[PIC] PIC16F887 SPI interfacing with MCP3550.

[ismbn]

Hello All.

i am now for PIC microcontroller. I tried allot but the SPI is not working.
my aplication is take the data form MCP3550. and show on 4 digit 7 segment.
i am just getting the problem in communication between PIC16F887 and MCP3550.
please guide me how to make alive the communication between them.
this is the simple code the i an trying to read the data and show it on PORTD.
Please help me....

#include <pic.h>
void my_delay(char x)
{
char q,w;
for (q=0;q < 255; q++)
for(w=0;w<x;w++);
}
char x;
void main()
{
TRISC = 0b10010111;;
TRISA = 0x01;
TRISD=0;

	SSPSTAT |= 0b10000000;
	SSPCON	|= 0b00100100;
while(1){
	my_delay(10);
x  = SSPBUF;
PORTD = x;
}
}

am i correct????

 

[cl10greg]

I am guessing one the registers haven't been setup for the correct SPI communication.

From the datasheet, "When using the SSP module in SPI slave mode and SS enabled, the A/D converter must be set to one of the followed modes, where PCFG3CFG0 = 0100,0101,1110,1111." It appears you are in slave mode so this could be the issue.

"SS must have TRISA<5> set and register ADCON1 must be set in a way that pin RA5 is configured as a digital I/O"

 

[ismbn]

@cl10greg ,Thank you so much for the replay Sir.
the datasheet seem to very difficult to read an understand. Sir can you please show me how to configure it.
i want uC in Master mode. the ADC Controlling by SS bit.
Thanks Once again.