michael shiloh wrote:
> First of all, thanks for putting these tools together. The examples
> compile fine, but when I go to my application I have trouble.
>
> Here is the link line and error:
>
> Linking: make.elf
> arm-elf-gcc -mthumb -mcpu=arm7tdmi -mthumb-interwork -I. -gdwarf-2
> -DRAM_RUN -DSAM7_GCC -DVECTORS_IN_RAM  -Os -Wall -Wcast-align -Wimplicit
> -Wpointer-arith -Wswitch -Wredundant-decls -Wreturn-type -Wshadow
> -Wunused -Wa,-adhlns=../controller/startup/AT91SAM7_Startup.lst
> -I../controller/makingthings
> -I../controller/freertos/portable/GCC/ARM7_AT91SAM7S/
> -I../controller/freertos/include/ -I../appboard/makingthings/
> -I../utility/makingthings/ -MD -MP -MF .dep/make.elf.d
> ../controller/startup/AT91SAM7_Startup.o   make.o      --output make.elf
> -nostartfiles -Wl,-Map=make.map,--cref -lc  -lm -lc -lgcc
> -T../controller/startup/atmel-rom.ld
> c:\winarm\bin\..\lib\gcc\arm-elf\4.1.0\..\..\..\..\arm-elf\bin\ld.exe:
> error: no memory region specified for loadable section `.vectors'
> collect2: ld returned 1 exit status
> make: *** [make.elf] Error 1
>
>
>
> The critical bits from my Makefile:
>
> MCU      = arm7tdmi
> SUBMDL   = AT91SAM7S64
> THUMB    = -mthumb
> THUMB_IW = -mthumb-interwork
>
> RUN_MODE=RAM_RUN:
> VECTOR_LOCATION=VECTORS_IN_RAMf
> LDFLAGS +=-T../controller/startup/atmel-rom.ld

It seems that you mix code/files from different sources. The settings of
"VECTORS_LOCATION" and "RUN_MODE" in the "WinARM"-makefile or just
variables/options which are passed to the compiler-frontend or used to
select a linker-script. Just setting these options in the makefile is
not enough if the rest of the code is not prepared for this.
atmel-rom.ld does not look like a script-filename I use in the WinARM
examples so there is a good change that this script is not prepared to
assign a memory-placement for the section vectors.

If you are interested in Remapping and "Run from RAM" you might take a
look into one of the SAM7S examples ("gamma") from my "Projects-Page":
http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/index_at91.html#at91_gamma
(this code is also included in WinARM 6/2006). It should give you at
least an idea how the settings in the makefile are passed and used to
setup the device (remapping etc.).

Martin Thomas