Defective 64-pin ZIF socket on TI target board MSP-TS430PM64

old_cow_yellow

Other Parts Discussed in Thread: MSP-TS430PM64, MSP430F149

Is there something wrong with pin #17 of the 64-pin ZIF socket on TI target board MSP-TS430PM64?

I have a Rev.: 1.1 board and an old Rev.: 0.1 board. I just found out that they both seem to have the same defect. Pin #17 of the ZIF socket is not connected to the corresponding gold-finger inside the socket. As a result, I cannot access P1.5 of the chip.

The P1.5 I/O (pin #17) of my chip works. It is programmed as an output and toggles between Vss and Vcc. Pin #17 is in good contact with the finger #17 of ZIF socket. Pin #17 of the socket is soldered to the PCB. But I cannot see the toggling signal there. It is floating.

I also checked with an ohmmeter. Pin #17 of the socket is not connected to finger #17 of the socket.

over 14 years ago

0 Brandon08 over 14 years ago

TI__Mastermind 23425 points

I was able to probe pin 17 (and see a logic high) using the MSP430F149 on my rev 1.1 PM64 board. Perhaps your particular board is damaged?

0 old_cow_yellow over 14 years ago in reply to Brandon08

Guru 58965 points

Brandon,

Thank you for looking into this.

I wish MSP-TS430OM64 users would check this too.

Those target boards of mine are both very old and were purchased years apart. But both have the same discontinuity hidden inside the plastic -- from solder pin #17 at the bottom of this ZIF socket to the corresponding gold fingers inside the socket. There may be some weak spot that can easily break apart due to aging, stress, etc.

-- OCY

0 Brandon08 over 14 years ago in reply to old_cow_yellow

TI__Mastermind 23425 points

What you're saying is very possible, but personally I've not heard of any issues with that board. If anyone else has one of these and sees a similar issue, post it here!

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Defective 64-pin ZIF socket on TI target board MSP-TS430PM64