Added bootloader for MKR1000

Author: cmaglie

boards.txt

@@ -102,15 +102,15 @@ mkr1000.pid.2=0x824e
 mkr1000.vid.2.build.vid=0x2341
 mkr1000.vid.2.build.pid=0x824e
 mkr1000.vid.2.build.usb_product="Genuino MKR1000"
-mkr1000.vid.2.bootloader.file=mkr1000/samd21_sam_ba_genuino.bin
+mkr1000.vid.2.bootloader.file=mkr1000/samd21_sam_ba_genuino_mkr1000.bin
 
 mkr1000.vid.3=0x2341
 mkr1000.pid.3=0x024e
 # If the board is a 2341:024e use 2341:824e for build and set other parameters as well
 mkr1000.vid.3.build.vid=0x2341
 mkr1000.vid.3.build.pid=0x824e
 mkr1000.vid.3.build.usb_product="Genuino MKR1000"
-mkr1000.vid.3.bootloader.file=mkr1000/samd21_sam_ba_genuino.bin
+mkr1000.vid.3.bootloader.file=mkr1000/samd21_sam_ba_genuino_mkr1000.bin
 
 mkr1000.upload.tool=bossac
 mkr1000.upload.protocol=sam-ba
@@ -131,4 +131,4 @@ mkr1000.build.variant=mkr1000
 mkr1000.build.vid=0x2341
 mkr1000.build.pid=0x804e
 mkr1000.bootloader.tool=openocd
-mkr1000.bootloader.file=mkr1000/samd21_sam_ba.bin
+mkr1000.bootloader.file=mkr1000/samd21_sam_ba_arduino_mkr1000.bin

bootloaders/mkr1000/README.md

@@ -0,0 +1,6 @@
+
+The source code of the bootloader is in the folder:
+
+  bootloader/zero/
+
+