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Interface Hardware Software

PROTOBOARD. Interface Hardware Software. Aula Prática 4. Monitoria Bruno Otávio – bopp@cin.ufpe.br Marília Litwak – mln2@cin.ufpe.br José Olino – joclj@cin.ufpe.br Victor Alencar – vba@cin.ufpe.br. PROTOBOARD - Teclas e LED’s. Possui x Teclas e y LED’s

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Interface Hardware Software

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  1. PROTOBOARD Interface Hardware Software Aula Prática 4 Monitoria Bruno Otávio – bopp@cin.ufpe.brMarília Litwak – mln2@cin.ufpe.brJosé Olino – joclj@cin.ufpe.brVictor Alencar – vba@cin.ufpe.br

  2. PROTOBOARD - Teclas e LED’s • Possui x Teclas e y LED’s • A comunicação se dá pela porta paralela • Leitura(in): porta 379h • Escrita(out): porta 378h • Altera-se os LED’s escrevendo-se na porta 378h Teclas LED’s A B C D L1 L2L3 L4

  3. Comunicando Hw-Sw… • Só serão utilizados as 4 teclas e 4 LED’s mais à esquerda, devido a problemas na protoboard do CIn. • Exemplo de leitura e escrita na proto… mov al, 0 mov dx, 378h out dx, al mov dx, 379h in al, dx mov cl, 4 shr al, cl mov al, 1111b mov dx, 378h out dx, al Apaga os LED’s Copia as indicações on/off das teclas p/ AL Acende os 4 LED’s mais à esquerda

  4. Exercício A B C D L1 L2L3 L4 http://www.cin.ufpe.br/~vba/archives/ihs/pratica-4/exercicio.html

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