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4ttl

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  1. CAN Keypad with 2x PDMS

    in Razor PDM

    Posted

    Id like to say its just the high outputs but nothing ive seen makes me think its only those that are playing up. The car has another major issue so time isnt as tight as it was last week. 
     

    i think a more knowledgeable head on the problem will be the next stage. 

  2. CAN Keypad with 2x PDMS

    in Razor PDM

    Posted

    Okay… progress. Sort of. 
     

    Now because i have 2 pdms i might be doubling the drama, but fhats where i am now. 
     

    I am seeing outputs drop on 1 pdm when the other sees a change in load. Fan switching on the front causes. The rear to fail, although I dont see any events in the logging. A gear pump started on the second pdm causes an auxiliary that is powering the e throttle to fail. 
     

    It doesnt appear to be just current causing this dropout as i can manual switch the outputs without affecting the rest of the system. Inducing a manual pwm output seems to cause the most disruption. 
     

    help?

  3. CAN Keypad with 2x PDMS

    in Razor PDM

    Posted

    Dropped the tx on one pdm and the led disco of death is gone. 1 problem down. 
     
    I noticed that the software/pdms are not happy to be setup together, they cross-polinate settings at random including layouts

    Secondly, the pdm will not connect if the ecu is also attached. Full course of restarting the app and pdm usually sorts this out. 
     

    Third thing is that a fan start seems to reset/disconnect the pdm, im going through the logs and trying to source the reason

     

    thanks

  4. CAN Keypad with 2x PDMS

    in Razor PDM

    Posted

    I have had a go at this based on what I’ve learned using other PDMs and OEM can streams, but is it not possible to drive 2 PDMs with one keypad?  

    Specifically the blink 12 button keypad I’d like to drive separate PDM outputs. 
     
    Do I need to capture the button activity with the ecu and then send it onto the second PDM?

    Any help would be appreciated 

  5. G4+ Thunder with Razor and Keypad

    in G4+

    Posted

    14 hours ago, Adamw said:

    No you dont need to send frequency or duty, just a 0 or 1 in byte 1.  If it doesnt receive duty and frequency it defaults to 100%DC, 10000Hz.

     

    That would be great, I'm just saying that's not what I observed during testing. I don't have anything on the output, so that might be why it didn't behave the way it's supposed to. I'm going to do more testing.

     

     

    :EDIT: OK, you are correct. If I send status to the PDM I can get it to turn on and off with just the one message.

    However, If I want to control a PWM output(which I cannot send with G4+) I need to send frequency and duty. This would impact anyone who wanted to send FP control or wastegate duty to the PDM, It would be helpful if this information was available.

  6. G4+ Thunder with Razor and Keypad

    in G4+

    Posted

    On 12/9/2022 at 8:21 AM, Vaughan said:

    I made some examples a while ago

    "Example files with PDM receiving 8 Virtual Aux's from G4+ and ECU receiving Keypad Function 1-8 as CAN DI and Keypad Function 9-15 as CAN Analog"

    PDM Keypad to G4+ examplePNG.PNG

    G4+ PDM CAN example.pclr 162.21 kB · 0 downloads G4+ PDM Keypad receive 502.lcs 2.2 kB · 0 downloads G4+ PDM VAux Transmit 500.lcs 1.64 kB · 0 downloads

    Thanks for that, might've saved a few hours scratching my head.

     

    On my bench testing it seems that I needed to include the frequency and duty to be sent to the pdm to get a functioning input, but your LCS doesn"t have it, am I adding unnecessary complexity to this or is it a firmware/bug issue?

    A copy of the full LCS would make this trial and error approach redundant.

  7. G4+ Thunder with Razor and Keypad

    in G4+

    Posted

    OK, I've had a few days to go over this in person with the hardware on the bench..

    Is there a LCS file for the PDM comms? I can make it work, it would save time to load a file and go.

    Can I use CAN DI or AVI inputs from the PDM for sensors/switches? I can get the ECU to "see" a CAN DI but how do I get it to become useful. There are NO CAN DI or CAN AVI assignable like the G4X

     

    Thanks

  9. G4+ Thunder with Razor and Keypad

    in G4+

    Posted

    Hi guys/gals

    I need a little information about the CAN data streams that come embedded in the G4x series but not G4+

     

    I am adding a Razor and Keypad to a G4+ Thunder but the CAN data streams are not available in the G4+ software

    Also, I will need to configure pumps, fans and such to be driven over CAN to the PDM

    Am I able to do this? Is g4+ limited to simple dash streams and not able to command CAN I/O?

     

    Thanks in advance

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