davincievm.c

TI的DM6446的硬件平台搭建的相关例子

/*
 *  Copyright 2005 by Spectrum Digital Incorporated.
 *  All rights reserved. Property of Spectrum Digital Incorporated.
 *
 *  Not for distribution.
 */

/*
 *  Board Setup ( for ARM and/or DSP )
 *
 */

#include "davincievm.h"
#include "davincievm_ddr.h"
#include "davincievm_emif.h"
#include "davincievm_gpio_exp.h"
#include "davincievm_msp430.h"


/* ------------------------------------------------------------------------ *
 *                                                                          *
 *  DAVINCIEVM_init( )                                                      *
 *                                                                          *
 *                                                                          *
 *                                                                          *
 *                                                                          *
 *                                                                          *
 * ------------------------------------------------------------------------ */
Int16 DAVINCIEVM_init( )
{
    DAVINCIEVM_PMX_init( );                 // Setup Pin Mux

    /* ---------------------------------------------------------------- *
     *                                                                  *
     *  The commented code below is assumed to have already been        *
     *  called in the ARM GEL file.  The GEL file will setup the        *
     *  pll, power domains, ddr2, aemif, and clocks.                    *
     *                                                                  *
     * ---------------------------------------------------------------- */

  //DAVINCIEVM_enableDspPowerDomain( );     // Turn on DSP power domain
  //DAVINCIEVM_enableAllPowerModules( );    // Enable all power modules

  //DAVINCIEVM_enablePll1( 0, 16 );         // Setup Pll1 ( Clk @ 459 MHz )
  //DAVINCIEVM_enablePll1( 0, 21 );         // Setup Pll1 ( Clk @ 594 MHz )

  //DAVINCIEVM_enablePll2( 0, 19, 9, 1 );   // Setup Pll2 ( DDR @ 135 MHz )
  //DAVINCIEVM_enablePll2( 0, 27, 13, 2 );  // Setup Pll2 ( DDR @ 126 MHz )

  //DAVINCIEVM_DDR_init( );                 // Setup DDR2

  //DAVINCIEVM_EMIF_init( );                // Setup EMIF

    DAVINCIEVM_I2C_init( );                 // Setup I2C

    DAVINCIEVM_MSP430_open( );              // Setup MSP430

    DAVINCIEVM_GPIO_EXP_init( );            // Setup GPIO Expander
   
    return 0;
}

/* ------------------------------------------------------------------------ *
 *                                                                          *
 *  DAVINCIEVM_wait( delay )                                                *
 *                                                                          *
 *      Wait in a software loop                                             *
 *                                                                          *
 * ------------------------------------------------------------------------ */
void DAVINCIEVM_wait( Uint32 delay )
{
    volatile Uint32 i;
    for ( i = 0 ; i < delay ; i++ );
}

/* ------------------------------------------------------------------------ *
 *                                                                          *
 *  DAVINCIEVM_waitusec( usec )                                             *
 *                                                                          *
 *      Wait in a software loop for X microseconds                          *
 *                                                                          *
 * ------------------------------------------------------------------------ */
void DAVINCIEVM_waitusec( Uint32 usec )
{
    #ifdef ARM_SIDE

        DAVINCIEVM_wait( ( usec * 51 ) >> 6 );

    #elif DSP_SIDE

        DAVINCIEVM_wait( ( usec * 28 ) );

    #endif
}