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10f222 ADC

 
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PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Thu Sep 24, 2009 6:19 pm     Reply with quote
Here is demo program for the ADC on the 10F222. This was tested in
hardware with vs. 4.073.

A 10K trimpot was connected between +5v and ground. The wiper of
the trimpot was connected to the AN0 pin (GP0) on the 10F222. Pin GP2
was connected to the Rx pin (pin 2 on a DB9) on the COM1 port on the
PC. Pin 5 on the DB9 was connected to ground on the 10F222 board.
There is a 10K pull-up resistor on the MCLR pin.

While running the program, the trimpot was turned from one limit to
the other limit. The follow output was displayed in a terminal window
on the PC. This is correct output.
Quote:

0
0
19
58
88
117
128
154
191
232
255
255
255


Here is the demo program:
Code:

#include <10F222.H>
#fuses IOSC4,NOWDT,MCLR
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_B2, INVERT)

#define set_options(value)   {#ASM         \
                              MOVLW  value \
                              OPTION       \
                              #ENDASM}

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

set_options(0xDF);  // Enable pin B2 for normal i/o

setup_adc_ports(sAN0);
setup_adc(TRUE);
set_adc_channel(0);
delay_us(20);

while(1)
  {
   result = read_adc();
   printf("%U \n\r", result);
   delay_ms(500);
  }

}
eabir



Joined: 16 Aug 2010
Posts: 19

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PostPosted: Fri Oct 28, 2011 4:08 am     Reply with quote
ok,

but my question was what is the best way in coding in order to follow the count increament.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Fri Oct 28, 2011 11:13 am     Reply with quote
Please continue in your original thread:
http://www.ccsinfo.com/forum/viewtopic.php?t=46620

In your original thread, post some more information about what you
mean by "follow the count".
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