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CCS/TMS320F28335: f28335 can have different date between real and programing

user5913644
Prodigy 205 points
Part Number: TMS320F28335

Tool/software: Code Composer Studio

i have 8 data in programing

but only 7 data in real

why?

and why is there a gap in each data byte?

  • 0
    TI__Guru* 95315 points

    It is extremely difficult to properly decode the CAN bus waveform using a scope that does not have the CAN trigger built-in. CAN bus waveform is fairly complex with multiple fields. Please take a look at the waveforms in http://www.ti.com/lit/sprace5 . If it is not practical to acquire a scope with CAN triggering, you could buy an inexpensive USB-CAN dongle, some of which are available for <US$100. The CAN bus analyzer GUI would be the easiest way to get visibility to what actually gets transmitted on the bus. The “gap” you are referring to is because of the stuff bits.