16f676 to 16f72 conversion

[sahu]

i'm trying volt meter code conversion 16f676 to 16f72 step by step . use CCS C
16f676 code as

#include <16F676.h>
#device adc=10 
#fuses INTRC_IO,NOWDT,PUT,NOPROTECT,BROWNOUT,NOMCLR
#use delay (clock=4000000) // 4MHz clock

#rom  0x3ff={0x3444}

#byte PORTA = 0x05
#byte PORTC = 0x07
#byte TRISA = 0x85
#byte TRISC = 0x87

#define SPORTA PORTA
#define SPORTC PORTC

#define  TICKS_BETWEEN_INTERRUPTS      5000 //5000
#define  INTERRUPT_OVERHEAD            35
#define  TMR1RESET (0xFFFF-(TICKS_BETWEEN_INTERRUPTS-INTERRUPT_OVERHEAD))

const char SegCode[11] = {0x40,0x57,0x22,0x06,0x15,0x0C,0x08,0x56,0x00,0x04,0xFF};
	//                  0    1    2    3    4    5    6    7    8    9
const char Column[3]   = {0x02,0x01,0x04};
static char Segment[3] = {0x7f,0x7f,0x7f};	
static unsigned char ColCount=0x00;

void CPU_SETUP(void);
void Display(void);
void HTO7S(unsigned int32 Num);

byte i;
unsigned int32 result;

#INT_TIMER1
void Timer1(void)
{	
	set_timer1(TMR1RESET);
	Display();	
}	

void main()
{		
	unsigned char i;
	
	CPU_SETUP();
	
	while(true)
	{			
		result=0;
		for (i=0;i<20;i++)
		{
			set_adc_channel(3); 
			delay_ms(1); 
			result=result+read_adc();
		}
			//result = 0x3fe;									
	 	HTO7S(result/20);	
		delay_ms(200);		    
	}
	
}

void CPU_SETUP()
{
 	
   setup_comparator(NC_NC_NC_NC);	// not use comparator module
   setup_adc_ports( sAN3 | VSS_VDD); 
   setup_adc(ADC_CLOCK_DIV_64);
   TRISA=0b00011000;
   PORTA=0x27;
   TRISC=0b00000000;
   PORTC=0x37;
   
   
   setup_timer_1(T1_INTERNAL|T1_DIV_BY_1);
   set_timer1(TMR1RESET);
   enable_interrupts(GLOBAL);
   enable_interrupts(INT_TIMER1);   
}

//-------------------------------------
// Display routine
//-------------------------------------
void Display()
{
	PORTA = 0b00100111;	  // off all digits column and Segment G
	PORTC = 0b00111111;   // off segment a-f	
	delay_cycles(2);
	

	if (ColCount>=3) 
	ColCount=0;
    	
	SPORTC = Segment[ColCount];
	SPORTA = ((Segment[ColCount] & 0b01000000)>>1) | (Column[ColCount]^0x07);
	ColCount++;				
}	

//--------------------------------------
// Convet HEX 2 byte to 7-Segment code
//--------------------------------------
void HTO7S(unsigned int32 Num)
{

	unsigned int32 res;

	
	Segment[0]=SegCode[30*Num/10230];
	if (Segment[0]==0x40) 
	Segment[0]=0xFF;
	
	res = 30*Num%10230;
	Segment[1]=SegCode[10*res/10230];
	res=10*res%10230;
	Segment[2]=SegCode[10*res/10230];
}

1st of all trying understand
7seg. aregment
676 as

const char SegCode[11] = {0x40,0x57,0x22,0x06,0x15,0x0C,0x08,0x56,0x00,0x04,0xFF};
// 0 1 2 3 4 5 6 7 8 9

i want 72 as

	Ues 7 Segment Common Anod

	PORT RB7 = A
	PORT RB6 = B
	PORT RB5 = C
	PORT RB4 = D
	PORT RB3 = E
	PORT RB2 = F
	PORT RB1 = G

	PORT RB0 = Display 1
	PORT RC7 = Display 2
	PORT RC6 = Display 3

***********************************************************************************************
		0= on , 1 = off

         a
	---
       |   |b
     f | g |
        ---
       |   |c
     e |   |
        ---
         d
************************************************************************************************
	______________________________________________________
PORT	|RB7	|RB6	|RB5	|RB4	|RB3	|RB2	|RB1  |
________|_______|_______|_______|_______|_______|_______|_____|
	| A	| B	| C	| D	| E	| F	| G   |
	|_______|_______|_______|_______|_______|_______|_____|
Digit
_______________________________________________________________
  1 =	  1	 0	 0	 1	1	 1	 1	=
_______________________________________________________________
  2 =	  0 	 0	 1	 0	0	 1	 0 	=
_______________________________________________________________
  3 =	  0	 0 	 0	 0	1	 1	 0	=
_______________________________________________________________
  4 =	  1	 0	 0	 1	1	 0 	 0	=
_______________________________________________________________
  5 =	  0	 1 	 0	 0	1	 0	 0	=
_______________________________________________________________
  6 =	  1	 1	 0	 0	0	 0	 0	=
_______________________________________________________________
  7 =	  0	 0	 0	 1	1	 1	 1	=
_______________________________________________________________ 
  8 =	  0	 0 	 0	 0	0	 0	 0	=
_______________________________________________________________
  9 =	  0	 0	 0	 0	1	 0	 0	=
_______________________________________________________________
OFF =	  1	 1	 1	 1	1	 1	 1	=
_______________________________________________________________

but confuse whats right
for exampled digit
1 = 1 0 0 1 1 1 1 = 4F Is right or
1 = 1 0 0 1 1 1 1 = 79 is right

 

[sahu]

any body not reply yet !

