一、SDRAM(HY57V561620F)连线分析1、S3C2440有27根地址线ADDR[26:0],8根片选信号ngcs0-ngcs7,对应bank0-bank7,当访问bankx的地址空间,..
一、SDRAM(HY57V561620F)连线分析1、S3C2440有27根地址线ADDR[26:0],8根片选信号ngcs0-ngcs7,对应bank0-bank7,当访问bankx的地址空间,..
//=============================================================================//FileName:2440addr.h
voidWrite_byte_eeprom(unsignedshortaddress,unsignedchardata){while(EECR(1EEWE));//等待EEWE变为0EEAR=addr
includedefineBITBAND(addr,bitnum)((addr0xF0000000)+0x2000000+((addr0xFFFFF)5)+(bitnum2))defineMEM_AD