On Thu, Jun 9, 2011 at 10:17 PM, Tomek CEDRO <tomek.ce...@gmail.com> wrote:
> Hello Laurent! :-) > > On Thu, Jun 9, 2011 at 6:21 AM, Laurent Gauch <laurent.ga...@amontec.com> > wrote: > > But before to close the handle we should still be able : > > -1- to tristate signal High-Z via all the out enable signals used in the > > specific layout, BUT BUT BUT ONLY if we have entered in the MPSSE mode. > > The whole driver works in MPSSE mode... > > > (If you have a Amotnec JTAGkey-2 you may verifiy this by checking the > > external yellow LED. This LED should be OFF after any quit/shutdown) > > As I explained with the TRST and OMAP in previous message ... > > I have created simple quit() that sets all port pins high and as input > (mpsse command 0x80 0x82) but that did not shut down the yellow led > :-( > Since the suitable setting depends on the mapping of the GPIOs and the surrounding electronics, the quit function would probably need to be layout specific, as Laurent mentioned. > Do you have any other ideas on what should be done on ft2232_quit() > except rtck, hi-z, div5..? I can prepare a patch, or Peter will as I > can see he is already working out the subject :-) What problem is setting pins to a default state on exit supposed to solve? Are we sure this is what we want? If I make openocd pull the reset line and then quit openocd, I'd expect the target to remain in reset. If I quit openocd while the target is running, I'd expect it to keep on running. How would that work if we make this change? /Andreas
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