Post Created date
Sanity check, compiler generated ISR
Actually yes, I wanted it to be fair game and I thank you Lee for your contribution. It is something I will think about if I ever decide to invest in a compiler. David.
Monday, 19 January 2009 - 19:57
Sanity check, compiler generated ISR
Thanks for the answer Lee. The first ISR is of course what GCC came up with. I tried different optimizations but it always generated the same code. I knew I could use an attribute...
Friday, 16 January 2009 - 22:27
Sanity check, compiler generated ISR
Yes, just what I thought. Thank you for the confirmation. David.
Friday, 16 January 2009 - 12:26
Sanity check, compiler generated ISR
Thanks to whoever decided to move this but I am not asking specifically about GCC. I am asking if the assembly routine I wrote would work just as well as the one the compiler...
Friday, 16 January 2009 - 12:20
Looking for a Fellow Gearhead for Automotive Project
You can use any terminal emulator to communicate with it if that is the way you have it programmed. If you are going to write your own app for communicating with your board then...
Tuesday, 23 December 2008 - 12:54
AT90USB162 controlling a led over USB
I didn't check out LUFA yet so I can't say anything about that. What I did was use the Atmel HID generic sample applications. It gives you a dialog box on your computer that lets...
Friday, 19 December 2008 - 14:48
Looking for a Fellow Gearhead for Automotive Project
The FTDI chip is definitely an option. However with the USB AVRs the USB connection just needs 2 resistors and a capacitor and there is USB firmware available from Atmel and from...
Wednesday, 17 December 2008 - 11:34
Looking for a Fellow Gearhead for Automotive Project
Which AVR are you thinking of using. The AT90USB series and some others have built in hardware to handle some of the USB stuff. There is also sample code available for them from...
Tuesday, 16 December 2008 - 09:53
Build Error?
Then it seems like you are missing files. Your seg7.h file has lines in it that say there are functions in another file and tell how to call the function. Your are missing the...
Tuesday, 9 December 2008 - 09:42
RTC year roll over problem
Quote:This problem will arise in about 90 years. The oldest person was about 110, so if you (or you boss) are over 20 yrs old, bingo, what's the worry ? Hmmm... you are very...
Monday, 8 December 2008 - 19:48
Build Error?
Those are function prototypes in the header files. There has to be definitions also. It should be in a file named something like seg7.c, seg7.o, or, if this is used in AVR...
Monday, 8 December 2008 - 12:08
Build Error?
Something still isn't being found. Or maybe a problem in the build order? Something to do with seg7.h I would bet. I would answer more but there are others that could probably...
Monday, 8 December 2008 - 10:04