LPC1700CMSIS Standard Peripheral Firmware Library: C:/nxpdrv/LPC1700CMSIS/Core/CM3/DeviceSupport/NXP/LPC17xx/system_LPC17xx.c File Reference

LPC1700CMSIS

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C:/nxpdrv/LPC1700CMSIS/Core/CM3/DeviceSupport/NXP/LPC17xx/system_LPC17xx.c File Reference

CMSIS Cortex-M3 Device Peripheral Access Layer Source File for the NXP LPC17xx Device Series. More...

#include <stdint.h> #include "LPC17xx.h"

Go to the source code of this file.


Defines

#define CLOCK_SETUP   1
#define SCS_Val   0x00000020
#define CLKSRCSEL_Val   0x00000001
#define PLL0_SETUP   1
#define PLL0CFG_Val   0x00050063
#define PLL1_SETUP   1
#define PLL1CFG_Val   0x00000023
#define CCLKCFG_Val   0x00000003
#define USBCLKCFG_Val   0x00000000
#define PCLKSEL0_Val   0x00000000
#define PCLKSEL1_Val   0x00000000
#define PCONP_Val   0x042887DE
#define CLKOUTCFG_Val   0x00000000
#define FLASH_SETUP   1
#define FLASHCFG_Val   0x0000303A
#define CHECK_RANGE(val, min, max)   ((val < min) || (val > max))
#define CHECK_RSVD(val, mask)   (val & mask)
#define XTAL   (12000000UL)
#define OSC_CLK   ( XTAL)
#define RTC_CLK   ( 32000UL)
#define IRC_OSC   ( 4000000UL)
#define __M   (((PLL0CFG_Val ) & 0x7FFF) + 1)
#define __N   (((PLL0CFG_Val >> 16) & 0x00FF) + 1)
#define __FCCO(__F_IN)   ((2 * __M * __F_IN) / __N)
#define __CCLK_DIV   (((CCLKCFG_Val ) & 0x00FF) + 1)
#define __CORE_CLK   (__FCCO(OSC_CLK) / __CCLK_DIV)

Functions

void SystemCoreClockUpdate (void)
 Updates the SystemCoreClock with current core Clock retrieved from cpu registers.
void SystemInit (void)
 Setup the microcontroller system. Initialize the System.

Variables

uint32_t SystemCoreClock = __CORE_CLK

Detailed Description

CMSIS Cortex-M3 Device Peripheral Access Layer Source File for the NXP LPC17xx Device Series.

Version:
V1.03
Date:
07. October 2009
Note:
Copyright (C) 2009 ARM Limited. All rights reserved.
ARM Limited (ARM) is supplying this software for use with Cortex-M processor based microcontrollers. This file can be freely distributed within development tools that are supporting such ARM based processors.
THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.

Definition in file system_LPC17xx.c.

Define Documentation

#define __CCLK_DIV   (((CCLKCFG_Val ) & 0x00FF) + 1)

Definition at line 388 of file system_LPC17xx.c.

#define __CORE_CLK   (__FCCO(OSC_CLK) / __CCLK_DIV)

Definition at line 393 of file system_LPC17xx.c.

#define __FCCO ( __F_IN   )     ((2 * __M * __F_IN) / __N)

Definition at line 387 of file system_LPC17xx.c.

#define __M   (((PLL0CFG_Val ) & 0x7FFF) + 1)

Definition at line 385 of file system_LPC17xx.c.

#define __N   (((PLL0CFG_Val >> 16) & 0x00FF) + 1)

Definition at line 386 of file system_LPC17xx.c.

#define CCLKCFG_Val   0x00000003

Definition at line 290 of file system_LPC17xx.c.

#define CHECK_RANGE ( val,
min,
max   )     ((val < min) || (val > max))

Definition at line 321 of file system_LPC17xx.c.

#define CHECK_RSVD ( val,
mask   )     (val & mask)

Definition at line 322 of file system_LPC17xx.c.

#define CLKOUTCFG_Val   0x00000000

Definition at line 295 of file system_LPC17xx.c.

#define CLKSRCSEL_Val   0x00000001

Definition at line 285 of file system_LPC17xx.c.

#define CLOCK_SETUP   1

Definition at line 283 of file system_LPC17xx.c.

#define FLASH_SETUP   1

Definition at line 311 of file system_LPC17xx.c.

#define FLASHCFG_Val   0x0000303A

Definition at line 312 of file system_LPC17xx.c.

#define IRC_OSC   ( 4000000UL)

Definition at line 381 of file system_LPC17xx.c.

#define OSC_CLK   ( XTAL)

Definition at line 379 of file system_LPC17xx.c.

#define PCLKSEL0_Val   0x00000000

Definition at line 292 of file system_LPC17xx.c.

#define PCLKSEL1_Val   0x00000000

Definition at line 293 of file system_LPC17xx.c.

#define PCONP_Val   0x042887DE

Definition at line 294 of file system_LPC17xx.c.

#define PLL0_SETUP   1

Definition at line 286 of file system_LPC17xx.c.

#define PLL0CFG_Val   0x00050063

Definition at line 287 of file system_LPC17xx.c.

#define PLL1_SETUP   1

Definition at line 288 of file system_LPC17xx.c.

#define PLL1CFG_Val   0x00000023

Definition at line 289 of file system_LPC17xx.c.

#define RTC_CLK   ( 32000UL)

Definition at line 380 of file system_LPC17xx.c.

#define SCS_Val   0x00000020

Definition at line 284 of file system_LPC17xx.c.

#define USBCLKCFG_Val   0x00000000

Definition at line 291 of file system_LPC17xx.c.

#define XTAL   (12000000UL)

Definition at line 378 of file system_LPC17xx.c.

Function Documentation

void SystemCoreClockUpdate ( void   ) 

Updates the SystemCoreClock with current core Clock retrieved from cpu registers.

Update SystemCoreClock variable

Parameters:
none 
Returns:
none

Definition at line 419 of file system_LPC17xx.c.

void SystemInit ( void   ) 

Setup the microcontroller system. Initialize the System.

Setup the microcontroller system. Initialize the System and update the SystemCoreClock variable.

Initialize the system

Parameters:
none 
Returns:
none

Definition at line 503 of file system_LPC17xx.c.

Variable Documentation

uint32_t SystemCoreClock = __CORE_CLK

System Clock Frequency (Core Clock)

Definition at line 413 of file system_LPC17xx.c.

Generated on Mon Feb 8 10:01:38 2010 for LPC1700CMSIS Standard Peripheral Firmware Library by  doxygen 1.5.9
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