c6713test.c

6713falsh burn 烧写flash

/*
 *  Copyright 2007 by WXK
 * 
 */
/**************************************************************************/
/*                                                                         */
/*     c6713test . C                                                       */
/*                                                                         */
/*     Basic C standard I/O from main.                                     */
/*                                                                         */
/*                                                                         */
/***************************************************************************/

#include "math.h"
#include "c6713regs.h"

void sys_init();
void IO_test1();
void IO_test2();
void INT_test();
void SRAM_test();
void INSTRU_test();
void asmtest();
void other();

int Gpio_val,Gpio_tmp;
/*
 *  ======== main ========
 */
/* you can use intrinsics function that map directly to inlined C6713
*instruction,for detail,see TMS320C6000 Programmer's Guide
*for example 
*int _abs(int);//map to assembly instruction ABS
*int b = _abs(-2);
*/

void main()
{
	sys_init();
	Gpio_val = GPVAL;
	while(1)
		{
			Gpio_tmp = GPVAL;
			if(Gpio_tmp&0x0000FFFF == 0x0000FFFF)
				{
					switch(Gpio_val&0x0000000E)
						{
							case 0x00000000:
								IO_test1();		//IO Test 1
								break;
							case 0x00000002:
								IO_test2();		//IO Test 2
								break;
							case 0x00000004:
								INT_test();		//External Interrupt Test
								break;
							case 0x00000006:
								SRAM_test();	//External SRAM Test
								break;
							case 0x00000008:
								INSTRU_test();	//Instruction Set Test
								break;
							default:
								other();		//return
						}		
	
					}
				else
					asm(" nop 5 ");
			}
					
}

void sys_init()
{
/* config the CSR,disables all interrupts,except the reset and NMI */
	asm(" mvk 00000100h,a0 ");
	asm(" mvc a0,CSR ");

/* config the AMR(addressing mode register) */
	asm(" mvk 00000000h,a0 ");
	asm(" mvc a0,AMR ");	//all mode are linear modification

/* congig the interrupt Enable Register */
	asm(" mvk 00000001h,a0 ");
	asm(" mvc a0,IER ");	//disable all nonreset interrupts
	
	DEVCFG = 0x0000000F;	//2 I2C + 2 McASP + GPIO

/* config the EMIF registers */
	GBLCTL = 0x00003080;	//clkout1 and clkout2 are held high,hold is disabled
	CECTL1 = 0xFFFFFF13;	//asynchronous 16-bit-wide interface
	CECTL0 = 0xFFFFFF13;	//asynchronous 16-bit-wide interface
	
	EXTPOL = 0x00000000;	//a low-to-high transition on an interrupt source is recognized as an interrupt

/* config the PLL registers */
	PLLCSR = 0x00000009;	//divider D0 and PLL are not bypassed
	PLLM = 0x00000004;		//*4
	PLLDIV0 = 0x00008001;	//divided by 2,dsp core is working at 40M
	
/* config the GPIO registers */
	GPEN = 0x0000FFFF;	    
}


void IO_test1()
{
	GPDIR = 0x000000FF;		//GP0-7 are output,GP8-15 are input
	while(1)
	{
		Gpio_val = GPVAL;
		GPVAL = (Gpio_val&0x0000FF00)>>8;
	}
}

void IO_test2()
{
	GPDIR = 0x0000FF00;		//GP0-7 are input,GP8-15 are output
	while(1)
	{
		Gpio_val = GPVAL;
		GPVAL = (Gpio_val&0x000000FF)<<8;
	}
}

void INT_test()
{
/* config the CSR,enables all interrupts,except the reset and NMI */
	asm(" mvk 00000101h,a0 ");
	asm(" mvc a0,CSR ");
/* congig the interrupt Enable Register */
	asm(" mvkl 0FFF3h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//enable all interrupts
	GPDIR = 0x0000000F;		//GP0-3 are output,GP4-15 are input
	while(1)
		{
			asm(" nop 8 ");
		}
}

void SRAM_test()
{
//	short *a;
//	a = &*((volatile int *)0x80000000);
}
	
void INSTRU_test()
{
	GPDIR = 0x0000FFFF;		//GP0-15 are output
	asmtest();
}
void other()
{
	asm(" nop 5 ");
}

void interrupt capNMI()
{
	asm(" mvkl 0001h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//disable all interrupts
	GPVAL = 0x00000001;
	asm(" mvkl 0FFF3h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//enable all interrupts
	
}
void interrupt capint4()
{
	asm(" mvkl 0001h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//disable all interrupts
	GPVAL = 0x00000002;
	asm(" mvkl 0FFF3h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//enable all interrupts
}
void interrupt capint5()
{
	asm(" mvkl 0001h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//disable all interrupts
	GPVAL = 0x00000003;
	asm(" mvkl 0FFF3h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//enable all interrupts
}
void interrupt capint6()
{
	asm(" mvkl 0001h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//disable all interrupts
	GPVAL = 0x00000004;
	asm(" mvkl 0FFF3h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//enable all interrupts
}
void interrupt capint7()
{
	asm(" mvkl 0001h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//disable all interrupts
	GPVAL = 0x00000005;
	asm(" mvkl 0FFF3h,a0 ");
	asm(" mvklh 0000h,a0 ");
	asm(" mvc a0,IER ");	//enable all interrupts
}