Formatting result of ADC to Binary?

[jeremy ragsdale]

I am trying to get the binary 8 bit representation of the ADC and send it to the PC. I can manage to get a 0-255 value to the PC but I need the 0b00000000 representation. I'm sure this is really stupid and I have just been working to long to see the problem but if anyone could help I would really appreciate it.

#include <16f876.h>
#fuses HS,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP,PUT

#use Delay(Clock=4000000)
#use rs232(baud=19200,xmit=pin_c6,rcv=pin_c7,parity=n,bits=8)

void main(void)
{
long sensor1;

setup_adc(adc_clock_div_32);
setup_adc_ports(all_analog);

while(1)
{

set_adc_channel(1);
delay_us(10);
sensor1 = read_adc();
printf("\%ld",sensor1);

}
delay_ms(1000);

}
}</font>
___________________________
This message was ported from CCS's old forum
Original Post ID: 11409

[PCM programmer]

:= I have just been working to long to see the problem...
---------------------------------------------------------

Well, I didn't see any of your code for the routine...

But anyway, here is a routine.

[jeremy ragsdale]

Lets say I have a PIC! I have one PIN set as Analoge in and assign the digital converted number to a long variable called sensor1. This variable goes from 0-255, this much is clear. when I use printf("\%d"); I send some number from 0-255 to the RS232 chip. I have a c program on the PC that gets this input, but only in the form of a string. The problem is I want the string to be sent in binary rather than decimalThe main question is, is there a simple way to send a decimal number in binary. Have a look at the code and please help.

#include <16f876.h>
#fuses HS,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP,PUT

#use Delay(Clock=4000000)
#use rs232(baud=19200,xmit=pin_c6,rcv=pin_c7,parity=n,bits=8)

void main(void)
{
float sensor0,sensor1,sensor2,sensor3;

setup_adc(adc_clock_div_32);
setup_adc_ports(all_analog);

while(1)
{

/*
set_adc_channel(0);
delay_us(10);
sensor0 = read_adc();
//sensor0 = sensor0 * 0.02;
printf("\%ld",sensor0);
*/

set_adc_channel(1);
delay_us(10);
sensor1 = read_adc();
sensor1 = sensor1 * 0.02;
printf("\%f",sensor1);

/*
set_adc_channel(2);
delay_us(10);
sensor2 = read_adc();
//sensor2 = sensor2 * 0.02;
printf("\%ld",sensor2);
set_adc_channel(3);
delay_us(10);
sensor3 = read_adc();
//sensor3 = sensor3 * 0.02;
printf("\%ld",sensor3);
*/
delay_ms(1000);

}
}
___________________________
This message was ported from CCS's old forum
Original Post ID: 11414

[PCM programmer]

How about using putc() ?

The following test program will send the MSB
and LSB of a "long" to the RS-232 terminal.
It does not convert them to ascii. It just
sends the binary values.

#include "c:\program files\picc\devices\16F877.h"
#fuses HS,NOWDT,NOPROTECT,PUT,BROWNOUT, NOLVP
#use Delay(clock=8000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

//===============================================
main()
{
long k;

// For a test value, use something that will
// be readable when it's displayed on the terminal.
k = 0x3132;

putc(k >> 8); // Send MSB first
putc(k); // Send LSB

while(1);
}
___________________________
This message was ported from CCS's old forum
Original Post ID: 11415

[ze.vana]

Maybe I am late here but I was looking for this and did not find anything good.
I know should have solved your problem but it can serve for others!
code:

[bkamen]

If you waited until Feb, it would have been a decade!

But code contributions are always welcome!

(grin)
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D

[Ttelmah]

Except that the thread stopped, because it had been answered.
The original poster wanted to be able to send _raw binary_, _not_ ASCII text.....
Better to have contributed the code as a generic binary _text_ output routine in the code library, not here.

Best Wishes