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wpotter
Joined: 18 Jun 2010
Posts: 50
Location: Valencia, Spain
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 Posted: Mon Jun 21, 2010 9:40 am Post subject: Best Way to Program |
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While I'm on a roll starting topics, I have another question that might be just based on opinion. I'm looking for an easy way to program my OpenServo V3 and I'm not sure whether it is easier to use AVRStudio and create a new version of the firmware, or whether it's better to use C++ command line and just control it through the OSIF.
Thoughts? |
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rotdrop
Joined: 15 Dec 2009
Posts: 16
Location: Germany, Ruhrpott
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| Posted: Tue Jun 22, 2010 7:27 am Post subject: |
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The OSIF behaves like an USB-Tiny, however, at least the one I ordered from Robotfuzz uses 1964:0001 as vendor and product id. I found it necessary to patch avrdude in order to use it. Something like the patch below should work (avrdude-5.8 ). There is a note in the wiki how to set up the cabling:
http://www.openservo.com/OSIF_programmer
You have to use the _second_ variant ("First time firmware installation") to use the device with avrdude.
Hope this helps,
Claus
Addition: the following patch applies to avrdude-5.8, you can get it from
http://www.very-clever.com/download/nongnu/avrdude/avrdude-5.8.tar.gz.
Assuming you are using some flavour of Unix (FIXME: Cygwin under Windows?), you can do the following to apply the patch:
1.) Fetch the avrdude sources
2.) Copy and paste the patch from the code-listing below and save it under some name, say "blah.patch".
3.) Unpack the source and apply the patch
| Code: |
tar xf avrdude-5.8.tar.gz
cd avrdude-5.8
patch -p0 -l < blah.patch
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The "-l" switch instructs the patch program to ignore white space characters.
4.) Compile and install the package in the "usual" way, whatever that means.
| Code: |
--- usbtiny.c~ 2009-03-06 21:09:11.000000000 +0100
+++ usbtiny.c 2010-01-03 22:30:30.545676687 +0100
@@ -206,8 +206,11 @@
// now we iterate through all the busses and devices
for ( bus = usb_busses; bus; bus = bus->next ) {
for ( dev = bus->devices; dev; dev = dev->next ) {
- if (dev->descriptor.idVendor == USBTINY_VENDOR
- && dev->descriptor.idProduct == USBTINY_PRODUCT ) { // found match?
+ if ( ( dev->descriptor.idVendor == USBTINY_VENDOR
+ && dev->descriptor.idProduct == USBTINY_PRODUCT )
+ ||
+ ( dev->descriptor.idVendor == OSIF_VENDOR
+ && dev->descriptor.idProduct == OSIF_PRODUCT ) ) { // found match?
PDATA(pgm)->usb_handle = usb_open(dev); // attempt to connect to device
@@ -222,8 +225,13 @@
}
if (!PDATA(pgm)->usb_handle) {
- fprintf( stderr, "%s: Error: Could not find USBtiny device (0x%x/0x%x)\n",
- progname, USBTINY_VENDOR, USBTINY_PRODUCT );
+ fprintf( stderr,
+ "%s: Error: \n"
+ "Could not find USBtiny device (0x%x/0x%x) "
+ "or OSIF device (0x%x/0x%x)\n",
+ progname,
+ USBTINY_VENDOR, USBTINY_PRODUCT,
+ OSIF_VENDOR, OSIF_PRODUCT );
return -1;
}
--- usbtiny.h~ 2009-03-06 21:09:11.000000000 +0100
+++ usbtiny.h 2010-01-03 22:30:30.545676687 +0100
@@ -29,6 +29,9 @@
#define USBTINY_VENDOR 0x1781
#define USBTINY_PRODUCT 0x0C9F
+#define OSIF_VENDOR 0x1964
+#define OSIF_PRODUCT 0x0001
+
// Generic requests to the USBtiny
#define USBTINY_ECHO 0 // echo test
#define USBTINY_READ 1 // read byte (wIndex:address)
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Last edited by rotdrop on Tue Jun 22, 2010 1:46 pm; edited 4 times in total |
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wpotter
Joined: 18 Jun 2010
Posts: 50
Location: Valencia, Spain
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| Posted: Tue Jun 22, 2010 7:31 am Post subject: |
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Thanks Claus,
I will give it a shot and let you know how it goes. Appreciate the help.
- Will |
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rotdrop
Joined: 15 Dec 2009
Posts: 16
Location: Germany, Ruhrpott
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| Posted: Tue Jun 22, 2010 9:38 am Post subject: |
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Oops, actually, intentionally my previous post should have been a reply to this post
http://www.openservo.com/Forums/viewtopic.php?t=1040&highlight=
of yours. Also, my post was a little bit sparse. But obviously you know AVRDude, so: the USBTiny is one of the numerous programmers for the ATmega. After patching and compiling avrdude you should be able to program the Openservo V3 board through the OSIF using
avrdude -c usbtiny -p m168 [other stuff]
Claus |
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wpotter
Joined: 18 Jun 2010
Posts: 50
Location: Valencia, Spain
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| Posted: Tue Jun 22, 2010 9:42 am Post subject: |
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Yes. I'm generally familiar with AVR programming, but I don't have that much experience, so I figured why spend time doing trial and error until it works, when I can just ask someone who knows how!
Thank you for your help! |
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Collard
Joined: 01 Mar 2011
Posts: 3
Location: USA
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| Posted: Mon Mar 07, 2011 12:41 pm Post subject: |
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No, I am not well aware of this topic.
When I installed the AVR programming then it can't access the drive
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johnlewis250
Joined: 08 May 2011
Posts: 1
Location: Los Angeles
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| Posted: Sun May 08, 2011 3:39 am Post subject: |
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But why? i think that you need to search about AVR programming because i always use it.
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