I was checking my FTDI adapter reset lines, and found out that they don't seem to toggle properly. My JTAG adapter can really only push-pull the reset lines, so I set both resets up as push-pull types (I don't have any output enables on the lines). The adapter is wired so that I have the GPIOxL lines (1,2,3, 0 is rtck) available to become a reset. Currently I have selected lines 1 & 2, so I've used the following lines:
ftdi_layout_init 0x0068 0x006B ftdi_layout_signal nTRST -ndata 0x0020 ftdi_layout_signal nSRST -ndata 0x0040 This is after fooling around with the lines for a while and producing no results at all, meaning, on a scope, all I would see is the lines being driven high. When I turned on debug, I only ever see reset getting called once, with arguments of 0,0 for ntrst and nsrst. I would have expected that reset would get called again after delaying for "width" milliseconds to change the reset line state (i.e. I would expect the line to start high, given my init parameters, then go low during the reset period, then be pulled high again after the reset period). Is this not what is supposed to happen? I am probably misunderstanding how OpenOCD reset is supposed to work, but that is certainly the result I would like to produce. ------------------------------------------------------------------------------ November Webinars for C, C++, Fortran Developers Accelerate application performance with scalable programming models. Explore techniques for threading, error checking, porting, and tuning. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk _______________________________________________ OpenOCD-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/openocd-devel
