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I am using a BX-24 in the following configuration: PC Com Port<--RS485--> RS485/TTL converter <--TTL--> BX-24 <--TTL---> Equipment to control I do this to convert a serial protocol to another one the Equipment understands. The BX-24 is used to receive serial commands on 2 pins, decode the protocol and convert it, send the result through 2 other pins. Up to now, I have been using a do loop and subs to take care of everything. Unfortunately, this does not allow me to keep the 2 Com queues open at the same time and I sometimes lose some input commands. I would like to use the multitasking advantage of BX-24 and run one task to buffer the serial input from PC, one task to decode and convert the inputs, one task to send the commands. The big hurdle I am facing is to keep the two coms open at the same time on the BX-24. Anybody has experience doing it ? A general example would be appreciated. Thank you. Philippe Vous manquez d’espace pour stocker vos mails ? Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com

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The BasicX is able to have both Coms open and available. Note that Com3 is a software com port. It works as long as Timer1 isn't used by another function. The conflicts are detailed in the Operating System PDF. Often, queue size and com setup seem to be my biggest bugaboos. Some sample code of serial communication is available with the download. I refer to that when I have communication troubles. Hope that helps, Thad --- Philippe DAROUX <> wrote: > I am using a BX-24 in the following configuration: > PC Com Port<--RS485--> RS485/TTL converter <--TTL--> > BX-24 <--TTL---> Equipment to control > > I do this to convert a serial protocol to another > one > the Equipment understands. > > The BX-24 is used to receive serial commands on 2 > pins, decode the protocol and convert it, send the > result through 2 other pins. > > Up to now, I have been using a do loop and subs to > take care of everything. Unfortunately, this does > not > allow me to keep the 2 Com queues open at the same > time and I sometimes lose some input commands. > > I would like to use the multitasking advantage of > BX-24 and run one task to buffer the serial input > from > PC, one task to decode and convert the inputs, one > task to send the commands. > > The big hurdle I am facing is to keep the two coms > open at the same time on the BX-24. Anybody has > experience doing it ? A general example would be > appreciated. > > Thank you. > > Philippe > > Vous manquez d’espace pour stocker vos mails ? > Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! > Créez votre Yahoo! Mail sur > http://fr.benefits.yahoo.com/ > > Le nouveau Yahoo! Messenger est arrivé ! Découvrez > toutes les nouveautés pour dialoguer instantanément > avec vos amis. A télécharger gratuitement sur > http://fr.messenger.yahoo.com __________________________________________________ ">http://mail.yahoo.com

