LPC2378 interface with LED C Code:
#include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
Config.h
#if USE_USB /* 1 is USB, 0 is non-USB related */
/* Fcck = 57.6Mhz, Fosc = 288Mhz, and USB 48Mhz */
#define PLL_MValue 11
#define PLL_NValue 0
#define CCLKDivValue 4
#define USBCLKDivValue 5
/* System configuration: Fosc, Fcclk, Fcco, Fpclk must be defined */
/* PLL input Crystal frequence range 4KHz~20MHz. */
#define Fosc 12000000
/* System frequence,should be less than 80MHz. */
#define Fcclk 57600000
#define Fcco 288000000
#else
/* Fcck = 50Mhz, Fosc = 300Mhz, and USB 48Mhz */
#define PLL_MValue 24
#define PLL_NValue 1
#define CCLKDivValue 5
#define USBCLKDivValue 6
/* System configuration: Fosc, Fcclk, Fcco, Fpclk must be defined */
/* PLL input Crystal frequence range 4KHz~20MHz. */
#define Fosc 12000000
/* System frequence,should be less than 80MHz. */
#define Fcclk 50000000
#define Fcco 300000000
#endif
/* APB clock frequence , must be 1/2/4 multiples of ( Fcclk/4 ). */
/* If USB is enabled, the minimum APB must be greater than 16Mhz */
#if USE_USB
#define Fpclk (Fcclk / 2)
#else
#define Fpclk (Fcclk / 4)
#endif
void init_VIC(void)
{
long i = 0;
long *vect_addr, *vect_cntl;
/* initialize VIC*/
VICIntEnClear = 0xffffffff;
VICAddress = 0;
VICIntSelect = 0;
/* set all the vector and vector control register to 0 */
for ( i = 0; i < VIC_SIZE; i++ )
{
vect_addr = (long *)(VIC_BASE_ADDR + VECT_ADDR_INDEX + i*4);
vect_cntl = (long *)(VIC_BASE_ADDR + VECT_CNTL_INDEX + i*4);
*vect_addr = 0×0;
*vect_cntl = 0xF;
}
return;
}
void GPIOResetInit( void )
{
/* Reset all GPIO pins to default: primary function */
PINSEL0 = 0×00000000;
PINSEL1 = 0×00000000;
PINSEL2 = 0×00000000;
PINSEL3 = 0×00000000;
PINSEL4 = 0×00000000;
PINSEL5 = 0×00000000;
PINSEL6 = 0×00000000;
PINSEL7 = 0×00000000;
PINSEL8 = 0×00000000;
PINSEL9 = 0×00000000;
PINSEL10 = 0×00000000;
IO0DIR = 0×00000000;
IO1DIR = 0×00000000;
FIO0DIR = 0×00000000;
FIO1DIR = 0×00000000;
FIO2DIR = 0×00000000;
FIO3DIR = 0×00000000;
FIO4DIR = 0×00000000;
FIO0MASK = 0×00000000;
FIO1MASK = 0×00000000;
FIO2MASK = 0×00000000;
FIO3MASK = 0×00000000;
FIO4MASK = 0×00000000;
return;
}
void ConfigurePLL ( void )
{
long MValue, NValue;
if ( PLLSTAT & (1 << 25) )
{
PLLCON = 1; /* Enable PLL, disconnected */
PLLFEED = 0xaa;
PLLFEED = 0×55;
}
PLLCON = 0; /* Disable PLL, disconnected */
PLLFEED = 0xaa;
PLLFEED = 0×55;
SCS |= 0×20; /* Enable main OSC */
while( !(SCS & 0×40) ); /* Wait until main OSC is usable */
CLKSRCSEL = 0×1; /* select main OSC, 12MHz, as the PLL clock source */
PLLCFG = PLL_MValue | (PLL_NValue << 16);
PLLFEED = 0xaa;
PLLFEED = 0×55;
PLLCON = 1; /* Enable PLL, disconnected */
PLLFEED = 0xaa;
PLLFEED = 0×55;
CCLKCFG = CCLKDivValue; /* Set clock divider */
#if USE_USB
USBCLKCFG = USBCLKDivValue; /* usbclk = 288 MHz/6 = 48 MHz */
#endif
while ( ((PLLSTAT & (1 << 26)) == 0) ); /* Check lock bit status */
MValue = PLLSTAT & 0×00007FFF;
NValue = (PLLSTAT & 0×00FF0000) >> 16;
while ((MValue != PLL_MValue) && ( NValue != PLL_NValue) );
PLLCON = 3; /* enable and connect */
PLLFEED = 0xaa;
PLLFEED = 0×55;
while ( ((PLLSTAT & (1 << 25)) == 0) ); /* Check connect bit status */
return;
}
void TargetResetInit(void)
{
/* This if-else statement detects if interrupt vectors located by the linker
