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CC3200: Wi-Fi Smart Plug: Clarification needed regarding schematics

Ruthannah Wang
Prodigy 15 points
Part Number: CC3200
Other Parts Discussed in Thread: MSP430I2040,

Hi all,

I am part of a group of undergraduate students who plan on implementing the TI Smart Plug (www.ti.com/.../TIDC-SMARTPLUG-WIFI as part of our senior design project. My team has run into the following issues and would greatly appreciate it if someone could help us out. Please bear with us as we are still very new at this!

1. The overall block diagram on Page 3 of the User Design Guide shows a DBG connector connected to both the CC3200 and the MSP430i2040. We don't know what a DBG connector is because it has not been mentioned anywhere else in the guide after that, and a quick Google search also did not yield any helpful information.

2. We have been trying to follow the provided schematics by creating a board design in EAGLE, with components listed according to the Bill of Materials (BOM). However, certain components (namely the W25Q16V and SMAJ5.0CA, among others) were not found in either the built-in libraries in EAGLE, nor in TI's CAD/EDA database of models. Which libraries containing these components would you suggest us to download?

3. The schematics of the Metrology Analog Filters show a "Neutral_In" and "Neutral_Out". What is the difference between these?

Thank you very much for your help!

  • 0
    TI__Guru* 91206 points
    Dear Ruthannah -
    1. I do not see any DBG header listed on page 3 (or any other page or block diagram) of any of the documents.
    Please check that again.

    Normally, DBG would be short name for debug header and these are shown on page 8 of www.ti.com/.../tidu983.pdf
    for the CC3200 (for JTAG and UART connections)

    There is a portion of the schematic also which refers to DEBUG2, which is fed to pin 59 of the CC3200, and is being used at ADC Channel 2 - this is jumper selectable in the reference (see figure 6 on page 7 of the same guide pointed to above)

    2. The serial flash (W25Q16V) can be 8 pin SOIC or 8 pin WSON package - I am sure you can find a generic package in Eagle that matches. The SMAJ5.0CA is a TVS Diode in a D0214AC package, also, i would think Eagle has a generic on you could use there. (or perhaps someone in Sparkfun or
    Github might have something for you to use.)

    3. Looks like Neutral In is coming from the AC Line the assembly is plugged into (i.e. the wall power) and Neutral Out is provided to the device being powered.