I give up-help with Mac/Z-term

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Joined: Mar 20 2005
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My painence is starting to wane a bit for my Replica 1 project and I could use some help. I'm trying to use Z-Term on my powerbook with a Keyspan USA-19 USB to Serial adapter in order to connect with the Replica 1. Since I do not own a windows machine, I am unable to use the step by step directions that came with the R1, but I know there must be someone out there that has solved this, and could give me a detailed solution.

I'm running Mac OS 10.4 on a 1.67 Ghz 17in PBook with Bluetooth. I purchased and downloaded Z-term 1.1 beta 7. The serial cable is good and was used 3 moths ago to download code to a BS2.

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gobabushka's picture
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even though you don't own a w

even though you don't own a windows machine, you should check the step by step directions and make sure the settings match those in z-term (under settings->connection) good luck!

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Yes, got that far..

I did set up Z-Term to match the hyperterm settings such as baud, bit, speed and the like.

I suspect it is an issue with Mac OS 10.4 not porting to my adpater. If there is anybody that has a Mac OS X connected to their replica 1 please let me know. Tom?

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Joined: Dec 20 2003
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What type of cable are you us

What type of cable are you using with the Mac? With the Mac you need a null-modem cable. Also, I hear the USB-serial converters don't always work like they should.

Vince

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Straight Serial cable

Good afternoon Vince,

I am using a serial cable that came from my Parallax Developers Kit and a Keyspan USA-19 USB to Serial Adapter. The adapter is reportably the one that is fully supported with Mac OS 10 and should work to that end.

I didn't try the null modem (for whatever reason I though that was considered a bad idea) but I think I have a null modem adapter somewhere to fit it. I'll give it a try and get back to you via this post.

gobabushka's picture
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the reason that you cant get

the reason that you cant get communications is that probably that cable you are using is not null modem, so your terminal program wont work. on a null modem cable, the tx and rx lines are swaped, like a crossover cable.

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Yes

Roger that. Vince has suggested using a null modem cable.

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Well....

No luck with the null modem.

When I'm in Z-term there doesn't seem to be a way to select a port other than the 2 bluetooth and 1 modem lines. I have a gut feeling it has to do with the adapter not being reconized as a serial port with Z-term but I wouldn't know where to start fixing this.

Tom Owad, didn't you use a mac and a keyspan adpater to communicate with your Apple 1? Anybody else use a modern macintosh to connect to the replica 1?

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Joined: Mar 20 2005
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Yeah! It works!

Short version: I got the Z-term/USA-19 adpater combo to work with my Powerbook.

1. I needed the updated Mac OS X driver (v2.0) and have it installed.
2. After much head scratching I discovered that the all caps needed to be on in order to send the required ascii characters.
3. No null modem. Works as a proper terminal.
4. In Z-term I set up the baud to 2400, but changed the character and line delays to 2 and 20 respectfully to get a better transfer rate.
5. QuickTerm also works but I was unable to cut and paste the programs into the terminal screen.
6. With some tinkering, I was able to get the adapter to work using Hyperterm through my Virtual PC connection. As expected, the connection was slow and staying connected to the USB adapter hit and miss.

Anyway, thanks for all the help Vince. Had you not sent me that link to resman post I won't have though to look for an updated driver.

Aaron

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LOL, I remember when I first

LOL, I remember when I first developed the serial interface. I thought it didn't work right because I didn't have capslock on. That gets a few people. Good job sticking with it.

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Hi Aaron, Sorry I didn't r

Hi Aaron,

Sorry I didn't reply sooner, but I just got back from vacation this evening. I'm glad to hear you got it working.

Tom

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