The serial device has to read the command, parse it, figure it Time), in my box, I send it a command, asking for a specific piece ofĭata. Unlike your box (sounds like data comes out all the I think that currently my limitation is in my Satisfaction of a cardiologist with this setup. I am able to display an ECG heart rhythm in real time to the By pausing for 250ms between ReadAll calls, you may find that you get your data is a more useful manner while reducing your CPU load.ĭon't bother expecting complete packets I do packet reassembly on theįly to ensure I get what I want and if there is stuff left over it
XOJO SERIAL FULL
I think your issue is that you're potentially poll TOO fast and you're having to make more drinks at the well, so to speak, to get a full bucket. Oh, I may be confusing your polling with the rate at which I do readall to append the string until I get a complete word. I have numerical data to display on a "panel meter" so I'm querying the device continuously.
Hmmm, I think I'm doing faster than that (but I gotta check) and I'm at 38K. Of course, you could reduce that if you need higher granularity. Why do you only poll 4 times per second? I assume you are not in a big rush to get the word?ġ/4 sec resolution is pretty good - even at 115K - for keeping a serial port healthy and the UI components updated. Why do you only poll 4 times per second? I assume you are not in a big But I'll keep this piece around if you don't I am doing something that looks similar I just use the DataAvailableĮvent to trigger this. SerLine = serLine + ReplaceLineEndings(ConvertEncodings(theSerialPort.ReadAll, Encodings.UTF8), EndOfLine) Thanks to much input from many helpful users on the list, I use a mechanism like this in a thread (Priority 1) and ignore the DataAvailable event: It fires as data becomes available (and sometimes you need to "nudge" it with a serial.Poll), but there are no guarantees that the data that's in the buffer will be a complete word or line of text. If one calls serial.ReadAll on DataAvailable, can one expect to get the whole word? Does it fire as the very first byte appear into the serial buffer? Does it fire when it sees an EndOfLine character? Does it fire again as bytes continue to appear one-by-one at the serial port?
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