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digistump-sam/variants/digix/debug_scripts/gcc/arduino_due_x_flash.gdb

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+#*******************************************************
+#
+#  Connect to J-Link and debug application in flash on SAM3X.
+#
+
+# Define 'reset' command
+define reset
+
+# Connect to the J-Link gdb server
+target remote localhost:2331
+
+# Reset the chip to get to a known state
+monitor reset
+
+# Select flash device
+monitor flash device = AT91SAM3X8E
+
+# Enable flash download and flash breakpoints
+monitor flash download = 1
+
+# Load the program
+load
+
+# Reset peripheral (RSTC_CR)
+set *0x400e1a00 = 0xA5000004
+
+# Initialize PC and stack pointer
+mon reg sp=(0x80000)
+#set *0x80004 = *0x80004 & 0xFFFFFFFE
+mon reg pc=(0x80004)
+
+info reg
+
+break main
+
+# End of 'reset' command
+end

digistump-sam/variants/digix/debug_scripts/gcc/arduino_due_x_sram.gdb

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+#*******************************************************
+#
+#  Connect to J-Link and debug application in sram on SAM3X.
+#
+
+# Define 'reset' command
+define reset
+
+# Connect to the J-Link gdb server
+target remote localhost:2331
+
+# Reset the chip to get to a known state
+monitor reset
+
+# Select flash device
+monitor flash device = AT91SAM3X8E
+
+# Enable flash download and flash breakpoints
+monitor flash download = 1
+
+# Load the program
+load
+
+# Reset peripheral (RSTC_CR)
+set *0x400e1a00 = 0xA5000004
+
+# Initialize PC and stack pointer
+mon reg sp=(0x20000000)
+#set *0x20000004 = *0x20000004 & 0xFFFFFFFE
+mon reg pc=(0x20000004)
+
+info reg
+
+break main
+
+# End of 'reset' command
+end