I am looking for simple working example code for the AT91SAM7S-EK board that has the AT91SAM7S256 part mounted. I have tried to update the example files (Makefile, board.h, linker script etc.) in the WinARM distribution, that where written for the S64 part. Alas they do not run, so I don't know where I am going wrong. I could figure that out if I had a working example that simply blinked a LED for the S256 on the EK board. Does anyone have such code?
Bob Paddock wrote: > I am looking for simple working example code for the AT91SAM7S-EK > board that has the AT91SAM7S256 part mounted. > > I have tried to update the example files (Makefile, board.h, linker > script etc.) in the WinARM distribution, that where written for the > S64 part. Alas they do not run, so I don't know where I am going > wrong. I could figure that out if I had a working example that simply > blinked a LED for the S256 on the EK board. > > Does anyone have such code? Please see http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/index_at91.html#at91sam7s256_ld On my board there is still an AT91SAM7S64 and I do not own a "new" one. But Ewout Boks provided modified version of the linker-scripts which he has tested with his board. Martin Thomas
> Please see > http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/index_at91.html#at91sam7s256_ld Thank you. I had already loaded those, but I did not notice the note about the Keil vs Atmel samples. I switched to trying the \WinARM\examples\at91sam7s64_Atmel_example that is based on the Atmel examples (Split C/ASM startup). After I added the 'volatile' key word to the wait() function, the example worked just fine. With out 'volatile' the busy loop was optimized away, and all of the LEDs are lit no mater what you do to the buttons. static void wait ( void ) {//* Begin volatile unsigned int waiting_time ; /* Added 'volatile' */ change_speed () ; for(waiting_time = 0; waiting_time < LedSpeed; waiting_time++) ; }//* End BTW this example still has the Makefile bug that creates main.hex when making binary output files. Thank you for WinARM.
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