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TP65400 Programming

Ryan Murphy39
Prodigy 40 points
Other Parts Discussed in Thread: TPS65400

Hello all,

I am new to the forums and to the TPS65400.  I am using a PIC24FJ256GB206 microcontroller to talk with the TPS65400 via I2C and I had a question about programming the 65400.  Are there any examples on how to configure the TPS65400 for initial setup?  Ive read through the data sheet and I see all of the different commands but I am unsure of how to actually program them.  I am a junior EE student and this is for a project which is all of this is new to me.  I have already programmed my PIC to communicate with a current and voltage sensor and the TPS65400 is the only thing i have left to program.

Does the 65400 need to be programmed at every start up? or is it something I have to do once?   Any help/examples/ or suggestions would be greatly appreciated.

Thanks,

RM

  • 0
    Prodigy 40 points
    I should also note that I only need to be able to adjust vref through i2c but my normal i2c write protocol doesnt seem to work on the TPS65400. I tried following the protocol in the datasheet but the vref never changes. The datasheet says (start, slave adr, wr, ack, command code, ack, data byte, ack, stop). So if i wanted to adjust the vref for switch 1, what is the correct write protocol for that?