Hi, Alain Portal:
Thank you so much... I didn't make my program work yet, but I tested
your delay4NOP()()
already, and yes, the program compiled successfully.
For now, the testing code is a as simple as:
#include <8051.h>
#define Nop() \
__asm \
nop \
__endasm \
#define delay4NOP() \
__asm \
nop \
nop \
nop \
nop \
__endasm \
void main(void )
{
uchar m;
P0=0xFF;
P1=0xFF;
delay4NOP();
}
Thank you Alain...Testing going on...
Best Regards
Pei
On Sun, Jun 9, 2013 at 1:34 AM, Alain Portal <alain.por...@free.fr> wrote:
> Le samedi 8 juin 2013 12:19:18 Alain Portal a écrit :
> > Hi,
> >
> > Le samedi 8 juin 2013 17:28:33 JIA Pei a écrit :
> > > Hi, all:
> > >
> > > Since a lot of the testing codes were written under Windows with Keil
> C51,
> > > it's seriously a big problem for me to recompile everything under Linux
> > > using sdcc.
> > >
> > > Again, the following line is in one of my codes, which seems to
> declare a
> > > function delayNOP() which pauses 4 CPU clocks.
> > >
> > > *#define delayNOP(); {_nop_();_nop_();_nop_();_nop_();};*
> > >
> > > However, what is the function equal to Keil C51 *_nop_()* in *sdcc* ?
> > >
> > > I don't want to re-write the code, but just simply modify it and make
> it
> > > work after flash it onto my board. So, can anybody help me please?
> >
> > I don't remember if a such function exists in the sdcc libraries, but
> you can write your own as is:
> >
> > #define Nop() \
> > __asm \
> > nop \
> > __endasm \
> >
> > #define delay4NOP() \
> > __asm \
> > nop \
> > nop \
> > nop \
> > nop \
> > __endasm \
>
> Does it help?
>
>
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--
Pei JIA
Email: jp4w...@gmail.com
cell: +1 604-362-5816
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