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Serial port programming

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marshe1

Technical User
Jul 6, 2000
4
US
I need help on reading and writing to a serial port specifically a <u>PCF8574</u> chip any help would be greatly appreciated.
 
Can anyone help me just reading and writing a Hex value to a serial port?
 
I dont know the details but look into the Peek() and Poke() commands, this is about the only way I know that you can get access to a hardware by Peeking/Poking memory addresses.<br>I dont feel QBasic is adaquate, but I guess it'll work, I mean I've downloaded that demo before that sent a Bach type music to an Ablib compatible card, at either x220 or x240 address, it was hevily using Peeks and Pokes. <p>Karl<br><a href=mailto:kb244@kb244.8m.com>kb244@kb244.8m.com</a><br><a href= </a><br>Experienced in : C++(both VC++ and Borland),VB1(dos) thru VB6, Delphi 3 pro, HTML, Visual InterDev 6(ASP(WebProgramming/Vbscript)<br>
 
See the &quot;Open COM&quot; item in Qbasic help. That should start you in the right direction. If you run into a log-jam, post back and I'll see if I can help you clear it up.<br><br>Finding a solution isn't very rewarding when somebody just hands it to you.<br><br>I hope I pointed you in the right direction without increasing your discouragement. <p> <br><a href=mailto: > </a><br><a href= plain black box</a><br>
 
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