First LPC2148 ARM7 microcontroller test – led blink

/*************************************************
* WinARM Demo P0.16 blink
**************************************************/
#include "types.h"
#include "LPC214x.h"
#include "config.h"
#include "armVIC.h"
#define IOPINS016 16
static void lowInit(void)
{
// set PLL multiplier & divisor.
// values computed from config
PLLCFG = PLLCFG_MSEL | PLLCFG_PSEL;
// enable PLL
PLLCON = PLLCON_PLLE;
PLLFEED = 0xAA; // Make it happen. These two updates
PLLFEED = 0x55; // MUST occur in sequence.
// setup the parallel port pin
IO0CLR = (1<
IO0SET &= ~(1<
IO0DIR =(1<
// wait for PLL lock
while (!(PLLSTAT & PLLSTAT_LOCK))
continue;
// enable & connect PLL
PLLCON = PLLCON_PLLE | PLLCON_PLLC;
PLLFEED = 0xAA; // Make it happen. These two updates
PLLFEED = 0x55; // MUST occur in sequence.
// setup & enable the MAM
MAMTIM = MAMTIM_CYCLES;
MAMCR = MAMCR_FULL;
// set the peripheral bus speed
// value computed from config.h
VPBDIV = VPBDIV_VALUE; // set the peripheral bus clock speed
}
/**/
static void sysInit(void)
{
lowInit(); // setup clocks and processor port pins
// set the interrupt controller defaults
#if defined(RAM_RUN)
MEMMAP = MEMMAP_SRAM; // map interrupt vectors space into SRAM
#elif defined(ROM_RUN)
MEMMAP = MEMMAP_FLASH; // map interrupt vectors space into FLASH
#else
#error RUN_MODE not defined!
#endif
VICIntEnClear = 0xFFFFFFFF; // clear all interrupts
VICIntSelect = 0x00000000; // clear all FIQ selections
VICDefVectAddr = (uint32_t)reset; // point unvectored IRQs to reset()
}
static void _delay(uint32_t N)
{
for (uint32_t i=0; i
}
int main(void)
{
sysInit();
for (;;)
{
IO0CLR = (1<
_delay(900000);
IO0SET = (1<
_delay(900000);
}
return 0;
}