main.c

瑞泰创新的GX-ARM9-2410EP教学实验系统GPS具体源代码,处理器是三星2410

//====================================================================
// File Name : 2410test.c
// Function  : S3C2410 Test Main Menu
// Program   : Shin, On Pil (SOP)
// Date      : May 30, 2002
// Version   : 0.0
// History
//   0.0 : Programming start (February 20,2002) -> SOP
//   1.0 (20020530) : First release for customer
//   1.1 (20020801) : Strata NOR Flash Added and etc. -> SOP
//====================================================================

#include <stdlib.h>
#include <string.h>

#include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h"
#include "mmu.h"


void Isr_Init(void);
void HaltUndef(void);
void HaltSwi(void);
void HaltPabort(void);
void HaltDabort(void);
void Led_Display(int data);


void InitUart2(int baud)
{
    //Ports  :  GPH10    GPH9  GPH8 GPH7  GPH6  GPH5 GPH4 GPH3 GPH2 GPH1  GPH0 
    //Signal : CLKOUT1 CLKOUT0 UCLK RXD2 TXD2 RXD1 TXD1 RXD0 TXD0 nRTS0 nCTS0
    //Binary :   10   ,  10     10 , 10    10  , 10   10 , 10   10 , 10    10
    rGPHCON = 0x2aaaaa;
    rGPHUP  = 0x7ff;    // The pull up function is disabled GPH[10:0]

    rULCON2 = 0x3;   //Line control register : Normal,No parity,1 stop,8 bits
     //    [10]       [9]     [8]        [7]        [6]      [5]         [4]           [3:2]        [1:0]
     // Clock Sel,  Tx Int,  Rx Int, Rx Time Out, Rx err, Loop-back, Send break,  Transmit Mode, Receive Mode
     //     0          1       0    ,     0          1        0           0     ,       01          01
     //   PCLK       Level    Pulse    Disable    Generate  Normal      Normal        Interrupt or Polling
    rUCON2  = 0x245;                        // Control register
    rUBRDIV2=( (int)(PCLK/16./baud) -1 );   //Baud rate divisior register 0
    //rUBRDIV2=( (int)(pclk/16./baud+0.5) -1 );   //Baud rate divisior register 0    
    rUFCON2 = 0x0;   //UART channel 2 FIFO control register, FIFO disable
}

void InitUart1(int baud)
{
    //=== PORT H GROUP
    //Ports  :  GPH10    GPH9  GPH8 GPH7  GPH6  GPH5 GPH4 GPH3 GPH2 GPH1  GPH0 
    //Signal : CLKOUT1 CLKOUT0 UCLK nCTS1 nRTS1 RXD1 TXD1 RXD0 TXD0 nRTS0 nCTS0
    //Binary :   10   ,  10     10 , 11    11  , 10   10 , 10   10 , 10    10
    rGPHCON = 0x2afaaa;
    rGPHUP  = 0x7ff;    // The pull up function is disabled GPH[10:0]

    rUMCON1 = 0x11;   //UART chaneel 1 MODEM control register, AFC disable

    rULCON1 = 0x3;
    rUCON1  = 0x245;
    rUBRDIV1=( (int)(PCLK/16./baud) -1 );
}

void RunGPRSTest()
{
	char key=0;
	InitUart1(9600);
	while (1)
	{
//		if(rUMSTAT0 & 0x04)
			rUMCON1 |= rUMSTAT0 & 0x01;

    	if((rUTRSTAT0 & 0x1))
    	{
    		key = RdURXH0();
    		if(key == 0x1b)
    			break;
    		if(rUMSTAT1 & 0x01)
    		{
	    		while(!(rUTRSTAT1 & 0x2));
	    		WrUTXH1(RdURXH0());
    		}
    	}

//		if(rUMSTAT1 & 0x04)
			rUMCON0 |= rUMSTAT1 & 0x01;
    	if((rUTRSTAT1 & 0x1))
    	{
    		while(!(rUTRSTAT0 & 0x2));
    		WrUTXH0(RdURXH1());
    	}
	}
}

void RunGPSTest()
{
	char key=0;
	InitUart2(9600);
	while (1)
	{
    	if((rUTRSTAT0 & 0x1))
    	{
    		key = RdURXH0();
    		if(key == 0x1b)
    			return;
    		while(!(rUTRSTAT2 & 0x2));
    		WrUTXH2(key);
    	}
    	if((rUTRSTAT2 & 0x1))
    	{
    		while(!(rUTRSTAT0 & 0x2));
    		WrUTXH0(RdURXH2());
    	}
	}
}
//===================================================================
void Main(void)
{
	char key=0;

    Led_Display(0x0f);
    Led_Display(0x00);    
    
    MMU_Init();
   
    ChangeClockDivider(1,1);          // 1:2:4    

    ChangeMPllValue(0xa1,0x3,0x1);    // FCLK=202.8MHz  
    
    Port_Init();
    Isr_Init();

    Uart_Init(0,115200);
    rUMCON0 = 0x11;
    Uart_Select(0);
    
    Uart_Printf("\n GPRS/GPS TEST\n");
    Uart_Printf("\n Press any key to continue...\n");
    while(!Uart_GetKey());
	
	while(1)
	{
		Uart_Printf("======== Menu ========");
		Uart_Printf("\n[1] Run GPRS test");
		Uart_Printf("\n[2] Run GPS test");
		Uart_Printf("\nSelect:");
		key = Uart_Getch();
		Uart_Printf("%c\n", key);
		switch(key)
		{
		case '1':
			RunGPRSTest();
			break;
		case '2':
			RunGPSTest();
			break;
		default:
			Uart_Printf("\n\n");
			break;
		}
	}
}

//===================================================================
//Active is low.(LED On)
// GPF7  GPF6   GPF5   GPF4
//nLED_1 nLED2 nLED_4 nLED_3
void Led_Display(int data)
{
//    rGPFDAT = (rGPFDAT & 0xf) | !((data & 0xf)<<4);
    rGPFDAT = (rGPFDAT & ~(0xf<<4)) | ((~data & 0xf)<<4);    
}


//===================================================================
void Isr_Init(void)
{
    pISR_UNDEF  = (unsigned)HaltUndef;
    pISR_SWI    = (unsigned)HaltSwi;
    pISR_PABORT = (unsigned)HaltPabort;
    pISR_DABORT = (unsigned)HaltDabort;
    
    rINTMOD     = 0x0;                     //All=IRQ mode
    rINTMSK     = BIT_ALLMSK;              //All interrupt is masked.
    rINTSUBMSK  = BIT_SUB_ALLMSK;          //All sub-interrupt is masked. <- April 01, 2002 SOP

}

//===================================================================
void HaltUndef(void)
{
    Uart_Printf("Undefined instruction exception.\n");
    while(1);
}

//===================================================================
void HaltSwi(void)
{
    Uart_Printf("SWI exception.\n");
    while(1);
}

//===================================================================
void HaltPabort(void)
{
    Uart_Printf("Pabort exception.\n");
    while(1);
}

//===================================================================
void HaltDabort(void)
{
    Uart_Printf("Dabort exception.\n");
    while(1);
}