#include
#include
#include "lpc23xx.h"

void StartPLL(void);
void GPIOinit(void);

int main(void){
// MAM init
#define MODECTRL 0 //MODECTRL 1:0
#define CYCLES 0 //CYCLES 2:0
MAMCR = 0;
MAMTIM = 3< 40 MHz
MAMCR = 2<
StartPLL();
GPIOinit();
FIO2DIR = (1<<4)|(1<<3);
while(1)
FIO2PIN ^= (1<<4)|(1<<3);
return 0;
}


void StartPLL(void)
{
#define OSCRANGE 4
#define OSCEN 5
#define OSCSTAT 6

#define PLLC 1
#define PLLE 0

#define CLKSRC 0

#define MSEL 0 //MSEL 14:0
#define NSEL 16 //NSEL23:16

#define PLLSTAT_PLLC 25
#define PLLSTAT_PLLE 24
#define PLOCK 26
#define PCLK_GPIO 2 //PCLK_GPIO 3:2

// 1. Init OSC
SCS &=~(1< SCS |=(1< // 2. Wait for OSC ready
while (!(SCS&(1<
// 3. Disconnect PLL
PLLCON &=~(1< PLLFEED = 0xAA;
PLLFEED = 0x55;
// 4. Disable PLL
PLLCON &=~(1< PLLFEED = 0xAA;
PLLFEED = 0x55;
// 5. Select source clock for PLL
CLKSRCSEL = (1<
// 6. Set PLL settings 288 MHz (from 12MHz), Fpll=(2*12(M)*12MHz/1(N))
PLLCFG = ((12-1)<< PLLFEED = 0xAA;
PLLFEED = 0x55;
// 7. Enable PLL
PLLCON |= (1< PLLFEED = 0xAA;
PLLFEED = 0x55;
// 8. Wait for the PLL to achieve lock
while(!(PLLSTAT&(1<
// 9. Set clk divider settings
CCLKCFG = 6-1; // 1/6 Fpll
USBCLKCFG = 6-1; // 1/6 Fpll - 48 MHz
PCLKSEL0 = PCLKSEL1 = 0; // other peripherals
PCLKSEL1 |= 1<
// 10. Connect the PLL
PLLCON |= (1< PLLFEED = 0xAA;
PLLFEED = 0x55;
}

void GPIOinit(void)
{
#define GPIOM 0
#define IO0DIR (*(volatile unsigned long *)0xE0028008)
#define IO1DIR (*(volatile unsigned long *)0xE0028018)
// Set to inputs
IO0DIR =\
IO1DIR =\
FIO0DIR =\
FIO1DIR =\
FIO2DIR =\
FIO3DIR =\
FIO4DIR = 0;

// Enable Fast GPIO0,1
SCS |=1<
// clear mask registers
FIO0MASK =\
FIO1MASK =\
FIO2MASK =\
FIO3MASK =\
FIO4MASK = 0;

// Reset all GPIO pins to default primary function
PINSEL0 =\
PINSEL1 =\
PINSEL2 =\
PINSEL3 =\
PINSEL4 =\
PINSEL5 =\
PINSEL6 =\
PINSEL7 =\
PINSEL8 =\
PINSEL9 =\
PINSEL10= 0;
}