RE: TI-H: Ti Modem
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RE: TI-H: Ti Modem
Christopher Kalos wrote:
> remembering what I just sent involving tcp/ip and ex*nders, if we had it over
> i2c, then we might not have a problem :)
Currently, we do. There are two main reasons for this:
1. Nobody has yet made an I2C expander. The ESF uses its own protocol and
others use the TI protocol. An I2C EEPROM would work, but the biggest one I
know of is only 128kbits, which is 16 kBytes. Not worth the effort.
2. Nobody has yet made a serial port device that connects to the calc via
I2C. In fact, the only serial port hardware around is the TI Graph Link,
that certainly doesn't use I2C but the TI protocol.
-Ozone
> Osma Suominen wrote:
>
>> I'm not saying it's impossible, but there's not much point in it. The
>> calculator has too little RAM to spend to protocols like TCP/IP, PPP, FTP
>> and HTTP. Instead, I'd dial up an ISP with a Unix shell and use Unix
>> through the serial link with the calc as a terminal. I've never used ZTerm,
>> but I think it's VT100 compatible, at least to some extent, so that should
>> work fine (someone said he'd done this).
>
> Oh, and before you suggest using some sort of a memory expander, think
> about where it should be connected...to the link port. And using the TI
> protocol, we can't have two devices in the same port.
>
> -Ozone
>
> --
> *** Osma Suominen *** ozone@clinet.fi *** http://www.clinet.fi/~ozone ***
>
>
--
*** Osma Suominen *** ozone@clinet.fi *ttpww.cnet.fi/~ozne ***
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