Author Topic: spi_ex.s  (Read 3994 times)

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Online Dr.neo

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spi_ex.s
« on: July 02, 2007, 01:22:35 AM »
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   .global spi_wait

spi_wait:
   
   ldr      r0, =0x040001A0
0:
   ldrh   r1, [ r0 ]
   tst      r1, #0x80
   bne      0b
   
   bx      lr
   
In my world,have 0 and 1 only ......Matrix World......