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I've used COM3 on several ports at run time. I have to open it, use it, then close it and move on to the next pin. No problems for me as I use the Hardware UART for permanent comm and all my other COMs are just to send instructions out to slave processors. DLC -- -------------------------------- Dennis Clark http://www.techtoystoday.com -------------------------------- <tt> Hello all,<BR> <BR> Has anyone used com3 to talk to more than one serial device on <BR> different pins during run-time?<BR> <BR> For example: You have four devices out there and you have different <BR> serial requirements for each one. Can you reconfigure com3 using <BR> OpenCom3() on the fly using different paramaters? Or, once OpenCom3() <BR> is used, are all other calls to OpenCom3() ignored?<BR> <BR> I saw no documentation on it, except that there is no Close(anything) <BR> anywhere.<BR> <BR> If com3 truly can I/O on only one pair of pins, I can think of <BR> several messy (hardware) ways around this, but is there a good (i.e. <BR> easy) way to do this?<BR> <BR> Thanx for your input().<BR> Daren Hatch<BR> <BR> </tt> <br> <!-- |**|begin egp html banner|**| --> <table border=0 cellspacing=0 cellpadding=2> <tr bgcolor=#FFFFCC> <td align=center><font size="-1" color=#003399><b>Yahoo! Groups Sponsor</b></font></td> </tr> <tr bgcolor=#FFFFFF> <td align=center width=470><table border=0 cellpadding=0 cellspacing=0><tr><td align=center><font face=arial size=-2>ADVERTISEMENT</font><br><a href="http://rd.yahoo.com/M=215002.1954253.3462811.1261774/D=egroupweb/S=1706554 205:HM/A=1000239/R=0/*http://ads.x10.com/?bHlhaG9vaG0xLmRhd=1017688930%3eM=21500 2.1954253.3462811.1261774/D=egroupweb/S=1706554205:HM/A=1000239/R=1" target=_top><img src="http://ads.x10.com/?Z3lhaG9vaG0xLmRhd=1017688930%3eM=215002.1954253.3462811 .1261774/D=egroupweb/S=1706554205:HM/A=1000239/R=2" alt="" width="300" height="250" border="0"></a></td></tr></table></td> </tr> <tr><td><img alt="" width=1 height=1 src="http://us.adserver.yahoo.com/l?M=215002.1954253.3462811.1261774/D=egroupmai l/S=1706554205:HM/A=1000239/rand=956925560"></td></tr> </table> <!-- |**|end egp html banner|**| -- <br> <tt>">Yahoo! Terms of Service</a>.</tt> </br

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Hello all, Has anyone used com3 to talk to more than one serial device on different pins during run-time? For example: You have four devices out there and you have different serial requirements for each one. Can you reconfigure com3 using OpenCom3() on the fly using different paramaters? Or, once OpenCom3() is used, are all other calls to OpenCom3() ignored? I saw no documentation on it, except that there is no Close(anything) anywhere. If com3 truly can I/O on only one pair of pins, I can think of several messy (hardware) ways around this, but is there a good (i.e. easy) way to do this? Thanx for your input(). Daren Hatch

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Yes Daren. I have onb several occassions, used 3 serial LCDs and a serial radio modem ( at a different baud rate) on the same BX24 without any problems. Just reconfigure the com3 as required. Make sure you sort out the incoming and outgoing buffers correctly. For instance if you declare a buffer of one length and open it longer darenhatch wrote: > Hello all, > > Has anyone used com3 to talk to more than one serial device on > different pins during run-time? > > For example: You have four devices out there and you have different > serial requirements for each one. Can you reconfigure com3 using > OpenCom3() on the fly using different paramaters? Or, once OpenCom3() > is used, are all other calls to OpenCom3() ignored? > > I saw no documentation on it, except that there is no Close(anything) > anywhere. > > If com3 truly can I/O on only one pair of pins, I can think of > several messy (hardware) ways around this, but is there a good (i.e. > easy) way to do this? > > Thanx for your input(). > Daren Hatch > Yahoo! Groups Sponsor ADVERTISEMENT > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. , problems will occur!! neil darenhatch wrote: > Hello all, > > Has anyone used com3 to talk to more than one serial device on > different pins during run-time? > > For example: You have four devices out there and you have different > serial requirements for each one. Can you reconfigure com3 using > OpenCom3() on the fly using different paramaters? Or, once OpenCom3() > is used, are all other calls to OpenCom3() ignored? > > I saw no documentation on it, except that there is no Close(anything) > anywhere. > > If com3 truly can I/O on only one pair of pins, I can think of > several messy (hardware) ways around this, but is there a good (i.e. > easy) way to do this? > > Thanx for your input(). > Daren Hatch > Yahoo! Groups Sponsor ADVERTISEMENT > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. [Non-text portions of this message have been removed]

