board_init.c
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/*
* main.c - Main function of the SRF02 ultrasonic sensor project.
* Copyright (C) 2013 Zakaria Kasmi <zkasmi@inf.fu-berlin.de>
*
* 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 msba2
* @{
*/
/**
* @file
* @brief MSB-A2 board initialization
*
* @author Heiko Will
* @author Kaspar Schleiser
* @author Michael Baar <baar@inf.fu-berlin.de>
* @author Zakaria Kasmi <zkasmi@inf.fu-berlin.de>
*
* @note $Id$
*/
#include "board.h"
#include "cpu.h"
void bl_init_ports(void)
{
gpio_init_ports();
/* UART0 */
PINSEL0 |= BIT4 + BIT6; // RxD0 and TxD0
PINSEL0 &= ~(BIT5 + BIT7);
/* LEDS */
FIO3DIR |= LED0_MASK;
FIO3DIR |= LED1_MASK;
LED0_OFF;
LED0_OFF;
}
void init_clks1(void)
{
// Disconnect PLL
PLLCON &= ~0x0002;
pllfeed();
// Disable PLL
PLLCON &= ~0x0001;
pllfeed();
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
}