33 lines
675 B
C
33 lines
675 B
C
#include <bcm2835.h>
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#include <stdio.h>
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#include <unistd.h>
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int main(int argc, char **argv)
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{
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char Buf[]={0};
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unsigned char i;
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if (!bcm2835_init())return 1;
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bcm2835_i2c_begin();
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bcm2835_i2c_setSlaveAddress(0x48);
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bcm2835_i2c_set_baudrate(10000);
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printf("start..........\n");
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while(1)
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{
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for(i = 0;i < 4;i++)
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{
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Buf[0] = i;
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bcm2835_i2c_write_read_rs(Buf,1,Buf,1);
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bcm2835_i2c_read (Buf,1);
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printf("AIN%d:%5.2f ",i,(double)Buf[0]*3.3/255);
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}
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printf("\n");
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bcm2835_delay(100);
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}
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bcm2835_i2c_end();
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bcm2835_close();
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return 0;
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}
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