>>>>> "Hendrik" == Hendrik <[email protected]> writes:
...
Hendrik> They are there but a bit hidden:
Hendrik> http://pastebin.com/raw.php?i=3Vwk2NAs You can see that the
Hendrik> packet with size 327 comes in with 0162 and the following
Hendrik> packets show 0160 again.
5.977422 1<-- 33: 0160 0202 0619 001f 4000 0100 0102 ...
5.978486 1<-- 52: 0160 1617 1819 1a1b 1c1d 1e1f 2021 ...
5.985341 1<-- 327: 0162 4849 4a4b 4c4d 4e4f 5051 5253 ...
5.986459 1<-- 52: 0160 a5a6 a7a8 a9aa abac adae afb0 ...
5.987462 1<-- 44: 0160 d7d8 d9da dbdc ddde dfe0 e1e2 ...
More remarks:
- About 8 ms elapsed between the second and the third call. This is doomed for
overflow.
- Transfers only happen in milisecond frame. Is your USB hub not USB high
speed?
- You transfer short packages due to the 1 ms latency. 1 ms with about 50
bytes is too small to fill up the USB buffer with 62 bytes.
Try to set latency to 2 ms. Then you transfer full 62 byte buffers.
Bye
--
Uwe Bonnes [email protected]
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
--
libftdi - see http://www.intra2net.com/en/developer/libftdi for details.
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