The official Palm docs www.palm.com\devzone
the article: Pilot Serial Programming www.developer.com/roadcoders (its a
little dated but offers some basic tips)
There are also several books available. "Palm Programming - The Developer's
Guide" and "Palm Programming - The Authoritative Solution" both have a
chapter on serial communications and are available from fatbrain.com and
amazon.com
-----Original Message-----
From: Jo�o.T.Pereira <[EMAIL PROTECTED]>
To: '[EMAIL PROTECTED]' <[EMAIL PROTECTED]>
Date: Friday, November 19, 1999 7:29 AM
Subject: RE: Serial problems
>hi joseph,
>
>i'm a beginner in the world of palm and i'm trying to develop a program
>which uses my computer serial interface. i was hoping you good lend me a
tip
>on serial connections or maybe some links to documentation and source.
>
>cheers,
>
>zYthUm ([EMAIL PROTECTED])
>
>-----Original Message-----
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>Sent: Wednesday, November 17, 1999 5:52 AM
>To: [EMAIL PROTECTED]
>Subject: Re: Serial problems
>
>
>Thank you, I am clearly and simply an idiot.
>
>On Tue, 16 Nov 1999 17:26:59 -0800, "B. Flaumenhaft"
><[EMAIL PROTECTED]> wrote:
>
>>
>>Are you actually allocating space for SerErr somewhere?
>>
>>In the snippet below, you're declaring a pointer to an Err:
>>
>> Err * SerErr;
>>
>>but this pointer points to garbage. When you pass the pointer SerErr to
>>SerSend(), you're passing it a pointer to some garbage area, and if it
>>tries to insert an error code in that garbage area, you'll have problems.
>>
>>Regards,
>>Ben Flaumenhaft
>>
>>>I am getting the following error when I call SerSend.
>>>
>>>DEX 1.0 reports "SerialMgr68328.c Line 904, null ref" ...
>>>
>>>Hopefully here is a code snippet that will hopefully show clearly and
>>>simply how I am a idiot.
>>>
>>>Err *SerErr;
>>>UInt RefNumber;
>>>
>>>void tx_byte(char ch)
>>>{
>>> static char tmp;
>>>
>>> tmp = ch;
>>> SerSend(RefNumber,&tmp,1,SerErr);
>>>}
>>>
>>>
>>>........
>>> err = SysLibFind("Serial Library",&RefNumber);
>>> ErrFatalDisplayIf(err!=0,"sysLibFind");
>>>
>>>
>>> err = SerOpen(RefNumber,0,9600);
>>> ErrFatalDisplayIf(err!=0,"SerOpen");
>>>
>>> SerSettingsType serial;
>>> serial.baudRate= 9600;
>>> serial.ctsTimeout = serDefaultCTSTimeout;
>>> serial.flags = serSettingsFlagBitsPerChar8 |
>>> serSettingsFlagStopBits1;
>>> err = SerSetSettings(RefNumber,&serial);
>>> ErrFatalDisplayIf(err!=0,"SerSetSettings");
>>>...
>>> tx_byte(ENQ);
>>>
>>>
>>>
>>>I have looked at all the examples of setting up a serial connection
>>>that I can find and I can't see what I am missing.
>>>
>>>Thanks
>>
>>
>
>
