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Original question:

hw_memmap.h and hw_types.h for Piccolo device

發射XL-F2800137：can.c function question

yuhua chao
Prodigy 50 points
Part Number: LAUNCHXL-F2800137
Other Parts Discussed in Thread: SYSCONFIG

What is the means of "base" in function "CAN_sendMessage" and "CAN_readMessage"?

I import the CAN example of can_ex1_loopback, and use CAN Tool to check like below.

If I want to change CAN ID to "0x12FFF012"，how can I set .

  • 0
    TI__Expert 6035 points
    yuhua chao said:
    "base" in function

    It stores the base address for the CAN module, and the function calls only include offsets to calculate the addresses of the relevant registers. The base addresses are available in the file "hw_memmap.h"

    yuhua chao said:
    If I want to change CAN ID to "0x12FFF012"，how can I set

    The example in question uses Sysconfig (GUI for initial configuration). Go to can_ex1_loopback.syscfg in CCS, and within the GUI, under the Message Object 1 (to modify transmit message object), the field Message identifier can be updated. On building the project, the corresponding code will be automatically generated. All other examples are without sysconfig, and there the CAN_setupMessageObject() function parameters can be updated to set desired CAN ID. 

    Thanks.