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  Topic: TIMER1 too slow
Flavio58

Replies: 4
Views: 17089

PostForum: General CCS C Discussion   Posted: Mon Sep 08, 2003 8:56 am   Subject: TIMER1 too slow
I have activated a timer1 connected at a 32Khz oscillator to manage the date/time in my project.
The function to manage the overflow is this


#int_timer1
void clock_isr()
{ ...
  Topic: Programm startup
Flavio58

Replies: 1
Views: 12021

PostForum: General CCS C Discussion   Posted: Wed Aug 06, 2003 2:33 am   Subject: Programm startup
Excuse me for this stupid questions but I am a new pic user.....
I created a project using PIC18 a microcontroller.
To develop the software I used a ICD 2 and PICDEM 2 board.
Using this board I wrote ...
  Topic: A small suggestion for CCS manual ....
Flavio58

Replies: 5
Views: 19469

PostForum: General CCS C Discussion   Posted: Mon Aug 04, 2003 4:39 am   Subject: A small suggestion for CCS manual ....
Since in Micropchip PICxx datasheets all functions are explained using the registers...why in the CCS manual, near the compiler functions, you don't write the concerned register setting ?
This is bec ...
  Topic: rtcc on timer 1 ... is possible ?
Flavio58

Replies: 1
Views: 12567

PostForum: General CCS C Discussion   Posted: Mon Aug 04, 2003 3:39 am   Subject: rtcc on timer 1 ... is possible ?
In my project I use two crystal quartz.
The first is a 4 MHZ quartz connected to OSC1 and OSC2 and is used as pic clock.
The second quartz is a 32 KHZ quartz connected to RC0/T1OSO/T1CKL and RC1/T1OSI ...
  Topic: Timer1 using bit0 & bit1 on portc
Flavio58

Replies: 2
Views: 14461

PostForum: General CCS C Discussion   Posted: Fri Aug 01, 2003 2:57 am   Subject: Re: Timer1 using bit0 & bit1 on portc
:=If your going to keep time using a crystle have a look at the thread on RTC. You will probably find some insight.

I known the rtcc method....
My problem is another.
When you connect a crystal to a ...
  Topic: Timer1 using bit0 & bit1 on portc
Flavio58

Replies: 2
Views: 14461

PostForum: General CCS C Discussion   Posted: Thu Jul 31, 2003 4:59 am   Subject: Timer1 using bit0 & bit1 on portc
To create an date/time system in my project I used a 32KHZ crystal connected at RC0/t1OSO/T1CKL and RC1/T1OSI/CCP2.
To oscillate this crystal need that I set the T1CON register (T1OSCEN bit) with 1 (T ...
  Topic: Debug problem....
Flavio58

Replies: 1
Views: 12472

PostForum: General CCS C Discussion   Posted: Fri Jul 25, 2003 7:58 am   Subject: Debug problem....
Using RTCC I created a clock that count the seconds number elapsed since 1-1-2001.
In my software I wrote two functions....
The first receive as arguments the string address where store the date-time ...
  Topic: Rtcc
Flavio58

Replies: 7
Views: 24690

PostForum: General CCS C Discussion   Posted: Wed Jul 16, 2003 1:05 am   Subject: Re: Rtcc
:=People use 32.768kHz crystals because they divide by an even power of 2 to get 1Hz. Also because they are so slow and low powered they can run for years off of a small battery.
:=


This is the ans ...
  Topic: Rtcc
Flavio58

Replies: 7
Views: 24690

PostForum: General CCS C Discussion   Posted: Tue Jul 15, 2003 8:31 am   Subject: Re: Rtcc
Page 181 ???
At page 181 of C Compiler Reference there is the Standard C definition .... (C Compiler Referrence Manual - MAY 2003)
___________________________
This message was ported from CCS's old fo ...
  Topic: Rtcc
Flavio58

Replies: 7
Views: 24690

PostForum: General CCS C Discussion   Posted: Tue Jul 15, 2003 7:37 am   Subject: Rtcc
In my project I use a 32Khz quartz connected to pin rc0/t1oso/T1CKI (PIC18F452).
In my software I use the rtcc interrupt to count the seconds number.
In CCS example there is the definition :


#define ...
  Topic: RTCC ???
Flavio58

Replies: 1
Views: 12353

PostForum: General CCS C Discussion   Posted: Mon Jul 14, 2003 8:31 am   Subject: RTCC ???
To create a system clock to memorize the date/time I used a method as this used in computer bios system.
Into a setup variable I saved the second's number from a known date ... after I add the rtcc s ...
  Topic: Read_bank and write_bank
Flavio58

Replies: 1
Views: 13014

PostForum: General CCS C Discussion   Posted: Mon Jul 07, 2003 6:35 am   Subject: Read_bank and write_bank
Excuse me but I am a novice of PIC programming....

In my project I must to comunicate with a FPGA using PSP....
In CCS example I saw the read_bank and write_bank functions...
On CCS manual there is : ...
  Topic: ADC
Flavio58

Replies: 4
Views: 20282

PostForum: General CCS C Discussion   Posted: Wed Jun 25, 2003 2:05 am   Subject: Re: ADC
:=c:\Program Files\Picc\Examples
:=Look at the EX_ADMM.C file, for an example of using the
:=read_adc() function with the PIC18.
:=
:=Also look here for more examples:
:=c:\Program Files\Picc\Drivers ...
  Topic: ADC
Flavio58

Replies: 4
Views: 20282

PostForum: General CCS C Discussion   Posted: Tue Jun 24, 2003 9:14 am   Subject: ADC
Do you known where is possible to download some examples about the PIC18 ADC conversion ?
I must to controll a 2.5v and a 3.3V on a board.
Is possible execute this contrll using the ReadAdc() function ...
  Topic: Pointer in struct .....
Flavio58

Replies: 2
Views: 14706

PostForum: General CCS C Discussion   Posted: Tue Jun 24, 2003 8:35 am   Subject: Pointer in struct .....
I tried to use some pointers into a structure but the compiler show me an error ...

My struct si :

struct errorMessage {
char *language1;
char *language2;
} errs[] = {
{ "msg1", "msg2 ...
 
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