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LAUNCHXL-F280025C: Data transfer error when using SCIA TX RX to connect to PC through PL2303

Aaron Chang
Prodigy 80 points
Part Number: LAUNCHXL-F280025C
Other Parts Discussed in Thread: C2000WARE

Tool/software:

Hi Sir

I'm using SCIA connect to PC. It sends data from PC and send the same data back.

During the actual operation, I found that the data returned was wrong. I checked that the TX and RX signals are indeed the values ​​displayed by the PC. May I ask where there may be a problem?

  • 0
    TI__Mastermind 22360 points

    Hi Aaron,

    What is your communication process; are you using FIFOs? How much data are you trying to send?

    Are you using any of our C2000Ware examples already? If not, I would highly recommend referencing one of them and comparing your projects ({C2000Ware}\driverlib\f28002x\examples\sci). For example, there is an SCI echoback example there you may find helpful.

    Can you also try putting the F28002x device SCI into 'internal loopback' mode (where SCI TX is internally connected to SCI RX) and see if you are transmitting and receiving the same/correct data? This can help to confirm your SCI configurations are correct. 

    Best Regards,

    Allison

  • 0 in reply to Allison Nguyen
    Prodigy 80 points

    Hi Allison

    Solved now, thank you for your help

  • 0 in reply to Aaron Chang
    TI__Mastermind 22360 points

    Hi Aaron, 

    No problem! If the post above helped solve the issue, feel free to click the green button of the post to close the thread/upvote the answer Slight smile

    Best Regards,

    Allison