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== Connection == | = Video = <<YouTube(_Hzl1TMr8WU)>> (Thanks to Thiago) = Connection = |
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= Update failed? = In case that the update failed (i.e. because of a bad contact), the program in the controller might be erased. Both LEDs are continously on. Don't worry: the bootloader can't be deleted and the firmware can still be installed. The Bootloader runs after power up for 0,5sec '''reinstall the firmware''' * Start the Update by the !KopterTool * Power up the BL-Board when the PC says "Trying to connect..." * The Bootloader starts after re-powering and can start the update process |
Inhaltsverzeichnis
BL V3 Update
Note: since April 2014, the boards have a version marking
Video
(Thanks to Thiago)
Connection
For the update, three lines must be connected between the MKUSB and the BL-Board
- RXD (Pin 1)
- TXD (Pin 9)
- GND (Pin 7 or at other GND-connection on the BL-Board)
please look onto your board, where it has the 1 marking on the pin-connections
There are different possibilities to make the connections
Solution 1
- Here the GND-Pin connection is done by a simple cable
- RXD and TXD are just held onto the board (update takes only 5-10 seconds)
- GND can be connected to any GND-Connection on the BL-Board - it doesn't have to be the GND of that specific BL that you want to update
Solution 2
Here the Pins are just bended.
Solution 3
Here two pin-connectors are put in series. That creates a very convenient connector.
Update
The Koptertool is used. The procedure is similar to the FC-Update
- Power the BL-Ctrol by a DC power supply. That is better than using a Lipo, because in case of a shortcut, it might not damage the board.
- Press 'Update'
- Select the file
- Repeat the procedure for all BL-Ctrls
- After the update, the BLs will show their current version and address
Update failed?
In case that the update failed (i.e. because of a bad contact), the program in the controller might be erased. Both LEDs are continously on.
Don't worry: the bootloader can't be deleted and the firmware can still be installed.
The Bootloader runs after power up for 0,5sec
reinstall the firmware
Start the Update by the KopterTool
- Power up the BL-Board when the PC says "Trying to connect..."
- The Bootloader starts after re-powering and can start the update process
Firmware
Here you can find the latest versions:
http://mikrocontroller.com/files/BL_V3
Version V1.00f
Since 1st Jan. 2014
- First Version
Version V1.02d
Since 17th March 2014
- Improved motor-start by a self-learning start phase
- internal speed limitation
increased commutating speed (Max RPM is 200.000 devided by the number of magnets -> 16.666 RPM if you have 12magnets)
- Prepared for redundant FC-Operation
Version V1.04c
since 07th May 2014
Download: V1.04c
- better protection against high current peaks during operation
- Safer behavior while operation without propellers
- Integrated watchdog that restarts the BL controllers in case of a failure
- Various bug fixes
we strongly recommend to update to version 1.04c !