Just got my new ARM-USB-TINY-H today. It (supposedly) has the USB 2.0
High-Speed FT2232 in it, so it ought to be able to run at a TCK of at
least 12Mhz (perhaps up to 24Mhz?).
Unfortunately I've run into two problems:
1. The "detect" command hangs with these messages:
Connected to libftdi driver.
Setting TCK frequency to 6000000 Hz
IR length: 58
Chain length: 5
Device Id: 10100010101011010110000010010011 (0x00000000A2AD6093)
Filename: misc/bsdl/xc5vlx110t_ff1738_1532.bsd
Device Id: 00001010000000000001000010010011 (0x000000000A001093)
Filename: misc/bsdl/xccace.bsd
Device Id: 01011001011000001000000010010011 (0x0000000059608093)
Filename: misc/bsdl/xc95144xl.bsd
Device Id: 11110101000001011001000010010011 (0x00000000F5059093)
Filename: misc/bsdl/xcf32p.bsd
Device Id: 11110101000001011001000010010011 (0x00000000F5059093)
Filename: misc/bsdl/xcf32p.bsd
usbconn_ftdi_flush(): Received fewer bytes than requested.
usbconn_ftdi_flush(): Received fewer bytes than requested.
^C
2. If I program in the lengths of the instruction registers on the
chain manually, I can get it to program my board, but it appears
to be no faster than the USB 1.0 version. Moreover, the
"frequency" command appears to have no effect on the amount of
time required -- even when I set it well below 6Mhz, it doesn't
take any longer than the USB 1.0 cable did at 6Mhz.
Any ideas?
Thanks,
- a
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