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uncle
Joined: 02 Sep 2004 Posts: 11
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Posted: Thu Sep 02, 2004 5:22 am Post subject: Help JP1 with 9 pin serial D |
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I want to make a JP1 cable for my OFA 8060 but my computer has the 9 pin D serial connector. I know I could buy a converter but as I am making the cable from scratch it may as well be made witha 9 Pun D. Does any one have the instructions or could help me with the alternative connections for a 9 Pin Rather than a 25 pin.
This is my forst post and I am a newbie. Once I am up and running and gained more knowledge I hope to help others.
Uncle |
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Mark Pierson Expert
Joined: 03 Aug 2003 Posts: 3017 Location: Connecticut, USA |
Posted: Thu Sep 02, 2004 5:39 am Post subject: Re: Help JP1 with 9 pin serial D |
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Do you want to build a Simple or serial interface? _________________ Mark |
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uncle
Joined: 02 Sep 2004 Posts: 11
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Posted: Thu Sep 02, 2004 5:52 am Post subject: |
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Simple interface
Is there any advantage for going for anything else |
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Mark Pierson Expert
Joined: 03 Aug 2003 Posts: 3017 Location: Connecticut, USA |
Posted: Thu Sep 02, 2004 5:54 am Post subject: |
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The Simple interface connects to the parallel (printer) port and cannot use a 9-pin connector. That 9-pin connector on your PC is a serial port. _________________ Mark |
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uncle
Joined: 02 Sep 2004 Posts: 11
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Posted: Thu Sep 02, 2004 6:02 am Post subject: |
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That explains it.
I assumed it was a serial interface. That could have been a right Shambles. I am an electronics engineer as well. (What do you mean not a very good one)
I will now build One and repost.
Cheers Mark for replying |
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classicsat
Joined: 20 Feb 2004 Posts: 279
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Posted: Mon Sep 06, 2004 5:23 pm Post subject: |
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Technically it is, but not RS232 serial. The serial communication with the EEPROM chip is doe with what is called "bit banging", which is manually turining bits on and off, and reading the bit status in software. |
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