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CCS/TMS320F28335: using CAN communication may i able to send multiple single values

Tejal gole
Prodigy 230 points

Part Number: TMS320F28335

Tool/software: Code Composer Studio

HI, using Can communication , I want send multiple signal values like input current , input voltage etc in real time .which command should i use? 

  • 0
    Intellectual 410 points
    Hello,
    it depends on how many bytes are needed to send one of the signals. One CAN frame contains 8 data bytes.
    A CAN frame is identified by its CAN ID. The 8 data bytes can be used freely:
    This may be some bitwise information (such as flags which indicate something...), or 8 different values which need one byte each,
    or two float values which need 4 bytes per value etc. etc. ... ...
    So, you have to determine which ID should be used; and how to distribute the information over the 8 bytes.
    If you use just one CAN channel, any information that takes more than 8 bytes must be split **over several successive** CAN frames...

    Hope it helps...
    Goetz
  • 0 in reply to Goetz Borkowski7
    TI__Guru* 95315 points
    There is no “command”. As Goetz indicates, you need to package the data that you want to transmit into the data-bytes portion of the CAN frame.