From 01a5d87d5f5788542c5d26da1c19fa4e634adc10 Mon Sep 17 00:00:00 2001 From: oharboe Date: Wed, 5 Mar 2008 19:29:41 +0000 Subject: - This speeds up dcc arm7_9 bulk write a little bit and exercises the jtag_add_dr_out() codepath - added a check to jtag_add_pathmove() for legal path transitions - tweaked jtag.h docs a little bit - made some jtag bypass tests _DEBUG_JTAG_IO_ git-svn-id: svn://svn.berlios.de/openocd/trunk@448 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/jtag/jtag.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/jtag/jtag.h') diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index ada3b49d..fe240eb6 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -270,6 +270,9 @@ extern int interface_jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields * * - Run-Test/Idle must not be entered unless requested, because R-T/I may have * side effects. + * + * NB! a jtag_add_statemove() to the current state is not + * a no-operation. */ extern int jtag_add_statemove(enum tap_state endstate); extern int interface_jtag_add_statemove(enum tap_state endstate); @@ -278,6 +281,9 @@ extern int interface_jtag_add_statemove(enum tap_state endstate); * XScale and Xilinx support * * Note! TAP_TLR must not be used in the path! + * + * Note that the first on the list must be reachable + * via a single transition from the current state. */ extern int jtag_add_pathmove(int num_states, enum tap_state *path); extern int interface_jtag_add_pathmove(int num_states, enum tap_state *path); -- cgit v1.2.3-18-g5258