Lpc2000

I'm using that code in a project with gcc right now and do not
have any errors, warnings, or complaints from the compiler.
The compiler is version 3.4.3 from http://www.gnuarm.com
Code is compiled in ARM mode with the following parameters:
 -mcpu=arm7tdmi -O2 -ggdb -ffreestanding \
 -Wall -Wcast-align -Wcast-qual -Wimplicit -Wmissing-declarations \
 -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wswitch \
 -Wredundant-decls -Wreturn-type -Wshadow -Wstrict-prototypes -Wunused
plus some INCLUDES

Good luck
-Bill


On Sun, 24 Apr 2005 18:53:28 -0000, sig5534 wrote:



>  See my LPC_FlashRoutines-18Feb05.zip
> post to the files section of this mailing list for operational/
> example code.
> 
> Regards
> -Bill Knight
> R O SoftWare &
> http://www.theARMPatch.com
> 

I looked at those as well, and I actually tried sticking in some of 
the code.  But I get some errors from the GCC compiler.  Something 
about RC24_Truncation ....

You have some low level asm code doing this and it seems to make the 
GCC compiler unhappy. 

Do you know what that is about?

Chris.



> 
> On Sun, 24 Apr 2005 12:51:01 -0000, sig5534 wrote:
> 
> 
> 
> I am getting an Invalid Instruction Exception trying to get my IAP 
> routines running.  When it branches to the IAP service routine at 
> 0x7FFFFFF0, it goes to the next instruc which is invalid.  
> 
> ==>>	0x7FFFFFF0 F7FFB580    LDRNVB    R11,[PC,+R0,LSL #0xb]
> 	0x7FFFFFF4 BC80F949    DD 0xBC80F949 ; INVALID OPCODE
> 	0x7FFFFFF8 4718BC08    LDRMI     R11,[R8,-R8,LSL #0x18]
> 	0x7FFFFFFC FFFFFFFF    SWINV     0xffffff
> 	0x80000000 DEADDEAD    CDPLE     CP14,0xa,CR13,CR13,CR13,0x5
> 	0x80000004 DEADDEAD    CDPLE     CP14,0xa,CR13,CR13,CR13,0x5
> 	0x80000008 DEADDEAD    CDPLE     CP14,0xa,CR13,CR13,CR13,0x5
> 
> R00=0x40000EF8
> R11=0x40000F30
> 
> Here is the code snip:
> 
> void attrib_RAM FlashData(void) {
>    	typedef void (*IAP)(unsigned int [],unsigned int[]);
>    	unsigned int command[5];
>    	unsigned int result[2];
>    	// setup
>    	IAP iap_entry;
> 	Disable_INT();
>    	iap_entry=(IAP) IAP_LOCATION;
>    	// Prepare to erase
>    	command[0]=50;
>    	command[1]=14;
>    	command[2]=14;
>    	iap_entry(command, result);
>    	if (result[0] != IAP_CMD_SUCCESS) goto error;
> ...
> 
> It's pretty standard.  I don't know why it is causing this crash.
> I must be missing something simple.
> 
> I guess I don't know where the PC is suppose to go after 
0x7FFFFFF0.  
> Seems like it should go to the handler routine for cmd #50, but it 
> just drops to the next instruc.
> 
> Any ideas?
> 
> Thanks, Chris.
> 
> 
> 
> 
> 
> 
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