00001 /*! \file membus.h \brief Software-driven Memory Bus for ARMmini-LPC210x. */ 00002 //***************************************************************************** 00003 // 00004 // File Name : 'membus.h' 00005 // Title : Software-driven Memory Bus for ARMmini-LPC210x 00006 // Author : Pascal Stang - Copyright (C) 2004 00007 // Created : 2004.05.05 00008 // Revised : 2004.07.12 00009 // Version : 0.1 00010 // Target MCU : ARM processors 00011 // Editor Tabs : 4 00012 // 00013 // NOTE: This code is currently below version 1.0, and therefore is considered 00014 // to be lacking in some functionality or documentation, or may not be fully 00015 // tested. Nonetheless, you can expect most functions to work. 00016 // 00017 // This code is distributed under the GNU Public License 00018 // which can be found at http://www.gnu.org/licenses/gpl.txt 00019 // 00020 //***************************************************************************** 00021 00022 #ifndef MEMBUS_H 00023 #define MEMBUS_H 00024 00025 #include "global.h" 00026 00027 #define MEMBUS_IO 0xFFFF0000 00028 #define MEMBUS_LATCH 0x00000800 00029 #define MEMBUS_nRD 0x00001000 00030 #define MEMBUS_nWR 0x00002000 00031 #define P015 0x00008000 00032 00033 //#define MEMBUS_DELAY 00034 //#define MEMBUS_DELAY asm volatile ("nop\r\n") 00035 //#define MEMBUS_DELAY asm volatile ("nop\r\n nop\r\n") 00036 //#define MEMBUS_DELAY asm volatile ("nop\r\n nop\r\n nop\r\n nop\r\n") 00037 #define MEMBUS_DELAY asm volatile ("nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n") 00038 //#define MEMBUS_DELAY asm volatile ("nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n") 00039 //#define MEMBUS_DELAY asm volatile ("nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n nop\r\n") 00040 //#define MEMBUS_DELAY delay(1000) 00041 00042 void membusInit(void); 00043 uint16_t membusRead(uint16_t addr); 00044 void membusWrite(uint16_t addr, uint16_t data); 00045 00046 #endif
1.4.2