Wanna some tutorials on spi - Electronic Circuits Projects Diagrams Free

hayee · 14th February 2008, 07:19 AM

Hi everyone,
i want some tutorials on spi in C.i am using two pic16f877a controllers.any simple tutorials like blinking leds.i have no concept of spi.please help me out if u guys have any information.
Thanx

eng1 · 14th February 2008, 07:22 AM

This is a Micorchip reference. It's in assembler but it's a good overview on the SPI interface of PICs. If you understand how SPI works, it should be trivial to re-write the routines in C.

hayee · 14th February 2008, 07:29 AM

Thankx eng1.
I have already seen that file but i cant understand this.plz give me other links that r in C.i have no knowledge of assembly

simrantogether · 14th February 2008, 09:33 AM

Hi,

Simple...

http://www.best-microcontroller-proj...interface.html

Regards,

Simran..

firewater · 17th February 2008, 05:58 AM

Yes, there seams to be a lack of actual example code for SPI and if you can find some it's usually in asm. Here a some code written in C for Atmel.If anyone knows of more please share.
http://books.google.com/books?id=0vm...O3O0#PPA403,M1

Pommie · 17th February 2008, 06:31 AM

Here's the Master asm code (page 32 of this) in C18.

Code:

void main(){
unsigned char Count=0;
unsigned char Dummy;
    TRISA=0;
    ADCON1=0x06;
    TRISC=0x10;
    SSPSTAT=0x40;
    SSPCON=0x31;
    while(1){
        LATAbits.LATA2=1;
        SSPBUF=Count++;
        while(!SSPSTATbits.BF);
        Dummy=SSPBUF;
        LATAbits.LATA2=0;
        DelaymS(100);
    }
}

By comparing the two, you should be able to convert the slave code as well.

Mike.

MrNobody · 17th February 2008, 09:30 AM

Quote:

Originally Posted by hayee

Hi everyone,
i want some tutorials on spi in C.i am using two pic16f877a controllers.any simple tutorials like blinking leds.i have no concept of spi.please help me out if u guys have any information.
Thanx

Here is a link for CCS C tutorials.. It covers nearly everything to do with PIC programming, from turning ON and OFF LED to UART to SPI to LCD and others..

Hope that helps..

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Latest
SPI Testing with ENC28J60	mikesmixes777	Micro Controllers	9	17th January 2008 07:41 AM
DS1302 Real time clock questions, PIC18F2620 SPI mode and mcu memory usage	ssylee	Micro Controllers	2	18th December 2007 06:37 AM
Both parallel and spi in PIC microcontroller PLEASE HELP	jitun2	Micro Controllers	12	24th October 2007 02:08 PM
Configuration Bits (Nigel's tutorials and Inchworm)	lpinkai	Micro Controllers	7	23rd January 2007 05:38 PM
Tutorials for PIC?	falleafd	Micro Controllers	14	7th July 2003 02:12 PM

14th February 2008, 07:19 AM	(permalink)
hayee	Wanna some tutorials on spi Hi everyone, i want some tutorials on spi in C.i am using two pic16f877a controllers.any simple tutorials like blinking leds.i have no concept of spi.please help me out if u guys have any information. Thanx

14th February 2008, 07:22 AM	(permalink)
eng1	This is a Micorchip reference. It's in assembler but it's a good overview on the SPI interface of PICs. If you understand how SPI works, it should be trivial to re-write the routines in C. Last edited by eng1; 14th February 2008 at 07:28 AM.

14th February 2008, 07:29 AM	(permalink)
hayee	Thankx eng1. I have already seen that file but i cant understand this.plz give me other links that r in C.i have no knowledge of assembly

14th February 2008, 09:33 AM	(permalink)
simrantogether	Well... Hi, Simple... http://www.best-microcontroller-proj...interface.html Regards, Simran.. __________________ Simran.. 8051 Specialist..

17th February 2008, 05:58 AM	(permalink)
firewater	Yes, there seams to be a lack of actual example code for SPI and if you can find some it's usually in asm. Here a some code written in C for Atmel.If anyone knows of more please share. http://books.google.com/books?id=0vm...O3O0#PPA403,M1