M:/USB-BDI/USB-BDI/Firmware/MPC555-USB-BDI/src/usbpdi_common.c

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/*
 * Copyright 2006 Free Software Foundation, Inc.
 * 
 * This file is part of USB PDI
 * 
 * USB PDI is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 * 
 * USB PDI is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with USB PDI; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include "usbpdi_common.h"

void initCPU(void){
        CPUCS = bmCLKSPD1 | bmCLKOE;// CPU runs @ 48 MHz, enable CLOCKOUT
    CKCON = 0;                  // MOVX takes 2 cycles (41.7ns @ 48 MHz)

    // set the slave FIFO interface to 48Mhz (internal clock)
        // Use GPIFPorts in Port-Mode
    IFCONFIG = bmIFCLKSRC | bm3048MHZ;
    //IFCONFIG = bmIFGPIF|bmIFCLKSRC|bm3048MHZ; //bmIFGPIF = internal Master default:00-> Port config looks i.o
    SYNCDELAY; //nop nop nop
}

void initEndpoint0(void){
        // reset  endpoint 0 FIFO
    FIFORESET = bmNAKALL;
    SYNCDELAY;
    FIFORESET = 0;
    SYNCDELAY;

    EP0BCH = 0; //Endpoint 0 (Byte Count High) Register
    SYNCDELAY;
}

void initIOPorts(void){
        // configure IO ports (all Ports are available)
    // all are configured as inputs (this is default code not necessary)

    IOA = bmPORT_A_INITIAL;     // Port A initial state
    OEA = bmPORT_A_OUTPUTS;     // Port A direction register

    IOB = bmPORT_B_INITIAL;     // Port B initial state
    OEB = bmPORT_B_OUTPUTS;     // Port B direction register

    OEC = bmPORT_C_OUTPUTS;     // Port C direction register
    
    IOD = bmPORT_D_INITIAL;     // Port D initial state
    OED = bmPORT_D_OUTPUTS;     // Port D direction register

    IOE = bmPORT_E_INITIAL;     // Port E initial state
    OEE = bmPORT_E_OUTPUTS;     // Port E direction register


    /*
     * BDI_555_init()
     * BDIddr (STATUS_LED2 STATUS_LED1 BERR DSCK DSDI DSDO HARD_RESET FREEZE)
     * 0 = input, 1 = output
    */
    BDIddr = BDIddrInit;        // 11000010
    BDIout = BDIoutInit;        // 00000010
}