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MSP430F5659: MSP430Ware USB using examples on custom board, never enumerates

Robert Montgomery
Prodigy 30 points
Part Number: MSP430F5659
Other Parts Discussed in Thread: MSP430WARE

Custom board, although the USB circuit is the same as TI development boards. Board runs main applications without a problem. Includes LCD, external Flash, LED's, etc.

Re-programmed thru MSP-FET430UIF with just the example USB stuff. Changed the port initialization so that it complies with my board (example throws all port pins to GND).

X1 = 32768, X2 = 4.0MHz

Using MSP430Ware 3.80.13.03. Attempted C0_SimpleSend, and H7_Mouse.

In both cases, the program seems to end up in __TI_ISR_TRAP.

I also added the change from another thread that reduced the power level to X2 drive. No luck.

Robert M

  • 0
    Prodigy 30 points

    Solved the problem. The ISR I was falling into was a default ISR that the example code pops in for all unused ISR's. My initialization code had a RTC interrupt set, and I had not copied over the RTC interrupt. Once I discovered that, the examples ran without flaw.

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