On Tue, Jul 7, 2009 at 11:18 PM, David Brownell<[email protected]> wrote: > On Tuesday 07 July 2009, Ųyvind Harboe wrote: >> --- C:/workspace/openocd/tcl/target/imx27.cfg (revision 2491) >> +++ C:/workspace/openocd/tcl/target/imx27.cfg (working copy) >> @@ -1,5 +1,6 @@ >> -#use combined on interfaces or targets that can't set TRST/SRST separately >> -reset_config trst_and_srst >> +# page 3-34 of "MCIMC27 Multimedia Applications Processor Reference Manual, >> Rev 0.3" >> +# SRST pulls TRST >> +reset_config srst_only srst_pulls_trst > > Is it really true that there is no TRST signal on these chips? > And that somehow all boards with those chips include SRST? > > I can believe the chip requires "reset_config srst_pulls_trst". > > But I have a hard time believing "srst_only" is anything but > a board-specific constraint.
The TRST is tied to SRST on the *inside* of the chip if I understood correctly. I'm not sure if there is a difference between "srst_pulls_trst srst_only" and "srst_pulls_trst" from the arm926ejs codepaths point of view. -- Øyvind Harboe Embedded software and hardware consulting services http://www.zylin.com _______________________________________________ Openocd-development mailing list [email protected] https://lists.berlios.de/mailman/listinfo/openocd-development
