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AWR1642BOOST: purpose of the headers and receptacles on the EVM

Viktorija Cecil
Mastermind 18491 points
Part Number: AWR1642BOOST
Other Parts Discussed in Thread: AWR1642

The following headers and receptacles exist on AWR1642BOOST EVM Board. But their purpose and/or where the signals go to from the board are not explicit. Would you kindly help clarify why they are on the board and/or where the signals go to from the board?

P1: 3 pin header for the analog signals (AR_VSENSE, GND and AR_ANAMUX). Does this go to an expansion board or what’s the purpose?

 P5: 2 pin header next to the 5V input. I presume this is a voltage threshold check for the 5V input. Is this accurate?

 P7: 2 pin header for VPP_IP7. Is this just a voltage check for going to VPP_IP7?

 J2: Straight Jack Receptacle. The signal name is AR_OSC_CLKOUT which is tied to AWR1642. But it’s unclear what this jack receptacle is tied to externally.

 J4: 3 socket receptacle for 3.3V from micro-controller (MCU_3V3). Does this go to an expansion board or what’s the purpose?

 J7: 3 socket receptacle for 5V from micro-controller (MCU_5V). Does this go to an expansion board or what’s the purpose?

Thank you

Viktorija

  • 0
    TI__Mastermind 30715 points
    Hello Viktorija,

    1. The ANAMUX/VSENSE are GPADC inputs to the AWR device. I am not certain what the ANAMUX and VSENSE functions are on top of the normal GPADC functions, I will clarify this and get back to you. They are not used for any other boards, they are purely for debugging purposes.

    2. P5 is an optional jumper for measuring current on the 5V input.

    3. P7 is connected to supply the VPP supply when burning an encryption key for secure devices. VPP supply can be left floating on non-secure devices.

    4. J2 is a debug port to connect OSC_CLKOUT to a spectrum analyzer to monitor the APLL/SYNTH performance.

    5. J4 is an optional connector that is part of the booster pack connectors to provide a 3.3V supply to an external MCU on a boosterpack.

    6. J7 is an optional connector that is part of the booster pack connectors to provide a 5V supply to an external MCU on a boosterpack.

    Regarding 5 and 6, you can find the standard booster pack requirements here if you intend to make your board compatible with TI boosterpacks.

    www.ti.com/.../build.html

    Regards,

    Adrian
  • 0 in reply to aozer
    TI__Mastermind 30715 points
    Hello Viktorija,

    For number 1 above, the ANAMUX/VSENSE pins are just standard GPADC inputs that can be configured for the customers use case as needed. As mentioned above they are brought out on the EVM purely for debug purposes.

    Regards,

    Adrian