data acquisition with CCS,first topic help please

[TheBeginner]

hi everyone,as u can see i'm a new member and a beginner in pic C programming,so i hope that you can help me and be patient with me!!!
i want to realize the circuit shown in the picture below,using the pic18f8722
and the DAC08( digital to analog converter),the tranmitted signal must vary from 0x00 to 0xff.
1-my first question is how can i introduce the pic18f8722 in my CCS cause i it doesn't exist even in the last version (i have 3.43 ide version pcwh)??
2-can i get the 04 analog signal from my circuit at the same time??and how?
i'm trying to do something like tath

#include<pic18f8722.h>
#include<stdio.h>
#use delay (clock=20000000)
void main ()
{
setup_adc_port_A(allanalog);
setup_adc(ADC_CLOCK_INTERNAL );
set_adc_channel(0)
unsigned char dsignal=0;
float rcv0[256],rcv1[256],rcv2[256],rcv4[256]
SET_TRIS_F(0x00); //put the prot F as digital output
while (1)
{
PORTF=dsignal++; // output digital signal

if(dsignal==0xff);
{
dsignal=0;
}

delay ms(100);
rcv0=read_adc(A0) // here i don't know if 'im right but i wanna do something
rcv1=read_adc(A1) // like that and after to store all the values taht i get
rcv2=read_adc(A2) //
rcv4=read_adc(A4) //
}



thanks a lot[/img]

[TheBeginner]

sorry here it is the circuit

[TheBeginner]

please i need your help

[PCM programmer]

[TheBeginner]

okey i've resolved my first question to buy the last version 4.013 which contains the pic18f8722
what about the second ????

[PCM programmer]

After you setup the A/D port(s) and setup the A/D, then you can
sequentially read each A/D channel. You select the channel, wait
for a short delay time and then read the channel.

Also, the output of the A/D is either an 8-bit or a 10-bit unsigned integer.
It's not a float. If you want the 10-bit result, you have to tell the compiler
to do this with a "#device adc=10" statement. You also have to store the
10-bit result in a 16-bit variable.

[TheBeginner]

thanks a lot for your help man,but here if i do" int8 result0,result1 " i will have only one value for the" result0 and result1" ,i need to get 256 times the data from channel0 (for exemple)
can i do something like that

int8 result0[256],result1[256]
.
.
.
.result0=read_adc

[PCM programmer]

Use a for(;;) loop to cycle through indexes of 0 to 255 in your arrays.

[TheBeginner]

[SherpaDoug]

Why do you want to store 256 A/D values in an array? That will chew up a lot of RAM space. Your PIC has enough space though most PICs don't. If you are simply taking an average you can just keep a sum as readings are taken. You have time to do some math while waiting for the A/D to take its readings.
_________________
The search for better is endless. Instead simply find very good and get the job done.

[TheBeginner]

i'm not taking a average,i need the 256 a/d values from four chaneels to post them in a graphe (such as I=f(V) ),so i gotta to store them and after to post them by using an LCd
thanks very much for your help

[PCM programmer]

If you want to loop through all 256 elements of the arrays and display
the contents, here is one way to do it:

[TheBeginner]

sorry but what do you mean by adress
thanks

[PCM programmer]

'address' was just another name for the array index, or the position
within the array.