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Original question:

TIDEP-01012: Request for additional information

TIDEP-01012: Two Sensor application

Bharath Krishna
Prodigy 110 points
Part Number: TIDEP-01012
Other Parts Discussed in Thread: MMWCAS-RF-EVM

Hi Team,

We have gone through the design guide of TIDEP-01012,from our understanding the board can be configured to 2 chip Cascade mode instead of 4 radar sensors.Below are a few queries on this:

1)Which two radar sensors will be active ,as sensor#1 is called master?

2)Assuming only two of the four CSI-4 lanes being active,kindly let us know which CSI-4 lanes are to be considered(In two sensor mode)?

3)Will the TIDEP-01012 board work if only one connector(Either J4 or J5) is connected?

Also please let us know TI EVM's using two or three cascaded radars max. 

Thanks in advance.

Bharath

  • 0
    Prodigy 110 points

    Hi Team,

    It would be great if someone could help me on this.

    Thanks

  • 0 in reply to Bharath Krishna
    TI__Mastermind 18500 points

    Hi Bharath, 

    Please reference the MMWCAS-RF-EVM user guide and then let me know if you still have further questions. 

    http://www.ti.com/tool/MMWCAS-RF-EVM

    Thank you,

    -Randy

  • 0 in reply to Randy Rosales
    Prodigy 110 points

    Hi Randy,

    Thanks for your reply.

    I went through the document and have a few queries:

    1)Firstly Will the TIDEP-01012 board work if only one connector(Either J4 or J5) is connected?If So,which connector is to be considered as AWRx #1 is called the master.

    2)If J4 is connected AWRx #1, AWRx #2 CSI interfaces will be connected,but PMIC#1 powers AWRx #1 and AWRx #4.

    So can you please let me know which sensors will be active when J4 or J5 is connected.

    Thanks,

    Bharath

  • 0 in reply to Bharath Krishna
    TI__Mastermind 18500 points

    Hi Bharath, 

    Please also reference the EVM schematic on that same page. I think it should be possible to find answers to these kinds of questions by looking through the PDF schematic that is available in the design files: http://www.ti.com/lit/zip/tidm464 

    1. As defined in figure 2 of the MMWCAS-RF-EVM user guide, device #1, the master device is reference designator U1_1.

    Yes, the system can work with just a single master and a single slave. Device #1, Master (U1_1) and Device #2, Slave 1 (U1_2) have all of their interfaces pinned out to Host Board Connector #1, reference designator J4. So only J4 is needed to talk to the U1_1 and U1_2 deviecs. 

    2. PMIC #1 and PMIC #2 power up as soon as 5V power is applied. So all four devices will always be powered if 5V is applied. J4 and J5 both provide the SYSTEM_5V0 rail, and if both were powered the load would be split pretty evenly between the two connectors. But both connectors have sufficient current capacity to supply the load for half of the system. So I do not suspect this will be a problem if only J4 were powered. 

    Please let me know if that helps answer your questions. 

    Thank you,

    _Randy

  • 0 in reply to Randy Rosales
    Prodigy 110 points

    Hi Randy,

    Thanks for your answers.Will get back to you if i have any queries.

    Thanks,

    Bharath