Jump to content
fimbulvetr

IIc and WiModem232

Recommended Posts

I am not having much luck getting my new WiModem232 to initialize with my Apple IIc . I’m using pro term 3.1, and am following the manual and these instructions

https://www.cbmstuff.com/forum/showthread.php?tid=477

300 baud - Apple 300 baud driver
Init string - ATX1&C0&S1

 

But no luck, ProTerm gets stuck at “initializing modem”

 

Anyone know how to get one of these things working on a IIc?

Share this post


Link to post
Share on other sites

I'd use a one of the Hayes modem drivers, and make the init string blank.  Once you get in, hit option-t (closed apple-t) to get into terminal mode and see if you can issue some at commands.  Make sure that your baud rate in your Online Parameters match your modem settings.

  • Like 1

Share this post


Link to post
Share on other sites

modem still won’t initialize. I’m staring to wonder about the modem cable I bought. Does anyone have a pinout for a IIc modem cable?

Share this post


Link to post
Share on other sites

Not off hand, but you'll probably have to hold up handshaking on the IIc end... DSR off hand... but I don't have any info I can check with in front of me.  Only other word of warning, I find the wi-modems great, but slow to come online when powered up, so make sure its been on for a bit before you decide you can't talk to it at all. I'd either try a Hayes driver or even just Null driver..

 

A

  • Like 1

Share this post


Link to post
Share on other sites
7 hours ago, fimbulvetr said:

modem still won’t initialize. I’m staring to wonder about the modem cable I bought. Does anyone have a pinout for a IIc modem cable?

Were you able to get to this screen?  If so, just go to Online and try your AT commands with different baud settings.  If not, I'd try another copy of ProTERM 3.1 - there are a lot of bad ones out there...

 

1445378518_ScreenShot2020-07-06at7_08_24AM.thumb.png.2ecaf6047da882a91cbd42b5fa79d22c.png

  • Like 1

Share this post


Link to post
Share on other sites

Nope, it hangs at this screen. Maybe I am underestimating how long it takes to try initializing... I’ve let it sit for as long as 15 minutes before giving up.

 

 

1FBBE3F8-4E92-4447-ABF7-E7D2EACEEDFA.jpeg

Share this post


Link to post
Share on other sites

I'm getting "no bootable device" from that copy.

 

I tried a couple different versions of ProTerm, including 2.0 and 1.9, but still get the same thing where it hangs up on initializing the modem. It hangs even if the modem is unplugged. I never get a message that ProTerm was unable to initialize the modem. 

Share this post


Link to post
Share on other sites

Try booting up Preterm 3.1 with no modem connected.

If this is the first time that you are using it, make sure that your WiModem is properly initialized and at 300 baud.  Do a factory reset procedure if possible.

 

Having no modem connected might fool ProTerm into moving on to the next step.

If it gets to the screen that Byte Knight showed you then hit the right arrow to go online, then press Return.

Then you may need to press closed-apple-T to force ProTerm to go "online".  Or press open-apple-L and it will give you a screen where you can force the baud rate and the "online" status.

 

Connect your WiModem to the serial port at this point.

If you get that far you should be able to type in AT commands at 300 baud, change the baud rate to a more reasonable 9600 baud, and connect to your WiFi network.

Then you should press open-apple-I to "install" Preterm with proper settings.  I usually use "generic 9600 baud modem".

 

 

  • Like 1

Share this post


Link to post
Share on other sites
Posted (edited)

Might be the port rate :) Didn't think about that... a lot of the wimodems default to 1200... although you can crank it up as far as your hardware will cope with.

IS proterm set up for your IIc? Might pay to do the install regime.  Otherwise go online and try different baud rate...

 

Edited by Aunty Entity
  • Like 1

Share this post


Link to post
Share on other sites

I did the install, and I checked my cable to make sure it was the right one, but I am still having issues. I am starting to wonder if there is something wrong with the modem port on the IIc.

Share this post


Link to post
Share on other sites

If it is the modem port, switch to the printer port and try it there.

You can set ProTerm to use the printer port.

 

 

Share this post


Link to post
Share on other sites
On 7/10/2020 at 2:46 AM, fimbulvetr said:

I did the install, and I checked my cable to make sure it was the right one, but I am still having issues. I am starting to wonder if there is something wrong with the modem port on the IIc.

Well it is possible... some versions of the IIc do have ordinary serial ports... with speed issues... If you want to test it though, the simplest and most telling test is to just try a loop back test.  It just requires you to short the TX and RX pins in the serial cable or port and try typing... if you get echo's of what you're typing then the serial port is doing something as they characters are going out the TX line and coming straight back in the RX line...

I'd probably set the system to use a null modem with no init string.  This'll skip all the initialisation malarky, just go to "online" mode and try a few different port rates...

Share this post


Link to post
Share on other sites

Ends up it was a hardware problem after all. I picked up another IIc, plugged in the modem, fired up ProTerm and it worked immediately. Oh well. Thanks for the help everyone!

  • Like 1

Share this post


Link to post
Share on other sites

Chuckle, at least it worked out well... I forget if the early IIc problem was a rom issue, or a port hardware issue... but they certainly did have some foibles, and of course someone might have blown it up in the interim. :)

 

Share this post


Link to post
Share on other sites

The one that doesn’t work is one of the later versions, with ROM 3, while the one that does work is from the first year of production with ROM 255. I’m guessing the broken one has a bad serial port chip or something like that, as everything but the two serial ports seems to work fine. I never would have known it had a problem if I hadn’t tried to connect a modem. 

 

  • Thanks 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...