Comments (4)
Hello! Thanks for contacting me. So, let's start with the basics:
- What version of the firmware are you running? (You can get that in CCGMS by entering ATI)
- What version does the configure program report at the top?
It certainly does sound like there is a 1200 baud timing issue. That is a known bug in the C64 kernal. However, my dadgum programs are supposed to fix that on line 30 of the configure program. The C128 kernal, however, does NOT have this issue, so it's confusing that you see it there also. Very confusing. In C128 mode, you are using your computers built in kernal timing.
Which gives me an idea for another thing or two to try.
Thing 1: Reset your computer to C128 mode. Load Configure. Instead of entering RUN, enter:
RUN 50000
Now start typing AT and pressing enter. It should respond with OK. Enter ATI and press enter. You'll get the little intro message. All this is to test whether basic 1200 baud support is working in the stock C128 kernal.
Thing 2: Reset your computer to c128 mode. Load configure. Now change the following line by re-entering it:
209 IFCT<10THENGOSUB900:PRINTP$:IFP$<>"ok"THENCT=CT+1:GOTO207
(the only change is adding printp$: )
Now enter RUN. You will probably get the same error, but at least you might also get some feedback on what the modem is responding with.
from zimodem.
Hi Bo,
Thanks for getting back to me!
- What version of the firmware are you running? (You can get that in CCGMS by entering ATI)
ATI in CCGMS tells me its version 3.3
- What version does the configure program report at the top?
Configure tells me it is version 1.4
After that I reset my computer into C128 mode (power cycle actually) and did the other two checks.
Thing 1: No response from AT or ATI at all.
Thing 2:
Same error "Initializing Modem...Initialization failed. Is your modem set to 1200b? Break in 220" and nothing else. Checked it twice and 2nd time I also added a PRINT CT. That also did not give any insights. It like P$ and CT were printed completely empty.
from zimodem.
One thing I want to add and not sure if it is relevant. In CCGMS I have to configure the modem to UP9600 / EZ232. It does not work when I chose any of the other types (e.g. Userport 300 - 2400) and I have built it by using these instructions: https://www.c64-wiki.de/wiki/Wifi-Adapter
from zimodem.
Ah, well, that cleared up everything. I thought you were using a C64Net WiFi modem...
The C128 user port lines used for UP9600 conflict with the certain serial IEC lines. This creates problems. Frankly, I'm surprised your computer will boot with UP9600 hardware in a C128. Mine doesn't (IEC locks up), which is why our modem has a switch to disable UP9600 for C128s.
Anyway, it also explains why the little simple BASIC term program at RUN 50000 doesn't work. That little 4-5 line routine uses the stock C128 kernal from Commodore, which these programs also rely on (mostly).
So, if you plan to use this on a C128, my recommendation is to clip the UP9600 lines. Since I know a bit more about your hardware, I'd also recommend hooking up pin H (DCD) to pin D2 on the ESP, instead of pin K. It will make the programs you are trying to run work more correctly, and also allow you to run BBS programs.
from zimodem.
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from zimodem.