[Xc3sprog-users] Trouble opening FT2232-based "cable" with xc3sprog

[Daniel K. <dk...@ki...>]

Hello,

I'm trying to get xc3sprog working to program an XC9572XL using an FT2232H-based module. I've managed to get it to compile, but it fails to open the device:

% ./xc3sprog -c ftdi
XC3SPROG (c) 2004-2011 xc3sprog project $Rev: 655 $ OS: Linux
Free software: If you contribute nothing, expect nothing!
Feedback on success/failure/enhancement requests:
	
http://sourceforge.net/mail/?group_id=170565 
Check Sourceforge for updates:
	
http://sourceforge.net/projects/xc3sprog/develop

Could not open FTDI device (using libftdi): device not found
Unable to access FTDI device with either libftdi or FTD2XX

The FT2232 works ok in UART mode, and starts up ftdi_sio and usbserial automatically, and other programs are opening the device ok (eg. my eeprom reprogramming code).

I have been building a variety of libusb and libftdi libraries (to program the FT2232H's EEPROM) so my linux setup now has a mix of libusb0.1, libusb1.0, libftdi1 and libftdi2, which may be complicating matters.

% ldd ./xc3sprog 
	linux-gate.so.1 =>  (0xb76ef000)
	libftdi.so.1 => /usr/lib/libftdi.so.1 (0xb76db000)
	libusb-0.1.so.4 => /lib/libusb-0.1.so.4 (0xb76d3000)
	libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb75dd000)
	libm.so.6 => /lib/i686/cmov/libm.so.6 (0xb75b7000)
	libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb7599000)
	libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb7453000)
	/lib/ld-linux.so.2 (0xb76f0000)

Here are some ltrace and strace outputs from near the end of the execution:

ltrace:
...
ftdi_new(0xbf8e0786, 0x9d32c36, 47, 0xb7791a16, 0xb74fe866)                                           = 0x9d348e8
ftdi_set_interface(0x9d348e8, 0, 47, 0xb7791a16, 0xb74fe866)                                          = 0
ftdi_usb_open_desc(0x9d348e8, 1027, 24592, 0xbf8e0786, 0)                                             = -3
ftdi_get_error_string(0x9d348e8, 1027, 24592, 0xbf8e0786, 0)                                          = 0xb777925b
fprintf(0xb762e560, "Could not open FTDI device (usin"...Could not open FTDI device (using libftdi): device not found
)                                            = 61
ftdi_free(0x9d348e8, 0x807ee00, 0xb777925b, 0xbf8e0786, 0)                                            = 4641
fwrite("Unable to access FTDI device wit"..., 1, 59, 0xb762e560Unable to access FTDI device with either libftdi or FTD2XX
)                                      = 59
exit(1 <unfinished ...>
+++ exited (status 1) +++

The high level code seems to be looking for the correct device (0403:6010)...

strace:
...
open("/dev/bus/usb/002/001", O_RDWR)    = 3
ioctl(3, USBDEVFS_IOCTL, 0xbfdc79d4)    = 3
close(3)                                = 0
open("/dev/bus/usb/001", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
getdents(3, /* 3 entries */, 32768)     = 48
open("/dev/bus/usb/001/001", O_RDWR)    = 4
ioctl(4, USBDEVFS_CONNECTINFO, 0xbfdc79d8) = 0
read(4, "\22\1\20\1\t\0\0@k\35\1\0\6\2\3\2\1\1"..., 18) = 18
read(4, "\t\2\31\0\1\1\0\340"..., 8)    = 8
read(4, "\0\t\4\0\0\1\t\0\0\0\7\5\201\3\2\0\377"..., 17) = 17
close(4)                                = 0
getdents(3, /* 0 entries */, 32768)     = 0
close(3)                                = 0
open("/dev/bus/usb/001/001", O_RDWR)    = 3
ioctl(3, USBDEVFS_IOCTL, 0xbfdc79d4)    = 3
close(3)                                = 0
open("/dev/bus/usb/004/002", O_RDWR)    = 3
ioctl(3, USBDEVFS_CONTROL, 0xbfdc78a0)  = 4
ioctl(3, USBDEVFS_CONTROL, 0xbfdc78a0)  = 20
close(3)                                = 0
write(2, "Could not open FTDI device (using"..., 61Could not open FTDI device (using libftdi): device not found
) = 61
write(2, "Unable to access FTDI device with"..., 59Unable to access FTDI device with either libftdi or FTD2XX
) = 59
exit_group(1)                           = ?

It appears to be identifying the correct low level device:

% lsusb
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0403:6010 Future Technology Devices International, Ltd FT2232C Dual USB-UART/FIFO IC
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

But presumably what is coming back from one or other of the ioctl(USBDEVFS_CONTROL) is not satisfying libftdi.

Before I dig any further, does anyone have any suggestions?
What versions of the libraries are known to work with current xc3sprog code?
Are there any debug switches I can turn on that might clarify what is going on?

Many thanks,

Daniel Kirkham