Mark Odell's free 8051 codes snippets and drivers Snippets (.ZIP) My UART driver for the 8051. Interrupt driven, ring buffered send and receive. My Timer 0 driver for the 8051. Trivial timer tick driver. My 8051 reset function in C. (C) Copyright 1997 - 2008 by Vault Information Services LLC. All Rights Reserved. Information provided "as-is" without warranty. Please see details. Contact us for usage and copy permission.