Probe to read quadrature encoder with DT_INT need help

[phoenix_1]

When I compile MCSP return next error's (compile with MPASM).
PBP 2.50C
Procesor 16F877 @ 20MHz.
ERROR's:
error[128]877 qei.asm 87 : Missing argument(s)
error[118]877 qei.asm 87 : Overwriting previus address contents (2007)

@ __config & _WDT_ON & _PWRTE_OFF & _BODEN_ON & _LVP_OFF & _CP_OFF & _DATA_CP_OFF
'@ Device pic16F877, HS_OSC, BOD_ON, PWRT_OFF, WDT_ON, PROTECT_OFF
    Define osc 20
    DEFINE HSER_RCSTA 90h ' Enable serial port & continuous receive
    DEFINE HSER_TXSTA 24h ' Enable transmit, BRGH = 1
    DEFINE HSER_SPBRG 64  ' 19200 Baud @ 20MHz, 0.16%
    DEFINE HSER_CLROERR 1 ' Clear overflow automatically
    ADCON1 = 7
    old_val VAR BYTE
	new_val VAR BYTE
	direction_bit VAR BIT
	enc_counter VAR WORD
    enc_counter = 10000
	new_val = PORTB & %00000011
    TRISB = %00000011
    INCLUDE "DT_INTS-14-0.bas"     ' Base Interrupt System
    INCLUDE "ReEnterPBP-0.bas"     ' Include if using PBP interrupts
    
ASM
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler    INT_INT,  _QEI,   PBP,  yes
    endm
    INT_CREATE               ; Creates the interrupt processor

 ENDASM
@ INT_ENABLE   INT_INT     ; enable external (INT) interrupts
rs232:
    pause 1     
    goto rs232
    
    QEI:
    
	old_val = new_val

	new_val = PORTB & %00000011
	
	IF new_val = old_val Then again

	direction_bit = old_val.bit0 ^ new_val.bit1
	
	IF direction_bit = 1 Then  
	
			enc_counter = enc_counter + 1
		
	else
		
		enc_counter = enc_counter - 1
		endif
		hserout [dec enc_counter]
	again:
@ INT_RETURN

[aratti]

ASM
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler    INT_INT,  _QEI,   PBP,  yes
    endm
    INT_CREATE               ; Creates the interrupt processor

 ENDASM

_QEI label ; PBP and yes not correctly allined. Change as per the following

ASM
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler    INT_INT,         _QEI,   PBP,  yes
    endm
    INT_CREATE               ; Creates the interrupt processor

 ENDASM

Al.

[phoenix_1]

@ __config & _WDT_ON & _PWRTE_OFF & _BODEN_ON & _LVP_OFF & _CP_OFF & _DATA_CP_OFF
'@ Device pic16F877, HS_OSC, BOD_ON, PWRT_OFF, WDT_ON, PROTECT_OFF
    Define osc 20
    DEFINE HSER_RCSTA 90h ' Enable serial port & continuous receive
    DEFINE HSER_TXSTA 24h ' Enable transmit, BRGH = 1
    DEFINE HSER_SPBRG 64  ' 19200 Baud @ 20MHz, 0.16%
    DEFINE HSER_CLROERR 1 ' Clear overflow automatically
    ADCON1 = 7
    old_val VAR BYTE
	new_val VAR BYTE
	direction_bit VAR BIT
	enc_counter VAR WORD
    enc_counter = 10000
	new_val = PORTB & %00000011
    TRISB = %00000011
    INCLUDE "DT_INTS-14.bas"     ' Base Interrupt System
    INCLUDE "ReEnterPBP.bas"     ' Include if using PBP interrupts
ASM
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler    RBC_INT,         _LED,   PBP,  yes
    endm
    INT_CREATE               ; Creates the interrupt processor

 ENDASM
@   INT_ENABLE   INT_INT     ; enable external (INT) interrupts
    rs232:
    pause 1     
    goto rs232
    
    LED:
    
	old_val = new_val

	new_val = PORTB & %00000011
	
	IF new_val = old_val Then again

	direction_bit = old_val.bit0 ^ new_val.bit1
	
	IF direction_bit = 1 Then  
	
			enc_counter = enc_counter + 1
		
	else
		
		enc_counter = enc_counter - 1
		endif
		hserout [dec enc_counter]
	again:
@ INT_RETURN

PBP 2.47 , 250 or 250C in all version same errors ???

can you edit and post my code full please sir?

[Acetronics2]

Hi,

Your error is double ...

1)

@ __config & _WDT_ON & _PWRTE_OFF & _BODEN_ON & _LVP_OFF & _CP_OFF & _DATA_CP_OFF

do not use " & " before the first data : WDT_ON ...

2)

You have to comment the CONFIG lines already existing in your 16F877 .inc file ( PBP folder ) if you want custom ones ... see FAQ for details.

Alain

[phoenix_1]

Acetronics your help is 100% work.
Thank's many thanks man.
And one question more...how DT interupt can be fast ?

[Acetronics2]

And one question more...how DT interupt can be fast ?

Hi,

I do not know exactly ...

but it's roughly the time to save and restore all the PBP variables in use, added to the "classic" ASM interrupts time ...

You can Use the MPLAB SIM ... You will have a very good idea !

Alain