lpc_syscontrol.h

深圳优龙公司LPC2148开发板（与iar公司开发板基本相同）的原理图和配套样例程序

#ifndef __LPC_SYSCONTROL_H
#define __LPC_SYSCONTROL_H

/*************************************************************************
 *
 *    Used with ICCARM and AARM.
 *
 *    (c) Copyright IAR Systems 2003
 *
 *    File name   : LPC_SysControl.h
 *    Description :
 *
 *    History :
 *    1. Data:  August 17, 2004
 *  	 Author: Shawn Zhang
 *  	 Description: Create the basic function
 *
 *    2. Data   	 : Oct 7, 2004
 *  	 Author 	 : Stanimir Bonev
 *  	 Description : Modify some function and interface
 *
 *    $Revision: 1.1 $
 **************************************************************************/

#include <includes.h>

/* Fosc range: 10MHz ~ 25MHz */
#define Fosc_MIN			10000000L
#define Fosc_MAX			25000000L

/* Fcclk range: 10MHz ~ MCU allowed frequency */
#define Fcclk_MIN		10000000L
#define Fcclk_MAX		60000000L

/* Fcco range: 156MHz ~ 320MHz */
#define Fcco_MIN			156000000L
#define Fcco_MAX			320000000L

#define PLLFEED_DATA1   	0xAA
#define PLLFEED_DATA2   	0x55

/* PLL PLLCON register bit descriptions */
#define PLLCON_ENABLE_BIT   0
#define PLLCON_CONNECT_BIT  1

/* PLL PLLSTAT register bit descriptions */
#define PLLSTAT_ENABLE_BIT  8
#define PLLSTAT_CONNECT_BIT 9
#define PLLSTAT_LOCK_BIT	10

/* PM Peripheral Type */
#define PC_TIMER0		0x2
#define PC_TIMER1		0x4
#define PC_UART0		0x8
#define PC_UART1		0x10
#define PC_PWM0			0x20
#define PC_I2C			0x80
#define PC_SPI0			0x100
#define PC_RTC			0x200

// External interrupt
typedef enum
{
	EXTINT0		= 0 ,
	EXTINT1 ,
	EXTINT2
} LPC_SysControl_ExtInt_Chanel_t;

// Memory Mapping Control Mode
typedef enum
{
	BOOT_LOADER		= 0 ,
	USER_FLASH ,
	USER_RAM
} LPC_SysControl_RemapMode_t;

// Memory Accelerator Module Operating Mode
typedef enum
{
	VPBDIV4							= 0 ,		// Pclk = 1/4 Pcclk
	VPBDIV1 ,			// Pclk = Pcclk
	VPBDIV2			// Pclk = 1/2 Pcclk
} LPC_SysControl_VPBDiv_t;

// Memory Accelerator Module Operating Mode
typedef enum
{
	MAM_PARTIALLY	= 1 ,
	MAM_FULL
} LPC_SysControl_MAMMode_t;

// Power Manager Mode
typedef enum
{
	PM_STANDARD		= 0 ,
	PM_IDLE ,
	PM_POWERDOWN
} LPC_SysControl_PMMode_t;

// External interrupt trigger type
typedef enum
{
	LEVEL_LOW		= 0 ,
	LEVEL_HIGH ,
	EDGE_RISING ,
	EDGE_FALLING
} LPC_SysControl_EXTINTTriggerType_t;

// MAM fetch cycles
// SysClock<20MHz: MAMTIM can be 001
// 20MHz<SysClock<40MHz: suggest 2 cycle
// 40MHz<SysClock: suggest 3 cycle
typedef enum
{
	MAMCycle1		= 1 ,
	MAMCycle2 ,
	MAMCycle3 ,
	MAMCycle4 ,
	MAMCycle5 ,
	MAMCycle6 ,
	MAMCycle7
} LPC_SysControl_MAMCycle_t;

typedef struct
{
	LPC_SysControl_MAMMode_t Mode;
	LPC_SysControl_MAMCycle_t Cycle;
} LPC_SysControl_MAMConfig_t;

typedef struct
{
	unsigned long Fosc;		// Crystal Oscillator Frequency
	unsigned long Fcclk;		// PLL output frequency (also processor clock frequency)
	unsigned long Fpclk;		// Peripheral frequency

	LPC_SysControl_RemapMode_t RemapMode;
	LPC_SysControl_VPBDiv_t VPBDivider;

	bool MAMEnable;
	LPC_SysControl_MAMConfig_t MAMConfig;
} LPC_Syscontrol_Config_t;

// Declare API functions
int SYS_Init( unsigned long Fosc , unsigned long Fcclk , LPC_SysControl_VPBDiv_t VPBDivider ,
	LPC_SysControl_RemapMode_t RemapMode , unsigned long PortDir0 , unsigned long Port0 , unsigned long PortDir1 ,
	unsigned long Port1 );
unsigned int SYS_GetFpclk( void );

int PM_SetMode( LPC_SysControl_PMMode_t Mode );
int PM_OpenPeripheral( unsigned int DevType );
int PM_ClosePeripheral( unsigned int DevType );
int EXTINT_Init( LPC_SysControl_ExtInt_Chanel_t ExtIntNum , bool WakeupEnable );

#endif //__LPC_SYSCONTROL_H