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TSW 14J56 EVM

Stelvio Simonetti
Prodigy 10 points

I need to build an echo generator for testing an L band receiver composed by 8 channels for bandwidth range: 0÷400 MHz and n.2 channels for bandwidth range: 0÷500 MHz

The characteristic of the single channel tx is:

Bandwidth range: 0÷500 MHz

Center frequency output: 900MHz÷1200 MHz

PRF Configurable: 500 ÷ 7000 Hz

Pulse Width: 4 μs ÷ 100 μs

Tx duty cycles range: 2 ÷ 15 %

Rx duty cycles range: 10 ÷ 95 %

Power Output: 0 dBm ÷ -80 dBm

I would have other questions to ask.

The system I would like to use consists of the following T.I.  boards;

  1. 2 TSW 14J56 EVM boards and n.2  DAC 38J84 EVM boards for evm  and n.1  LMK 04832 EVM board  for the synchronous generation of n.8 RF chirps signals  up to   2400 MHz  for bandwidth range: 0÷400 MH.

The system  is also composed of the following cards for the  generation of n.2  RF chirps signals  by modulators

  1. 1 TSW 14J56 EVM boards and n.1  TSW  38J84 EVM boards and n.1  LMK 04832 EVM board  for the synchronous generation of n.2  RF chirps signals  up to  2400 MHz  with modulators for bandwidth range: 0÷500 MHz bandwidth.

In order to configure the i various individual parameters board, I will use your panel SW ( GUI) supplied by means the USB port.

In order to configure all the EVM Boards, I need to insert a USB hub  and select one card at a time. Do you confirm to insert  a USB Hub 3.0.

Is it possible to configure the N. 3  SW (GUI) related to the single EVM Boards with a single pc?

It is possible to modify the various internal registers of the EVM boards during the normal operational through SPI link, without having to load the single panel Sw ( GUI). If yes, how can I do………..

What are the connectors J24  ( DAC SPI) and J25  ( LMK SPI )located on the DAC 3XJ8X EVM board?

What are the connectors J9 ( DAC SPI) and J10 (  LMK SPI )located on the TSW 38J84 EVM  board?

The system, after having loaded once the data from the PC into the DDR memory of the TSW cards, will have to generate the 8 echo signals from the DAC boards in loop mode.

The start echo generation signals will be synchronous with the appropriately delayed external PRI signal without having to reload the memory from USB.

At the end of the DDR memory unloading process , the echo generation signals must be initialized with the PRI signal without having to reload the memory from USB.

 Thanks for collaboration

Stelvio

  • 0
    TI__Guru* 91947 points

    Stelvio,

    You can use the USB3.0 hub but only with the TSW14J56 boards. These boards are enumerated and one version  of HSDC Pro can be used to connect to all of them but only one at a time. The DAC boards are not enumerated and you cannot do this with them. You will need separate PC's or only connect to one DAC board at a time with one PC. 

    J24 allows you to monitor the DAC SPI and JTAG signals or bring them in using an external source.8547.CPLD files.zip 

    J25 does the same but for the LMK device. The CPLD code used by the CPLD that interfaces to these connectors is attached. 

    Regards,

    Jim

      

  • 0
    Prodigy 10 points

    In my system I have the possibility to use only one PC which will have to configure all 7 EVM boards cards via USB . Clearly the EVM boards will always be configured one at a time. That's why I asked you if it was possible to use the SPI bus directly on the EVM boards, without to use usb port , so through a LAN / SPI controller I could always individually configure the boards. Thanks for collaboration. Stelvio