Holley efi can and dbc

Mohd_216 · November 30, 2024, 4:44am

Hey guys I just noticed holley shared some info about there can system

https://documents.holley.com/techlibrary_holley_efi_can_information___dbcs.zip

SandHillsHillbilly · November 30, 2024, 1:52pm

This is fantastic news. I did check they haven’t released CAN Data for the I/O expansion module or the EGT module. There is no data in that file for either module.

Mohd_216 · November 30, 2024, 11:11pm

I saw some guys did some IO expansion modules.

SandHillsHillbilly · December 1, 2024, 10:59pm

Hardwire Electronics has added Holley and FuelTech Can Bus to their files. You may have to install their app to look at the files. I haven’t tried looking at the Can Bus files with Notepad++.

realdashdev · December 2, 2024, 8:18am

Thank you for sharing. I will prepare XML files based on those DBC files.

Anyone with Sniper V2 / Dominator / Terminator X and some spare time to test the XMLs?

Twinturbozz · December 2, 2024, 11:13pm

I have the dominator

Mohd_216 · December 3, 2024, 2:18am

I do have holley hp and canable 1.0 can to usb

patracy · December 26, 2024, 12:15am

I have a Terminator X Max and would like to be involved in testing.

realdashdev · January 3, 2025, 8:25am

Thank you, I will post XML files here early next week.

patracy · January 7, 2025, 2:22am

Would it be any different from the XML on the github?

github.com

janimm/RealDash-extras/blob/master/RealDash-CAN/XML-files/Holley/holley_efi_can.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- RealDash CAN XML description file, version 2 Requires RealDash version 1.5.8 or newer -->
<RealDashCAN version="2">
  <!-- NOTE: For Holley EFI, the CAN frame baseId must be set as per Holley manual to: -->
  <!-- The CAN ID in the following table has already been masked with 0xfffff800 to remove the EFI
  serial number from the CAN ID. The actual CAN ID that is sent on the CAN bus is the id from the table
  below + ((EFI ID#) & 0x7ff). The EFI ID# is printed on the back of the unit in decimal. -->
  
  <frames baseId="0"> <!-- CHANGE THIS -->

    <!-- PARAMETERS FOR 'frame' -->
    <!-- 'id' can identifier (= baseId + id). Use 0x prefix to enter id as hexadesimal value. For example <frame id="3200"> is equal to <frame id="0x0c80"> -->
    <!-- 'writeInterval' [optional] this CAN frame is written to CAN bus in this interval (milliseconds) -->
    <!-- 'endianess' [optional] the endianess of all frame values (big | little [default]).  -->
    <!-- 'signed' [optional, from 1.7.4] set to true to force RealDash to handle all values in frame as signed values.  -->
    <frame id="0x1E001000" endianess="big">
      <!-- PARAMETERS FOR 'value' -->
      <!-- 'targetId' links value to RealDash input, see RealDash manuals www for a complete list -->
      <!-- OR -->
      <!-- 'name' links value to RealDash input, input appears in 'ECU Specific' input category -->

This file has been truncated. show original

realdashdev · January 8, 2025, 6:43am

Probably yes. I know that XML can be made to work when device serial number is entered into ‘baseId’ attribute, But while I’m working on new versions I try to get rid of that step.

realdashdev · January 8, 2025, 1:51pm

Test version here (do not install unless testing Holley EFI):

https://www.dropbox.com/scl/fo/7eyuk9ljagz9bwryi0skc/ACpxItZwkUw2LCW5sCGmHlY?rlkey=rig4fi7n8lp06ebz3ulcge3xz&dl=0

This version contains CAN support for Holley HP Dominator, Terminator X and Sniper V2. I do not have any of these ECUs to test on, but implementation seemed to work fine on our ECU simulator.

As per Holley documentation, supported devices should be:

All Sniper EFI Products using V2 Software/Firmware and later
All HP & Dominator products using V4 Software/Firmware or
Later
All Terminator X/Terminator X Max Products (V1-V3 Support)

Holley CAN XML files are built-in into this test version. They are also available on GitHub: RealDash-extras/RealDash-CAN/XML-files/Holley at master · janimm/RealDash-extras. Note that these new Holley XML files do not work with currently public (2.4.5) version of RealDash as CAN messages are ‘protected’ with ECU serial number and current version of RealDash is unable to remove this serial number from the CAN frames.

Not all of the CAN frames are implemented, especially on Dominator X, but this should give quite a nice starting point to verify that everything is working properly.

patracy · January 9, 2025, 3:30am

I’ll get it loaded up on my head unit tomorrow. We’re supposed to get hit with some nasty winter weather Friday morning, so I’m not sure how quickly I’ll get it connected to the Terminator X.

What are you using as a ECU simulator?

clmzntyger · January 9, 2025, 4:40am

I know you guys are talking about the V2 products, but can you point me in the direction of the Sniper V1 XML file?? Or a file that some one is using to get the CAN data from a Holley SNIPER V1??

Thank you in advance.

realdashdev · January 9, 2025, 7:34am

We have a in-house developed simulator system that we can use to simulate pretty much anything. So naturally our simulator implementation for Holley may be wrong as its based on available documentation only.

realdashdev · January 9, 2025, 7:35am

This one?

RealDash-extras/RealDash-CAN/XML-files/Holley/holley_efi_can.xml at master · janimm/RealDash-extras

I’m not sure if that is for Sniper V1, it has been provided by RealDash user quite a long time ago.

patracy · January 9, 2025, 1:21pm

A little off topic, but why are you still running V1 software/firmware? V3 has a lot of improvements.

clmzntyger · January 10, 2025, 3:32am

I am talking about Sniper 1 vs Sniper 2 the newest hardware.

patracy · January 10, 2025, 12:56pm

Ahh gotcha. I thought you were talking about the software side of things. It should ship with V3 loaded on it. Should also work just the same with this. The difference with the sniper series is the canbus port like the terminator/dominator/hp have. They changed the connector to a M8 style connector on the sniper unit. I see there are some optional M8 canbus ports on some of the breakout harnesses though, so you could likely still run the 3.5" display to allow adjusting the sniper and then the other port for the realdash connection. (With a adapter of course)

patracy · January 10, 2025, 1:00pm

I did get the apk loaded yesterday on my head unit, it seems to function fine. I also saw the new XMLs for holley in the garage settings. I likely won’t get any further until next week though. We’re already 2-3" of snow and it’s showing this snowfall will keep on for like the next 15-16hrs.

(I live in the southern US, so this kinda thing is unusual)