home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!psgrain!percy!data!courtney
- From: courtney@data.rain.com (Courtney Meissen)
- Newsgroups: comp.windows.ms.programmer
- Subject: Windows and high (>19.2K) baud rates
- Message-ID: <698@data.rain.com>
- Date: 25 Jul 92 23:08:28 GMT
- Organization: Microtek DSD, Hillsboro, OR
- Lines: 29
-
-
-
- Questions on Serial communications from Windows:
-
- 1) Standard Windows API's don't accept baud rates higher than 19200
- (API's like BuildCommDCB(), SetCommState()).
-
- Is there a workaround from Windows?
- What are the baud rate indices in the 3.1 Windows.h (CBR_*) for?
- They are not used by any of the sample code in the 3.1 SDK.
-
- If I ignore the API's and set up the DCB myself, SetCommState
- still fails (don't know what the error codes mean, this one
- returns -5).
- I would be willing to talk to the port directly, but I see that
- the Dos int $14 functions only document a maximum baud of 19200
- (int $14, function 4 - Extended initialize comm port).
-
- Is there an inherent limit of 19200 with Windows since it is built
- on top of Dos?
- Are there any substitute comm.drv drivers for Windows that would
- support higher baud rates?
-
- Please help!!
- --
- Courtney Meissen Microtek Development Systems Division
- courtney@data.rain.com 3300 NW 211th Terrace
- uunet!intelhf!percy!data!courtney Hillsboro, OR 97124 (503)645-7333x446
- "There's a light at the end of the tunnel.. I hope it ain't no train."
-