command file are at memory location 0 or not. */
#pragma segment = “INTVEC”
if (( void * )0×00000000UL == __segment_begin( “INTVEC” ))
{
MEMMAP = 1; // normal flash mode
}
else
{
MEMMAP = 2 ; // user ram mode – Map lowest 64 bytes of the address space to
// bottom of internal RAM, moving exception vectors into place
}
#if USE_USB
PCONP |= 0×80000000; /* Turn On USB PCLK */
#endif
/* Configure PLL, switch from IRC to Main OSC */
ConfigurePLL();
/* Set system timers for each component */
#if (Fpclk / (Fcclk / 4)) == 1
PCLKSEL0 = 0×00000000; /* PCLK is 1/4 CCLK */
PCLKSEL1 = 0×00000000;
#endif
#if (Fpclk / (Fcclk / 4)) == 2
PCLKSEL0 = 0xAAAAAAAA; /* PCLK is 1/2 CCLK */
PCLKSEL1 = 0xAAAAAAAA;
#endif
#if (Fpclk / (Fcclk / 4)) == 4
PCLKSEL0 = 0×55555555; /* PCLK is the same as CCLK */
PCLKSEL1 = 0×55555555;
#endif
/* Set memory accelerater module*/
MAMCR = 0;
#if Fcclk < 20000000
MAMTIM = 1;
#else
#if Fcclk < 40000000
MAMTIM = 2;
#else
MAMTIM = 3;
#endif
#endif
MAMCR = 2;
GPIOResetInit();
init_VIC();
return;
}
IRQ.h:
/******************************************************************************
* irq.h: Interrupt related Header file for NXP LPC230x Family
* Microprocessors
*
* ******************************************************************************/
#ifndef __IRQ_H
#define __IRQ_H
#define I_Bit 0×80
#define F_Bit 0×40
#define SYS32Mode 0×1F
#define IRQ32Mode 0×12
#define FIQ32Mode 0×11
#define HIGHEST_PRIORITY 0×01
#define LOWEST_PRIORITY 0×0F
#define WDT_INT 0
#define SWI_INT 1
#define ARM_CORE0_INT 2
#define ARM_CORE1_INT 3
#define TIMER0_INT 4
#define TIMER1_INT 5
#define UART0_INT 6
#define UART1_INT 7
#define PWM0_1_INT 8
#define I2C0_INT 9
#define SPI0_INT 10 /* SPI and SSP0 share VIC slot */
#define SSP0_INT 10
#define SSP1_INT 11
#define PLL_INT 12
#define RTC_INT 13
#define EINT0_INT 14
#define EINT1_INT 15
#define EINT2_INT 16
#define EINT3_INT 17
#define ADC0_INT 18
#define I2C1_INT 19
#define BOD_INT 20
#define EMAC_INT 21
#define USB_INT 22
#define CAN_INT 23
#define MCI_INT 24
#define GPDMA_INT 25
#define TIMER2_INT 26
#define TIMER3_INT 27
#define UART2_INT 28
#define UART3_INT 29
#define I2C2_INT 30
#define I2S_INT 31
#define VIC_SIZE 32
#define VIC_BASE_ADDR ((unsigned int)&VICIRQStatus)
#define VECT_ADDR_INDEX 0×100
#define VECT_CNTL_INDEX 0×200
void init_VIC( void );
long install_irq( long IntNumber, void *HandlerAddr, long Priority );
#endif /* end __IRQ_H */
/******************************************************************************
** End Of File
******************************************************************************/
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
<iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}#include <iolpc2378.h>
#include “irq.h”
#include “config.h”
void delay()
{
unsigned int i,j;
for(i=0;i<0×3fff;i++)
for(j=0;j<0xff;j++);
}
int main (void)
{
unsigned int Fdiv;
TargetResetInit();
PINSEL0 = 0×00000050; /* RxD0 and TxD0 */
U0LCR = 0×83; /* 8 bits, no Parity, 1 Stop bit */
Fdiv = ( Fpclk / 16 ) / 19200 ; /*baud rate */
U0DLM = Fdiv / 256;
U0DLL = Fdiv % 256;
U0LCR = 0×03; /* DLAB = 0 */
U0FCR = 0×07; /* Enable and reset TX and RX FIFO. */
FIO3DIR = 0X008000FF;
while(1)
{
FIO3PIN = 0X000000ff;
delay();
FIO3PIN = 0X00000000;
delay();
}
}
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