board_init.c
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/*
* board_init.c - initialization of the AVSEXTREM-BOARD.
* Copyright (C) 2013 Heiko Will <hwill@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.
*/
/**
* @file
* @brief avsextrem board initialization
*
* @author Heiko Will
* @author Kaspar Schleiser <kaspar@schleiser.de>
* @author Michael Baar
* @author Zakaria Kasmi
* @author Marco Ziegert
* @author Stefan Pfeiffer
*
* @note $Id: board_init.c 1071 2013-09-19 16:50:56 kasmi $
*/
#include "lpc23xx.h"
#include "cpu.h"
#define CL_CPU_DIV 4
/*---------------------------------------------------------------------------*/
static inline void
pllfeed(void)
{
PLLFEED = 0xAA;
PLLFEED = 0x55;
}
/*---------------------------------------------------------------------------*/
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 |= 0x10; // main OSC between 15MHz and 24MHz (more stable in tests)
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);
//PTTU:
/*Turn Board on*/
// PINMODE0 |= BIT1;
// FIO0DIR |= BIT27;
// FIO0CLR = BIT27;
// 0.27
/* 5V*/
// FIO1DIR |= BIT28; // Synch
// FIO1SET = BIT28; // No Powersave
// 1.28
// FIO1DIR |= BIT27; // 5V off
// FIO1CLR = BIT27;
// 1.27
/* Disable Resistors on Buttons */
// PINMODE4 |= BIT9 + BIT11;
//
/* Disable Resistors on LED - and Ports to output*/
PINMODE7 |= BIT19 + BIT21; //3.25 + 3.26
PINMODE2 |= BIT1; //1.0
FIO1DIR |= BIT0;
FIO3DIR |= BIT25 + BIT26;
FIO1SET = BIT0; //all off
FIO3SET = BIT25 + BIT26;
// Config and Disable PA
// FIO1DIR |= BIT25 + BIT26 + BIT22;
// FIO1SET = BIT26;
// FIO1CLR = BIT25;
// FIO1CLR = BIT22; // PA /Shutdown
// Important: First put this Port as DA 2.0V and then turn on PA!!
// FIO0DIR |= BIT26;
// FIO0SET = BIT26;
// 1.22 + 1.25 + 1.26
// 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
// 1.1 + 0.1 + 0.10 + 0.11
// LTC4150 ARM
FIO0DIR |= BIT5;
FIO0CLR = BIT5;
// LTC4150 System
// FIO0DIR |= BIT24;
// FIO0CLR = BIT24;
// 0.23 + 0.24
// Battery Voltage (AD)
PINMODE1 |= BIT19; //0.25
PINSEL1 &= ~BIT19;
PINSEL1 |= BIT18;
//cc1100
FIO0DIR |= BIT6 + BIT7 + BIT9;
FIO0SET = BIT6;
FIO0SET = BIT7 + BIT9;
//SMB380
FIO1DIR |= BIT20 + BIT21 + BIT24; //SCK + CSB + SDI
FIO1SET = BIT21;
FIO1SET = BIT20 + 24;
//SHT11
FIO1DIR |= BIT25; //1.25
PINSEL3 &= ~(BIT12 | BIT13 | BIT18 | BIT19);
//SD
FIO0DIR &= ~(BIT19 | BIT20 | BIT21 | BIT22) ; //0.19 0.20 0.21 0.22 as input
PINMODE1 |= (BIT7) | (BIT9) | (BIT11) | (BIT13); // no resistors
FIO2DIR &= ~(BIT11 + BIT12 + BIT13); //2.11 2.12 2.13 as input
PINMODE4 |= (BIT23) | (BIT25) | (BIT27); // no resistors
}