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--- doc:crazyflie:bootloader:index [2015-03-09 14:27]
arnaud
+++ doc:crazyflie:bootloader:index [2020-05-18 13:45]
kimberly
@@ Line 1: / Line 1: @@
+<WRAP center round important 60%>
+This page has deprecated and moved to the new documentation framework of the main Bitcraze website. Please go to [[https://www.bitcraze.io/documentation/system/]] or
+[[https://www.bitcraze.io/documentation/repository/]]
+</WRAP>
+====== Crazyflie bootloader ======
+The Crazyflies have a radio bootloader pre-programmed. It allows to flash all firmwares over the air using Crazyradio. The boot loaders cannot erase themselves so it is always possible to restart the Crazyflie in bootloader mode.
+For technical documentation go to:
+  * [[doc:crazyflie:bootloader:protocol|Bootloader protocol and architecture]]
+  * [[doc:crazyflie:bootloader:client|Bootloader client implementation]]
+====== Entering bootloader ======
+The bootloader can be entered in two ways: Cold-boot and warm-boot.
+===== Cold booting =====
+The procedure to cold-boot the bootloader depends of which Crazyflie you are using.
+For Crazyflie 1 start the bootloading sequence on the PC and restrart the Crazyflie.
+For Crazyflie 2, press the ON/OFF switch more than 1.5 second until the blue led blinks. Then release the button and the two blue leds should blink.
+===== Warm booting =====
+Warm booting is done when the Bootloader client restarts the Crazyflie in bootloader more automatically. While implemented in firmware this mode is not yet implemented in the PC client.

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