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AWR1443BOOST: hardware trigger

user6372746
Intellectual 520 points
Part Number: AWR1443BOOST
Other Parts Discussed in Thread: DCA1000EVM, , AWR1443

Hi, 

1 Now I have AWR1443BOOST and DCA1000EVM. According to the following thread, if we want to use the hardware trigger mode, then the resistor R62 should be removed. If this resistor is removed, does the software trigger still work?

2 If I cut the cable corresponding to the SYNC_IN pin  of 60pin connector, then does it mean we needn't to remove the R62? And which cable should I cut?

Thanks. 

  • 0
    TI__Guru*** 149994 points

    Hi,

    Please search additional information regarding hardware trigger on AWR1443BOOST using google site search

    "site e2e.ti.com AWR1443 hardware trigger"

    If you are also using DCA1000 you may search

    "site e2e.ti.com DCA1000 hardware trigger"

    thank you

    Cesar

  • 0 in reply to Cesar
    Intellectual 520 points

    Hi, 

    I have already search this information about hardware trigger mode, but there is no enough information in this forum. So could you give me further information about question 2?

    Thanks. 

  • 0 in reply to user6372746
    Prodigy 210 points

    Hello, I'm doing similar things and thought I may be able to give you some info. From what I understand, it is R120 that needs to be removed, not R62, which is on the signal path DMM_MUX_CTL. I have removed R120 and still haven't figured out what I'm missing for hardware trigger to work, but I can tell you that the software trigger still works fine.

    If you wanted to remove this from the 60 pin connector, it would be pin 16. Looking at DCA1000 data capture user guide on page 11 shows the same pin #. I'm also working on hardware trigger for AWR1443BOOST and I chose to remove the resistor on DCA1000EVM rather than cut the trace since it is pretty open on the backside of the board and would be easy to revert. It measured out at 21 ohm for anyone curious. It's around 1 cm to the north-east of TP29 near the bottom. 

    Hope this helps some, Chase

  • 0 in reply to Chase Wood
    Intellectual 520 points

    Thank you very much for your help!

  • 0 in reply to user6372746
    Prodigy 210 points

    No problem. After posting I soon after realized that R62 is the resistor to pull off on the 1443 radar. Pulling R120 off the DCA1000 will prevent having to remove components for any additional radars to use hardware trigger. But doing so will prevent operation of sync_in/sync_out of cascaded sensors if my thinking is correct.