dec643.gel

基于dm643的Fir 滤波器的设计

/*--------------------------------------------------------------*/
/* DECDM643.gel                                                 */
/* Version 1.00                                                 */
/*                                                              */
/* This GEL file is designed to be used in conjunction with     */
/* CCS 2.21.00 and the TMS320DM643 based DEC.                   */
/*                                                              */
/*--------------------------------------------------------------*/

/*--------------------------------------------------------------*/
/* The StartUp() function is called each time CCS is started.   */
/* Customize this function to perform desired initialization.   */
/*--------------------------------------------------------------*/

StartUp()
{
    setup_memory_map();
    GEL_Reset();  
    init_emif();
} 

/*--------------------------------------------------------------*/
/* Setup memory map for DM642 EVM.                              */
/*                                                              */
/*--------------------------------------------------------------*/
setup_memory_map()
{

	GEL_MapOn();
	GEL_MapReset();

    /* On-chip memory map */
    GEL_MapAdd(0x00000000, 0, 0x00040000, 1, 1); /* Internal Memory       */
    GEL_MapAdd(0x01800000, 0, 0x00000054, 1, 1); /* EMIFA CTL REGS        */
    GEL_MapAdd(0x01840000, 0, 0x000082FC, 1, 1); /* INT MEM CTL REGS      */
    GEL_MapAdd(0x018C0000, 0, 0x0000003C, 1, 1); /* MCBSP0 CTL REGS       */
    GEL_MapAdd(0x01900000, 0, 0x0000003C, 1, 1); /* MCBSP1 CTL REGS       */
    GEL_MapAdd(0x01940000, 0, 0x00000008, 1, 1); /* TIMER0 CTL REGS       */
    GEL_MapAdd(0x01980000, 0, 0x00000008, 1, 1); /* TIMER1 CTL REGS       */
    GEL_MapAdd(0x019C0000, 0, 0x00000008, 1, 1); /* INT CTL REGS          */
    GEL_MapAdd(0x01A00000, 0, 0x0000FFFC, 1, 1); /* EDMA REGS AND PARAM   */
    GEL_MapAdd(0x01A40000, 0, 0x0000003C, 1, 1); /* MCBSP2 CTL REGS       */
    GEL_MapAdd(0x01A80000, 0, 0x00000054, 1, 1); /* EMIFB CTL REGS        */
    GEL_MapAdd(0x01AC0000, 0, 0x00000008, 1, 1); /* TIMER2 CTL REGS       */
    GEL_MapAdd(0x01B00000, 0, 0x00000024, 1, 1); /* GPIO REGS             */
    GEL_MapAdd(0x01B3F000, 0, 0x00000020, 1, 1); /* Device Configuration  */
    GEL_MapAdd(0x01B40000, 0, 0x0000003C, 1, 1); /* I2C CTL REGS          */
    GEL_MapAdd(0x01B4C000, 0, 0x000002A0, 1, 1); /* McASP0 CTL REGS       */
    GEL_MapAdd(0x01C00000, 0, 0x00000028, 1, 1); /* PCI CTL REGS          */	
    GEL_MapAdd(0x01C20000, 0, 0x0000000C, 1, 1); /* PCI EEPROM REGS       */		
    GEL_MapAdd(0x01C40000, 0, 0x00000270, 1, 1); /* VP0 Control           */
    GEL_MapAdd(0x01C44000, 0, 0x00000270, 1, 1); /* VP1 Control           */
    GEL_MapAdd(0x01C48000, 0, 0x00000270, 1, 1); /* VP2 Control           */
    GEL_MapAdd(0x01C80000, 0, 0x00000680, 1, 1); /* EMAC CTL REGS         */
    GEL_MapAdd(0x01C81000, 0, 0x00002000, 1, 1); /* EMAC Wrapper          */
    GEL_MapAdd(0x01C83000, 0, 0x0000000C, 1, 1); /* EWRAP REGS            */
    GEL_MapAdd(0x01C83800, 0, 0x00000090, 1, 1); /* MDIO CTL REGS         */	
    GEL_MapAdd(0x02000000, 0, 0x00000030, 1, 1); /* QDMA REGS             */
    GEL_MapAdd(0x30000000, 0, 0x04000000, 1, 1); /* MCBSP0 Data, EDMA map */
    GEL_MapAdd(0x34000000, 0, 0x04000000, 1, 1); /* MCBSP1 Data, EDMA map */
    GEL_MapAdd(0x74000000, 0, 0x02000000, 1, 1); /* VP0 Channel A Data    */
    GEL_MapAdd(0x76000000, 0, 0x02000000, 1, 1); /* VP0 Channel B Data    */
    GEL_MapAdd(0x78000000, 0, 0x02000000, 1, 1); /* VP1 Channel A Data    */
    GEL_MapAdd(0x7A000000, 0, 0x02000000, 1, 1); /* VP1 Channel B Data    */
    GEL_MapAdd(0x7C000000, 0, 0x02000000, 1, 1); /* VP2 Channel A Data    */
    GEL_MapAdd(0x7E000000, 0, 0x02000000, 1, 1); /* VP2 Channel B Data    */