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Thad, apparently, I managed to open 2 com ports at the same time. Thank you. However, for multitasking, I tried the following simple program: Option Explicit ' ======= Module Variables Definition ====================================== Dim StackSerialInput(1 to 48) as Byte ' Stack for Serial Input Task Dim StackTTLOutput(1 to 48) as Byte ' Stack for TTL Output Task ' ======= Main Program ===================================================== Public Sub Main() callTask "SerialInputTask", StackSerialInput callTask "TTLOutputTask", StackTTLOutput Do debug.print "1" Call sleep(120.0) Loop End Sub Public Sub SerialInputTask() do debug.print "2" call sleep(0.0) loop End Sub Public Sub TTLOutputTask() do debug.print "3" call sleep(0.0) loop End Sub and all it gives me back in the monitor windows are some 2s. 3 appears the first time and 1 never appears. Am I doing something wrong ? Thank you. Philippe --- Thad Larson <> a écrit : > The BasicX is able to have both Coms open and > available. > > Note that Com3 is a software com port. It works as > long as Timer1 isn't used by another function. The > conflicts are detailed in the Operating System PDF. > > Often, queue size and com setup seem to be my > biggest > bugaboos. Some sample code of serial communication > is > available with the download. I refer to that when I > have communication troubles. > > Hope that helps, > Thad > > --- Philippe DAROUX <> wrote: > > I am using a BX-24 in the following configuration: > > PC Com Port<--RS485--> RS485/TTL converter > <--TTL--> > > BX-24 <--TTL---> Equipment to control > > > > I do this to convert a serial protocol to another > > one > > the Equipment understands. > > > > The BX-24 is used to receive serial commands on 2 > > pins, decode the protocol and convert it, send the > > result through 2 other pins. > > > > Up to now, I have been using a do loop and subs to > > take care of everything. Unfortunately, this does > > not > > allow me to keep the 2 Com queues open at the same > > time and I sometimes lose some input commands. > > > > I would like to use the multitasking advantage of > > BX-24 and run one task to buffer the serial input > > from > > PC, one task to decode and convert the inputs, one > > task to send the commands. > > > > The big hurdle I am facing is to keep the two coms > > open at the same time on the BX-24. Anybody has > > experience doing it ? A general example would be > > appreciated. > > > > Thank you. > > > > Philippe > > > > > > > > > > > > > > Vous manquez d’espace pour stocker vos mails ? > > Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! > > Créez votre Yahoo! Mail sur > > http://fr.benefits.yahoo.com/ > > > > Le nouveau Yahoo! Messenger est arrivé ! Découvrez > > toutes les nouveautés pour dialoguer > instantanément > > avec vos amis. A télécharger gratuitement sur > > http://fr.messenger.yahoo.com > > __________________________________________________ > ">http://mail.yahoo.com > ------------------------ Yahoo! Groups Sponsor > --------------------~--> > Make a clean sweep of pop-up ads. Yahoo! Companion > Toolbar. > Now with Pop-Up Blocker. Get it for free! > http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/dN_tlB/TM > --------------------------------------------------------------------~- > > Yahoo! Groups Links Vous manquez d’espace pour stocker vos mails ? Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com

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I would try changing your "call sleep(0.0)" to something longer. It looks like you might be flooding your serial port with "2" & "3" faster than you can send it out. Checkout the following for a great multitasking example: http://www.robologic.co.uk/tutprogadvmul.htm Actually, it looks similar to your current program. Hope that helps, Thad __________________________________

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Well I would tend to agree if I was doing anything with the serial ports. However, the code I gave is just a test of multitasking displaying 2 if serial task is active and 3 if TTL task is active. Nothing more, nothing less. No serial port is open, no queue created. What I see from there is just 2s. So, if I understand well, it keeps on activating serial task but not TTL task. Why ? Anybody has a clue ? Thanks for your help. Philippe --- Thad Larson <> a écrit : --------------------------------- I would try changing your "call sleep(0.0)" to something longer. It looks like you might be flooding your serial port with "2" & "3" faster than you can send it out. Checkout the following for a great multitasking example: http://www.robologic.co.uk/tutprogadvmul.htm Actually, it looks similar to your current program. Hope that helps, Thad __________________________________ Yahoo! Groups Sponsor ADVERTISEMENT --------------------------------- Yahoo! Groups Links To Vous manquez d’espace pour stocker vos mails ? Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com

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Thanks to the link you gave, I discovered the processor does not like too much to see a "debug.print" command in a task. Or maybe it needs a longer sleep to be able to process it ?? Howvere I modified it and got the 2 tasks to run at the same speed and display the result in the main subroutine. Thank you for your help. Philippe --- Thad Larson <> a écrit : --------------------------------- I would try changing your "call sleep(0.0)" to something longer. It looks like you might be flooding your serial port with "2" & "3" faster than you can send it out. Checkout the following for a great multitasking example: http://www.robologic.co.uk/tutprogadvmul.htm Actually, it looks similar to your current program. Hope that helps, Thad __________________________________ Yahoo! Groups Sponsor ADVERTISEMENT --------------------------------- Yahoo! Groups Links To Vous manquez d’espace pour stocker vos mails ? Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com

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Anybody ever managed to open two Com3 ports on a BX-24 ? When I program it, it compiles and everything but the program seems to lock as soon as I open the second Com3 port if I do not close the first one first. Can the chip handle two Com3 ports at the same time ? Philippe Vous manquez d’espace pour stocker vos mails ? Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com

