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authorjcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5>2008-09-08 01:00:12 +0000
committerjcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5>2008-09-08 01:00:12 +0000
commit61f2f0214c5999ea42a368a4fc99f03d8eb28d1e (patch)
treee7e24a9adc05ff1422fe3ada9926a51634741b47 /eth/bench/verilog/pause.scr
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Merged r9433:9527 from features/gr-usrp2 into trunk. Adds usrp2 and gr-usrp2 top-level components. Trunk passes distcheck with mb-gcc installed, but currently not without them. The key issue is that when mb-gcc is not installed, the build system skips over the usrp2/firmware directory, and the firmware include files don't get put into the dist tarball. But we can't do the usual DIST_SUBDIRS method as the firmware is a subpackage.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9528 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'eth/bench/verilog/pause.scr')
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1 files changed, 45 insertions, 0 deletions
diff --git a/eth/bench/verilog/pause.scr b/eth/bench/verilog/pause.scr
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+// This test demonstrates the ability to transmit a PAUSE frame, and the effect of
+// a PAUSE frame on the receiver
+
+// Read from register 24 to confirm that Rx CRC check is enabled
+03 00 18 00 01 ff ff
+
+// Set speed to 1000 Mbps
+01 00 22 00 04
+
+// Setup Tx and Rx MAC addresses and type field to "IP"
+// Set Tx Data at offset 0, length 14 to 123456789ABC CBA987654321 0800
+10 00 00 00 0E 12 34 56 78 9A BC CB A9 87 65 43 21 08 00
+
+// Set PAUSE quanta to 256 - corresponding to a pause of 256x512 = 128Kb = 16KB
+01 00 03 01 00
+
+// Enable the transmitter to send a PAUSE frame
+01 00 02 00 01
+
+// Enable the transmitter to react to received PAUSE frames
+01 00 0b 00 01
+
+// Expect to receive a PAUSE frame with quanta 256
+24 01 00
+
+// Transmit a 512-byte frame 1 time - and expect it to be received again!
+20 02 00 00 01
+
+// Request the transmission of a PAUSE frame - it will loopback to ourselves and delay
+// further transmission for a period of 16 KB, causing a significant (visible) delay
+// between first and second 512-byte frame!
+01 00 0c 00 01
+
+// - now this second time, we will experience a delay
+// Transmit a 512-byte frame 1 time - and expect it to be received again!
+20 02 00 00 01
+// - and a final 3rd time
+// Transmit a 512-byte frame 1 time - and expect it to be received again!
+20 02 00 00 01
+
+// Wait (indefinitely) for missing Rx packets
+22 00 00
+
+// Halt
+FF