global.h

来自「lcd interface code for lpc214x series mi」· C头文件 代码 · 共 69 行

 /*! \file global.h \brief ARMlib project global include. */
 //*****************************************************************************
 //
 // File Name    : 'global.h'
 // Title        : ARM project global include 
 // Author       : Pascal Stang
 // Created      : 7/12/2001
 // Revised      : 4/29/2004
 // Version      : 1.1
 // Target MCU   : ARM
 // Editor Tabs  : 4
 //
 //  Description : This include file is designed to contain the specific 
 //                  configuration for this project.
 //
 // This code is distributed under the GNU Public License
 //      which can be found at http://www.gnu.org/licenses/gpl.txt
 //
 //*****************************************************************************
 
 #ifndef GLOBAL_H
 #define GLOBAL_H
 
 // global ARMLIB defines
 #include "armlibdefs.h"
 // global ARMLIB types definitions
 #include "armlibtypes.h"
 
 // project/system dependent defines
 
 // declare functions and values from crt0.S & the linker control file
 //extern void reset(void);
 //extern void exit(void);
 //extern void abort(void);
 // maybe add interrupt vector addresses
 
 // PLL setup values are computed within the LPC include file
 // It relies upon the following defines
 #define FOSC                (14745000)      // Master Oscillator Freq.
 #define PLL_MUL             (4)             // PLL Multiplier
 //#define CCLK              (FOSC*PLL_MUL)  // CPU Clock Freq.
 
 // Pheripheral Bus Speed Divider
 #define PBSD                2               // MUST BE 1, 2, or 4
 #define PCLK                (CCLK / PBSD)   // Pheripheal Bus Clock Freq.
 
 // Do some value range testing
 #if ((FOSC < 10000000) || (FOSC > 25000000))
 #error Fosc out of range (10MHz-25MHz)
 #error correct and recompile
 #endif
 
 #if ((CCLK < 10000000) || (CCLK > 60000000))
 //#error cclk out of range (10MHz-60MHz)
 //#error correct PLL_MUL and recompile
 #endif
 
 //#if ((FCCO < 150000000) || (FCCO > 320000000))
 //#error Fcco out of range (156MHz-320MHz)
 //#error internal algorithm error
 //#endif
 
 #if ((PBSD != 1) && (PBSD != 2) && (PBSD != 4))
 #error Pheripheal Bus Speed Divider (PBSD) illegal value (1, 2, or 4)
 #endif
 
 #endif