FOTB - Firmware Over The Bus - Revision history

E.burkowski at 13:52, 12 March 2018

2018-03-12T13:52:53Z

Konnekting at 13:14, 12 March 2018

2018-03-12T13:14:18Z

E.burkowski at 09:44, 12 March 2018

2018-03-12T09:44:56Z

E.burkowski at 08:48, 8 March 2018

2018-03-08T08:48:27Z

Konnekting at 17:03, 7 March 2018

2018-03-07T17:03:14Z

Konnekting: Created page with "See: https://github.com/arduino/ArduinoCore-samd/pull/220 Steps: Get SDUBoot.ino from https://github.com/arduino/ArduinoCore-samd/tree/master/libraries/SDU/extras/SDUBoot. U..."

2018-03-07T14:00:21Z

Created page with "See: https://github.com/arduino/ArduinoCore-samd/pull/220 Steps: Get SDUBoot.ino from https://github.com/arduino/ArduinoCore-samd/tree/master/libraries/SDU/extras/SDUBoot. U..."

New page

See: https://github.com/arduino/ArduinoCore-samd/pull/220

Steps:

Get SDUBoot.ino from https://github.com/arduino/ArduinoCore-samd/tree/master/libraries/SDU/extras/SDUBoot. Use this as starting point for an own version, let's say we name our version "MyBoot"

So we will have

MyBoot\
MyBoot\EFUBoot.ino

and we also need

MyBoot\boot
MyBoot\build.sh

build.sh should contain something like this:

<syntaxhighlight lang=bash line>
#!/bin/sh -x

ARDUINO=$ARDUINO_HOME/arduino
SKETCH_NAME="MyBoot.ino"
SKETCH="$PWD/$SKETCH_NAME"
BUILD_PATH="$PWD/build"
OUTPUT_PATH="./boot"

if [[ "$OSTYPE" == "darwin"* ]]; then
ARDUINO="/Applications/Arduino.app/Contents/MacOS/Arduino"
fi

buildSDUBootSketch() {
BOARD=$1
DESTINATION=$2

$ARDUINO --verify --board $BOARD --preserve-temp-files --pref build.path="$BUILD_PATH" $SKETCH
cat "$BUILD_PATH/$SKETCH_NAME.bin" | xxd -i > $DESTINATION
rm -rf "$BUILD_PATH"
}

mkdir -p "$OUTPUT_PATH"

buildSDUBootSketch "arduino:samd:arduino_zero_edbg" "$OUTPUT_PATH/zero.h"
</syntaxhighlight>

Make it executable with help of

chmod g+x build.sh

And finally run it with

./build.sh

After that, you have a .h file in your boot-folder.

@@ Line 79: / Line 79: @@
 *(.text*)</syntaxhighlight>
-# .sketch_boot will be used only with/for 2nd stage bootloader.
+.sketch_boot will be used only with/for 2nd stage bootloader. this section is defined in sdu.cpp:
-# .isr_vector is user sketch. if 2nd stage doesn't exist, user sketch will be placed on 0x2000, other way it will be placed right after 2nd stage bootloader (0x2000 + 0x4000(size of 2nd stage bootloader) => 0x6000).
+<syntaxhighlight>__attribute__ ((section(".sketch_boot")))

← Older revision		Revision as of 13:14, 12 March 2018
Line 81:		Line 81:
	# .sketch_boot will be used only with/for 2nd stage bootloader.		# .sketch_boot will be used only with/for 2nd stage bootloader.
	# .isr_vector is user sketch. if 2nd stage doesn't exist, user sketch will be placed on 0x2000, other way it will be placed right after 2nd stage bootloader (0x2000 + 0x4000(size of 2nd stage bootloader) => 0x6000).		# .isr_vector is user sketch. if 2nd stage doesn't exist, user sketch will be placed on 0x2000, other way it will be placed right after 2nd stage bootloader (0x2000 + 0x4000(size of 2nd stage bootloader) => 0x6000).
		+
		+
		+
		+	= KONNEKTING FOTB Workflow =
		+
		+	to be done

← Older revision		Revision as of 09:44, 12 March 2018
Line 60:		Line 60:

	If you now apply you update according to your own SDUBoot variant and reboot your arduino, the new sketch is applied to main memory and arduino starts up with the new sketch.		If you now apply you update according to your own SDUBoot variant and reboot your arduino, the new sketch is applied to main memory and arduino starts up with the new sketch.
		+
		+
		+	Some additional information:
		+	https://github.com/arduino/ArduinoCore-samd/issues/247
		+
		+	Normaly the ardunio Bootloader is placed on 0x0000 address on internal flash and a user sketch starts on 0x2000.
		+
		+	With the so called "2nd stage bootloader" you have:
		+	# the normal arduino bootloader on 0x0000, which is resposible for USB-Sketch updates
		+	# 2nd stage bootloader placed on 0x2000 instead of user sketch
		+	# user sketch placed on 0x6000
		+
		+	linker script, that builds firmware file for arduino update, has two sections:
		+
		+	<syntaxhighlight>KEEP(*(.sketch_boot))
		+	. = ALIGN(0x2000);
		+	KEEP(*(.isr_vector))
		+	(.text)</syntaxhighlight>
		+
		+	# .sketch_boot will be used only with/for 2nd stage bootloader.
		+	# .isr_vector is user sketch. if 2nd stage doesn't exist, user sketch will be placed on 0x2000, other way it will be placed right after 2nd stage bootloader (0x2000 + 0x4000(size of 2nd stage bootloader) => 0x6000).

← Older revision		Revision as of 17:03, 7 March 2018
Line 53:		Line 53:

	After that, you have a .h file in your boot-folder.		After that, you have a .h file in your boot-folder.
		+
		+	Copy/paste SDU.cpp/SDU.h and let them point to the .h file you just created.
		+
		+	Write your sketch and include your version of SDU.h/SDU.cpp with "#include".
		+	Upload your sketch as usual.
		+
		+	If you now apply you update according to your own SDUBoot variant and reboot your arduino, the new sketch is applied to main memory and arduino starts up with the new sketch.

@@ Line 3: / Line 3: @@
 Steps:
-Get SDUBoot.ino from https://github.com/arduino/ArduinoCore-samd/tree/master/libraries/SDU/extras/SDUBoot. Use this as starting point for an own version, let's say we name our version "MyBoot"
+Get SDUBoot.ino from https://github.com/arduino/ArduinoCore-samd/tree/master/libraries/SDU/extras/SDUBoot. Use this as starting point for an own version, let's say we name our version "EFUBoot"
 So we will have
-  MyBoot\
+  EFUBoot\
-  MyBoot\EFUBoot.ino
+  EFUBoot\EFUBoot.ino
 and we also need
-  MyBoot\boot
+  EFUBoot\boot
-  MyBoot\build.sh
+  EFUBoot\build.sh
 build.sh should contain something like this:
@@ Line 21: / Line 21: @@
 ARDUINO=$ARDUINO_HOME/arduino
-SKETCH_NAME="MyBoot.ino"
+SKETCH_NAME="EFUBoot.ino"
 SKETCH="$PWD/$SKETCH_NAME"
 BUILD_PATH="$PWD/build"