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Re: Olimex LPC2294H external flash

2006-05-25 by stefano_m_a

Hi,
is it possible to save some routines into the external flash (but 
boot into the internal one..) ?
I try to modify my linker script adding an output section to point 
0x8000.0000 area.
I receive the following errors:

Linking: main.elf
arm-elf-gcc -mthumb -mcpu=arm7tdmi -mthumb-interwork -I. -gdwarf-2 -
DROM_RUN  -O0 -Wall -Wcast-align -Wcast-qual -Wimplicit  -Wpointer-
arith -Wswitch -Wredundant-decls -Wreturn-type -Wshadow -Wunused -Wa,-
adhlns=crt0.lst   -MD -MP -MF .dep/main.elf.d crt0.o   lcd.o system.o 
buttons.o LPC_uart.o LPC_Vic.o adc.o armVIC.o ram.o main.o     --
output main.elf -nostartfiles -Wl,-Map=main.map,--cref -lc  -lm -lc -
lgcc -TLPC2214-ROM.ld

ram.o: In function `RAM_read':
/cygdrive/j/Progetti/Lpc/Progetti/FlashExt/ram.c:38: relocation 
truncated to fit: R_ARM_PC24 against symbol `LCDSendCommand' defined 
in .text section in lcd.o
/cygdrive/j/Progetti/Lpc/Progetti/FlashExt/ram.c:47: relocation 
truncated to fit: R_ARM_PC24 against symbol `LCDSendChar' defined 
in .text section in lcd.o
ram.o: In function `RAM_read_rev':
/cygdrive/j/Progetti/Lpc/Progetti/FlashExt/ram.c:55: relocation 
truncated to fit: R_ARM_PC24 against symbol `LCDSendCommand' defined 
in .text section in lcd.o
collect2: ld returned 1 exit status
make: *** [main.elf] Error 1

ram.o is the object code defined in the linker script as:
...
	.text.extFlash :
	{
		ram.o
	} > flash_ext = 0xFF

	prog :
	{
		*(.text)
		*(.rodata)
		*(.rodata*)
		*(.glue_7)
		*(.glue_7t)
	} >flash = 0xFF
...

Thanks !
--
SM


--- In lpc2000@yahoogroups.com, "EmbeddedHub" <tim@...> wrote:
>
> hi,
> 
> Olimex has provided the sample codes to program the external flash 
of 
> LPC-H2294 at their web site. You would need to refer to the user 
> manual of LPC221x to boot from external flash.
> 
> Philips flash utility is used to program the internal flash of LPC 
> chip. 
> 
> regards,
> Tim.
> http://www.embeddedhub.com/
> 
> --- In lpc2000@yahoogroups.com, "litevelocity" <litevelocity@> 
> wrote:
> >
> > Hi,
> > 
> > Does anyone know how to get code into the external flash of this 
> > header board, and run from there? 
> > 
> > Is it possible to use the Philips flash utility to do it, or have 
to 
> > use something else?
> > 
> > Thanks,
> > 
> > Joe
> >
>

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