Open ocd script update (#16)

* Update max78000.cfg

Adding reset handling scripts to support features of production parts.

* Update max78000.cfg

Changed formatting

Tools/OpenOCD/scripts/target/max78000.cfg

@@ -3,7 +3,8 @@
 
 # Set the reset pin configuration
 reset_config srst_only
-adapter srst delay 200
+adapter srst delay 2
+adapter srst pulse_width 2
 
 # Set flash parameters
 set FLASH_BASE 0x10000000
@@ -17,3 +18,50 @@ set FLASH_OPTIONS 0x01
 transport select swd
 
 source [find target/max32xxx.cfg]
+
+global rom_bp_enabled
+set rom_bp_enabled "no"
+
+# Override default init_reset{mode} to catch parameter "mode"
+proc init_reset {mode} {
+    global sp_reset_mode
+    set sp_reset_mode $mode
+}
+
+$_CHIPNAME.cpu configure -event reset-deassert-post {
+    global sp_reset_mode
+
+    if { ([string compare $sp_reset_mode "init"] == 0) } { 
+        set state "reset"
+        while { [string compare $state "reset"] == 0 } {
+            set state [$_CHIPNAME.cpu curstate]
+            $_CHIPNAME.cpu arp_poll
+        }
+        $_CHIPNAME.cpu arp_halt
+    }
+}
+
+$_CHIPNAME.cpu configure -event reset-assert-pre {
+    global sp_reset_mode
+    global rom_bp_enabled
+
+    if { (([string compare $sp_reset_mode "halt"] == 0) || ([string compare $sp_reset_mode "init"] == 0)) } {
+        halt
+   	if { ([string compare $rom_bp_enabled "yes"] == 0) } { 
+            rbp 0x00002120
+        }
+        bp 0x00002120 2 hw
+        set rom_bp_enabled "yes"
+    }
+}
+
+$_CHIPNAME.cpu configure -event halted {
+    global sp_reset_mode
+    global rom_bp_enabled
+
+    if { ([string compare $rom_bp_enabled "yes"] == 0) } {
+        rbp 0x00002120 
+        set rom_bp_enabled "no"
+    }
+    set sp_reset_mode none
+}