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Unable to disable PCAN_LISTEN_ONLY after CAN_Initialize has been called

Open codeskin opened this issue 2 years ago • 0 comments

If PCAN_LISTEN_ONLY is enabled before CAN_Initialize has been called, then trying to disable it subsequently, as follows, has no effect.

int option = PCAN_PARAMETER_OFF;
status = CAN_SetValue(PCAN_CHANNEL, PCAN_LISTEN_ONLY, &option, sizeof(option));

Even though the parameter will be reported as OFF when CAN_GetValue is called, the PCAN_LISTEN_ONLY appears to be still active.

This problem is observed with "libPCBUSB.0.11.dylib" on macOS Catalina (Intel).

Test setup:

  • PCAN-USB FD
  • one node on bus, periodically transmitting a message containing a byte that increments at each transmit

PCAN_LISTEN_ONLY mode being active can be observed, when messages are received, but the counter is no longer increasing, suggesting that the PCAN device is not acknowledging the message.

codeskin avatar Mar 14 '22 13:03 codeskin