More than 3 TPDOs

Question

More than 3 TPDOs

PascalGuthof opened this issue 2 years ago · comments

I have another problem/question. But this is better placed in a new issue.
When I try to set up more than 3 TPDOs, it works in the editor. But the device makes an error when it tries to send this last PDO. As EMCY message comes "CO_EMC_CAN_OVERRUN" together with "CO_EM_EMERGENCY_BUFFER_FULL".
As soon as I delete the TPDO, the configuration works as planned.

If anyone knows advice, I have uploaded the xdd files and the OD files.

3PDOs.xdd: https://filehorst.de/d/eazcilwe
4PDOs.xdd: https://filehorst.de/d/eiFsCFgu
OD_3PDOs.c: https://filehorst.de/d/efxqekDa
OD_3PDOs.h: https://filehorst.de/d/eBJdufbz
OD_4PDOs.c: https://filehorst.de/d/enkgGsiJ
OD_4PDOs.h: https://filehorst.de/d/eevfnJEb

Janez · Answer 1 · Fri Dec 02 2022 03:33:36 GMT+0800 (China Standard Time)

It seems, object dictionary is correct. There must be something else with the device. Can you provide some CAN messages?

PascalGuthof · Answer 2 · Fri Dec 02 2022 19:06:02 GMT+0800 (China Standard Time)

Thanks for the reply.
Yes I actually also think that the OD is correct. But the successful running of the program depends on that alone.
Never mind. I have recorded a trace. The 4 PDOs have the ID 1A0, 2A0, 3A0 and 4A0. PDO 1-3 send numbers, PDO 4 is 0.
The last message is the mentioned EMCY message.
4PDOs.txt

I hope this is helpful.

trojanobelix · Answer 3 · Fri Dec 02 2022 20:42:34 GMT+0800 (China Standard Time)

4PDOsnew.xdd.txt
Can you check this one, ignoring the warnings. (rename to xdd)

Janez · Answer 4 · Sat Dec 03 2022 06:59:48 GMT+0800 (China Standard Time)

This is certainly a strange behavior. There may be something wrong inside the driver. I think, this is not CANopenEditor issue.

Fourth byte inside the emergency message is 0x14.
inside CO_emergency.h: CO_EM_CAN_TX_OVERFLOW = 0x14U,
follow CO_EM_CAN_TX_OVERFLOW inside CO_emergency.c, where errors from driver are verified.
then follow CO_CAN_ERRTX_OVERFLOW inside the driver ...

Otherwise, wrongly configured object dictionary should not trigger CAN TX overflow.

trojanobelix · Answer 5 · Mon Dec 05 2022 19:42:56 GMT+0800 (China Standard Time)

Should we move the issue to the CanOpenNode?

Janez · Answer 6 · Tue Dec 06 2022 16:52:02 GMT+0800 (China Standard Time)

Currently there is not enough information about the bug. Is it inside a driver? Custom driver or which?

Alrick-gr · Answer 7 · Tue Mar 28 2023 16:36:28 GMT+0800 (China Standard Time)

Hello,
I have the same bug and I can t find why, in CO_CANsend I have the error CO_ERROR_TX_OVERFLOW
When i put a breakpoint before CO_process_TPDO, then it works and send all TPDOS, but the device will no longer receive any commands.

Janez · Answer 8 · Tue Mar 28 2023 19:29:44 GMT+0800 (China Standard Time)

Must be something with the driver. Please ask there.