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PGA450-Q1: PGA450Q1EVM Programming Error

user5069437
Prodigy 20 points
Part Number: PGA450-Q1
Other Parts Discussed in Thread: PGA450Q1EVM, , PGA460-Q1

According to PGA450Q1EVM User's Guide "5.3 0-Ω Resistors" on P7,

I installed jumpers and 0-Ω resistors to R2, but I could not write the program.

I can see the VP_OTP is ON and 8V supplied.

Also I use PGA450-Firmware Rev 2.1.1 downloaded by web.

But it shows writing error at both of OPT and DEVRAM.

Pls give me advise and fix way.

Thanks.

  • 0
    TI__Mastermind 27950 points
    Hello user5069437,

    The PGA450-Q1 installed on the PGA450Q1EVM is already OTP programmed to jump to DEVRAM, so you cannot re-program the OTP memory. If you populate a new/pristine PGA450-Q1 onto the EVM, you can then reprogram the OTP memory. Before you do that, why are you wanting to reprogram the OTP memory? Can you not use the DEVRAM for your development purposes?

    Also, TI has released the PGA460-Q1, which is our next-gen USSC device. I recommend that you use the PGA460-Q1 instead, since the PGA460-Q1 has an improved driver and AFE performance.