I wrote a program that communicates using the internal modem on various macs - I tested on older iMacs, blue G3 tower, G4 powerbook, and now some of the latest G4 towers.
Everything seems to work pretty well, EXCEPT on some of the latest modems! For example, on the new G4 towers.
The communications are low speed (300/1200/2400), and work at 7/E/1 generally, as opposed to the normal 8/N/1.
On some G4 towers, I cant seem to even talk to the modem at 7 bits.
The communications works, but the data I get back when receiving is corrupt - its like the bits are off somewhere, but this same code works like a champ on a different mac/modem.
Note that ZTerm seems to be magical, and has NO problem. This is what really baffles me. I have tried several different ways to communicate with the modem - terminal programs, code in C, 4th Dimension plug-ins (thats what I am writing my app in), and they all have the problem except zterm!
I know this is pretty hard for people to offer help, but some things I want to know --
1 - Are there any flash updates for the internal modem for the newer G4 towers?
2 - Are there any driver updates for those modems in OS X?
3 - Is there some way to change to use a different driver in the OS, or different settings - like how do you configure the modem in the OS (if you can)?
4 - Has anyone out there ever tried and had issues using mac modems at 7 bits / even parity? Or maybe had no problem?
5 - What is zterm doing special??
As much information as you can provide is greatly appreciated.
Everything seems to work pretty well, EXCEPT on some of the latest modems! For example, on the new G4 towers.
The communications are low speed (300/1200/2400), and work at 7/E/1 generally, as opposed to the normal 8/N/1.
On some G4 towers, I cant seem to even talk to the modem at 7 bits.
The communications works, but the data I get back when receiving is corrupt - its like the bits are off somewhere, but this same code works like a champ on a different mac/modem.
Note that ZTerm seems to be magical, and has NO problem. This is what really baffles me. I have tried several different ways to communicate with the modem - terminal programs, code in C, 4th Dimension plug-ins (thats what I am writing my app in), and they all have the problem except zterm!
I know this is pretty hard for people to offer help, but some things I want to know --
1 - Are there any flash updates for the internal modem for the newer G4 towers?
2 - Are there any driver updates for those modems in OS X?
3 - Is there some way to change to use a different driver in the OS, or different settings - like how do you configure the modem in the OS (if you can)?
4 - Has anyone out there ever tried and had issues using mac modems at 7 bits / even parity? Or maybe had no problem?
5 - What is zterm doing special??
As much information as you can provide is greatly appreciated.
