mg32+@andrew.cmu.edu (Michael Ginsberg) (06/29/90)
I have been trying to write a com driver for the intel 80386 family of machines and have been having a strange problem. At some point in time, I stop seeing interrupts. They are enabled, and I can manually throw characters out on to the line. However, I simply don't get a transmit interrupt. The same happens on the reverse side, with the receive interrupt not coming in. Is there a known bug with the standard UART, or is there something bizarra that I have to do to prevent the chip from going into a strange state? Any help would be appreciated. --Michael Ginsberg, i386 Mach Group, School of Computer Science Carnegie Mellon University, Pittsburgh, Pennsylvania, USA --------------------------------------------------------------------------- ARPA: mg32+@andrew.cmu.edu |Electrocution, n: BITNET: mg32@cmccvb | Burning at the stake with UUCP: ...!harvard!andrew.cmu.edu!mg32+ | all the modern improvements. ---------------------------------------------------------------------------