joão leopoldino

nada feito se eu colocar _xt_osc_ & funciona legal mas com cristal externo ? interno nada

legal mas muito obrigado vou continuar quebrando a cabeça

e um pisca pisca ele pisca de um em um segundo poderia mudar a rotina de delay para mudar o tempo so que muitas das vezes nao temos o cristal e usar o cristal interno e uma opção este e o codico ;************************************************************************************ ; programa – pisca pisca ;************************************************************************************ ; arquivos de definicoes ;************************************************************************************ #include ;arquivo padrão microchip para pic16f628a ;************************************************************************************ ; bits de configuração ;************************************************************************************ ; __config _wdt_on & _pwrte_on & _boden_off & _lvp_off & _cp_off &_intrc_io ;_xt_osc ;************************************************************************************ ; paginacao da memoria ;************************************************************************************ ;comandos para alteracao de pagina de memoria bank0 macro ;macro para selecionar banco 0 bcf status,rp0 bcf status,rp1 endm ;fim da macro bank0 bank1 macro ;macro para selecionar banco 1 bsf status,rp0 bcf status,rp1 endm ;fim da macro bank1 ;************************************************************************************ ; variaveis ;************************************************************************************ ;enderecos das variaveis utilizadas pelo sistema ;variaveis so reconhecidas no banco 0 de memoria cblock 0x20 ;endereco inicial da memoria do usuario temp temp1 ;0x23 - registrador temporario temp2 ;0x24 - registrador temporario 2 endc ;fim do bloco de memória ;************************************************************************************ ;variaveis com espelho em todos os bancos de memoria. reconhecidas em qualquer banco. ;************************************************************************************ ; constantes ;************************************************************************************ ;constantes utilizadas pelo sistema. #define led pórtb,0 ;************************************************************************************ ; flags ;************************************************************************************ ;registrador flags ;************************************************************************************ ; entradas ;************************************************************************************ ;pinos que serao utilizados como entrada #define botao1 porta,1 ;0 --> pressionado ;1--> liberado #define botao2 porta,2 ;0 --> pressionado ;1 --> liberado #define botao3 porta,3 ;0 --> pressionado ;1 --> liberado ;************************************************************************************ ; saidas ;************************************************************************************ ;************************************************************************************ ; inicializa a eeprom ;************************************************************************************ ;************************************************************************************ ; vetor de reset ;************************************************************************************ org 0x00 goto inicio ;************************************************************************************ ; interrupcao ;************************************************************************************ ;as interrupcoes nao serao utilizadas org 0x04 ;endereco inical da interrupcao retfie ;retorna da interrupcao ;************************************************************************************ ; inicio ;************************************************************************************ inicio bank1 _intosc_clkout movlw b'01000100' ;altera para banco1 movwf osccon movlw b'00011111' movwf osctune movlw b'00000000' movwf trisa ;define ra1, ra2 e ra3 como entrada e demais ;como saida movlw b'00000000' movwf trisb ;define o portb como saída movlw b'00000000' movwf option_reg ;prescaler 1:32 no tmro movlw b'00000111' ;configura ra3:ra0 com i/o movwf adcon1 ;tmr0 incrementado pelo ciclo de instrucao ;aplica prescaler ao tmr0 ;pull_ups desabiliados ;demais bits irrelevantes movlw b'00000000' ;interrupcoes desabilitadas movwf intcon bank0 ;ativa banco 0 movlw b'00000111' ;configura ra3:ra0 com i/o movwf adcon0 ;************************************************************************************ ; inicializacao das variaveis ;************************************************************************************ clrf porta ;limpa porta clrf portb ;limpa portb clrf temp clrf temp1 clrf temp2 ;************************************************************************************ ; rotina principal ;************************************************************************************ main call delay bsf portb,0 call delay bcf portb,0 goto main ;************************************************************************************ delay movlw .100 movwf temp s1 movlw .32 movwf temp1 s2 movlw .16 movwf temp2 s3 decfsz temp2,f goto s3 decfsz temp1,f goto s2 decfsz temp,f goto s1 return ;************************************************************************************ end ;fim do programa ;************************************************************************************

sou novo no Clube do Hardware quero parabenizar todos que fazem parte deste topico trabalho com eletronica a muitos anos gosto muito mas agora resolvi brincar com os microcontroladores ja faço pisca pisca botao e led domino quase bem as rotinas de delays mas agora me deparei com um problema configurar o oscilador interno para 1mhz do pic 16f818 e estou tomando um coro daqueles ja fiz de tudo nos osccon e osctune e nada alguem poderia por gentileza salvar desde ja agradeço so sei assembly nao consegui aprender c++