{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.xiaopingtou.cn/data/attach/logo/logo.png', '推荐 carryon 的问题《ld3320用软件模拟spi，是不是通讯不成功呢？应该怎么搞呢，没头绪，用的是51单片机。》','https://www.xiaopingtou.net/q-33818.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
//请问是什么原因？请各路大神提供指点，小弟将感激不尽！
//我只改了io口；sbit SCS=P2^3; //芯片片选信号CSsbit SDCK=P2^4; //SPI 时钟信号P2sbit SDI=P2^5; //SPI 数据输入P0sbit SDO=P2^6; //SPI 数据输出P1sbit SPIS=P2^1; //SPI 模式设置：低有效。 wrsbit RSTB=P2^2; //RST
//这是我的读写程序，这也是芯片资料提供的没有改过；void LD_WriteReg(unsigned char address, unsigned char dataout) { unsigned char i = 0; unsigned char command=0x04; SPIS =0; SCS = 0; DELAY_NOP;
//write command for (i=0;i < 8; i++) { if ((command & 0x80) == 0x80) SDI = 1; else SDI = 0;
DELAY_NOP; SDCK = 0; command = (command << 1); DELAY_NOP; SDCK = 1; } //write address for (i=0;i < 8; i++) { if ((address & 0x80) == 0x80) SDI = 1; else SDI = 0; DELAY_NOP; SDCK = 0; address = (address << 1); DELAY_NOP; SDCK = 1; } //write data for (i=0;i < 8; i++) { if ((dataout & 0x80) == 0x80) SDI = 1; else SDI = 0; DELAY_NOP; SDCK = 0; dataout = (dataout << 1); DELAY_NOP; SDCK = 1; } DELAY_NOP; SCS = 1; }
unsigned char LD_ReadReg(unsigned char address) { unsigned char i = 0; unsigned char datain =0; unsigned char temp = 0; unsigned char command=0x05; SPIS =0; SCS = 0; DELAY_NOP;
//write command for (i=0;i < 8; i++) { if ((command & 0x80) == 0x80) SDI = 1; else SDI = 0; DELAY_NOP; SDCK = 0; command = (command << 1); DELAY_NOP; SDCK = 1; }
//write address for (i=0;i < 8; i++) { if ((address & 0x80) == 0x80) SDI = 1; else SDI = 0; DELAY_NOP; SDCK = 0; address = (address << 1); DELAY_NOP; SDCK = 1; } DELAY_NOP;
//Read data for (i=0;i < 8; i++) { datain = (datain << 1); temp = SDO; DELAY_NOP; SDCK = 0; if (temp == 1) datain |= 0x01; DELAY_NOP; SDCK = 1; }
DELAY_NOP; SCS = 1; return datain; }
//我只改了io口；sbit SCS=P2^3; //芯片片选信号CSsbit SDCK=P2^4; //SPI 时钟信号P2sbit SDI=P2^5; //SPI 数据输入P0sbit SDO=P2^6; //SPI 数据输出P1sbit SPIS=P2^1; //SPI 模式设置：低有效。 wrsbit RSTB=P2^2; //RST
//这是我的读写程序，这也是芯片资料提供的没有改过；void LD_WriteReg(unsigned char address, unsigned char dataout) { unsigned char i = 0; unsigned char command=0x04; SPIS =0; SCS = 0; DELAY_NOP;
//write command for (i=0;i < 8; i++) { if ((command & 0x80) == 0x80) SDI = 1; else SDI = 0;
DELAY_NOP; SDCK = 0; command = (command << 1); DELAY_NOP; SDCK = 1; } //write address for (i=0;i < 8; i++) { if ((address & 0x80) == 0x80) SDI = 1; else SDI = 0; DELAY_NOP; SDCK = 0; address = (address << 1); DELAY_NOP; SDCK = 1; } //write data for (i=0;i < 8; i++) { if ((dataout & 0x80) == 0x80) SDI = 1; else SDI = 0; DELAY_NOP; SDCK = 0; dataout = (dataout << 1); DELAY_NOP; SDCK = 1; } DELAY_NOP; SCS = 1; }
unsigned char LD_ReadReg(unsigned char address) { unsigned char i = 0; unsigned char datain =0; unsigned char temp = 0; unsigned char command=0x05; SPIS =0; SCS = 0; DELAY_NOP;
//write command for (i=0;i < 8; i++) { if ((command & 0x80) == 0x80) SDI = 1; else SDI = 0; DELAY_NOP; SDCK = 0; command = (command << 1); DELAY_NOP; SDCK = 1; }
//write address for (i=0;i < 8; i++) { if ((address & 0x80) == 0x80) SDI = 1; else SDI = 0; DELAY_NOP; SDCK = 0; address = (address << 1); DELAY_NOP; SDCK = 1; } DELAY_NOP;
//Read data for (i=0;i < 8; i++) { datain = (datain << 1); temp = SDO; DELAY_NOP; SDCK = 0; if (temp == 1) datain |= 0x01; DELAY_NOP; SDCK = 1; }
DELAY_NOP; SCS = 1; return datain; }
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语音模块程序.docx
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