    /* Off-chip memory map */
    GEL_MapAdd(0x80000000, 0, 0x02000000, 1, 1); /* 32MB SDRAM EMIF-A, CE0*/
    GEL_MapAdd(0x90000000, 0, 0x00080000, 1, 1); /* 4MB Flash EMIF-A, CE1 */
    GEL_MapAdd(0x90080000, 0, 0x00080000, 1, 1); /* 4MB FPGA EMIF-A, CE1  */    
    GEL_MapAdd(0xA0000000, 0, 0x10000000, 1, 1); /* EMIF-A, CE2 EXPANSION */
    GEL_MapAdd(0xB0000000, 0, 0x10000000, 1, 1); /* EMIF-A, CE3 EXPANSION */
}

/*--------------------------------------------------------------*/
/* init_emif() 		                                            */
/*--------------------------------------------------------------*/
init_emif()
{

#define EMIFA_GCTL       0x01800000
#define EMIFA_CE1        0x01800004
#define EMIFA_CE0        0x01800008
#define EMIFA_CE2        0x01800010
#define EMIFA_CE3        0x01800014
#define EMIFA_SDRAMCTL   0x01800018
#define EMIFA_SDRAMTIM   0x0180001c
#define EMIFA_SDRAMEXT   0x01800020
#define EMIFA_CE1SECCTL  0x01800044
#define EMIFA_CE0SECCTL  0x01800048
#define EMIFA_CE2SECCTL  0x01800050
#define EMIFA_CE3SECCTL  0x01800054
	
    /* EMIFA */
    *(int *)EMIFA_GCTL     = 0x00052078;
    *(int *)EMIFA_CE0      = 0xffffffd3;  /* CE0 SDRAM                     */
    *(int *)EMIFA_CE1      = 0x73a28e01;  /* CE1 Flash + CPLD              */
    *(int *)EMIFA_CE2      = 0x22a28a22;  /* CE2 Daughtercard 32-bit async */
    *(int *)EMIFA_CE3      = 0x22a28a42;  /* CE3 Daughtercard 32-bit sync  */
    *(int *)EMIFA_SDRAMCTL = 0x57115000;  /* SDRAM control                 */
    *(int *)EMIFA_SDRAMTIM = 0x0000081b;  /* SDRAM timing (refresh)        */
    *(int *)EMIFA_SDRAMEXT = 0x001faf4d;  /* SDRAM extended control        */
    *(int *)EMIFA_CE0SECCTL= 0x00000002;  /* CE0 Secondary Control Reg.    */
    *(int *)EMIFA_CE1SECCTL= 0x00000002;  /* CE1 Secondary Control Reg.    */
    *(int *)EMIFA_CE2SECCTL= 0x00000002;  /* CE2 Secondary Control Reg.    */
    *(int *)EMIFA_CE3SECCTL= 0x00000073;  /* CE3 Secondary Control Reg.    */	
}

/*--------------------------------------------------------------*/
/* clear_memory_map()                                           */
/*--------------------------------------------------------------*/
clear_memory_map()
{
    GEL_MapOff();
}

