On 14/08/2011 04:00, IVP wrote:
> The difference ? The 'return' it seems
>
> Works OK too
>
>             mov     #0xff,w0
>             call    send_w0
>             bclr    SPI1STAT,#SPIROV
> .... any number of cycles ....
>             btss    SPI1STAT,#SPIRBF
>             bra     $-2
>             mov     SPI1BUF,w2
>
> Weird

That does seem weird, yes. Have you any idea what the return might be=20
doing to cause problems?
Have you had a look at what is happening to the various registers involved?
How exactly does it not work - does it even load SPI1BUF the first time=20
round?

--=20
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