godiag nano with pcmhammer

[antus]

Send them a link to the pcmhammer download on github and the bench wiring here viewtopic.php?f=42&t=6080&start=220#p92153 and tell them to try and read and write a GM service number 12210411 PCM (or one of the other supported units).

[Gampy]

Personally, I do not like Sloppy's harness write up, it's inconsistent and confusing between write up and pin out. Also it doesn't mention the need for a switch (in this case they won't need it).

That is why I always point to this clear and concise Bench Harness Schematic

@99zguy,
That VCI should have a J2534 Configuration Tool (manager), enable J2534 0404 API logging, do a read attempt, post the log.

Also, hope you get more out of them then I did, all I got was 'we do not provide that type of information' when I asked for J2534 transmit and receive buffer sizes ...
They also stated 'If you want to work with our device, maybe you can buy the VCI and test with your software directly'

Of course I initially told them we have already tested and what it's failures were ... So I now have little hope for them!

-Enjoy

[99zguy]

I have sent them information regarding link to latest version of pcmhammer. Also the bench harness schematic that you linked to Gampy as well as the version that I am using that does have pwr and ign switches built into it. So far it seem that whomever is getting my messages and replying is doing so quickly and does seem to want to work this out. They have already stated that they tested with pcmhammer and found that my finding that I sent to them were correct and it currently does not support the pcmhammer software. They also stated that they are currently working on debugging it now but could take some time. I responded requesting more information if they will supply it regarding the tx and rx buffer sizes for the J2534. Of note they did say that they currently do not support 4x however they appreciated the suggestion to make that work and will upgrade that portion. Odd being that they advertise that it does support 4x. Another note is that they offered a full refund on this device with return and requested my information to record so that they can "send me out a new item for testing once the driver upgrade is complete" and no cost to me for my time in the matter. Not sure how to take that as to if they are really going to work on this product to make it work or just talking the talk. Either way, I am going to keep this one and look at it further as it does work with other software programs. I guess we will see what the respond with to the latest email to see if they are for real or just talking the talk.

[Gampy]

That is good to hear ...

At that point they did not know I was a customer, communication is slow (24hrs), I'm obviously not talking to a technical person ... so I'll give them that.

I'm glad they admitted they are false advertising and do not support J1850VPW 4x ... That is a huge statement to me, they admitted it, that's the first step to recovery.

Hopefully they have the memory on board already for larger buffers ... After that I suspect it's just firmware issues.

-Enjoy

[99zguy]

Well I did receive a respond with some details. Here is the reply regarding buffer sizes and configuration tools:

1. The J2534 transmit and receive buffer sizes.
Depending on the communication protocol, the buffer size varies.
VPW: RX-250, TX-250
PWM: RX-13, TX-12
ISO9141: RX-260, TX-260
ISO14230: RX-260, TX-260
ISO15765: RX-4100, TX-4100
2. Configuration tools
In order to ensure that our products remain in stable working condition and to extend their service life, we have not included a configuration tool with this product. We have sent your questions back to our engineers. If this section is updated, we will keep you informed.
Thank you very much for your understanding and support, it means a lot to us. And again, we are so sorry that we have not been able to provide you with valuable help for the time being. We will send you our latest products as soon as we have finished testing the equipment. Please stay tuned for the next item!

[Gampy]

Well you definitely got more then I ...

My response to their response of "We do not provide that information, You should buy our device and test blah blah"

Is this what you want ??: Order number: #G......

PCMHammer Github repository: https://github.com/LegacyNsfw/PcmHacks
Curent version in Zipfile: https://github.com/LegacyNsfw/PcmHacks/ ... mer021.zip

We already know it doesn't work ...

1. It fails to shift to J1850VPW 4x when requested.
2. It refuses large J1850VPW frames, j2534 J1850 compliance is 4128 bytes.

We would really like to work with GODIAG to get these issues resolved ...

Thank you

Their response,

If you have tested and it failed to use with our device, I think maybe our device just can't support the function you need

Intelligence at it's finest ... Thieves and don't care.
My gawd they PUSH that it's J1850VPW 4x Compatiable! It's a damn marketed selling point!

Obviously a peeve of mine, false advertising infuriates me ... Bold dupers for profit!

So any ways, 238 bytes at 1x may work, we're talking nearly a half hour to read a 1m PCM.

Seeing how ISO15765 gets 4100 bytes, maybe they can fix it ... I have zero faith though!

-Enjoy

[99zguy]

I am on same page as you with false advertising being a pet peeve of mine as well. Infuriates me to no end. Just be honest and say what it can do. Not what it might do but not set up for crying out loud!

I was thinking the same as it seems that they have 4100 bytes already in use. Maybe they will fix this as they stated... but I too have little faith, even though they did give some info on it and offered to send latest product once finished testing.

They for sure do not want to give out any type of configuration tool and would completely surprise me if they offered some sort of way to actually update any firmware or anything. More than likely (based on their offer to sent out a new product) they will just update what they need to, test it in house and then resell the same item with some sort of revision or minor name change and charge more of course.

So at this point unless using it at 238 bytes at 1x and taking that much time is worth it for the low price point, it looks like this specific version may be dead for our use until it is updated.... if of course that ever even happens. Not holding my breath on this. Will have to move on to another option.

[Gampy]

I am not going to add a tool list and configuration for each JTool so it is likely going to stay unsupported unless they fix it ...

Not even sure if there is a way we would be able to identify that unit through J2534 so we could configure just for it anyways.

What a bum deal, that would be a sweet deal for J2534, but you're probably right, they'll fix it and sell it for more.

-Enjoy

[99zguy]

@Gampy When you say identify the unit thru J2534, are you referencing when you select the tool in the software? If so, it currently shows as a J2534 device selection in the dropdown using the provided J2534 driver that came directly from godiag. Maybe I did not understand what you are stating there. However, listing it as being supported would likely need to wait until when or even if they fix it to fully work on 4x unless we can for sure get it to work in stable in 1x even if it will be much slower.

[Gampy]

Yes, we can identify it from the registry ... Where the name in the PCM Hammer J2534 dropdown list comes from.

What does it call it's self in the selection list in PCM Hammers J2534 dropdown ??
Some spoof their name so telling could get difficult. It is just a registry setting though ...

But I'm talking about directly from the tool itself through J2534, I just don't know if there is that ability.

I consider it supported if it works cleanly (ie. is stable), even if slow!

-Enjoy