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exception when calling reset_platform
- From: Roland Caßebohm <roland dot cassebohm at visionsystems dot de>
- To: ecos-discuss at sources dot redhat dot com
- Date: Thu, 13 Jun 2002 18:20:00 +0200
- Subject: [ECOS] exception when calling reset_platform
Hi,
my ARM7TDMI (SNDS100 Board) makes an abort prefetch exception when the
application calls reset_platform().
I added two nop's because I thought the processor prefetches the init_done
value, but this doesn't help:
----------
.global reset_platform
.type reset_platform,function
reset_platform:
#ifdef CYGSEM_HAL_ROM_MONITOR
// initialize CPSR (machine state register)
mov r0,#(CPSR_IRQ_DISABLE|CPSR_FIQ_DISABLE|CPSR_SUPERVISOR_MODE)
msr cpsr,r0
b warm_reset
#else
mov r0,#0
mov pc,r0 // Jump to reset vector
//roland
mov r0,r0 // nop
mov r0,r0 // nop
#endif
init_done:
.long 0xDEADB00B
----------
Does anybody know what's wrong?
Roland
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