PCAN-USB: Received messages are acknowlegded but not displayed by PCAN-View

USB to CAN Interface
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adown
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PCAN-USB: Received messages are acknowlegded but not displayed by PCAN-View

Post by adown » Mon 19. Jun 2023, 20:11

I am trying to view CAN2.0 messages sent from an embedded MCU on PCAN-view. I have a scope connected to the bus decoding CAN frames as well. I have verified that my embedded device can receive messages from PCAN-View, and I have verified that electrically everything is in order (bus levels, time bases).

As part of my testing I have sent a simple message FROM the PCAN-view terminal to the embedded HW and recorded the waveform. Its acked by the embedded HW and i can see it in embedded memory. Thats all good.

I then send the same message (same ID, DLC, payload...) back from the embedded device to PCAN-view. On the scope i can see that the waveform is identical, so I know i'm sending exactly the same message with the same timing. I also see PCAN-view ACK the message. However nothing appears in the Receive/Transmit window.

I have the acceptance filter set to accept everything. I have both embedded and PCAN setup for 125kbs with 80% sample points. How is it possible that PCAN-view acks a message (indicating to me the message validity) but doesnt display anything? Any help/pointers are hugely apprecaited.

Im running PCAN-view 5.0.5.871
I have PCAN-USB HW with firmware 8.3.0 and driver 4.4.0

Screen captures:
Figure 1 shows PCAN sending message (yellow) and embedded acking (blue)
Figure 2 shows embedded sending message (blue) and PCAN acking (yellow)

-Alexander
Attachments
embedded sending message (blue) and PCAN acking (yellow)
embedded sending message (blue) and PCAN acking (yellow)
Figure2.png (1.1 MiB) Viewed 6926 times
PCAN sending message (yellow) and embedded acking (blue)
PCAN sending message (yellow) and embedded acking (blue)
Figure1.png (1.1 MiB) Viewed 6926 times

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PEAK-Support
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Re: PCAN-View ACKs but does not display received messages

Post by PEAK-Support » Mon 19. Jun 2023, 20:35

Please send us
- more information how you setup the PCAN-View connection options
- is the Bus is terminated? If yes how?
- what exact are you see in the PCAN-View Status Line?
- run the Tracer and set Error logging also active - what do you capture?
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adown
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Joined: Mon 19. Jun 2023, 19:25

Re: PCAN-View ACKs but does not display received messages

Post by adown » Mon 19. Jun 2023, 20:59

Hi, information requested below:

- more information how you setup the PCAN-View connection options
(see attached image). Listen-only mode is not checked.

- is the Bus is terminated? If yes how?
Terminated with a 137Ω resistor on the embedded HW.

- what exact are you see in the PCAN-View Status Line?
"Connected to hardware PCAN-USB, DEvice ID 60h" Bite rate: 125kbit/s Status:OK Overruns: O QXmtFull:0"

- run the Tracer and set Error logging also active - what do you capture?
I run the tracer, send a CAN message from embedded to PCAN. Nothing is displayed in the trace window. (See attached image)
Attachments
PCAN trace showing options.png
PCAN trace showing options.png (37.94 KiB) Viewed 6923 times
PCAN trace.png
PCAN trace.png (28.59 KiB) Viewed 6923 times
PCAN connection options.png
PCAN connection options.png (52.91 KiB) Viewed 6923 times

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PEAK-Support
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Re: PCAN-View ACKs but does not display received messages

Post by PEAK-Support » Mon 19. Jun 2023, 21:13

Please send a Picture of the used Device (PCAN-USB) to support @peak-system.com showing the serial number ( please do not post here)
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adown
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Re: PCAN-View ACKs but does not display received messages

Post by adown » Mon 19. Jun 2023, 21:25

Sent!

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Re: PCAN-View ACKs but does not display received messages

Post by PEAK-Support » Tue 20. Jun 2023, 12:52

solved by bring the PCAN-USB up to date (Firmware)
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