PIC16F877A SPI interface

[balaji]

Hai,
I am developing a project RFID system based on 16F877A (master) and CLRC632 (slave) using SPI interface. Pls help me what are pins in 16F877A should be connected to slave and SSP registers to initialize.

[John A.D.M]

PIC16F877A
Port A

SPI slave select input - a5 (active low)

Port C

SPI CLOCK -- c3
SPI IN ------- c4
SPI OUT ----- c5

The pin layout will change depending on your MCU package

CLRC632
Pin 13 --- Master In Slave Out (MISO), SPI interface
Pin 21 --- Not Slave Select: strobe for the SPI communication
Pin 22 --- Master Out Slave In, SPI interface
Pin 24 --- Serial Clock: Clock for the SPI interface

http://pdf1.alldatasheet.com/datasheet-pdf/view/196701/PHILIPS/CLRC632.html

[PCM programmer]

Pin A5 is only used if the PIC is an SPI Slave. But you're using the PIC
as the Master. In that case, any i/o pin can be used for the Slave Select
signal going to the slave device. You can use pin C2 for this.

[balaji]

[balaji]

[PCM programmer]

Post your driver routines and a test program. Here's an example of
what I mean by that. The program shown in the link below has routines
to initialize the SPI, configure the A/D chip, and read from the A/D chip.
It also a loop in main(), to read the A/D every 1/2 second and display
the results.
http://www.ccsinfo.com/forum/viewtopic.php?t=41059&start=1

Post your test program that is very similar to that format. It must be
compilable. That means it has the #include, #fuses, #use delay(),
all variable declarations, and it compiles with no errors.

Don't put in any useless CCS Wizard code, that disables Timers, etc.,
that are already disabled upon power-on anyway. Wizard code just
gets in the way of understanding the actual real code in your program,
that performs the functions of the program.

Also post your compiler version.