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AWR1642: AWR1642 capability between RF and DSP

Omin Chou
Genius 3555 points
Part Number: AWR1642
Other Parts Discussed in Thread: AWR1243

Hi all,

My code base is MMWAVE_SDK v01.00.00.05 and use AWR1642 custom board.

I got some confused between RF and DSP capability. Here are my queries.

1. Using mmWave Demo Visualizer could only get 62.5M for maximum range. But I checked RF capability that could achieve 200M by RTS test machine.

How to set the parameters to obtain maximum range as above condition? Here is my parameter setting.

 

2. mmWave Demo Visualizer could help to setup following status or not. Or must to use Radar Studio?

   (1) Custom Tx and Rx combinations. E.g. 1T2R or 2T4R.

   (2) Tx output power and Rx gain

3.  EVM would generate strange noise when press "SEND CONFIG TO MMWAVE DEVICE". Did we have any method to resolve this problem?

Thanks in advance.

B.R.

OC

B.R.

OC

  • 0
    TI__Guru 58035 points
    Hello Omin,
    You can set most of the RF front end parameters using the config file in the mmwave demo application. You first save a config file by clicking on "save config to PC" and then edit the file with the desired parameters using a text editor. The explanation for each of the parameters is available in the SDK user guide (section 3.5). You can then load the modified configuration file back using visualizer tool by clicking "load configuration file from PC".

    You can use the sensing estimator tool (dev.ti.com/.../) to verify you configuration before you use it in the configuration file. In case of AWR1642 you also need to take care of the memory available within the device and IF frequency limitation of 5Mhz. All this would limit the maximum distance you can achieve. AWR1642 is intended for a short range application , typically for long rang applications like 200m we recommend using AWR1243 device with external processor. This is because you might need larger memory, larger IF bandwidth and larger processing capability for long range applications.

    Regards,
    Vivek