2012/11/24 Franck Jullien <[email protected]>: > 2012/11/24 Franck Jullien <[email protected]>: >> 2012/11/23 Franck Jullien <[email protected]>: >>> 2012/11/23 CeDeROM <[email protected]>: >>>> On Fri, Nov 23, 2012 at 10:26 PM, Andreas Fritiofson >>>> <[email protected]> wrote: >>>>> Since 0.6.0 there is a completely rewritten driver for ftdi adapters >>>>> called... ftdi. >>>> >>>> MPSSE ? :-) >>>> >>>> -- >>>> CeDeROM, SQ7MHZ, http://www.tomek.cedro.info >>> >>> Hi, >>> >>> Ok, found it. I also find the configuration file of my JTAG interface >>> updated for ftdi driver use. >>> >>> Thanks. >> >> Hi, >> >> I'm doing some tests with an opencores TAP and debug system using >> openOCD and an ftdi based JTAG interface. >> I'm using the new ftdi driver but I have a problem. >> >> When I want to do a DR SCAN of one bit and then stay in DR SCAN, I >> have TMS signal rising.... >> If someone familiar with the ftdi driver could take a look at the >> waveform and test code: >> >> http://pastie.org/5429202 >> http://picpaste.com/pics/jtag-22Kzxqqn.1353794728.png >> >> (I also tested the ft2232_libftdi driver with the same result). >> >> Franck. > > I forgot to paste the debug logs: > > ------------------------------ > tap state is RUN/IDLE > DRSCAN type:1 > start=RUN/IDLE goal=DRSHIFT > in field 0/1 1 bits > DR scan, 1 bits, end in DRSHIFT > ------------------------------ > tap state is DRSHIFT > DRSCAN type:1 > in field 0/1 1 bits > DR scan, 1 bits, end in DRSHIFT > > > Franck.
And I also forgot to say that after this 1 bit scan, on the next 32 bits DR SCAN, there is not TCK generated, JTAG signals are not moving anymore.... Franck. ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ OpenOCD-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/openocd-devel
