tools: improve stty-related advices in README
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@ -12,7 +12,7 @@ properly set up, TTY-wise. You'll probably want to do that with `stty`. The tool
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itself takes care of setting the regular stuff (`cs8`, `-parenb`, etc), but you
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itself takes care of setting the regular stuff (`cs8`, `-parenb`, etc), but you
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need to set the speed. Here's an example working on OpenBSD:
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need to set the speed. Here's an example working on OpenBSD:
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$ ( stty 115200 raw ; ./upload - a000 os.bin ) <>/dev/cuaU0
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$ ( stty 115200 raw ; sleep 2 ; ./upload - a000 os.bin ) <> /dev/cuaU0
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To be honest, I'm having a bit of troubles making these tools work as well on
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To be honest, I'm having a bit of troubles making these tools work as well on
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OpenBSD as they do in Linux. But it *does* work. Here are some advices:
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OpenBSD as they do in Linux. But it *does* work. Here are some advices:
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@ -20,6 +20,10 @@ OpenBSD as they do in Linux. But it *does* work. Here are some advices:
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* Use `cuaXX` instead of `ttyXX`.
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* Use `cuaXX` instead of `ttyXX`.
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* Run `cu -l /dev/cuaXX` before running your tool and run a dummy command to
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* Run `cu -l /dev/cuaXX` before running your tool and run a dummy command to
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make sure that the output buffer is flushed.
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make sure that the output buffer is flushed.
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* Use the "raw" option to avoid TTY-processing options to mess with data.
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* If you experience random failures in your command, try inserting a "sleep 2"
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between your "stty" invocation and the command. In my experience, these tend
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to help.
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On Linux, it's generally easier:
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On Linux, it's generally easier:
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