RIOT/boards/pttu/board_init.c

/*
 * Copyright (C) 2013 Freie Universität Berlin
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */

/**
 * @ingroup boards_pttu
 * @{
 */

/**
 * @file
 * @brief   PTTU board initialization
 *
 * @author  Heiko Will
 * @author  Kaspar Schleiser
 *
 */
#include "board.h"
#include "msba2_common.h"
#include "VIC.h"
#include "cpu.h"

#define CL_CPU_DIV    4

/*---------------------------------------------------------------------------*/
void init_clks1(void)
{
    /* Disconnect PLL */
    PLLCON &= ~0x0002;
    pllfeed();
    while (PLLSTAT & BIT25) {}          /* wait until PLL is disconnected before disabling - deadlock otherwise */

    /* Disable PLL */
    PLLCON &= ~0x0001;
    pllfeed();
    while (PLLSTAT & BIT24) {}          /* wait until PLL is disabled */

    SCS |= 0x20;                        /* Enable main OSC */
    while( !(SCS & 0x40) ) {}           /* Wait until main OSC is usable */

    /* select main OSC, 16MHz, as the PLL clock source */
    CLKSRCSEL = 0x0001;

    /* Setting Multiplier and Divider values */
    PLLCFG = 0x0008;                    /* M=9 N=1 Fcco = 288 MHz */
    pllfeed();

    /* Enabling the PLL */
    PLLCON = 0x0001;
    pllfeed();

    /* Set clock divider to 4 (value+1) */
    CCLKCFG = CL_CPU_DIV - 1;           /* Fcpu = 72 MHz */

#if USE_USB
    USBCLKCFG = USBCLKDivValue;         /* usbclk = 288 MHz/6 = 48 MHz */
#endif
}

void bl_init_ports(void)
{
    gpio_init_ports();

    /* UART0 */
    PINSEL0 |= BIT4 + BIT6; /* RxD0 and TxD0 */
    PINSEL0 &= ~(BIT5 + BIT7);

    /* Turn Board on */
    PINMODE0 |= BIT1;
    FIO0DIR |= BIT27;
    FIO0CLR = BIT27;

    /* 5V*/
    FIO1DIR |= BIT28; /* Synch */
    FIO1SET = BIT28;  /* No Powersave */

    FIO1DIR |= BIT27; /* 5V off */
    FIO1CLR = BIT27;

    /* Disable Resistors on Buttons */
    PINMODE4 |= BIT9 + BIT11;

    /* Disable Resistors on LED - and Ports to output*/
    PINMODE7 |= BIT19 + BIT21;
    PINMODE2 |= BIT1;
    FIO1DIR |= BIT0;
    FIO3DIR |= BIT25 + BIT26;
    FIO1SET = BIT0;
    FIO3SET = BIT25 + BIT26;

    /* Config and Disable PA */
    FIO1DIR |= BIT25 + BIT26 + BIT22;
    FIO1SET = BIT26;
    FIO1CLR = BIT25;
    FIO1CLR = BIT22; /* PA /Shutdown */
    FIO0DIR |= BIT26; /* ** Important: First put this Port as DA 2.0V and then turn on PA!! */
    FIO0SET = BIT26; /* ** */

    /* Configure GPS */
    PINMODE3 |= BIT3 + BIT7; /* No Pullup on 1.17 & 1.19 */
    PINMODE9 |= BIT27 + BIT25; /* No Pullup for Uart */
    FIO1DIR |= BIT17;
    FIO1CLR = BIT17; /* Turn off GPS */
    FIO1DIR |= BIT19;
    FIO1CLR = BIT19; /* Hold in Reset */
    PINSEL9 |= BIT24 + BIT25 + BIT26 + BIT27; /* 4.28 & 4.29 as Uart3 */

    /* Nanotron */
    FIO2DIR &= ~BIT8;   /* nanotron uC IRQ as input */
    FIO1DIR |= BIT15;   /* nanotron power on reset */
    FIO1DIR &= ~BIT14;  /* nanotron uC RESET as input */
    FIO1DIR &= ~BIT10;  /* nanotron uC Vcc as input */
    FIO1DIR |= BIT9;    /* nanotron ENABLE as output */
    FIO1DIR &= ~BIT4;   /* nanotron Rx/Tx as input */

    FIO1CLR = BIT15;
    FIO1CLR = BIT9;     /* Enable power */

    PINMODE1 |= BIT1;   /* No Pullup for CS */
    FIO0DIR |= BIT16;   /* CS as output */
    FIO0SET = BIT16;    /* drive cs inactive */
    FIO0DIR |= BIT18 + BIT15;   /* SPi Output */

    /* RFID */
    FIO1DIR |= BIT1;    /* RFID Power */
    FIO1CLR = BIT1;     /* */

    FIO0DIR |= BIT1;    /* RFID Reset */
    FIO0SET = BIT1;     /* Hold in Reset */

    FIO0DIR &= ~BIT10;  /* LED as INPUT */
    FIO0DIR &= ~BIT11;  /* DATA as INPUT */
    PINMODE0 |= BIT19 + BIT21; /* No Pullups */

    /* LTC4150 ARM */
    FIO0DIR |= BIT5;
    FIO0CLR = BIT5;

    /* LTC4150 System */
    FIO0DIR |= BIT24;
    FIO0CLR = BIT24;

    /* Battery Voltage (AD) */
    PINMODE1 |= BIT19;
    PINSEL1 &= ~BIT19;
    PINSEL1 |= BIT18;

    /*cc1100 */
    FIO0DIR |= BIT6 + BIT7 + BIT9;
    FIO0SET = BIT6;
    FIO0SET = BIT7 + BIT9;

    /*SD */
    FIO2DIR |= BIT12 + BIT13 + BIT11;
    FIO0DIR |= BIT20 + BIT22 + BIT21;

    /*Tetra */
    FIO2DIR |= BIT0 + BIT7;


    /* No Pullups on any port */
    int nopullup = BIT1 + BIT3 + BIT5 + BIT7 + BIT9 + BIT11 + BIT13 + BIT15 + BIT17 + BIT19 + BIT21 + BIT23 + BIT25 + BIT27 + BIT29 + BIT31;
    PINMODE0 = nopullup - BIT13 - BIT15 - BIT17 - BIT19;
    PINMODE1 = BIT1 + BIT3 + BIT5 + BIT7 + BIT9 + BIT11 + BIT13 + BIT15 + BIT17 + BIT19 + BIT21;
    PINMODE2 = nopullup;
    PINMODE3 = nopullup;
    PINMODE4 = nopullup;
    PINMODE5 = nopullup;
    PINMODE6 = nopullup;
    PINMODE7 = nopullup;
    PINMODE8 = nopullup;
    PINMODE9 = nopullup;
}

/** @} */