ads1255.c

这是本人已经完全调试通过的用C8051F020驱动的ADS1255程序,有C和汇编混编的

/////////////////////////////////////
//  Generated Initialization File  //
/////////////////////////////////////

#include "C8051F060.h"
#include "model.h"
unsigned char data FLAG_SAMPLE;
unsigned char data COMOK,BUF;
unsigned int data i;
unsigned char data *combuf = 0x20;
// Peripheral specific initialization functions,
// Called from the Init_Device() function

void EMI_Init()
{
    SFRPAGE   = EMI0_PAGE;
    EMI0CF    = 0x37;     // EMIF 在P4-P7。非复用方式
                          // 带块选择的分片方式。寻址低于4K 边界的地址时访问片内存储器，寻址
						  // 高于4K 边界的地址时访问片外存储器。8 位片外MOVX 操作使用EMI0CN
                          // 的内容作为地址的高字节。
                           //11：ALE 高和ALE 低脉冲宽度 = 4 个SYSCLK 周期。
}

void Port_IO_Init()
{
    // P0.0  -  TX0 (UART0), Push-Pull,  Digital
    // P0.1  -  RX0 (UART0), Open-Drain, Digital
    // P0.2  -  SDA (SMBus), Open-Drain, Digital
    // P0.3  -  SCL (SMBus), Open-Drain, Digital
    // P0.4  -  TX1 (UART1), Open-Drain, Digital
    // P0.5  -  RX1 (UART1), Open-Drain, Digital
    // P0.6  -  Unassigned,  Open-Drain, Digital
    // P0.7  -  Unassigned,  Open-Drain, Digital

    // P1.0  -  Unassigned,  Open-Drain, Digital
    // P1.1  -  Unassigned,  Open-Drain, Digital
    // P1.2  -  Unassigned,  Open-Drain, Digital
    // P1.3  -  Unassigned,  Open-Drain, Digital
    // P1.4  -  Unassigned,  Open-Drain, Digital
    // P1.5  -  Unassigned,  Open-Drain, Digital
    // P1.6  -  Unassigned,  Open-Drain, Digital
    // P1.7  -  Unassigned,  Open-Drain, Digital

    // P2.0  -  Unassigned,  Open-Drain, Digital
    // P2.1  -  Unassigned,  Open-Drain, Digital
    // P2.2  -  Unassigned,  Open-Drain, Digital
    // P2.3  -  Unassigned,  Open-Drain, Digital
    // P2.4  -  Unassigned,  Open-Drain, Digital
    // P2.5  -  Unassigned,  Open-Drain, Digital
    // P2.6  -  Unassigned,  Open-Drain, Digital
    // P2.7  -  Unassigned,  Open-Drain, Digital

    // P3.0  -  Unassigned,  Open-Drain, Digital
    // P3.1  -  Unassigned,  Open-Drain, Digital
    // P3.2  -  Unassigned,  Open-Drain, Digital
    // P3.3  -  Unassigned,  Open-Drain, Digital
    // P3.4  -  Unassigned,  Open-Drain, Digital
    // P3.5  -  Unassigned,  Open-Drain, Digital
    // P3.6  -  Unassigned,  Open-Drain, Digital
    // P3.7  -  Unassigned,  Open-Drain, Digital

    SFRPAGE   = CONFIG_PAGE;
    P0MDOUT   = 0x01;
    XBR0      = 0x05;
    XBR2      = 0x44;
}


void Reset_Sources_Init()
{   EA=0;
    WDTCN     = 0xDE;
    WDTCN     = 0xAD;
	EA=1;
}

void Oscillator_Init()
{
    int i = 0;
    SFRPAGE   = CONFIG_PAGE;
    OSCXCN    = 0x67;
    for (i = 0; i < 5000; i++);  // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);
    CLKSEL    = 0x01; 
	
}

void Interrupts_Init()
{
    IE        = 0x90;
    
}
// Initialization function for device,
// Call Init_Device() from your main program
void Init_Device(void)
{

    Oscillator_Init(); 
	EMI_Init();
    Reset_Sources_Init();
	Port_IO_Init();	
	Interrupts_Init();
    UART_Init(); 
    
}

void xiaozheng()
{
     BUF=0xf1;
	 WRADS1255C();
	 for(i=0;i<4000;i++){;}
}


void main()
{
    unsigned char data cmd,cmd2;
	WDTCN     = 0xDE;
    WDTCN     = 0xAD; 
  
	SP=0x30;
	Init_Device();
	INITADS();
  
    LOAD();

	while(1)
	{
	
	if(COMOK == 0x01)
		{   
			ES0 = 0;
			cmd = *(combuf+3);			
			switch(cmd)
			{
			case  0:  //采样
				
				PUCLEAR(); 
				SAMPLE();			
				TXDPUXIAN();
			    COMOK=0; 
				break;
			case  1:   //谱线清0
				PUCLEAR(); 
				
				break;
			case  2:  //SFR设置 1个命令字
				//WR1CMD(*(combuf+4));
				break;
			case  3:   // write to command  port
				cmd2 = *(combuf+4) & 0xf0;
				cmd2 = cmd2 >> 4 ;

				//WR2CMD(cmd2 | 0x50, *(combuf+4) & 0x0F);
				break;
			case  4:   //read from command port
				cmd2 = *(combuf+4) & 0xf0;
				cmd2 = cmd2 >> 4 ;
				//WR2CMD(cmd2 | 0x10, *(combuf+4) & 0x0f);
				break;
			case  5:
			    xiaozheng();
                COMOK=0; 
				break;
			}

			COMOK = 0x00;
			ES0 = 1;
		}	
	}
}