Seeeduino Mega - Uploading Doesn't Work. Bootloader?

End-Of-Life Products & Services Tech support before 2012
#1

I’ve got a new Seeeduino Mega board (v1.1 - 06/24/2009).
When I try to upload, the serial port lights flash once each, then Arduino IDE freezes and I get the error.
“avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51”
It happens on both PC and Mac. I have Arduino board type set to Arduino Mega.

Other forums suggested the problem might be a corrupt bootloader, so (following the 'Hello Seeeduino.pdf) I tried to reprogram the bootloader according to the instructions on:
http://www.geocities.jp/arduino_diecimila/bootloader/index_en.html
That Adruino IDE method doesn’t work, but the Avrdude_GUI works well, until it asks for the fuse codes, which I couldn’t find anywhere on the net.

So my questions are:

  1. Do I have a broken Seeeduino Mega, or just a bad bootloader?
  2. If it’s just a bad bootloader, can you pleaase tell me what the fuse codes are for reprogramming with Avrdude?

Thanks!

#2

we are sorry, it is not working.
Please test:
1.Toggle all the switches to Atmega1280 side;
2.connect to pc;
3.open the Arduino IDE;
4.select board–> Arduino Mega;
5.select the correct com port;
And download a blink sample sketch.

If not work, please try rebootloader it.
Here is the FUSE setting:
hfuse: 0xda
lfuse: 0xff
efuse: 0xfd
lock bit: 0x0f

Thanks
Albert

#3

Thanks Albert,
Those fuse settings are giving me this error in Avrdude_IDE:

Are you sure 0xFD is the efuse setting for the Seeeduino MEGA?
I have selected the ATMega1280 (m1280) and have wired up the bitbash UART the same as your “Hello Seeeduino.pdf”.
If you have successfully used AVRDude_IDE ot program a Seeeduino MEGFA, could you perhaps send me a screenshot of your settings?
Thanks again for your help

#4

Please try this method.
Direct unzip the files to D:\Program Files\FixSeeeduino_Mega
Fix it as the attached pdf shows.

download here:
FixSeeeduino_Mega.rar (187 KB)

#5

Albert;

Why is the text so hard to read in your FixSeeeduino_Mega.pdf document? I’m using Abobe Reader 8 and the command line texts are kind of scrambled.

Thanks

#6

here is the root cause :

seems Albert.Miao uses fancy pdf creator tool

Even OSX can’t decode the pdf correctly.

#7

Hi guys,
I’m sorry, I print it by a foxit PDF printer.
How about this one:
FixSeeeduino_Mega.zip (91.1 KB)

#8

Amazing! Albert, this is a fantastic effort, thank you!
Following your steps, I managed to get my Seeeduino Mega reprogrammed and running using Avrdude command prompt.

It’s worth noting that I did have one problem. At step 6, there was an error setting the efuse

But I kept following the instructions, and on exit AvrDude asked me:

I chose ‘no’ and I was able to reprogram the 1280 hex file. All is working perfectly.

So thank you very much Albert.
Now I just need to get Firmata working properly on it…

#9

Nice, thanks

#10

didn’t work for me((

#11

After you upload your code and restart the device, the bootloader is no longer active.
So if you have not activated USB serial in your uploaded code, then the PC cannot recognize anything, is normal.

Greetings,
Peter