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Chip cascade #3

S PY
Prodigy 70 points
Other Parts Discussed in Thread: AWR1843, AWR2243
Thank you very much for your reply.I was alone with the SPY.In my experiment, I used three computers and three chip boards to simultaneously collect data in different locations.I need to synchronize all three chips. Do I need to add a microprocessor hardware to trigger the clock signal?
------------------ 原始邮件 ------------------
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发送时间: 2020年9月16日(星期三) 晚上9:47
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主题: Answer Suggested: Chip cascade

 

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RE: Chip cascade

 Ishita Kochar

Hello User,

Closing this thread, because it is a duplicate of the below thread :

https://e2e.ti.com/support/sensors/f/1023/p/937022/3475992

Will respond there shortly.

Regards,

Ishita



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  • 0
    TI__Guru*** 147964 points

    Hi,

    From your older thread I understand that you are using AWR1843 devices.

    AWR1843 devices can be frame synchronized using hardware trigger. The clock can't be synchronized for these devices. You would need to use AWR1243P or AWR2243 devices if you want to achieve clock synchronization (this is also called cascade. Cascade synchronization is not possible with AWR1843)

    thank you

    Cesar

  • 0
    Prodigy 70 points

    Thank you for your reply.Excuse me, since 1843 cannot be cascaded, 2243 and 1243 can be cascaded to achieve synchronization.So does the cascaded mode need to be cascaded through the chip to work, and must be installed on a chip?Is it possible for 1243 and 2243 to be distributed so that time is received in different locations?

    ------------------ 原始邮件 ------------------
    发件人: "mmwave_sensors_forum" <bounce-20288@mail.e2e.ti.com>;
    发送时间: 2020年9月24日(星期四) 晚上9:08
    收件人: "mmwave_sensors_forum"<mmwave_sensors_forum@mail.e2e.ti.com>;
    主题: Answer Suggested: Chip cascade #3

     

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    RE: Chip cascade #3

    		 Cesar

    Hi,

    From your older thread I understand that you are using AWR1843 devices.

    AWR1843 devices can be frame synchronized using hardware trigger. The clock can't be synchronized for these devices. You would need to use AWR1243P or AWR2243 devices if you want to achieve clock synchronization (this is also called cascade. Cascade synchronization is not possible with AWR1843)

    thank you

    Cesar



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  • 0
    Prodigy 70 points
    May I ask, can the 1843 radar be used for distributed radar imaging?Or can this board be used alone as radar imaging?Can multiple 1843 chips find a pin inside that can connect multiple chips to external MCU or microprocessor to realize hardware trigger?

    ------------------ 原始邮件 ------------------
    发件人: "mmwave_sensors_forum" <bounce-20288@mail.e2e.ti.com>;
    发送时间: 2020年9月24日(星期四) 晚上9:08
    收件人: "mmwave_sensors_forum"<mmwave_sensors_forum@mail.e2e.ti.com>;
    主题: Answer Suggested: Chip cascade #3

     

    A Message from the TI E2E™ support forums

     

    Dear E2E User:

    Per the ongoing discussion on E2E, an answer was suggested to resolve your issue.

    Please let us know if you believe the issue has been resolved. Please click one of the following buttons on the thread:

    1: If the answer provided resolved your issue, click This resolved my issue

    2: If the answer provided did not resolve your issue, and your question needs further attention, click This did NOT resolve my issue

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    This thread will be locked after 30 days of inactivity.

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    E2E team
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    RE: Chip cascade #3

    		 Cesar

    Hi,

    From your older thread I understand that you are using AWR1843 devices.

    AWR1843 devices can be frame synchronized using hardware trigger. The clock can't be synchronized for these devices. You would need to use AWR1243P or AWR2243 devices if you want to achieve clock synchronization (this is also called cascade. Cascade synchronization is not possible with AWR1843)

    thank you

    Cesar



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  • 0 in reply to S PY
    TI__Guru*** 147964 points
    Thank you for your reply.Excuse me, since 1843 cannot be cascaded, 2243 and 1243 can be cascaded to achieve synchronization.So does the cascaded mode need to be cascaded through the chip to work, and must be installed on a chip?Is it possible for 1243 and 2243 to be distributed so that time is received in different locations?

    Hi,
    In order for cascaded structure to work all the sensors must use the same 40MHz clock. This will be difficult to achieve if the sensors are not placed in close proximity.
    thank you
    Cesar