hi everyone,
the last days i tried to get my openocd-usb-adapter working. because it was quite tricky and there are only a few howto’s i decided to create this thread from beginner (linux novice) for beginner :techie-typing: . (using latest git-version)
**my adapter uses the FT2232D and was bought from embedded-projects.net (In-Circuit ICprog OpenOCD).** the manufacturer doesn't earned a price for support :whistle: ;) ...there are two ways to get this thing work with openocd:
-
using the opensource library libftdi, e.g. “libftdi-0.20.tar.gz”
-
using the closed source driver library from ftdichip.com, e.g. “libftd2xx1.1.0.tar.gz”
at first i tried the closed source variant and got following error:
Warn : Unable to open FTDI Device tried: 'Dual RS232' and 'Dual RS232 A'
Error: unable to open ftdi device: device not opened
Error: ListDevices: 2
Error: 0: "Dual RS232 A"
Error: 1: "Dual RS232 B"
in procedure 'init'
i think there will be a way to get this driver work, but before spending further more time, i tried the open source library:
when you use ubuntu linux or similar, you can use apt-get install libftdi-dev and apt-get install openocd and are nearly finished.
when you are using another one (without apt-get :shifty: ), follow this steps:
./configure
/make
/make install
but the openocd-setup needs them in /usr/lib → copy the three files to /usr/lib
the openocd git-repository from june 2012 requires autoconf 2.60!
my ultra cutting edge centos 5.8 only uses autoconf 2.59 and the yum package manager doesn’nt want to upgrade → so install newer version manually:
-
download a package from http://rpm.pbone.net/index.php3/stat/4/ … h.rpm.html or another one for your linux-version.
-
yum install [package].rpm
-
rename /usr/bin/autoconf or delete (backup before)
-
rename or copy /usr/bin/autoconf2.6x to /usr/bin/autoconf
-
now the autoconf command has the right content, but the linux doesn’t know
—> skip test: -
change first line from configure.ac in git repository from “AC_PREREQ(2.60)” to “AC_PREREQ(2.59)”
./bootstrap
./configure --enable-ft2232_libftdi --disable-werror
make -i
make install -i
(the --disable-werror flag don’t let warnings throw errors during make; the “-i” is dirty (ignore errors), but if not using this, some error like “remove ‘openocd.info’” occurs)
thats it 
!
interface ft2232
ft2232_device_desc "Dual RS232 A"
ft2232_layout oocdlink
ft2232_vid_pid 0x0403 0x6010
adapter_khz 4
adapter_nsrst_delay 200
jtag_ntrst_delay 200
[root@toshiba OpenOCD]# openocd -f interface.cfg
Open On-Chip Debugger 0.6.0-dev-00599-ga21affa-dirty (2012-06-25-23:31)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.sourceforge.net/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'jtag'
4 kHz
adapter_nsrst_delay: 200
jtag_ntrst_delay: 200
Info : clock speed 4 kHz
Warn : There are no enabled taps. AUTO PROBING MIGHT NOT WORK!!
Error: JTAG scan chain interrogation failed: all zeroes
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Error: IR capture error at bit 0, saw 0x00 not 0x...3
Warn : Bypassing JTAG setup events due to errors
Warn : gdb services need one or more targets defined
i think thats ok, if no further hardware is connected. (“Error: JTAG scan chain interrogation failed: all zeroes”…:P)
a nice feature of the opensource libftdi library are the examples. they run with my adapter with a small change in the source files:
change the PID from 0x6001 to 0x6010 and the VID to 0x0403 (if necessary). run make and e.g. “./find_all” to run the local executable.
i hope this thread helped somebody getting started with this nice opensource programmer :).
as i wrote in the beginning, i am new to linux. maybe the howto is not complete or inaccurate, but at my laptop it worked fine (centos 5.8 ).
regards
flo