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b991c41)
An application often idling in real sleep mode may make a Cortex-M target
hard to access as CPU clock are gated and debug requests are responded
by WAIT ack.
Try to examine the target under reset as the last resort.
Change-Id: Ife875a966a838c37dde987bc584ad0a1f4d020d6
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: https://review.openocd.org/c/openocd/+/7228
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
+ /* TODO: replace the hack calling target_examine_one()
+ * as soon as a better reset framework is available */
+ if (!target_was_examined(target) && !target->defer_examine
+ && srst_asserted && (jtag_reset_config & RESET_SRST_NO_GATING)) {
+ LOG_TARGET_DEBUG(target, "Trying to re-examine under reset");
+ target_examine_one(target);
+ }
+
/* We need at least debug_ap to go further.
* Inform user and bail out if we don't have one. */
if (!armv7m->debug_ap) {
/* We need at least debug_ap to go further.
* Inform user and bail out if we don't have one. */
if (!armv7m->debug_ap) {
enum reset_types jtag_reset_config = jtag_get_reset_config();
if ((jtag_reset_config & RESET_HAS_SRST) &&
enum reset_types jtag_reset_config = jtag_get_reset_config();
if ((jtag_reset_config & RESET_HAS_SRST) &&
- !(jtag_reset_config & RESET_SRST_NO_GATING) &&
+ !(jtag_reset_config & RESET_SRST_NO_GATING) &&
armv7m->debug_ap) {
int retval = dap_dp_init_or_reconnect(armv7m->debug_ap->dap);
armv7m->debug_ap) {
int retval = dap_dp_init_or_reconnect(armv7m->debug_ap->dap);
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