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assigning bits to arrays

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guestplanet
Guest

assigning bits to arrays

Posted: Tue Apr 22, 2008 9:45 pm

my code

Code:

static unsigned int16 reg_event[2];

#bit bit_event1_1    = reg_event[0].0
#bit bit_event1_2    = reg_event[0].1
#bit bit_event1_3    = reg_event[0].2
#bit bit_event1_4    = reg_event[0].3
#bit bit_event1_5    = reg_event[0].4
#bit bit_event1_6    = reg_event[0].5
#bit bit_event1_7    = reg_event[0].6
#bit bit_event1_8    = reg_event[0].7
#bit bit_event1_9    = reg_event[0].8

#bit bit_event2_1    = reg_event[1].0
#bit bit_event2_2    = reg_event[1].1
#bit bit_event2_3    = reg_event[1].2
#bit bit_event2_4    = reg_event[1].3
#bit bit_event2_5    = reg_event[1].4
#bit bit_event2_6    = reg_event[1].5
#bit bit_event2_7    = reg_event[1].6
#bit bit_event2_8    = reg_event[1].7
#bit bit_event2_9    = reg_event[1].8

received error when compiled. please explain what i do wrong?

PCM programmer

Joined: 06 Sep 2003
Posts: 21708

Posted: Tue Apr 22, 2008 10:08 pm

If you have version 4 of the compiler, then you can do arrays of bits.
See the example program below. It displays this as the output:

Quote:

10101010

Code:

#include <16F877.H>
#fuses XT, NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

int1 array_of_bits[20] = {0};

//====================================
void main()
{
int8 i;

array_of_bits[0] = 1;
array_of_bits[1] = 0;
array_of_bits[2] = 1;
array_of_bits[3] = 0;
array_of_bits[4] = 1;
array_of_bits[5] = 0;
array_of_bits[6] = 1;
array_of_bits[7] = 0;

for(i = 0; i < 8; i++)
printf("%u", array_of_bits[i]);

while(1);
}

guestplanet
Guest

Posted: Tue Apr 22, 2008 10:38 pm

found a way to fix this

Code:

static unsigned int16 reg_event[2];

#bit bit_event1_1 = reg_event+0.0
#bit bit_event1_2 = reg_event+0.1
#bit bit_event1_3 = reg_event+0.2
#bit bit_event1_4 = reg_event+0.3
#bit bit_event1_5 = reg_event+0.4
#bit bit_event1_6 = reg_event+0.5
#bit bit_event1_7 = reg_event+0.6
#bit bit_event1_8 = reg_event+0.7
#bit bit_event1_9 = reg_event+0.8

#bit bit_event2_1 = reg_event+2.0
#bit bit_event2_2 = reg_event+2.1
#bit bit_event2_3 = reg_event+2.2
#bit bit_event2_4 = reg_event+2.3
#bit bit_event2_5 = reg_event+2.4
#bit bit_event2_6 = reg_event+2.5
#bit bit_event2_7 = reg_event+2.6
#bit bit_event2_8 = reg_event+2.7
#bit bit_event2_9 = reg_event+2.8

p.s. wanted to individually assign names to bit variables within a defined array of words

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