/*--------------------------------------------------------------*/
/* FlushCache()                                                 */
/*--------------------------------------------------------------*/ 
FlushCache()   
{ 
    /* Invalidate L1I and L1D */
    *(int *)0x01840000 = (*(int *)0x01840000 | 0x00000300);
    
    /* Clean L2 */
    *(int *)0x01845004 = 0x1; 
}   


/*--------------------------------------------------------------*/
/* OnReset()                                                    */
/*--------------------------------------------------------------*/
OnReset(int nErrorCode)
{
    init_emif();	
}


/*--------------------------------------------------------------*/
/* OnPreFileLoaded()                                            */
/* This function is called automatically when the 'Load Program'*/
/* Menu item is selected.                                       */
/*--------------------------------------------------------------*/
OnPreFileLoaded()
{
/*	GEL_Reset(); 	 -- Commented out for CCS 2.20 */
	FlushCache(); 
	IER = 0;
	IFR = 0;
	init_emif();
}

/*--------------------------------------------------------------*/
/* OnRestart()                                                  */
/* This function is called by CCS when you do Debug->Restart.   */
/* The goal is to put the C6x into a known good state with      */
/* respect to cache, edma and interrupts.                       */
/* Failure to do this can cause problems when you restart and   */
/* run your application code multiple times.  This is different */
/* then OnPreFileLoaded() which will do a GEL_Reset() to get the*/
/* C6x into a known good state.                                 */
/*--------------------------------------------------------------*/
OnRestart(int nErrorCode )
{
      /* Turn off L2 for all EMIFA CE spaces.  App should
      *  manage these for coherancy in the application.
      *  GEL_TextOut("Turn off cache segment\n");
      */
      *(int *)0x1848200 = 0;  /* MAR0 */
      *(int *)0x1848204 = 0;  /* MAR1 */
      *(int *)0x1848208 = 0;  /* MAR2 */
      *(int *)0x184820c = 0;  /* MAR3 */
      
      /* Disable EDMA events and interrupts and clear any
      *  pending events.
      *  GEL_TextOut("Disable EDMA event\n");  
      */               
      *(int *)0x01A0FFA8 = 0;          /* CIERH */           
      *(int *)0x01A0FFB4 = 0;          /* EERH */
      *(int *)0x01A0FFB8 = 0XFFFFFFFF; /* ECRH */
            
      *(int *)0x01A0FFE8 = 0;          /* CIERL */           
      *(int *)0x01A0FFF4 = 0;          /* EERL */
      *(int *)0x01A0FFF8 = 0xFFFFFFFF; /* ECRL */
      
      /* Disable other interrupts */
      IER = 0;
      IFR = 0;
}	

/*--------------------------------------------------------------*/
/* RESET MENU                                                   */
/*--------------------------------------------------------------*/ 
menuitem "Resets";

hotmenu Reset_BreakPts_and_EMIF()
{
	GEL_BreakPtReset();
	GEL_Reset();
	init_emif();
} 

hotmenu Flush_Cache() 
{ 
	FlushCache();
} 

/*--------------------------------------------------------------*/
/* MEMORY MAP MENU                                              */
/*--------------------------------------------------------------*/ 
menuitem "Memory Map";

hotmenu SetMemoryMap()
{
	setup_memory_map();
}

hotmenu ClearMemoryMap()
{
	clear_memory_map();
}

/*--------------------------------------------------------------*/
/* BOARD OPTIONS MENU                                           */
/*--------------------------------------------------------------*/ 
menuitem "Board Options";

#define CPLD_REVISION 0x9008001F

hotmenu CheckFPGARevision()
{
	GEL_TextOut(" FPGA Revision %d\n","Output",1,1,1, *(char *)CPLD_REVISION);
	GEL_TextOut(" Note: Revision only valid if FGPA DONE LED is on (DS9)\n","Output",1,1,1);
}
menuitem "SEED-DEC643 UART CHANNEL SELECT";

hotmenu UART_A_CHANNEL_SELECT()
{
	*(unsigned char *)(0x30000) = 0x01;		
}

hotmenu UART_B_CHANNEL_SELECT()
{
	*(unsigned char *)(0x30000) = 0x02;		
}

hotmenu UART_AB_CHANNEL_SELECT()
{
	*(unsigned char *)(0x30000) = 0x03;		
}