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How to generate Burst Read/Write with ARM?

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hgz

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arm write burst

Hi,
I want to generate burst read/write, used STMIA/LDMIA, but arm always generate single write/read, can anybody tell me how to config ARM?

Thanks!
hgz
 

arm burst write

1. STM/LDM
for example :
mov r0 , #0xa0000000 ; this is the start memory map
LDMFD r0!, {r1-r8} ; try the LDM u d better to touch more registers here
ADD r0 , r0, #0x100 ; try another memory map
STMFD r0!, {r1-r8} ; try the STM

2.enable mmu/cache and then linefill/clean
It's more complicated. : )
If u already know how to do , do it.
Or, ignore it.
 

arm stm burst

Thanks for your reply.
1.I have test your test case, Burst =1, generate INCR, Yes or not ? I need to generate HBURST = INCR8/INCR4, Can this test case generate it ?

2.Cache linefill , we must enable MMU ?
3.How to generate a cache linefill ? Can you give me a simple example?

Thanks a lot.

BR!
 

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