Thread View: pilot.programmer.codewarrior
4 messages
4 total messages
Started by James M. Wadkins
Mon, 10 Sep 2001 06:26
CW7 Serial Question
Author: James M. Wadkins
Date: Mon, 10 Sep 2001 06:26
Date: Mon, 10 Sep 2001 06:26
22 lines
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2413 bytes
I have an application that uses the serial port to control a custom piece of gear( hard coded to 34,000 8, N, 1). I am using CW7, 3.5SDK and the old serial manager (the palms are 111e's with 3.1 - non-flashable). I need to send a short string like "!|01C\r\n" out the serial port. I have all the serial code working okay only it seems to work off and on. I have the same application running in VB on a Windows laptop and it runs perfectly. I have used a serial program called "Online" to send the command on the palm. With that program, if I type in the characters and hit return(send) nothing happens. Then when I put the string into a macro on that same software I get the same problem as on the palm, sometimes it works and sometime it does not. The software has a feature called "PACE" and when I set the Pace function to a higher setting, suddenly it send the macro and my equipment send backs the correct response every single time. What their help manual says is it sends one character at a time with short waits in between characters. What i want to know, it this feature of the Palm OS or a routine I would have to write? Thanks, james M. Wadkins
Re: CW7 Serial Question
Author: dodah12
Date: Mon, 10 Sep 2001 12:56
Date: Mon, 10 Sep 2001 12:56
45 lines
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"James M. Wadkins" <james@vtat.com> wrote in message news:3B9C5D32.AC76ABA5@vtat.com... > I have an application that uses the serial port to control a custom > piece of gear( hard coded to 34,000 8, N, 1). I am using CW7, 3.5SDK and > the old serial manager (the palms are 111e's with 3.1 - non-flashable). > > I need to send a short string like "!|01C\r\n" out the serial port. I > have all the serial code working okay only it seems to work off and on. > I have the same application running in VB on a Windows laptop and it > runs perfectly. I have used a serial program called "Online" to send the > command on the palm. With that program, if I type in the characters and > hit return(send) nothing happens. Then when I put the string into a > macro on that same software I get the same problem as on the palm, > sometimes it works and sometime it does not. The software has a feature > called "PACE" and when I set the Pace function to a higher setting, > suddenly it send the macro and my equipment send backs the correct > response every single time. > > What their help manual says is it sends one character at a time with > short waits in between characters. What i want to know, it this feature > of the Palm OS or a routine I would have to write? > > Thanks, james, To 'pace' your output you would have to try either 2 stop bits (does the Palm do that, would have to look it up.) Or sprinkle more code to emulate it. To wit: SrmSend one char... SrmSendWait for the char to complete... SysTaskDelay some amount to time between characters. On second thought the SrmSendWait might not be needed, but IMHO would be more correct. The bottomline may be that the device has a software UART and can't handle back to back bytes. As such you can just toss some string into the output buffer and let it fly. Bob
Re: CW7 Serial Question
Author: bullshark
Date: Mon, 10 Sep 2001 19:39
Date: Mon, 10 Sep 2001 19:39
12 lines
1700 bytes
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"James M. Wadkins" wrote: > > I have an application that uses the serial port to control a custom > piece of gear( hard coded to 34,000 8, N, 1). I am using CW7, 3.5SDK and > the old serial manager (the palms are 111e's with 3.1 - non-flashable). Non Standard Baud Rate. The actual being provided (I think) is 33445. The next step up will be 34,560. Rock--->you<---Hardplace
Re: CW7 Serial Question
Author: James M. Wadkins
Date: Tue, 11 Sep 2001 05:24
Date: Tue, 11 Sep 2001 05:24
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Sorry, it's 38,400 8, N, 1 bullshark wrote: > > "James M. Wadkins" wrote: > > > > I have an application that uses the serial port to control a custom > > piece of gear( hard coded to 34,000 8, N, 1). I am using CW7, 3.5SDK and > > the old serial manager (the palms are 111e's with 3.1 - non-flashable). > > Non Standard Baud Rate. > The actual being provided (I think) is 33445. > The next step up will be 34,560. > > Rock--->you<---Hardplace
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