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This is in my MAIN: PUBLIC INBUF(1 To 48) as BYTE 'Serial data in buffer PUBLIC OUTBUF(1 To 32) as BYTE 'Serial data out buffer And I call when needed on-the-fly: 'Opens the Serial Port for use on selected PINS. '8N1 'CALL SetupSerialPort(PORT,BAUD) 'PORT = 1 for PIN(5)-INPUT & PIN(6)-OUTPUT 'PORT = 2 for PIN(7)-INPUT & PIN(8)-OUTPUT 'PORT = 3 for LCD OUTPUT on PIN(10) 'PORT = 4 for Printer Output on PIN(9) PUBLIC SUB SetupSerialPort(ByVAL PORTSET as BYTE, ByVAL BAUD as LONG) SELECT CASE PORTSET CASE 1 CALL PUTPIN(5,bxInputTristate) CALL PUTPIN(6,bxOutputHigh) CALL OpenQueue(InBuf,48) 'Needs 48 min to run CALL OpenQueue(OutBuf,32) CALL DefineCom3(5,6,bx0000_1000) CALL OpenCom(3, BAUD, InBuf, OutBuf) CASE 2 CALL PUTPIN(7,bxInputTristate) CALL PUTPIN(8,bxOutputHigh) CALL OpenQueue(InBuf,48) CALL OpenQueue(OutBuf,32) CALL DefineCom3(7,8,bx0000_1000) CALL OpenCom(3, BAUD, InBuf, OutBuf) CASE 3 CALL PUTPIN(10,bxOutputLow) 'LCD output PIN CALL OpenQueue(INBUF,0) 'no data in CALL OpenQueue(OUTBUF,32) CALL DefineCom3(0,10,bx1000_1000) CALL OpenCom(3, BAUD, InBuf, OutBuf) CASE 4 CALL PUTPIN(9,bxOutPutLow) 'Printer Port output PIN CALL OpenQueue(INBUF,0) CALL OpenQueue(OUTBUF,32) CALL DefineCom3(0,9,bx1000_0111) CALL OpenCom(3, 600, InBuf, OutBuf) END SELECT ENDSUB: END sub -----Original Message----- From: darenhatch [mailto:] Sent: Monday, April 01, 2002 2:22 PM To: Subject: [BasicX] multiple serial outs using com3. Hello all, Has anyone used com3 to talk to more than one serial device on different pins during run-time? For example: You have four devices out there and you have different serial requirements for each one. Can you reconfigure com3 using OpenCom3() on the fly using different paramaters? Or, once OpenCom3() is used, are all other calls to OpenCom3() ignored? I saw no documentation on it, except that there is no Close(anything) anywhere. If com3 truly can I/O on only one pair of pins, I can think of several messy (hardware) ways around this, but is there a good (i.e. easy) way to do this? Thanx for your input(). Daren Hatch

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Hello again. Thank you all very much for the info. Really appreciate it. Your code clarify things a lot. You guys be da best! Daren Hatch --- In basicx@y..., "James R. Parish" <wiz@a...> wrote: > This is in my MAIN: > PUBLIC INBUF(1 To 48) as BYTE 'Serial data in buffer > PUBLIC OUTBUF(1 To 32) as BYTE 'Serial data out buffer > > And I call when needed on-the-fly: > > 'Opens the Serial Port for use on selected PINS. > '8N1 > 'CALL SetupSerialPort(PORT,BAUD) > 'PORT = 1 for PIN(5)-INPUT & PIN(6)-OUTPUT > 'PORT = 2 for PIN(7)-INPUT & PIN(8)-OUTPUT > 'PORT = 3 for LCD OUTPUT on PIN(10) > 'PORT = 4 for Printer Output on PIN(9) > > PUBLIC SUB SetupSerialPort(ByVAL PORTSET as BYTE, ByVAL BAUD as LONG) > SELECT CASE PORTSET > CASE 1 > CALL PUTPIN(5,bxInputTristate) > CALL PUTPIN(6,bxOutputHigh) > CALL OpenQueue(InBuf,48) 'Needs 48 min to run > CALL OpenQueue(OutBuf,32) > CALL DefineCom3(5,6,bx0000_1000) > CALL OpenCom(3, BAUD, InBuf, OutBuf) > CASE 2 > CALL PUTPIN(7,bxInputTristate) > CALL PUTPIN(8,bxOutputHigh) > CALL OpenQueue(InBuf,48) > CALL OpenQueue(OutBuf,32) > CALL DefineCom3(7,8,bx0000_1000) > CALL OpenCom(3, BAUD, InBuf, OutBuf) > CASE 3 > CALL PUTPIN(10,bxOutputLow) 'LCD output PIN > CALL OpenQueue(INBUF,0) 'no data in > CALL OpenQueue(OUTBUF,32) > CALL DefineCom3(0,10,bx1000_1000) > CALL OpenCom(3, BAUD, InBuf, OutBuf) > CASE 4 > CALL PUTPIN(9,bxOutPutLow) 'Printer Port output PIN > CALL OpenQueue(INBUF,0) > CALL OpenQueue(OUTBUF,32) > CALL DefineCom3(0,9,bx1000_0111) > CALL OpenCom(3, 600, InBuf, OutBuf) > END SELECT > > ENDSUB: > END sub > > -----Original Message----- > From: darenhatch [mailto:darenhatch@y...] > Sent: Monday, April 01, 2002 2:22 PM > To: basicx@y... > Subject: [BasicX] multiple serial outs using com3. > > Hello all, > > Has anyone used com3 to talk to more than one serial device on > different pins during run-time? > > For example: You have four devices out there and you have different > serial requirements for each one. Can you reconfigure com3 using > OpenCom3() on the fly using different paramaters? Or, once OpenCom3 () > is used, are all other calls to OpenCom3() ignored? > > I saw no documentation on it, except that there is no Close (anything) > anywhere. > > If com3 truly can I/O on only one pair of pins, I can think of > several messy (hardware) ways around this, but is there a good (i.e. > easy) way to do this? > > Thanx for your input(). > Daren Hatch

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