ASM51

Por acaso alguém por ai tem como me dar uma sugestão de como fazer a migração do PIC F76 para o F252?
TEm a seguinte configuração:

__CONFIG _CP_OFF & _WDT_ON & _BODEN_ON & _PWRTE_ON & _XT_OSC & _WRT_ENABLE_ON & _LVP_OFF & _DEBUG_OFF & _CPD_OFF


BANK1 MOVLW B'00111111' MOVWF TRISA
MOVLW B'00001111' MOVWF TRISB MOVLW B'00000000' MOVWF TRISC MOVLW B'00000000' MOVLW B'10000010' MOVWF OPTION_REG ;PRESCALER 1:32 NO TMRO
;PULL_UPS DESABILIADOS, DEMAIS BITS IRRELEVANTES
MOVLW B'10000000' ;CHAVE GERAL DE INTERRUPCAO DESLIGADA
MOVWF INTCON MOVLW B'00000111' ;DEFINE PORTA COMO I/0 DIGITAIS
MOVWF ADCON1 MOVLW B'11000000'
MOVWF INTCON ; CONFIGURA INTERRUPÇÕES
; HABILITADA A INTERRUPÇÃO DE TIMER0
; HABILITA AS INTERRUPÇÕES DE PERIFÉRICO
MOVLW B'00000001'
MOVWF PIE1 ; CONFIGURA INTERRUPÇÕES DE PERIFIÉRICOS
; HABILITADA A INTERRUPÇÃO DE TMR1
BANK0 ; SELECIONA BANCO 0 DA RAM
MOVLW B'00110000'
MOVWF T1CON ; CONFIGURA TMR1
; PRESCALER -> 1:8
; INCREMENTADO PELO CICLO DE MÁQUINA


Se alguém puder me dar uma dica...

no f252 vc temn muito mais fuses.
eh simples...

Tome cuidado com as configuracoes....
ADCON1 eh diferente
TMR1 eh diferente - 16 bits

Tome cuidado com isso tambem:
When the Timer1 oscillator is enabled (T1OSCEN is
set), the RC1/T1OSI and RC0/T1OSO/T1CKI pins
become inputs. That is, the TRISC<1:0> value is
ignored, and the pins are read as ‘0’.

Pra desabilitar os pull ups no portb, utilize 0 no bit 7 de INTCON2

Sobre configuration bits, dah uma olhada em:

http://forum.microchip.com/tm.aspx?m=39372
http://forum.microchip.com/tm.aspx?m=162967

Sobre configuration bits, ta ai um exemplo pro 452:

Código: Selecionar todos

// Configuration settings available for processor 18F452

//#pragma config OSC = LP            //Oscillator Selection:LP
//#pragma config OSC = XT            //Oscillator Selection:XT
#pragma config OSC = HS            //Oscillator Selection:HS
//#pragma config OSC = RC            //Oscillator Selection:RC
//#pragma config OSC = EC            //Oscillator Selection:EC-OSC2 as Clock Out
//#pragma config OSC = ECIO          //Oscillator Selection:EC-OSC2 as RA6
//#pragma config OSC = HSPLL         //Oscillator Selection:HS-PLL Enabled
//#pragma config OSC = RCIO          //Oscillator Selection:RC-OSC2 as RA6
               
#pragma config OSCS = OFF          //Osc. Switch On Off

#pragma config   PWRT = ON             //Power Up Timer
 
#pragma config BOR = ON              //Brown Out Reset:
   
#pragma config BORV = 45             //Brown Out Voltage:4.5V
// #pragma config BORV = 42         //Brown Out Voltage:4.2V
// #pragma config BORV = 27         //Brown Out Voltage:2.7V
// #pragma config BORV = 25         //Brown Out Voltage:2.5V

 
#pragma config WDT = OFF           // Watchdog Timer
 
//#pragma config WDTPS = 1              //Watchdog Postscaler:1:1
//#pragma config WDTPS = 2              //Watchdog Postscaler:1:2
//#pragma config WDTPS = 4              //Watchdog Postscaler:1:4
//#pragma config WDTPS = 8              //Watchdog Postscaler:1:8
//#pragma config WDTPS = 16             //Watchdog Postscaler:1:16
//#pragma config WDTPS = 32             //Watchdog Postscaler:1:32
//#pragma config WDTPS = 64             //Watchdog Postscaler:1:64
//#pragma config WDTPS = 128            //Watchdog Postscaler:1:128

#pragma config CCP2MUX = OFF          //CCP2 Mux:Disable (RB3)

#pragma config STVR = OFF             //Stack Overflow Reset:Disabled
     
#pragma config LVP = OFF              //Low Voltage ICSP:Disabled
       
#pragma config DEBUG = OFF            //Background Debugger Enable:Disabled
   
#pragma config CP0 = OFF              //Code Protection Block 0:Disabled
#pragma config CP1 = OFF              //Code Protection Block 1:Disabled
#pragma config CP2 = OFF              //Code Protection Block 2:Disabled
#pragma config CP3 = OFF              //Code Protection Block 3:Disabled
#pragma config CPB = OFF              //Boot Block Code Protection:Disabled
#pragma config CPD = OFF              //Data EEPROM Code Protection:Disabled
#pragma config WRT0 = OFF             //Write Protection Block 0:Disabled
#pragma config WRT1 = OFF             //Write Protection Block 1:Disabled
#pragma config WRT2 = OFF             //Write Protection Block 2:Disabled
#pragma config WRT3 = OFF             //Write Protection Block 3:Disabled
#pragma config WRTB = OFF             //Boot Block Write Protection:Disabled   
#pragma config WRTC = OFF             //Configuration Register Write Protection:Disabled
#pragma config WRTD = OFF             //Data EEPROM Write Protection:Disabled
#pragma config EBTR0 = OFF            //Table Read Protection Block 0:Disabled
#pragma config EBTR1 = OFF            //Table Read Protection Block 1:Disabled
#pragma config EBTR2 = OFF            //Table Read Protection Block 2:Disabled
#pragma config EBTR3 = OFF            //Table Read Protection Block 3:Disabled
#pragma config EBTRB = OFF            //Boot Block Table Read Protection:Disabled


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