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Hi, I am trying WARPLab 7 Example: 8x2 Array with a little change. That is, I put all 3 nodes in a daisy-chain, i.e., TX1->TX2->RX.
I use the version 7.4.0. The sip switch I set are
TX1: 10, TX2: 01, RX: 11, while it's the opposite in the page http://warpproject.org/trac/wiki/WARPLa … ion/WARPv3
TX1: 01, TX2: 10, RX: 00.
The system only works in my way of setting the sip switch (run 8x2 array m.file and the figure comes up). If I set the sip switch as indicated in the above page. It doesn't work (The LED displays wrongly or the lights for RF keep blinking).
Can you tell me if I should use the former setting?
Thanks!
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The CM-MMCX and CM-PLL switch settings were changed in WARPLab 7.5, as described on that page. Please update to WL 7.5.
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ok, will change to version 7.5.
Also if 3 nodes are daisy-chained, will the trigger sync between TX1 and TX2 work all the same?
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With the CM-MMCX inter-node triggers must be connected via the debug headers, same as before. Refer to the URL above for the current pin map. With the CM-PLL the trigger signals are routed over the same ribbon cable as the reference clock.
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I changed to WL7.5.0 and set the sip switch accordingly. It works ok. But I observed that every time the RF transmit/receives data, a different one of D8-D11 lights turns on. Is this normal?
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Yes. We updated WARPLab 7.5.x to one-hot increment the green LEDs on every received Ethernet packet and every transmitted Ethernet packet. Since Ethernet transfer times can be much longer when using large buffers, we wanted to make sure there was a physical indication that the board was operating correctly.
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Can you confirm that the maximum value of 'txLength' in WL 7.5 can be much larger than 2^15? Because the following command gives a value of 58720256.
maximum_buffer_len = wl_basebandCmd(node_tx, RF_TX, 'tx_buff_max_num_samples');
Does it mean that I can transmit a packet with say, 2^16 samples?
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Can you confirm that the maximum value of 'txLength' in WL 7.5 can be much larger than 2^15? Because the following command gives a value of 58720256.
Yes. This is fully documented in the user guide.
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