 

[Ian Rogers]

but confuse whats right
for exampled digit
1 = 1 0 0 1 1 1 1 = 4F Is right or
1 = 1 0 0 1 1 1 1 = 79 is right

Both are not right..... you are dismissing the LSBit... so 1001111x will be 0x9E hex or 158 decimal

 

[sahu]

Both are not right..... you are dismissing the LSBit... so 1001111x will be 0x9E hex or 158 decimal

Thank u sir for reply 7 guide me .
as per Ur sussation

	Ues 7 Segment Common Anod

	PORT RB7 = A
	PORT RB6 = B
	PORT RB5 = C
	PORT RB4 = D
	PORT RB3 = E
	PORT RB2 = F
	PORT RB1 = G

	PORT RB0 = Display 1
	PORT RC7 = Display 2
	PORT RC6 = Display 3

***********************************************************************************************
		0= on , 1 = off

         a
	---
       |   |b
     f | g |
        ---
       |   |c
     e |   |
        ---
         d
************************************************************************************************
	______________________________________________________
PORT	|RB7	|RB6	|RB5	|RB4	|RB3	|RB2	|RB1  |
________|_______|_______|_______|_______|_______|_______|_____|
	| A	| B	| C	| D	| E	| F	| G   |
	|_______|_______|_______|_______|_______|_______|_____|
Digit
_______________________________________________________________
  1 =	  1	 0	 0	 1	1	 1	 1	= 9E
_______________________________________________________________
  2 =	  0 	 0	 1	 0	0	 1	 0 	= 24
_______________________________________________________________
  3 =	  0	 0 	 0	 0	1	 1	 0	= C
_______________________________________________________________
  4 =	  1	 0	 0	 1	1	 0 	 0	= 98
_______________________________________________________________
  5 =	  0	 1 	 0	 0	1	 0	 0	= 48
_______________________________________________________________
  6 =	  1	 1	 0	 0	0	 0	 0	= C0
_______________________________________________________________
  7 =	  0	 0	 0	 1	1	 1	 1	= 1E
_______________________________________________________________ 
  8 =	  0	 0 	 0	 0	0	 0	 0	= 0
_______________________________________________________________
  9 =	  0	 0	 0	 0	1	 0	 0	= 8
_______________________________________________________________
OFF =	  1	 1	 1	 1	1	 1	 1	= FF
_______________________________________________________________

now i'm doing right ?

 

[Ian Rogers]

Yep... Seems ok...

 

[sahu]

how can manege displays ?
( PORT RB0 = Display 1
PORT RC7 = Display 2
PORT RC6 = Display 3 )

 

[Ian Rogers]

The best way is to setup a interrupt to update the displays when required..... Nigel's tutorials have a multiplexed 7 segment tutorial...

See the link in my signature.

 

[sahu]

The best way is to setup a interrupt to update the displays when required..... Nigel's tutorials have a multiplexed 7 segment tutorial...

See the link in my signature.

not understand . in

tutorial 10... Dual seven segment display ( common anode )

my conversion in shown fig.

 

[Ian Rogers]

What do you mean "how can manege displays ?"

How many seven segment displays have you got?

 

[sahu]

What do you mean "how can manege displays ?"

How many seven segment displays have you got?

my mean how can manege displays with ( PORT RB0 = Display 1
PORT RC7 = Display 2
PORT RC6 = Display 3 ).
for exampled 1 = 1 0 0 1 1 1 1
so pl give example for digit 1 , 2 & 3 management

 

[Ian Rogers]

You are using MikroC... I use XC8 or C18.... If I give you an example ( there is one in MY tutorial... 10 same as Nigel's ) but It wont work on your compiler.

Do I get from the title that you have pic16f72 ?

 

[sahu]

You are using MikroC... I use XC8 or C18.... If I give you an example ( there is one in MY tutorial... 10 same as Nigel's ) but It wont work on your compiler.

Do I get from the title that you have pic16f72 ?

i'm using CCS C & PIC 16F72 , not MikroC.
in 1st post is complete code vm for 30 v dc , i want it convert 600 vac & 16f72.
also lurn step by step its function.

 

[Ian Rogers]

i'm using CCS C & PIC 16F72 , not MikroC.
in 1st post is complete code vm for 30 v dc , i want it convert 600 vac & 16f72.
also lurn step by step its function.

I'm just changing it to run on my sim... I have converted to Hi tech to see what gives.... Just trying to get the interrupt working..

 

[sahu]

I'm just changing it to run on my sim... I have converted to Hi tech to see what gives.... Just trying to get the interrupt working..

Hi tech gives u any result ?....

 

[Ian Rogers]

Still can't get the interrupt going..... I really can't see why.... The TMR1IE is set and the GIE is set.... But when the TMR1IF goes high... It doesn't enter the ISR??????

It may be a problem with the sim or the compiler.... I think its the compiler because in the dissasembly the ISR hasn't got a REFIE command or the SWAPF to reinstate the W reg...

Digging deeper...