Serial QPC to QL
Re: Serial QPC to QL
I think "terminal program" is a good keyword here. And preferably something that uses checksumed blocks for data transfer, like X-Modem or Kermit. Standard QL serial comms is so unreliable that without that you'll likely become desparate.
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Re: Serial QPC to QL
Thank you guys,
Further notes...
I have no Hermes, only mod is tk2 Minerva
I have no way to put a program on the QL except serial.
Both mdvs work, and I have some blank carts.
You have given me somethings to try. Will report later.
Further notes...
I have no Hermes, only mod is tk2 Minerva
I have no way to put a program on the QL except serial.
Both mdvs work, and I have some blank carts.
You have given me somethings to try. Will report later.
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And beyond it, the deep blue air, that shows
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And beyond it, the deep blue air, that shows
Nothing, and is nowhere, and is endless.
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- Aurora
- Posts: 946
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Re: Serial QPC to QL
Hi
Just start with Martin's suggestion below - copy directly with COPY 'ser1hz' to 'con_' on the QL to avoid latency waiting for tokenisation - and get a clearer idea of precisely how many characters arrive successfully before things 'hang' (and the
I might suspect your USB to Serial adapter on the host PC were it not for the fact that you've been successful connecting to the Z88 in the past - I myself have had trouble with a number of such adapters in the past which just didn't sufficiently meet the RS232 standards.
If you're likely to need this sort of PC/Emulator to QL connection more in the future, I'd really suggest you take the plunge and build a QLUB Adapter
Just start with Martin's suggestion below - copy directly with COPY 'ser1hz' to 'con_' on the QL to avoid latency waiting for tokenisation - and get a clearer idea of precisely how many characters arrive successfully before things 'hang' (and the
I might suspect your USB to Serial adapter on the host PC were it not for the fact that you've been successful connecting to the Z88 in the past - I myself have had trouble with a number of such adapters in the past which just didn't sufficiently meet the RS232 standards.
If you're likely to need this sort of PC/Emulator to QL connection more in the future, I'd really suggest you take the plunge and build a QLUB Adapter
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- Aurora
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Re: Serial QPC to QL
I'm not too sure about this. But I think when the QL goes busy, It expects the sender to stop immediately. If any more data arrives, you get problems.
I don't know if your USB to serial adaptor has any kind of congifuration program. But if it does, look for something that stops transmission as soon as the receiver goes busy. I don't know what it might be called.
I don't know if your USB to serial adaptor has any kind of congifuration program. But if it does, look for something that stops transmission as soon as the receiver goes busy. I don't know what it might be called.
Re: Serial QPC to QL
Using the copy to CON idea, it seems that it is getting stuck at the buffer.
Which is about line 88 in the original code I was trying to copy
The buffering appears to be pretty visible using this method, even when copying a file on the harddrive to CON.
(I have just received a qubide, which opens up my options considerably.)
Which is about line 88 in the original code I was trying to copy
The buffering appears to be pretty visible using this method, even when copying a file on the harddrive to CON.
(I have just received a qubide, which opens up my options considerably.)
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And beyond it, the deep blue air, that shows
Nothing, and is nowhere, and is endless.
https://jbizzel.itch.io/
And beyond it, the deep blue air, that shows
Nothing, and is nowhere, and is endless.
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- janbredenbeek
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Re: Serial QPC to QL
Hi Jbizzel,
It's best to install the RAM disk driver and copy to ram1_ first, then to storage media.
The QL cannot handle serial and storage I/O at the same time, and serial buffering is limited to just 81 bytes. The con_ driver is also quite slow.
For reliable transfers you can use SERnet or QTPI terminal emulator with Zmodem transfer.
It's best to install the RAM disk driver and copy to ram1_ first, then to storage media.
The QL cannot handle serial and storage I/O at the same time, and serial buffering is limited to just 81 bytes. The con_ driver is also quite slow.
For reliable transfers you can use SERnet or QTPI terminal emulator with Zmodem transfer.
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- Aurora
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- Joined: Sat Oct 25, 2014 9:53 am
Re: Serial QPC to QL
Hi again Jbizzel!
And how many characters would you say those 88 lines represent?
Re: Serial QPC to QL
Hi Martin,
it happens to be....
1986.
it happens to be....
1986.
__________________
And beyond it, the deep blue air, that shows
Nothing, and is nowhere, and is endless.
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And beyond it, the deep blue air, that shows
Nothing, and is nowhere, and is endless.
https://jbizzel.itch.io/