On 12/28/2009 11:50 AM, Adam Megacz wrote: > > 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? > I just did a test using our gnICE and gnICE+ cables. To program 165KB into flash:
gnICE 8m30s @ 6MHz gnICe+ 1m29s @ 30MHz gnICe+ 1m34s @ 15MHz gnICe+ 2m05s @ 6MHz We are using a rather old UrJTAG and have several our patches on it. But I think it might not be related to ft2232h issues. Is updating libftdi to the lastest release helps? It contains several fixes for ft2232h supporting. Jie ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ UrJTAG-development mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/urjtag-development
