Broken ethermega

Combining the power of the ATmega2560 MCU with onboard Ethernet, a microSD card slot, an efficient switchmode power supply, and a small prototyping area. [Product page]
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Alphawar
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Joined: Mon Nov 19, 2012 11:45 am

Broken ethermega

Post by Alphawar » Mon Sep 09, 2013 1:15 pm

Hi there I am posting this to see if any one can help me, I recently got a ethermega from a friend who said it didnt work and could not get it swapped, so I used the new usbasp from jaycar (freetronics) to try flashing both the usb-serial chip and the mega chip.

This doesnt seem to have fixed anything as when I try to upload from usb arduino i still get time out errors and if I program the blinker code direct through the usbasp it does not behave normaly.

Please let me know if anyone has any ideas

Thank you

andrew
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Re: Broken ethermega

Post by andrew » Tue Sep 10, 2013 12:03 am

Do you know what your friend was trying to do with it before it stopped working?

Alphawar
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Joined: Mon Nov 19, 2012 11:45 am

Re: Broken ethermega

Post by Alphawar » Wed Sep 11, 2013 12:07 pm

johnb wrote:Do you know what your friend was trying to do with it before it stopped working?
No sorry, all i know he couldn't return it as he had modified it to dfu it but didn't work.

I tried to do the loop test and shorted the Tx and Rx pin but only the receiving led blinked on testing.

other than that what else can I test to eliminate the options till I know whats wrong. because the device seems to work with the default blinking pin when I flash the main ship with its bootloader but if I try program a blinking script to pin9 it doesn't work (flashing via usbasp)

andrew
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Re: Broken ethermega

Post by andrew » Thu Sep 12, 2013 12:39 am

To confirm so far:
You can upload the Mega2560 bootloader via a USBasp.
Then if you create a sketch that controls digital pin 9, it doesn't work?

Almost anything could have happened to the board from the previous owner, which leaves you with the process of elimination to see what works. If they've fried D9 for some reason try some other ones. Does the "blink" example sketch in the IDE work?

Alphawar
Posts: 11
Joined: Mon Nov 19, 2012 11:45 am

Re: Broken ethermega

Post by Alphawar » Fri Sep 13, 2013 7:17 am

johnb wrote:To confirm so far:
You can upload the Mega2560 bootloader via a USBasp.
Then if you create a sketch that controls digital pin 9, it doesn't work?
johnb wrote:Does the "blink" example sketch in the IDE work?
Tried that test on a few pins with no luck

andrew
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Re: Broken ethermega

Post by andrew » Fri Sep 13, 2013 7:29 am

Then it sounds like your friend killed the EtherMega. :(

Alphawar
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Re: Broken ethermega

Post by Alphawar » Mon Sep 16, 2013 8:20 am

sad face :(, so guess that makes it useless then?? anything I could do with it?

andrew
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Re: Broken ethermega

Post by andrew » Mon Sep 16, 2013 11:04 pm

Alphawar wrote:sad face :(, so guess that makes it useless then?? anything I could do with it?
SMD rework practice :)

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