CS1180 's Arduino driver

#define CS 2//cs1180 chip selection, low active

#define SDI3//cs1180 Data input

#define SDO4//cs1180 data output

#define SCLK5//cs1180 Clock

#define Drdy6//cs1180 data ready, low active

Write a Byte

void writespi_cs1180 (unsigned char DData)

{

unsigned char i;

Sclk=high;

Digitalwrite (Sclk,high);

for (i=8;i>0;i--)

{

sdi= (Bit) (DData & 0x80);

Digitalwrite (Sdi,highbyte (DData & 0x80));

ddata<<=1;

Sclk=low;

Digitalwrite (Sclk,low);

Delay5us ();

Delaymicroseconds (5);

Sclk=high;

Digitalwrite (Sclk,high);

Delay5us ();

Delaymicroseconds (5);

}

}

Read a Byte

unsigned char readspi_cs1180 (void)

{

unsigned char tempdata=0;

unsigned char i=0;

Sclk=high;

Digitalwrite (Sclk,high);

for (i=8;i>0;i--)

{

tempdata<<=1;

Sclk=low;

Digitalwrite (Sclk,low);

Delay5us ();

Delaymicroseconds (5);

TempData |=digitalread (SDO);

Sclk=high;

Digitalwrite (Sclk,high);

Delay5us ();

Delaymicroseconds (5);

}

return tempdata;

}

Initialize CS1180

void init_cs1180 ()

{

cs=0;

Digitalwrite (Cs,low);

writespi_cs1180 (0XFE); //send chip reset instruction

DELAY5MS ();

Delay (5);

writespi_cs1180 (0x50); //write register first address

writespi_cs1180 (0x02); //The number of write registers is 2+1=3

writespi_cs1180 (0x52);

writespi_cs1180 (0x06); //Gain 64

writespi_cs1180 (0x01); //normal use, configuration 01

writespi_cs1180 (0x24); //Bipolar

DELAY5MS ();

Delay (5);

while (Drdy);

while (Drdy);

while (Digitalread (Drdy) ==high);

while (Digitalread (Drdy) ==high);

Readspi_cs1180 (); //empty read once, do discard processing, because the first reading is not correct

DELAY5MS ();

Delay (5);

}

Read AD value

void getad_cs1180 ()

{

unsigned char ad[3];

while (Drdy);

while (Digitalread (Drdy) ==high);

writespi_cs1180 (0x01);

Delay5us ();

Delaymicroseconds (5);

Ad[0]=readspi_cs1180 ();

Ad[1]=readspi_cs1180 ();

Ad[2]=readspi_cs1180 ();

Ad[3]=pinswitch;

/*

Sendchar (0x0C);

Sendchar (0x55);

Sendchar (ad[0]); //high Byte

Sendchar (ad[1]); //middle Byte

Sendchar (ad[2]); //low Byte

Sendchar (ad[3]); //low Byte

Sendchar ((0x0c+0x55+ad[0]+ad[1]+ad[2]+ad[3]) & 0xff);

*/

Serial.println ((ad[0]<<16) + (ad[1]<<8) +ad[2]);

Serial.println (ad[1]);

Serial.println (ad[2]);

}

void Setup ()

{

Pinmode (Cs,output);

Pinmode (Drdy,input);

Pinmode (Sclk,output);

Pinmode (Sdi,output);

Pinmode (Sdo,input);

Init_cs1180 ();

Serial.begin (9600);

}

void Loop ()

{

Getad_cs1180 ();

}

This article is from the "Drag Mud crab" blog, please be sure to keep this source http://novelcrab.blog.51cto.com/10186204/1641493

CS1180 's Arduino driver