PCM Hammer Release 021
- vwnut8392
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Re: PCM Hammer Release 021
was wondering if it is possible to use scanmatik 2 pro cable works with PCMhammer? it appears to be capable with the J2534 protocol. here's a link to it so you guys can check this cable out. https://scanmatik.pro/products/scanmatik-2-pro
- antus
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Re: PCM Hammer Release 021
Its not possible to say without trying it. Most J2534 tools work, but some are a bit glitchy or limited and do not. It says it does support J1850 VPW which is the needed protocol.
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
- vwnut8392
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Re: PCM Hammer Release 021
Here are logs from PCMhammer when i tried scanmatik SM2 pro.
- Attachments
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- PcmHammer_debugLog_20230430@012641 4x disable.txt
- (64.09 KiB) Downloaded 54 times
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- PcmHammer_userLog_20230430@012647 4x disable.txt
- (1.25 KiB) Downloaded 44 times
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- PcmHammer_userLog_20230430@012238.txt
- (1.21 KiB) Downloaded 46 times
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- PcmHammer_debugLog_20230430@012230.txt
- (5.42 KiB) Downloaded 45 times
- antus
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Re: PCM Hammer Release 021
It looks like it does not support VPW 4x mode. Everything looks good until the speed switches up, then there is no more response. So something is going wrong with the communications. Try unticking use 4x in the device settings page to run at 1x speed. It'll be 1/4 of the speed, but it might work.
After this point there is no more RX which means nothing is being received back. So either the device isnt able to transmit any more, or it cant listen at 4x. Likely both.
Code: Select all
[01:21:01:371] Attempting switch to VPW 4x
[01:21:01:377] TX: 6C FE F0 A0
[01:21:01:389] RX: 6C F0 10 E0 AA
[01:21:01:390] Parsing 6C F0 10 E0 AA
[01:21:01:395] Module 0x10 (engine controller) has agreed to enter high-speed mode.
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
- vwnut8392
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Re: PCM Hammer Release 021
i did try that. the logs are also posted above. they are labeled 4x disabled.antus wrote:It looks like it does not support VPW 4x mode. Everything looks good until the speed switches up, then there is no more response. So something is going wrong with the communications. Try unticking use 4x in the device settings page to run at 1x speed. It'll be 1/4 of the speed, but it might work.
After this point there is no more RX which means nothing is being received back. So either the device isnt able to transmit any more, or it cant listen at 4x. Likely both.Code: Select all
[01:21:01:371] Attempting switch to VPW 4x [01:21:01:377] TX: 6C FE F0 A0 [01:21:01:389] RX: 6C F0 10 E0 AA [01:21:01:390] Parsing 6C F0 10 E0 AA [01:21:01:395] Module 0x10 (engine controller) has agreed to enter high-speed mode.
Re: PCM Hammer Release 021
It can`t process longer messages. You can try sending smaller size to find what is the limit of the tool, It is capped at 13 bytes, you`d better request a firmware update, since the tool doesn`t fit the j2534 standard.vwnut8392 wrote: i did try that. the logs are also posted above. they are labeled 4x disabled.
- vwnut8392
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Re: PCM Hammer Release 021
not really sure how i would convey this to the people at scanmatik. any suggestions?kur4o wrote:It can`t process longer messages. You can try sending smaller size to find what is the limit of the tool, It is capped at 13 bytes, you`d better request a firmware update, since the tool doesn`t fit the j2534 standard.vwnut8392 wrote: i did try that. the logs are also posted above. they are labeled 4x disabled.
- antus
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Re: PCM Hammer Release 021
There isn't a way to set that as a configuration item You'd need to go full developer style and download the source code and change the limit built in to the app and recompile it.
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
Re: PCM Hammer Release 021
I agree it does not conform to the standard, and it does not support 4x.
I do not know the exact wording of the J2534 J1850VPW buffer size specification off the top of my head, but the specification size is: 4128 bytes.
So their VCI does not meet the J2534 J1850VPW specification, or even the J2534 specification which I believe is the same size.
If you have MS Visual Studio 2017/2019 installed (it's free), it's simple to build PCMHammer, just use the Kernels out of a release and copy them to the Apps\PcmHammer\bin\Debug directory, then reduce the MaxSendSize and MaxReceiveSize here: J2534 Packet sizing, build and test ... Wash and repeat until you find it's max capabilities.
It's probably not worth the hassle, or even wasting your time communicating with them ... They likely know, they likely don't care!
That is a lot of money for a non-compliant J2534 VCI ...
-Enjoy
I do not know the exact wording of the J2534 J1850VPW buffer size specification off the top of my head, but the specification size is: 4128 bytes.
So their VCI does not meet the J2534 J1850VPW specification, or even the J2534 specification which I believe is the same size.
If you have MS Visual Studio 2017/2019 installed (it's free), it's simple to build PCMHammer, just use the Kernels out of a release and copy them to the Apps\PcmHammer\bin\Debug directory, then reduce the MaxSendSize and MaxReceiveSize here: J2534 Packet sizing, build and test ... Wash and repeat until you find it's max capabilities.
It's probably not worth the hassle, or even wasting your time communicating with them ... They likely know, they likely don't care!
That is a lot of money for a non-compliant J2534 VCI ...
-Enjoy
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- antus
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Re: PCM Hammer Release 021
The J2534 2002 revision specification says in section 6.5.4:
Code: Select all
6.5.4 SAE J1850 10.4 KBPS VPW (Variable Pulse Width) - the following additional features of SAE J1850 must be supported by the pass-thru device for 10.4 kbps VPW:
a. High speed mode of 41.6 kbps
b. 4K block transfer
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396