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AWR1243BOOST: Does not respond consistently

May
Genius 9880 points
Part Number: AWR1243BOOST
Other Parts Discussed in Thread: AWR1243

Hi,

Customer is encountering using the device, please see details below.

"I'm wondering if you'd be able to help me with a problem I have porting mmWaveLink for the AWR1243BOOST ES 2.0. I've been using the mmwavelink_example.exe program in mmWave DFP 1.00.00.01 (the last DFP/SDK version compatible with ES 2.0 AWR1243), but I decided to implement the callback functions in the porting guide so that I could port it to whatever system it might need to be used with in the future. After doing so, however, the AWR1243 doesn't respond consistently. The host interrupt doesn't go high even after setting nReset low, waiting for various amounts of time (1-2000 ms), and setting it high again, except in a few cases when I either waited for a few minutes or unplugged and restarted the device. I also tried ignoring the host interrupt and triggering the interrupt callback as if it had gone high, but then mmwavelink failed to detect any header or sync packets on SPI.

The closed source library provided in the DFP works fine, but I'm not sure what to do since I'm not aware of any other steps to implement the callback functions. Is there anything I might not be doing right or might not be aware of?"

Regards,
Maynard

  • 0
    TI__Guru*** 147964 points

    Hi,

    AWR1243 ES2.0 is not a production device.

    If customer plans to perform sw development investment they should use the production AWR1243 ES 3.0.

    Our team is able to support only the production device.

    thank you

    Cesar

  • 0 in reply to Cesar
    TI__Genius 9880 points

    Hi Cesar,

    Thank you for the information, Customer want to know how you were able to reset the ES 3.0? According to them they need to figure out now is how to get the Host Irq to go high after nReset release without manually power-cycling the AWR1243.

    I just have one question besides that: Does the DFP/SDK download firmware over SPI through the FTDI on the DCA1000 or through the USB cable directly connected to the AWR1243?

    Regards,
    Maynard

  • 0 in reply to May
    TI__Guru*** 147964 points

    Hi,

    Yes, the firmware is downloaded through SPI when mmWave Studio is used with DCA1000.

    Thank you

    Cesar

  • 0 in reply to May
    TI__Guru 58035 points

    Hello Maynard,

    Please request the customer to use AWR1243 ES3.0 production part wtih latest DFP 1.2.6. ES2.0 devices are no longer supported. 

    Regarding the nReset, they need to ensure that the nreset of the AWr1243 device is released only after all the power supplies (1.8V, 1.2v, 3.3V) and SOP lines to the AWR1243 device are stable. Please refer to the wake up sequence in the datasheet. 

    Regards,
    Vivek

  • 0 in reply to Vivek Dham
    TI__Genius 9880 points

    Hi Vivek, 

    Please see customer reply.

    I'm very close to solving the problems I've been having with the AWR1243, but if you could answer just one question I have, that would save me a lot of time of trial and error and I would be very grateful. I've been using SPI with the libMPSSE library for the FTDI to talk with the radar, but downloading firmware is very slow, taking over half an hour. My question is this: In the mmwave_example.exe program in mmWave DFP, what interface is used to write commands to the AWR1243 and what interface is used to download firmware onto it? Are they the same?

    Regards,
    Maynard

  • 0 in reply to May
    TI__Guru 58035 points

    Hello Maynard,

    SPI interface is used to download the FW and send the commands. It should not take half hour for this. At what point is it waiting? For the HOST IRQ to go high?

    regards,

    Vivek