program fails to run when debugger is disconnected from target msp430f5438a board

mathews paul

Other Parts Discussed in Thread: MSP430F5438A

Dear All,

I successfully programmed and debugged MSP430f5438a based board.But when the debugger is disconnected from target , the code fails to run . I doubt whether power on reset is not happening when the board is powered on without debugger.

program runs from begining when debugger is connected. (power on reset happens each time board is powered on)
program remains in its last stage when debugger is not connected.(program fails to start from its begining during power on)

FET debugger is used. Please share your thoughts.

over 12 years ago

0 blb over 12 years ago

Genius 3020 points

Hi,

We had the same symptoms early on in our development and found that we had neglected to put a pull-up on the JTAG reset line. A 47K pull-up fixed our issue.

HTH,

Barry

0 psa over 12 years ago

Intellectual 450 points

Is your supply voltage high enough? In the absence of the FET, low supply voltage can be a possible cause for this.

0 Ilmars over 12 years ago in reply to psa

Guru 46710 points

psa said:
low supply voltage can be a possible cause for this.

Especially in case you are using higher than 1MHz, clock. What's clock freq and how/when you set it?

0 mathews paul over 11 years ago in reply to Ilmars

Intellectual 280 points

this issue was resolved after i rebuild the project after clean. It was basically issue with debug build of CCS. Thanks for your support.

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program fails to run when debugger is disconnected from target msp430f5438a board