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#define CMSIS_BITPOSITIONS
#include <__cross_studio_io.h>
#include "lpc43xx.h"


//
// Configure LPC43xx ARM Cortex M4 microcontroller to 204 MHz using 12 MHz crystal
// 

void Configure_Main_Clock_And_Busses()

Aflecht

//
// Configure LPC43xx ARM Cortex M4 microcontroller to 204 MHz using 12 MHz crystal
//

#define CMSIS_BITPOSITIONS
#include "lpc43xx.h"


void Configure_Clocks()
{

Aflecht

    // Initialize SysTick timer
    uint32_t* p_systick = (uint32_t*) 0xE000E010;   // SysTick memory address
    p_systick[1]  = 0x00FFFFFF;                     // This value will be loaded automatically into p_systick[2] everytime the counter hits zero
    p_systick[2]  = 0x00000000;                     // Set from which value we start counting down
    p_systick[0] |= 1;                              // Start the SysTick timer

    // Reset the SysTick counter to ANY 24bit value WHENEVER you want
    // The timer instantly starts counting down from that value
    // Here we reset it to its max value of 0x00FFFFFF
    p_systick[2] = 0x00FFFFFF;

Aflecht

//
// Clock STM32F37x to 72 MHz using 8 MHz crystal
//

#include <stm32f37x.h>

/*
AHB  = max 72 MHz
APB2 = max 72 MHz
APB1 = max 36 MHz