Communicating pic16f876 to sensor3

[Einly]

Dear sir,

I've written a program as below to communicate pic16f876 to the sensor with reference to ur advice:

#include <16f876.h>
#use delay (clock=20000000)
#fuses noprotect, nowdt, hs, nolvp

#byte PORTA =5
#byte PORTB =6
#byte PORTC =7

#define READ_SSP() (SSPBUF)
#define WAIT_FOR_SSP() while((SSPSTAT & 1)==0)
#define WRITE_SSP(x) SSPBUF=(x)
#define CLEAR_WCOL() SSPCON = SSPCON & 0x3f

void main()
{
set_tris_b(0);
set_tris_c(0x20);

byte garbage[1];
byte byte_returned;

do
{
CLEAR_WCOL();
WRITE_SSP(0x02);
WAIT_FOR_SSP();
garbage=READ_SSP();

TRISSDO=1;
WRITE_SSP(garbage);
WAIT_FOR_SSP();
byte_returned=READ_SSP();
TRISSDO=0;
}while(1);
}

However, error messages appear when I try to compile it. I think that I have misunderstood what you have taught me. Can you please modify the program for me?

Thanks a lot for your help.

Einly
___________________________
This message was ported from CCS's old forum
Original Post ID: 9053

[Mark]

You haven't defined the following
SSPBUF
SSPSTAT
SSPCON
TRISSDO

Regards,
Mark

:=Dear sir,
:=
:=I've written a program as below to communicate pic16f876 to the sensor with reference to ur advice:
:=
:=#include <16f876.h>
:=#use delay (clock=20000000)
:=#fuses noprotect, nowdt, hs, nolvp
:=
:=#byte PORTA =5
:=#byte PORTB =6
:=#byte PORTC =7
:=
:=#define READ_SSP() (SSPBUF)
:=#define WAIT_FOR_SSP() while((SSPSTAT & 1)==0)
:=#define WRITE_SSP(x) SSPBUF=(x)
:=#define CLEAR_WCOL() SSPCON = SSPCON & 0x3f
:=
:=void main()
:={
:= set_tris_b(0);
:= set_tris_c(0x20);
:=
:= byte garbage[1];
:= byte byte_returned;
:=
:= do
:= {
:= CLEAR_WCOL();
:= WRITE_SSP(0x02);
:= WAIT_FOR_SSP();
:= garbage=READ_SSP();
:=
:= TRISSDO=1;
:= WRITE_SSP(garbage);
:= WAIT_FOR_SSP();
:= byte_returned=READ_SSP();
:= TRISSDO=0;
:= }while(1);
:=}
:=
:=However, error messages appear when I try to compile it. I think that I have misunderstood what you have taught me. Can you please modify the program for me?
:=
:=Thanks a lot for your help.
:=
:=Einly
___________________________
This message was ported from CCS's old forum
Original Post ID: 9055

[Einly]

Dear sir,

Thanks for ur reply:)

I'm sorry to say that I've a very poor understanding in using the chip as well as the command.

May I know how should I define them? As I know, they refer to registers in the chip used for synchronous serial port communication.

For your information, the sensor that I refer to is an optical sensor manufactured by Agilent Technologies, i.e. ADNS2051.

Thanks.

