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Posted By

JimDrew
on 2019-10-13
20:03:27
 Re: C16 Expansion Port to User Port

[quote]
Re: C16 Expansion Port to User Port
I have a WiModem and apart from the power problems* it works with the plus/4. I've tried it but couldn't find a proper terminal emulator to use it.

* the WiModem draws too much current in quick short pulses on the 5V and perhaps my power supply is getting old but it makes the screen flashing - that's why it needs the modification to use external power supply. This problem is not plus/4 specific, the C64Reloaded Mk2 has the same problem.
[/quote]

That is not correct. The problem with the C64Reloaded Mk2 is the 8701 emulation circuitry. It is too sensitive to changes on the 5v rail. This is not a problem with a real C64 or C64Reloaded Mk1 with a real 8701 chip.

For a C16 you can either make a USER PORT, like what the C64 has and use the WiModem. Or you can use a RS-232 cartridge and use the WiModem232. A lot of people are doing the later.



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