From: "Martin Czamai" Newsgroups: comp.os.msdos.djgpp Subject: serial interface resource detection and initialization Date: Wed, 25 Apr 2001 10:34:50 +0200 Organization: [neXgo] the next generation online Lines: 26 Message-ID: <9c62bu$90a$1@newsread1.nexgo.de> NNTP-Posting-Host: d21173-gw.netzdienste.de X-Trace: newsread1.nexgo.de 9226 FR X-Complaints-To: abuse AT germany DOT net NNTP-Posting-Date: Wed, 25 Apr 2001 08:37:18 +0000 (UTC) X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 X-Priority: 3 X-Newsreader: Microsoft Outlook Express 5.00.2615.200 X-MSMail-Priority: Normal To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Hi all, my problem is that I have a "Sure RPC DCF77" receiver from Linum, which is connected to a PCs serial port and delivers information coded via 100 and 200ms pulses on the RXD pin of a serial interface. Since resources can be allocated dynamically in a PCI chipset and needn't to be located at default base-adresses like 0x3F8 (COM1) or 0x2F8 (COM2), how can I detect the correct base adress and interrupt of a serial interface?? My PC uses the 82C371EB chipset from Intel, but when reading out the PCIs device header at its correct location (and function), I read only the default values which are definitly not the same I set up in BIOS. Any idea about that?? Some additional info: if I use BIOS functions to initialize the serial interface, the lowest baudrate I can select are 110baud. To recognize the 100 and 200ms pulses correct, I require only 50 (!) baud. This is the reason why I require the resource-information about the serial interface to program its timing-registers.... Thanks in advance for any comment and help Martin M DOT Czamai AT PEAK-System DOT com