Why is it going into Data Abort: ARM Instruction at 0000012CH, Memory Access at FFE08000H

 Why is it going into Data Abort: ARM Instruction at 0000012CH, Memory Access at FFE08000H

Data Abort: ARM Instruction at 0000012CH, Memory Access at FFE08000H

Hi ,

I am using the following code with LPC2387 as Target, As on debugging its getting ,it goes into
supervisor mode with "Data Abort: ARM Instruction at 0000012CH, Memory Access at FFE08000H". As I have checked LR too, but there is no values at all

http://www.keil.com/support/docs/3080.htm

I did the some code on LPC2378 As target. And I got the correct output.

Enter the value of a:12 Enter the value of b:1323 Enter the value of c:23234
The value of c: 24569

===============================================================================================
General UART As I/O
===============================================================================================
#include <LPC23xx.H>
#include <stdio.h>

int main)
{ int a,b,c;
/* UART 0 Initialization */
PINSEL0 |= 0x00000050; /* Enable TxD0 in P0.[2] and RxD0 in P0.[3] */

U0LCR = 0x83; /* 8 bits, no Parity, 1 Stop bit */
U0DLL = 78; /* 9600 Baud Rate @ 12.0 MHZ PCLK */
U0LCR = 0x03; /* DLAB = 0 */

printf(" \n Enter the value of a:"); /* the 'printf' function call */
scanf("%d",&a);

printf("\n Enter the value of b:"); /* the 'printf' function call */
scanf("%d",&b);

printf(" \n Enter the value of c:"); /* the 'printf' function call */
scanf("%d",&c);

c=a+b+c;
printf ("\n The value of c: %d",c); /* the 'printf' function call */

while (1) { /* An embedded program does not stop and */ ; /* ... */ /* never returns. We use an endless loop. */ } /* Replace the dots (...) with your own code. */

}

Best Regards,

Vinay. Kumar

Field Application Engineer
Ammos Software Technologies Pvt. Ltd

Direct No : 080-41808616
Mobile No :+91-8861286060
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 RE: Why is it going into Data Abort: ARM Instruction at 0000012CH, Memory Access at FFE08000H

LPC23XX User manual
Chapter 2: LPC23XX memory addressing
Table 8. LPC2300 memory usage
0xFFE0 8000 - 0xFFE0 BFFF External Memory Controller (EMC) (LPC2377/78, LPC2388 only)

==> you are using a LPC2387.

 RE: Why is it going into Data Abort: ARM Instruction at 0000012CH, Memory Access at FFE08000H

Most likely,
your startup code accesses the External Memory Controller,
which works for LPC2378, but doesn't work for LPC2387.

 RE: Why is it going into Data Abort: ARM Instruction at 0000012CH, Memory Access at FFE08000H

Thanks Sir, Your Information Helped.