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Re: RXTX Communication API javadocs

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On 6/29/2014 11:41, Martin Gregorie wrote:
> On Sat, 28 Jun 2014 20:18:25 -0700, Knute Johnson wrote:
>
>> On 6/28/2014 15:12, Martin Gregorie wrote:
>>> On Sat, 28 Jun 2014 13:45:17 -0700, ookachaka wrote:
>>>
>>>> On Sunday, February 15, 2009 9:46:50 PM UTC-8, Chanchal wrote:
>>>>> Hello All,
>>>>>
>>>>> Anyone having link to javadocs of RXTX Communication API, kindly
>>>>> share.
>>>>>
>>>>> Thanks and Regards
>>>>>
>>>>> Chanchal
>>>>
>>>> Yes, there's something wrong (in my case).
>>>> The fril javadocs are not downloadable.
>>>
>>> RXTX appears to be fairly close to abandonware at present. The rxtx.org
>>> host doesn't respond to HTTP requests or pinging. The domain is
>>> registered by Godaddy until December, but ownership details just show
>>> Domains by Proxy. There is a Sourceforge project but it has no files
>>> and there is an Android port too.
>>>
>>> The sources for Windows, IOS and Linux can be found at
>>> http://rxtx.sourcearchive.com/
>>>
>>> RXTX may be a Java class library, but there is evidently a healthy
>>> amount of native code needed to interface the RxTx package to the
>>> underlying OS,
>>> primarily because serial i/o is anything but standardised outside the
>>> POSIX world.
>>>
>>> I think your best bet may be to grab the source tarball from
>>> rxtx.sourcearchive.com, see what documentation there is in the tarball
>>> and then feed the Java source through javadocs.
>>>
>>> It is possibly a bad sign that I couldn't find either a build.xml (for
>>> Ant) or a Makefile (for the C sources) in the published file list. I
>>> have no idea what, if any, C documentation tool, should be used: you
>>> might like to try Cdoc since I wrote it to do sensible things if you
>>> point it at vanilla C.
>>>
>>> Good luck.
>>>
>>>
>> If he is using any of the new Windows (Vista, 7 or 8) I would forget
>> serial IO and use some sort of conversion device.  I've used a couple
>> that interface through TCP/IP and I know there are USB to serial devices
>> available.  If he is developing for XP then the old Sun javax.comm
>> package is the way to go.  It works pretty well and didn't have the bugs
>> that RXTX had.  The Sun software has been unsupported for years but I
>> know it still works just fine on XP.
>
> Some of the USB to serial adapters are a bit choosy or, I should say,
> some applications can be choosy about the adapters they will talk to.
> I've had good results with the unit that pfranc sold some years ago when
> connecting to it from native C programs running under Linux, but Win95
> apps running on Linux under Wine didn't want to know, even though they
> worked just fine over a multi-port serial adapter card. I put that down
> to the total lack of serial support provided by DOS or Windows 95 or
> earlier. These simply let you access to bare metal UART, which I did via
> a third party serial i/o library (Willies Software's COMM-DRV) but I
> don't know how that would have interacted with a USB adapter and have no
> idea what code the aforementioned applications I tried under Wine used
> for serial access or where they got it from.
>
> Another possibility would be to use an Ethernet to serial converter such
> as:
> - Lantronix Xport -http://gridconnect.com/network-components/xport.html
> - NEMO10 - http://kanda.com/products/Sena/NEMO10.html
> - LSHM-200 - http://www.radi.com/modular64.htm
>
> These are all component-level devices that would need to be mounted and
> connected to the UART and a power supply. Or, you can find commodity
> adapters on eBay among other sources: they are typically a plastic case
> with an RJ-45 socket in one end and a D-9 serial connector in the other.
>
> IMO these are a better bet than USB adapters because Java has built-in
> TCP/IP support but probably can't talk to a USB<->serial adapter at a low
> enough level to set baud rate, parity and stop bits correctly. The
> Ethernet to serial converter module takes care of this because it
> connects locally a UART and takes care of configuring itself to talk to
> the serial port (UART): some can be hard-wired while others are
> configured with a web browser and keep the configuration in flash memory.
>
>

We used a Moxa NPort 5400 on our last project that needed serial IO.  It 
is connected via TCP/IP and configured with a browser.  It has worked 
flawlessly.  They are rather expensive however but if you need the job 
done they work great.

-- 

Knute Johnson

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Re: RXTX Communication API javadocs ookachaka@gmail.com - 2014-06-28 13:45 -0700
  Re: RXTX Communication API javadocs Martin Gregorie <martin@address-in-sig.invalid> - 2014-06-28 22:12 +0000
    Re: RXTX Communication API javadocs Knute Johnson <eternal@knutejohnson.com> - 2014-06-28 20:18 -0700
      Re: RXTX Communication API javadocs Martin Gregorie <martin@address-in-sig.invalid> - 2014-06-29 18:41 +0000
        Re: RXTX Communication API javadocs Knute Johnson <eternal@knutejohnson.com> - 2014-06-29 20:59 -0700
          Re: RXTX Communication API javadocs Martin Gregorie <martin@address-in-sig.invalid> - 2014-06-30 11:16 +0000

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