main.c

silicon wireless开发套件F920+Si4432原理图,源码

/*
** ============================================================================
**
** FILE
**  main.c
**
** DESCRIPTION
**  Main file of the Si443x demo
**
** CREATED
**  Silicon Laboratories Hungary Ltd
**
** COPYRIGHT
**  Copyright 2008 Silicon Laboratories, Inc.  
**	http://www.silabs.com
**
** ============================================================================
*/
/*------------------------------------------------------------------------*/
/*						INCLUDE											  */
/*------------------------------------------------------------------------*/

#include "S8051.h"
#include "uart.h"
#include "dog_glcd.h"
#include "timers.h"
#include "IA443x_demo.h"

/*------------------------------------------------------------------------*/
/*						GLOBAL variables								  */
/*------------------------------------------------------------------------*/
extern bit fUartCommandReceived;

/*------------------------------------------------------------------------*/
/*						FUNCTION prototypes								  */
/*------------------------------------------------------------------------*/
void InitHw(void);


/* ============================================================ *
 *							MAIN PROGRAM						* 
 * ============================================================ */
void main(void)															
{
	//initialize the HW
	InitHw();
	//initialize the demo
	DemoInit();

	//main loop
	while(1)
	{
		DemoStateMachine();

		//if uart command received, handle it
		if(fUartCommandReceived == TRUE)
		{
			fUartCommandReceived = FALSE;
			UartCommandInterpreter();
		}
	}
}


void InitHw(void)
{
    //Disable the Watchdog Timer
	PCA0MD &= ~0x40;                    
    PCA0MD = 0x00;

	//I/O PORT INIT
    // P0.0  -  Skipped,     Open-Drain, Digital
    // P0.1  -  Skipped,     Open-Drain, Digital
    // P0.2  -  Skipped,     Open-Drain, Analog
    // P0.3  -  Skipped,     Open-Drain, Analog
    // P0.4  -  TX0 (UART0), Push-Pull,  Digital
    // P0.5  -  RX0 (UART0), Open-Drain, Digital
    // P0.6  -  Skipped,     Open-Drain, Digital
    // P0.7  -  Skipped,     Open-Drain, Digital
    // P1.0  -  SCK  (SPI1), Push-Pull,  Digital
    // P1.1  -  MISO (SPI1), Open-Drain, Digital
    // P1.2  -  MOSI (SPI1), Push-Pull,  Digital
    // P1.3  -  Skipped,     Push-Pull,  Digital
    // P1.4  -  Skipped,     Push-Pull,  Digital
    // P1.5  -  Skipped,     Push-Pull,  Digital
    // P1.6  -  Skipped,     Push-Pull,  Digital
    // P1.7  -  Skipped,     Push-Pull,  Digital

    // P2.0  -  Skipped,     Open-Drain, Digital
    // P2.1  -  Skipped,     Open-Drain, Digital
    // P2.2  -  Skipped,     Push-Pull,  Digital
    // P2.3  -  Skipped,     Push-Pull,  Digital
    // P2.4  -  Skipped,     Push-Pull,  Digital
    // P2.5  -  Skipped,     Push-Pull,  Digital
    // P2.6  -  Skipped,     Push-Pull,  Digital
    // P2.7  -  Skipped,     Push-Pull,  Digital
    P0MDIN    = 0xF3;
    P0MDOUT   = 0x10;
    P0SKIP    = 0xCF;

	P1MDIN	  = 0xFF;
    P1MDOUT   = 0xFD;
    P1SKIP    = 0xF8;

	P2MDIN	  = 0xFF;
    P2MDOUT   = 0xFC;
    P2SKIP    = 0xFF;
	
	SFRPAGE   = CONFIG_PAGE;
	P0DRV 	  = 0x10;	
    P1DRV     = 0xFD;
    P2DRV     = 0xFC;
	SFRPAGE   = LEGACY_PAGE;
 
    XBR0      = 0x01;
    XBR1      = 0x40;
    XBR2      = 0x40;
	//set inputs
	P0     	  |= 0xE3;                      //Set P0 inputs
	P1		  |= 0x02;						//Set P1 inputs
	P2		  |= 0x03;						//Set P2 inputs
	//default I/O port
	LED1_PIN 		= 0;
	LED2_PIN 		= 0;
	LED3_PIN 		= 0;
	LED4_PIN 		= 0;
	BLED_PIN 		= 0;
	LCD_NSEL_PIN 	= 1;
	LCD_A0_PIN 		= 0;
	LCD_RESET_PIN	= 1;		

	//Oscillator init: external XTAL (16MHz), SYSCLK=XTAL/2
    OSCXCN    = 0x77;
    while ((OSCXCN & 0x80) == 0);
    CLKSEL    = 0x01;

	//Initialize SPI
	SetHwMasterSpi();
	//Initialize Uart
	UartInit();
	//initialize the LCD
	LcdInit();
	//enable interrupts
	EnableGlobalIt();
}