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CAN Receive Message Simulation

hung lun o

I have a test program that sends periodically a CAN message from channel 1.

The commands at the bottom simulate reception of a CAN message in CAN channel. CAN communication window shows a REC message in channel 1 but with different ID and data bytes.

Only when I comments out the code in my test program that sends CAN message from channel 1, then the correct message shows up on CAN communication window. Is it a bug in uVision 4?

This test program ran on uVision 4 and LPC2129 device.

====commands==============================
CAN1ID = 0x01; /* Set CAN message ID */
CAN1L = 1;
CAN1B0 = 1;
CAN1IN = 1;
==========================================