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--- In , Philippe DAROUX <pdaroux@y...> wrote: > Anybody ever managed to open two Com3 ports on a BX-24? Com3 is a software UART (as opposed Com1 which is a hardware UART) and the BX-24 is only capable of supporting one such channel. The compiler doesn't know anything about this limitation and therefore doesn't warn you that it won't work to open two at once. (Similarly, it doesn't warn you when your code uses the same variable for two different purposes.) There are some messages in the archives about people using multiple Com3 ports by opening one, using it, closing it and then opening another, etc. Another option is to add an external hardware UART. The MAX3110E is a dual SPI UART which some have used. There are some articles here and there describing how to use it with the BasicStamp. Using it with the BX-24 would be similar or you might be able to use the BX- 24's SPI interface to connect it. Here is a link to a Stamp article by Al Williams: http://www.wd5gnr.com/suart.htm

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Don, thank you for your answer. Philippe --- Don Kinzer <> a écrit : --------------------------------- --- In , Philippe DAROUX <pdaroux@y...> wrote: > Anybody ever managed to open two Com3 ports on a BX-24? Com3 is a software UART (as opposed Com1 which is a hardware UART) and the BX-24 is only capable of supporting one such channel. The compiler doesn't know anything about this limitation and therefore doesn't warn you that it won't work to open two at once. (Similarly, it doesn't warn you when your code uses the same variable for two different purposes.) There are some messages in the archives about people using multiple Com3 ports by opening one, using it, closing it and then opening another, etc. Another option is to add an external hardware UART. The MAX3110E is a dual SPI UART which some have used. There are some articles here and there describing how to use it with the BasicStamp. Using it with the BX-24 would be similar or you might be able to use the BX- 24's SPI interface to connect it. Here is a link to a Stamp article by Al Williams: http://www.wd5gnr.com/suart.htm Yahoo! Groups Sponsor ADVERTISEMENT --------------------------------- Yahoo! Groups Links To Vous manquez d’espace pour stocker vos mails ? Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com

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I have a project that I use the DEBUG.PRINT command to allow me to use two ser. ports. I use COM1 and COM3 at the same time. Here is some sample code... Public LCDIN(1 to 2) As Byte Public LCDOUT(1 to 29) As Byte Public Com1In(1 to 2) as Byte Public Com1Out(1 to 29) as Byte In my Sub Main ... 'Setup Com 3 for LCD @ 9600 Baud OpenQueue LCDIN, 1 OpenQueue LCDOUT, 29 DefineCom3 0, LCDPIN, bx1000_1000 OpenCom 3, 9600, LCDIN, LCDOUT 'Setup Com 1 for BOB-3 @ 153600 Baud OpenQueue Com1In, 1 OpenQueue Com1Out, 29 OpenCom 1, 153600, Com1In, Com1OUT > > From: "Don Kinzer" <> > Date: 2004/07/27 Tue AM 10:52:34 EDT > To: > Subject: [BasicX] Re: Com 3 port issues > > --- In , Philippe DAROUX <pdaroux@y...> wrote: > > Anybody ever managed to open two Com3 ports on a BX-24? > > Com3 is a software UART (as opposed Com1 which is a hardware UART) > and the BX-24 is only capable of supporting one such channel. The > compiler doesn't know anything about this limitation and therefore > doesn't warn you that it won't work to open two at once. (Similarly, > it doesn't warn you when your code uses the same variable for two > different purposes.) > > There are some messages in the archives about people using multiple > Com3 ports by opening one, using it, closing it and then opening > another, etc. > > Another option is to add an external hardware UART. The MAX3110E is > a dual SPI UART which some have used. There are some articles here > and there describing how to use it with the BasicStamp. Using it > with the BX-24 would be similar or you might be able to use the BX- > 24's SPI interface to connect it. > > Here is a link to a Stamp article by Al Williams: > http://www.wd5gnr.com/suart.htm > > Yahoo! Groups Links

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