I put pullup and pulldown with 4k7 and I put 1k between A and B lines. It didn't work. I will try it in real simulation now. Hope it works. Thanks. 24 Haziran 2009 13:09 tarihinde Dario Greggio yazd=FD: > Yusuf =D6zkay ha scritto: > > I am doing simulation at proteus and i didn't connect pullups to the A > and B > > lines.I have connected pullup only to the RX pins. Is =FEt necessary at > > simulation? > > > Oh well, i don't know: but, without them, A and B will float and the > receiver will get "spurious bytes" thus causing the RX errors... > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist