Cùng khai hoang con 16F88

[mafd_47a]

Khi moi lap trinh cho F88 chac co nhieu ban bo ngo ve phan "Configuration Bits", va toi cung vay. Sau day la mot so diem khac biet so voi F84

+ Cac bit Configuration duoc luu o hai dia chi bo nho 2007h( gom 14 bit) va 2008h (2 bit) va cac bit nay duoc dinh nghia trong MPASM do la

PHP Code:

_CONFIG1                    EQU     H'2007'
_CONFIG2                     EQU     H'2008'

;Configuration Byte 1 Options
_CP_ALL                      EQU     H'1FFF'
_CP_OFF                      EQU     H'3FFF'
_CCP1_RB0                    EQU     H'3FFF'
_CCP1_RB3                    EQU     H'2FFF'
_DEBUG_OFF                   EQU     H'3FFF'
_DEBUG_ON                    EQU     H'37FF'
_WRT_PROTECT_OFF             EQU     H'3FFF'    ;No program memory write protection
_WRT_PROTECT_256             EQU     H'3DFF'    ;First 256 program memory protected
_WRT_PROTECT_2048            EQU     H'3BFF'    ;First 2048 program memory protected
_WRT_PROTECT_ALL             EQU     H'39FF'    ;All of program memory protected
_CPD_ON                      EQU     H'3EFF'
_CPD_OFF                     EQU     H'3FFF'
_LVP_ON                      EQU     H'3FFF'
_LVP_OFF                     EQU     H'3F7F'
_BODEN_ON                    EQU     H'3FFF'
_BODEN_OFF                   EQU     H'3FBF'
_MCLR_ON                            EQU     H'3FFF'
_MCLR_OFF                    EQU     H'3FDF'
_PWRTE_OFF                   EQU     H'3FFF'
_PWRTE_ON                    EQU     H'3FF7'
_WDT_ON                      EQU     H'3FFF'
_WDT_OFF                     EQU     H'3FFB'
_EXTRC_CLKOUT                EQU     H'3FFF'
_EXTRC_IO                    EQU     H'3FFE'
_INTRC_CLKOUT                EQU     H'3FFD'
_INTRC_IO                    EQU     H'3FFC'
_EXTCLK                      EQU     H'3FEF'
_HS_OSC                      EQU     H'3FEE'
_XT_OSC                      EQU     H'3FED'
_LP_OSC                      EQU     H'3FEC'

;Configuration Byte 2 Options
_IESO_ON                     EQU     H'3FFF'
_IESO_OFF                    EQU     H'3FFD'
_FCMEN_ON                    EQU     H'3FFF'
_FCMEN_OFF                   EQU     H'3FFE' 


Chac co mot so ban ko hieu duoc y nghia tung Bit phai ko , cac ban co the tham khao trang 129,130,131 cua Datasheet 16f88, viet rat chi tiet

Nhu vay khac voi F84 , F88 co lenh thong thuong de dua ra _config_ trong MPASM do la

PHP Code:

    __CONFIG    _CONFIG1, _CP_OFF & _CCP1_RB0 & _DEBUG_OFF & _CPD_OFF & _LVP_OFF & _BODEN_OFF & _MCLR_OFF & _PWRTE_ON & _WDT_OFF & _HS_OSC   
__CONFIG    _CONFIG2, _IESO_OFF & _FCMEN_OFF 


Chia se mot chut voi anh em