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Blow fuse MSP430F2012

Vladimir Kurbakov
Prodigy 40 points
Other Parts Discussed in Thread: MSP430F2012, MSP-FET, MSP-TS430PW28A, MSP430G2553

Hi everyone, sorry for my English.

I have the MSP430F2012 and programmer MSP-FET. I connected it according to the scheme 

I use CCSv6 and FETPro430-Lite. I tried to blow fuse.

Log from FETPro430-Lite:

=====================================
JTAG communication initialization.... OK
Verifying Security Fuse .................... OK
-------- D O N E --- ( run time = 0.4 sec.)
=====================================
JTAG communication initialization.... OK
Verifying Security Fuse .................... OK
Reading Flash memory .................... done
-------- D O N E --- ( run time = 0.6 sec.)
Reading Code File ........................... done
-- Code size = 0x0900 ( 2304 ) bytes
=====================================
JTAG communication initialization.... OK
Verifying Security Fuse .................... OK
Flash programming .................... done
-------- D O N E --- ( run time = 2.2 sec.)
=====================================
JTAG communication initialization.... OK
Verifying Security Fuse .................... OK
Blowing Security Fuse ..................... failed
--------------- FAILED !!! -----------------

what could be the problem?

Any help is appreciated.

Thanks.

  • 0
    TI__Expert 3295 points
    Vladimir,

    Below I have attached a link to a very similar E2E post that was resolved after trying multiple solutions. Please give these solutions a try, particularly the solution at the end that seems to have worked for everyone having the similar problem. It seems that there may be a timing issue involved when using the MSP-FET tool that causes a false security fuse blown error. Let me know how it goes!

    e2e.ti.com/.../935228

    Sincerely,
    Michael Arriete
  • 0 in reply to Michael Arriete56
    Prodigy 40 points
    Michael,
    Thank you for your answer.

    I blowed fuse, when I made R2 = 0. But the connection TEST/VPP remained connected.
  • 0 in reply to Vladimir Kurbakov
    TI__Expert 3295 points
    Vladimir,

    Were you able to successfully blow the fuse then?

    Regards,
    Michael Arriete
  • 0 in reply to Michael Arriete56
    Prodigy 40 points
    Michael,
    Yes, I blowed fuse yesterday
  • 0 in reply to Michael Arriete56
    Guru 58965 points

    Michael,

    I think the thread you pointed to is about a different problem not directly apply to what Vladimir is facing.

    Vladimir solved his problem by replacing R2 with 0R. But I think what he did may damage the MSP-FET.

    Older FET use Vpp pin to blow physical JTAG fuse. I speculate that MSP-FET changed that and use TCK pin instead. And that is why it cannot blow a physical JTAG fues when there is a 330R in series with TCK pin. He replaced 330R with 0R. This means TEST pin is connected directly with TCK pin. Is this safe during fuse blowing? See Note C.

    I would like to invite  to review this.

    Vladimir was referring to this:

  • 0 in reply to old_cow_yellow
    Prodigy 40 points

    old_cow_yellow,

    Thank you for your post.

    old_cow_yellow said:
    Older FET use Vpp pin to blow physical JTAG fuse. I speculate that MSP-FET changed that and use TCK pin instead.

    If I don't connect VPP/TEST, Fuse don't blow.

  • 0 in reply to Vladimir Kurbakov
    Guru 58965 points

    I said: "... Older FET use Vpp pin to blow physical JTAG fuse. I speculate that MSP-FET changed that and use TCK pin instead. And that is why it cannot blow a physical JTAG fues when there is a 330R in series with TCK pin.  ..."

    That speculation was incorrect. I have since found that MSP-FET also uses Vpp to apply the physical JTAG fuse blowing voltage.

    : 

    You have responded to a more recent posting with almost identical problem -- fail to blow the JTAG fuse of a G2xx chip with MSP-FET, referring to the same "Fig. 3-2".

    Was that resolve? If so, how was it resolved.

    If not resolved yet, do you know where does that "Fig. 3-2" come from? Is the 330R degrading the SBWTCK signal too much? Is what Vladimir did (replace 330R with 0R) very risky?

    Thanks,

    -OCY

  • 0 in reply to old_cow_yellow
    TI__Guru 68116 points
    Hi old_cow_yellow,

    You are right, this looks identical to another thread I am working, which not yet resolved, so this concerns me that we have multiple people seeing the same issue e2e.ti.com/.../1718851.

    I'll have to do some more digging on if there was some change between MSP-FET and MSP-FET430UIF. Historically, that 330R for the TCK pin was to protect the TCK pin on the tool from the fuse blowing voltage, because only the TEST/VPP pin was really set up for that voltage. So I would think that a 0R would be risky - I will consult further with the team. Unfortunately, some may have already begun leaving for the holidays so we'll see how quickly we can get a resolution...

    Regards,
    Katie
  • 0 in reply to Katie Pier
    TI__Guru 68116 points
    Hi old_cow_yellow and Vladimir,

    Sorry for the long delay - teams have been out for the holidays. I wanted to reassure you that we're still looking into this.

    Regards,
    Katie
  • 0 in reply to Katie Pier
    TI__Guru 68116 points
    Hi Vladimir,

    Our tools team was unable to reproduce the issue using the MSP-FET and an MSP430G2553 device in an MSP-TS430PW28A target board - the fuse blow was fine in both JTAG and SBW mode. Can you please provide more information about what board you are using? Could you be having long lines between your programmer and the device (in the hardware tools guide it says no more than 8 inches), etc? Do you have a TI target board that you could try with and compare to?

    Regards,
    Katie
  • 0 in reply to Katie Pier
    TI__Guru 68116 points
    Hi Vladimir,

    Any update - does your issue still persist? Or should we close the thread?

    Regards,
    Katie

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