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Old Jan 29, 2016, 06:07 PM
Miniclip12 is offline
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Hello, I am having trouble flashing the f20a escs from h-king. I had the same problem as this earlier post
Originally Posted by kiliam View Post
I am having a problem, trying to flash some hobbyking f-20a.
I am using an arduino with arduinosip sketch and i think i have everything well wired but using kkflashtool just gives me this:

Flash the firmware file.
Flashing firmware from file.: C:\Users\cortez\Downloads\tgy_2012-03-01_2e27c08\bs_nfet.hex

C:\Users\cortez\Downloads\kkmulticopterflashtool_0 .60beta10\lib\avrdude\windows\avrdude.exe -C C:\Users\cortez\Downloads\kkmulticopterflashtool_0 .60beta10\lib\avrdude\windows\avrdude.conf -p m8 -P COM3 -c arduino -B 8 -e -U flash:w:C:\Users\cortez\Downloads\tgy_2012-03-01_2e27c08\bs_nfet.hex:i

avrdude.exe: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.02s

avrdude.exe: Device signature = 0x1e950f
avrdude.exe: Expected signature for ATmega8 is 1E 93 07
Double check chip, or use -F to override this check.

avrdude.exe done. Thank you.

Error during writing flash.

Any suggestion?
so I tried the solution of addin the 10uf capacitor here
Originally Posted by alteskind View Post
No, they didnt switch the chip, and it wont brick the ESC, as it wont flash the ESC .

the F-20A has an atmega8.

there is no problem to flash it using an arduino.
but u need a 120ohm resistor or a small capacitor (>10μF ) to disable autoreset on arduino

Reason for your problem: if you try to flash it with an arduino, unless switching arduino auto-reset off, the flashprog will flash your arduino instead of the ESC.

the solution is adding a 20μF capacitor between the RESET and GND lines (at arduino nano )
i used my arduino nano to flash my turnigy 9x, and it worked fine with this patch.

another way to disable autoreset using a resistor is described here. as i didnt have a 120ohm resistor, i did it the capacitor-way

those arduinoos are soooo useful, i like them.
but now I am getting this error:

/Applications/kkMulticopter Flash -C /Applications/kkMulticopter Flash -p m8 -P /dev/cu.wchusbserialfa130 -c arduino -b 57600 -e -U lfuse:r:/Users/Abhishek/Library/Preferences/kkMulticopterFlashTool//lfuse.hex:r -U hfuse:r:/Users/Abhishek/Library/Preferences/kkMulticopterFlashTool//hfuse.hex:r
avrdude: stk500_recv(): programmer is not responding

avrdude done. Thank you.Error during reading of high fuse.

Flashing of firmware aborted.

I have tried everything and nothing has worked. plz so confused
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