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最新的93C46/93c06/93c46/93c56/93c66/93c86的驱动程序(C51)
/*———————————————————— 〖说明〗SPI总线驱动程序 包括的普通封装标准模式,特殊封装标准模式 默认11.0592Mhz的晶振。 〖文件〗93CXX.C ﹫ 〖作者〗董石权(司马东飞) dongshiquan@163.com QQ:52455690 http://www.mcuzb.com/ 〖修改〗修改建议请到论坛公布http://www.mcuzb.com 〖版本〗V3.00A Build 0803 〖公告〗请各位同僚尊重使用权!!!!!!!!!!! —————————————————————*/ /*通用93C06-93C86系列使用说明 93C06=93C4693c56=93c6693c76=93C86 dipx 可以自行定义*/ #include "reg51.h" #include "intrins.h" /*----------------------------------------------------- SPI93cXX系列时序函数调用(普通封装) 调用方式:自行定义﹫ 函数说明:私有函数,封装各接口定义 -----------------------------------------------------*/ #define di_93 dip3 #define sk_93 dip2 #define cs_93 dip1 #define do_93 dip4 #define gnd_93 dip5 #define org_93 dip6 sbit cs_93=P1^0; sbit sk_93=P1^1; sbit di_93=P1^2; sbit do_93=P1^3; sbit org_93=P0^4; /*----------------------------------------------------- SPI93cXX系列时序函数调用(普通封装) 调用方式:void high46(void) ---高8位函数调用 void low46(void) ---低8位函数调用﹫ 函数说明:私有函数,SPI专用93C46普通封装驱动程序 -----------------------------------------------------*/ void high46(void) { di_93=1; sk_93=1; _nop_(); sk_93=0;_nop_(); } void low46(void) { di_93=0; sk_93=1;_nop_(); sk_93=0;_nop_(); } void wd46(unsigned char dd) { unsigned char i; for (i=0;i<8;i++) { if (dd>=0x80) high46(); else low46(); dd=dd<<1; } } unsigned char rd46(void) { unsigned char i,dd; do_93=1; for (i=0;i<8;i++) { dd<<=1; sk_93=1;_nop_(); sk_93=0;_nop_(); if (do_93) dd|=1; } return(dd); } /*----------------------------------------------------- SPI93cXX系列时序函数调用(特殊封装) 调用方式:自行定义﹫ 函数说明:私有函数,特殊封装各接口定义 -----------------------------------------------------*/ #define di_93a dip5 #define sk_93a dip4 #define cs_93a dip3 #define do_93a dip6 #define gnd_93a dip7 #define vcc_93a out_vcc(2) sbit cs_93a=P1^0; sbit sk_93a=P1^1; sbit di_93a=P1^2; sbit do_93a=P1^3; /*----------------------------------------------------- SPI93cXX系列时序函数调用(特殊封装) 调用方式:void high46a(void) ---高8位函数调用 void low46a(void) ---低8位函数调用﹫ 函数说明:私有函数,SPI专用93C46特殊封装驱动程序 -----------------------------------------------------*/ void high46a(void) { di_93a=1; sk_93a=1;_nop_(); sk_93a=0;_nop_(); } void low46a(void) { di_93a=0; sk_93a=1;_nop_(); sk_93a=0; _nop_(); } void wd46a(unsigned char dd) { unsigned char i; for (i=0;i<8;i++) { if (dd>=0x80) high46a(); else low46a(); dd=dd<<1; } } unsigned char rd46a(void) { unsigned char i,dd; do_93a=1; for (i=0;i<8;i++) { dd<<=1; sk_93a=1;_nop_(); sk_93a=0;_nop_(); if (do_93a) dd|=1; } return(dd); } /*----------------------------------------------------- SPI93C46系列函数调用(举例) 调用方式:bit write93c56_word(unsigned int address,unsigned int dat) ﹫ 函数说明:私有函数,SPI专用 -----------------------------------------------------*/ void ewen46(void) { _nop_(); cs_93=1; high46(); wd46(0x30); cs_93=0; } unsigned int read93C46_word(unsigned char address) { unsigned int dat; unsigned char dat0,dat1; gnd_93a=0; gnd_93=0; cs_93=sk_93=0; org_93=1; cs_93=1;_nop_(); address=address>>1; address=address|0x80; address=address|0x80; high46(); wd46(address); dat1=rd46(); dat0=rd46(); cs_93=0; dat=dat1*256+dat0; return(dat); } bit write93C46_word(unsigned char address,unsigned int dat) { unsigned char e,temp=address; e=0; while (e<3) { gnd_93a=0; gnd_93=0; cs_93=sk_93=0; org_93=1; cs_93=1; ewen46(); _nop_(); cs_93=1; _nop_(); high46(); address|=0x80; address>>=1;//?? address|=0x40; wd46(address); wd46(dat/256); wd46(dat%256); cs_93=0; _nop_(); cs_93=1; time=0;do_93=1; while (1) { if (do_93==1) break; if (time>20) break; } cs_93=0; if (read93C46_word(temp)==dat) { return(0); } e++; } return(1); } /*----------------------------------------------------- SPI93c57系列函数调用(举例) 调用方式:bit write93c57_word(unsigned int