Einly

:=You haven't defined the following
:=SSPBUF
:=SSPSTAT
:=SSPCON
:=TRISSDO
:=
:=Regards,
:=Mark
:=
:=:=Dear sir,
:=:=
:=:=I've written a program as below to communicate pic16f876 to the sensor with reference to ur advice:
:=:=
:=:=#include <16f876.h>
:=:=#use delay (clock=20000000)
:=:=#fuses noprotect, nowdt, hs, nolvp
:=:=
:=:=#byte PORTA =5
:=:=#byte PORTB =6
:=:=#byte PORTC =7
:=:=
:=:=#define READ_SSP() (SSPBUF)
:=:=#define WAIT_FOR_SSP() while((SSPSTAT & 1)==0)
:=:=#define WRITE_SSP(x) SSPBUF=(x)
:=:=#define CLEAR_WCOL() SSPCON = SSPCON & 0x3f
:=:=
:=:=void main()
:=:={
:=:= set_tris_b(0);
:=:= set_tris_c(0x20);
:=:=
:=:= byte garbage[1];
:=:= byte byte_returned;
:=:=
:=:= do
:=:= {
:=:= CLEAR_WCOL();
:=:= WRITE_SSP(0x02);
:=:= WAIT_FOR_SSP();
:=:= garbage=READ_SSP();
:=:=
:=:= TRISSDO=1;
:=:= WRITE_SSP(garbage);
:=:= WAIT_FOR_SSP();
:=:= byte_returned=READ_SSP();
:=:= TRISSDO=0;
:=:= }while(1);
:=:=}
:=:=
:=:=However, error messages appear when I try to compile it. I think that I have misunderstood what you have taught me. Can you please modify the program for me?
:=:=
:=:=Thanks a lot for your help.
:=:=
:=:=Einly
___________________________
This message was ported from CCS's old forum
Original Post ID: 9063

[Mark]

Not sure what TRISSDO is. The other are registers in the PIC. Look up there addresses in the datasheet and use the #byte command as you did for PORTA.

:=Dear sir,
:=
:=Thanks for ur reply<img src="http://www.ccsinfo.com/pix/forum/smile.gif" border="0">
:=
:=I'm sorry to say that I've a very poor understanding in using the chip as well as the command.
:=
:=May I know how should I define them? As I know, they refer to registers in the chip used for synchronous serial port communication.
:=
:=For your information, the sensor that I refer to is an optical sensor manufactured by Agilent Technologies, i.e. ADNS2051.
:=
:=Thanks.
:=
:=Einly
:=
:=:=You haven't defined the following
:=:=SSPBUF
:=:=SSPSTAT
:=:=SSPCON
:=:=TRISSDO
:=:=
:=:=Regards,
:=:=Mark
:=:=
:=:=:=Dear sir,
:=:=:=
:=:=:=I've written a program as below to communicate pic16f876 to the sensor with reference to ur advice:
:=:=:=
:=:=:=#include <16f876.h>
:=:=:=#use delay (clock=20000000)
:=:=:=#fuses noprotect, nowdt, hs, nolvp
:=:=:=
:=:=:=#byte PORTA =5
:=:=:=#byte PORTB =6
:=:=:=#byte PORTC =7
:=:=:=
:=:=:=#define READ_SSP() (SSPBUF)
:=:=:=#define WAIT_FOR_SSP() while((SSPSTAT & 1)==0)
:=:=:=#define WRITE_SSP(x) SSPBUF=(x)
:=:=:=#define CLEAR_WCOL() SSPCON = SSPCON & 0x3f
:=:=:=
:=:=:=void main()
:=:=:={
:=:=:= set_tris_b(0);
:=:=:= set_tris_c(0x20);
:=:=:=
:=:=:= byte garbage[1];
:=:=:= byte byte_returned;
:=:=:=
:=:=:= do
:=:=:= {
:=:=:= CLEAR_WCOL();
:=:=:= WRITE_SSP(0x02);
:=:=:= WAIT_FOR_SSP();
:=:=:= garbage=READ_SSP();
:=:=:=
:=:=:= TRISSDO=1;
:=:=:= WRITE_SSP(garbage);
:=:=:= WAIT_FOR_SSP();
:=:=:= byte_returned=READ_SSP();
:=:=:= TRISSDO=0;
:=:=:= }while(1);
:=:=:=}
:=:=:=
:=:=:=However, error messages appear when I try to compile it. I think that I have misunderstood what you have taught me. Can you please modify the program for me?
:=:=:=
:=:=:=Thanks a lot for your help.
:=:=:=
:=:=:=Einly
___________________________
This message was ported from CCS's old forum
Original Post ID: 9077