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Cant program MC4x
I am having an issue where I cant program the MC43 in my system.
We are using a HP8441 PDM in our system, and if the CAN wires from this PDM are connected to the MC43 it faults out when programming. And says there is no replay from the master, but IQAN Run and the program works as it should with no issues.
The only way I am able to program the MC is by removing the CAN wires or the address resistor.
This isn't a great solution, any help on a solution to this?
PDM I am using
https://motorsportelectronic.com/Hjem/hp8441
Fault I am getting
Layout of the program, as you can see its the only CAN item on this bus.
Customer support service by UserEcho
How are you connecting to the MC43 ? Via CAN, Bluetooth or Ethernet?
When this happens, what blink code does the MC43 LED show?
I tried via the CAN and Ethernet and still got the same issue.
I even moved the diag Can to Can D and added a MD4 connected to CAN A. When I programmed it through ethernet on the MD4. The display would program correctly and then when it got to the MC43 it would fault out the same way.
Unfortunately the truck is 8hrs away now, and I do not know the flash code when this happened.
Let me see if I can get someone to upload a program to the truck and get that.
I have a few more of the HP8441 modules on there way to me. Once I get them I can also setup a bench test here to see what is going on. It will be about 2 weeks before I see them.
I figured out the issue with this.
One of my modules is a generic 11 bit can in the 700 hex range, Come to find out this is the same as some messages sets of the diagnostic can. If this module was broadcasting message when I would program the IQAN modules, it would cause the upload to fail. My solution was to implement the CANopen start up message commands to these modules.
So when I want to program the system, I first adjust an digital parameters to turn off all CAN message. Then upload the program, then turn the adjust parameter back to broadcast messages. This seems to have fixed my issue.
Not sure if there is anything Parker can do to make this more bullet proof solution, because if you forget to turn the messages off, and upload and it fails. I have to put each module in safe mode to reupload the logic. It sucks when a person does that.