address,unsigned int dat) ﹫ 函数说明:私有函数,SPI专用 -----------------------------------------------------*/ void ewen57(void) { _nop_(); cs_93=1; dip7=0; high46(); low46(); wd46(0x60); cs_93=0; } unsigned int read93c57_word(unsigned int address) { unsigned int dat; unsigned char dat0,dat1; gnd_93=0; cs_93=sk_93=0; org_93=1; cs_93=1; address=address>>1; high46(); high46(); wd46(address); dat1=rd46(); dat0=rd46(); cs_93=0; dat=dat1*256+dat0; return(dat); } bit write93c57_word(unsigned int address,unsigned int dat) { unsigned char e; unsigned int temp=address; e=0; while (e<3) { gnd_93=0; cs_93=sk_93=0; org_93=1; cs_93=1; ewen57(); cs_93=1; _nop_(); high46(); low46(); address>>=1; address|=0x80; wd46(address); wd46(dat/256); wd46(dat%256); cs_93=0; _nop_(); cs_93=1; time=0; do_93=1; while (1) { if (do_93==1) break; if (time>20) break; } cs_93=0; if (read93c57_word(temp)==dat) { return(0); } e++; } return(1); } /*----------------------------------------------------- SPI93c56系列函数调用(举例) 调用方式:bit write93c56_word(unsigned int address,unsigned int dat) ﹫ 函数说明:私有函数,SPI专用 -----------------------------------------------------*/ void ewen56(void) { _nop_(); cs_93=1; high46(); low46(); low46(); wd46(0xc0); cs_93=0; } unsigned int read93c56_word(unsigned char address) { unsigned int dat; unsigned char dat0,dat1; gnd_93=0; cs_93=sk_93=0; org_93=1; cs_93=1; address=address>>1; high46(); high46(); low46(); wd46(address); dat1=rd46(); dat0=rd46(); cs_93=0; dat=dat1*256+dat0; return(dat); } bit write93c56_word(unsigned char address,unsigned int dat) { unsigned char e; unsigned int temp=address; e=0; while (e<3) { gnd_93=0; cs_93=sk_93=0; org_93=1; cs_93=1; ewen56(); _nop_(); cs_93=1; _nop_(); high46(); low46(); high46(); address>>=1; wd46(address); wd46(dat/256); wd46(dat%256); cs_93=0; _nop_(); cs_93=1; TH0=0; time=0; do_93=1; while (1) { if (do_93==1) break; if (time) break; } cs_93=0; if (read93c56_word(temp)==dat) { return(0); } e++; } return(1); } /*----------------------------------------------------- SPI93c76与SPI93C86系列函数调用(举例) 调用方式:bit write93c76_word(unsigned int address,unsigned int dat) ﹫ 函数说明:私有函数,SPI专用 -----------------------------------------------------*/ void ewen76(void) { _nop_(); cs_93=1; dip7=1; high46(); low46(); low46(); high46(); high46(); wd46(0xff); cs_93=0; } unsigned int read93c76_word(unsigned int address) { unsigned char dat0,dat1; gnd_93=0; cs_93=sk_93=0; org_93=1; cs_93=1; address>>=1; high46(); high46(); low46(); if((address&0x200)==0x200) high46(); else low46(); if ((address&0x100)==0x100) high46(); else low46(); wd46(address); dat1=rd46(); dat0=rd46(); cs_93=0; return(dat1*256|dat0); } bit write93c76_word(unsigned int address,unsigned int dat) { unsigned char e; unsigned int temp=address; e=0; address>>=1; while (e<3) { gnd_93=0; cs_93=sk_93=0; org_93=1; cs_93=1; ewen76(); _nop_(); cs_93=1; high46(); low46(); high46(); if((address&0x200)==0x200) high46(); else low46(); if ((address&0x100)==0x100) high46(); else low46(); wd46(address); wd46(dat/256); wd46(dat%256); cs_93=0;_nop_();cs_93=1; time=0;do_93=1; while (1) { if (do_93==1) break; if (time>10) break; } cs_93=0; e++; } return(1); } /*----------------------------------------------------- 主函数调用(举例) 调用方式:main() ﹫ 函数说明:私有函数,SPI专用 -----------------------------------------------------*/ main() { bit b; unsigned int i; unsigned int j[32],k; for(i=0;i<32;i++) j[i]=read93c56_word(i); for(i=0;i<32;i++) write93c56_word(i,0x0909); i=0; b=write93c56_word(i,0x0909); j[i]=read93c56_word(i); i=1; b=write93c56_word(i,0x1111); j[i]=read93c56_word(i); i=2; b=write93c56_word(i,0x2222); j[i]=read93c56_word(i); }
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