EEprom串行存储器驱动

/**************************************************** 2009-3-9 11:38:44 auto create! Ver 1.0 mcuCode2.0 help you! tony.hehui@163.com 24C01-24C16 (1Kb-16Kb)Addr_ByteNum==1 24C32-24M04 (32Kb-4Mb)Addr_ByteNum==2 you neednot edit this file(eeprom.c) AddrDev:Address of Dev.如24C08占用bit2,bit1 而24C16占用bit3,bit2,bit1而您用两个24C08, 那么地址就决定您的硬件 Addr:EEprom的地址，如果<24C16(16K)则为1Byte,反之为2Byte 返回:EEprom_bool为0为错误，否则成功。 ****************************************************/ #define Eeprom_c #include "Eeprom.h" static void _Eeprom_1us(unsigned char len) { // ToDo:Add your code here while(len!=0) { defDelay1us; len--; } } static void _Eeprom_Send8Bit(unsigned char Data) { // ToDo:Add your code here unsigned char bitnum; _SDA_Out; for(bitnum=8;bitnum!=0;bitnum--) { if(Data<0x80)//0 {_SDA_0;} else {_SDA_1;} _SCK_1; _Eeprom_1us(defDelayNus); _SCK_0; Data<<=1; _Eeprom_1us(defDelayNus); } //get ack _IIcAck; } static unsigned char _Eeprom_Read8Bit(void) { // ToDo:Add your code here unsigned char bitnum,ret; _SDA_IN; for(bitnum=8;bitnum!=0;bitnum--) { _SCK_1; ret<<=1; _Eeprom_1us(defDelayNus); if(_SDA!=0) ret++; _SCK_0; _Eeprom_1us(defDelayNus); } return ret; } unsigned char fn_Eeprom_ReadB(unsigned char AddrDev,EEpromAddr Addr) { // ToDo:Add your code here unsigned char ret; _IIcStart; _Eeprom_Send8Bit(0xA0+AddrDev); if(bAckErr)return 0; #if (Addr_ByteNum==2) _Eeprom_Send8Bit(Addr>>8);//High Addr if(bAckErr)return 0; _Eeprom_Send8Bit((unsigned char)Addr); #else _Eeprom_Send8Bit(Addr); #endif if(bAckErr)return 0; _IIcStart; _Eeprom_Send8Bit(0xA1+AddrDev); if(bAckErr)return 0; ret=_Eeprom_Read8Bit(); _IIcStop; return ret; } EEprom_bool fn_Eeprom_WriteB(unsigned char AddrDev,EEpromAddr Addr,unsigned char Data) { // ToDo:Add your code here _IIcStart; _Eeprom_Send8Bit(0xA0+AddrDev); if(bAckErr)return 0; #if (Addr_ByteNum==2) _Eeprom_Send8Bit(Addr>>8);//High Addr if(bAckErr)return 0; _Eeprom_Send8Bit((unsigned char)Addr); #else _Eeprom_Send8Bit(Addr); #endif if(bAckErr)return 0; _Eeprom_Send8Bit(Data); _IIcStop; if(bAckErr)return 0; return 1; } EEprom_bool fn_Eeprom_Read(unsigned char *pbuf,unsigned char num,unsigned char AddrDev,EEpromAddr Addr) { // ToDo:Add your code here _IIcStart; _Eeprom_Send8Bit(0xA0+AddrDev); if(bAckErr)return 0; #if (Addr_ByteNum==2) _Eeprom_Send8Bit(Addr>>8);//High Addr if(bAckErr)return 0; _Eeprom_Send8Bit((unsigned char)Addr); #else _Eeprom_Send8Bit(Addr); #endif if(bAckErr)return 0; _IIcStart; _Eeprom_Send8Bit(0xA1+AddrDev); if(bAckErr)return 0; for(num--;num!=0;num--) { *pbuf=_Eeprom_Read8Bit(); _IIcAck;if(bAckErr)return 0; pbuf++; } *pbuf=_Eeprom_Read8Bit(); _IIcStop; return 1; } EEprom_bool fn_Eeprom_Write(unsigned char *pbuf,unsigned char num,unsigned char AddrDev,EEpromAddr Addr) { // ToDo:Add your code here _IIcStart; _Eeprom_Send8Bit(0xA0+AddrDev); if(bAckErr)return 0; #if (Addr_ByteNum==2) _Eeprom_Send8Bit(Addr>>8);//High Addr if(bAckErr)return 0; _Eeprom_Send8Bit((unsigned char)Addr); #else _Eeprom_Send8Bit(Addr); #endif if(bAckErr)return 0; while(num!=0) { _Eeprom_Send8Bit(*pbuf); pbuf++; num--; if(bAckErr)break; } _IIcStop; if(bAckErr)return 0; else return 1; }