles to no avail.
jxx
Posts: 153
Joined: Tue Oct 25, 2011 7:47 pm
cars: To many
Location: Vic

Re: VZ PIM

Post by jxx »

Well that was fun, found 1 module that had different chip markings in the pile that were more useful.

The brains of the unit is a NEC µPD780828A 8-bit Single-Chip Microcontroller

NEC IRELEAND 780828AGCxxx which would appear to have an internal mask rom
NEC JAPAN D78F0828A(A) hoping is µPD78F0828AGC(A)-8BT with internal flash memory (the uncommon module).

http://pdf.datasheetcatalog.com/datashe ... 3960_1.pdf
Pin_conf2.jpg
Pin_conf2.jpg (101.7 KiB) Viewed 5018 times
User avatar
The1
Posts: 4694
Joined: Mon Jan 04, 2010 10:23 am

Re: VZ PIM

Post by The1 »

i havn't messed with PIMs much, the one i have here is dead so i need to get another one, not sure but BCM's you can get the pin code via the normal aldl table request for VR-VZ, will have to try with a pim and see what the tables contain. I havn't read about anyone trying yet.
jxx
Posts: 153
Joined: Tue Oct 25, 2011 7:47 pm
cars: To many
Location: Vic

Re: VZ PIM

Post by jxx »

Was wondering if it got the right query, if it'd spit out the prom address contents like it does for the vin, it can't be that easy......

Probably got a spare floating about I can send if you can't find one.

Dug out the olde NEC programmer trying to get something but no luck yet.
User avatar
The1
Posts: 4694
Joined: Mon Jan 04, 2010 10:23 am

Re: VZ PIM

Post by The1 »

if you fire up ose flashtool and configure it, dont need to connect, just goto tools, Listen to chatter and send aldl, tick auto calc checksum, paste the below in, F1 is for BCM on VR-VZ, i dont actually know what the Module ID the pim has on a ALDL bus(Tazzi may know?), the 01 on the end is the table number, there could be 20 tables who knows. Then you just send the command and see what reply comes back.

F1,57,01,01
jxx
Posts: 153
Joined: Tue Oct 25, 2011 7:47 pm
cars: To many
Location: Vic

Re: VZ PIM

Post by jxx »

I'll have a sniff when I get my hands on a vz, swore i'd never own an alloytec.... but for r&d purposes i guess they're cheap enough these days.

Get nothing out of the NEC programmer, looking at the data sheet need to do some harder yards (or simpler few wire fun) to access the rom/flash.

I must be a collector or insane, just ran through I have vl, vg, vn, vp, vr, vs, vt, vx and vy parked in the yard.. and multiple of some models... gawd help me..... do I really need a vz...... gotta catchem all right?
Post Reply