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TMS320F28374D: Controller is not detecting

Vasu Mani
Prodigy 150 points

Part Number: TMS320F28374D
Other Parts Discussed in Thread: TMDSEMU200-U, C2000WARE, UNIFLASH

Hello,

We have dessinged a TMS320F28374D based cutom controller board for a project and we are using XDS200 Digital spectrum for debugging and falsh operation. We are facing issues like, target is detecting wher we are trying to connect target and debugger is disconnecting when we are trying to do flash erase operation.  I have attached the screenshots for your reference.

after connection.png

 after earse operation.png

Guide us on this.

  • 0 in reply to Vasu Mani
    Prodigy 150 points

    Hello Alex,

    We have noticed one more thing here, We missed to wire Reset pin from 15th pin of JTAG connector to XRS pin of MCU, Is that required to connect? Evern we have connected through a series resistor between XRS and Reset pin of JTAG. After this we noticed in the RESC register, WDRSn bit also set now.

  • 0 in reply to Vasu Mani
    TI__Mastermind 27855 points

    Hi Vasu,

    First I have to dump the code into the controller to try Falsh API programming. I could not dump the code.

    Alex's suggestion was to run the Flash programming example from RAM (import the project in CCS, launch the target configuration file, connect to the target, load program). So, are you not able to load anything to the device, even to the RAM?

    WDRSn - indicates a watchdog reset which can be a problem if it happens during Flash operations.

    Thanks,

    Sira

  • 0 in reply to Sira Rao80
    TI__Mastermind 19310 points

    Connecting RESETn to XRSn is not required. We generally do not recommend this since the JTAG reset conditions aren't intended to align with XRSn type reset.

    Sira Rao80 said:
    So, are you not able to load anything to the device, even to the RAM?

    Please attempt what Sira recommended, please attempt to program the RAM only. 

    Best,
    Matt

  • 0 in reply to Matt Kukucka
    Prodigy 150 points

    Hello,

    Thank you so much for you support,

    As suggested earlier we were trying without external crystal oscillator and it was not working and now we tried after placing external crystal oscillator, it is working fine now and flash programming also happening.