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MyECU firmware upgrading - new programmer (Read 12354 times)
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MyECU firmware upgrading - new programmer
05/07/12 at 15:05:57
 
Most of you will already be aware of the steps to upgrade the MyECU, outlined here - http://www.cajinnovations.com/MyECU/FirmwareUpgrading.htm.
You'll also know that laptops with parallel printing ports are getting fairly rare. There is now an new option that will allow programming from a USB equipped laptop.

I've tested an inexpensive AVR programmer from Sparkfun Electronics - http://www.sparkfun.com/products/9825 also available from http://microcontrollershop.com/product_info.php?products_id=4541.

It still requires a cable to be made up to go from its 6 pin connector to MyECU's 5 pin connector and the following pics will show how. Future circuit boards for MyECU will have the 6 pin connector.

http://cajinnovations.com/yabb0/Attachments/ProgCable1.JPG
http://cajinnovations.com/yabb0/Attachments/ProgCable2.JPG
http://cajinnovations.com/yabb0/Attachments/ProgCable3.JPG

The command to program is slightly different. If you have the newer Atmega324PA ( not the Atmega324) you may need to add -F to the command also as Atmel in their wisdom decided to change the chip signature.

avrdude -u -p m324p -c usbtiny -e -U lfuse:w:0xE7:m -U hfuse:w:0xDF:m -U flash:w:My16M_32.hex -U lock:w:0x3C:m

I've also done a repackaging of avrdude and the usb drivers to save having to install all of WinAVR. I've only tried this on WinXP. Download the following zip and unzip the files into a directory c:\avrdude.
The first time you plug in the programmer, Windows will ask for a driver. Point Windows to this directory for the drivers. You should then be right to program as mentioned on the first link above although I had to unplug and replug the programmer first.
http://cajinnovations.com/yabb0/Attachments/Avrdude.zip

If you buy it from the Microcontroller shop you might want to consider getting this bluetooth adapter also to save post
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« Last Edit: 07/18/12 at 08:38:32 by YaBB Administrator »  

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Re: MyECU firmware upgrading - new programmer
Reply #1 - 05/07/12 at 20:12:39
 
great! i'll buy one..i've saw also this http://www.fischl.de/usbasp/
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Re: MyECU firmware upgrading - new programmer
Reply #2 - 05/08/12 at 06:44:07
 
Yes that looks like it will do the job also. The one I mentioned comes with a 6 way cable also. I don't know if that one does.
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Re: MyECU firmware upgrading - new programmer
Reply #3 - 05/08/12 at 19:24:22
 
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Re: MyECU firmware upgrading - new programmer
Reply #4 - 05/09/12 at 03:39:07
 
this is a bluetooth not a programmer
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Re: MyECU firmware upgrading - new programmer
Reply #5 - 05/09/12 at 07:46:36
 
That's correct, its not a programmer. It's a suggest to save on postage. The bluetooth will be the preferred communication option in future allowing a smartphone to be used to do logging/tuning.
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Re: MyECU firmware upgrading - new programmer
Reply #6 - 07/14/12 at 22:47:53
 
I tried to follow up the link from the “MyEcu Firmware Upgrading – New Programmer.”



It came up as a list of nine files, not sure which I have to copy across, I am running the Windows 7 32bit system. 


Also colours of wires in the photos of the connecter not clear, two look to be red - I assume one is orange.  Please do a diagram showing which wires go where.

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Re: MyECU firmware upgrading - new programmer
Reply #7 - 07/18/12 at 08:21:36
 
Its the orange wire that is not connected. It is not required.

I'm going to redo the links in the original post. Google docs is not working sometimes.
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