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MSP432-DEBUGGERS: Unable to connect debugger to the Custom Built Target Board of MSP432P401R

Amit Kotal
Intellectual 535 points
Part Number: MSP432-DEBUGGERS

Hi,

I have built a custom development board of MSP432PRIPZR, I am trying to flash program using the XDS debugger from the MSP432P401R Red EVM. Following are the connnection for the Debugging Purpose;

1. 10Pin OnBoard Box Header

2. 3.3 V Supply & GND

I am flashing a simple led blinking program for testing purpose.

But while flashing I get the Following

Error connecting to the target: (Error -613 @ 0x0) The target indicates that it is busy.  Either try the SWD request  again, or abort the transaction. (Emulation package 6.0.628.1) .


Also I would like to mention that Initially I was successful once to burn program, but later the above error were showing up.

Do we need any kind of boot loader for flashing the MSP432P401RIPZR?

Regards,

Amit Kotal

 

 

  • 0
    TI__Genius 16195 points

    Amit,

    Can you share the schematic capture for your custom board? You don't have to share everything but we could have a quick look and see if the JTAG and power are properly connected.

    Couple of things that you could also check.

    1. The JTAG cable does not provide power. You would need to make sure to power the custom dev board first.

    2. Review the VCC and also the Analog VCC pins to ensure they are connected

    3.  Followed the recommended JTAG pins if they are properly connected.

    4. Did you enable JTAG protection?

    Amit Kotal said:
    Do we need any kind of boot loader for flashing the MSP432P401RIPZR?

    You do not. This should all be part of the XDS debugger and the drivers that will handle it.

    William

  • 0 in reply to William Goh
    Intellectual 535 points

    schematic pratik (1).pdfHi William,

    Thanks for your reply. I am attaching the pdf f board schematic for your reference.

    Regards,

    Amit K

  • 0 in reply to Amit Kotal
    TI__Genius 16195 points

    Amit,

    At a quick glance on the schematic, you are missing a Capacitor on the VCORE pin. Take a look at this link here for a reference schematic on the VCORE pin. Also take a look at the datasheet on the capacitor value of the VCORE and this varies based on if you plan to run the device in LDO or DCDC mode.

    Also, are you planning to run this device using the internal LDO or DCDC mode?

    http://www.ti.com/lit/zip/slar113

  • 0 in reply to William Goh
    Intellectual 535 points
    Hi William
    Thanks for the reply
    Yes we have not included VCORE Capacitor; since in the following thread it was mentioned as not necessary
    e2e.ti.com/.../543088

    Can you plz elaborate LDO vs DCDC Mode considering Battery Based Application.

    Regards,
    Amit Kotal
  • 0 in reply to Amit Kotal
    TI__Genius 16195 points

    Amit,

    The DCDC mode will give you better energy efficiency for your battery based application. The active current is much lower than using the internal LDO so this should extend your battery life.  The datasheet would have the numbers.

    Amit Kotal said:
    Yes we have not included VCORE Capacitor; since in the following thread it was mentioned as not necessary

    What is true from that thread is that you do not need to populate the inductor to VSW pin if you do not plan to use the DCDC. And you definitely need a capacitor on the VCORE pin if you use either the internal LDO or DCDC mode.

    William

  • 0 in reply to William Goh
    Intellectual 535 points
    Thank You William for your Help & Guidance, Will make the necessary design changes.

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