On Sat, May 30, 2009 at 8:01 PM, David Brownell <[email protected]> wrote: >> >> +If you have an interface that does not support SRST and >> >> +TRST(unlikely), >> > >> > Not unlikely at all. The 14-pin JTAG connectors >> > that TI uses don't pass SRST. The 10-pin JTAG >> > connectors that Atmel uses with AVR8 (and AVR32) >> > chips don't pass TRST. (Although there's a pin >> > reserved for TRST. It's unclear if *any* JTAG >> > adapters use that, since the only chips supporting >> > that signal are the unclear-future AVR32 AP7s.) >> >> So these are *targets* that don't need or want >> TRST? > > In the Atmel case, yes. > > In the TI case, no. TI boards often come with > both "TI-14" and "ARM-20" JTAG connectors. > So whether you have SRST depends on which kind > of JTAG adapter you use ... not the board, not > the CPU. > http://focus.ti.com/lit/ug/spnu250/spnu250.pdf
I just checked the schematics of the IAR TMS470R1A256 schematics and it comes with both TI-14 and ARM-20 JTAG connectors. There is a TRST pin (pin 2) on the TI-14 pin connector. I do not see the SRST line. -- Xiaofan http://mcuee.blogspot.com _______________________________________________ Openocd-development mailing list [email protected] https://lists.berlios.de/mailman/listinfo/openocd-development
