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Re: RXTX Communication API javadocs

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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.


-- 
martin@   | Martin Gregorie
gregorie. | Essex, UK
org       |

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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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