8052.com SBC - Digital Clock for SBCMON SBC Hardware: Main | SBC Schematic/Parts List | Technical Details | All pages in PDF format SBC In-System Programming: Information | VisISP-52 ISP Application SBCMON Monitor/Operating System: Main Page | Manual SBCMON-based Software: SBCMON Monitor | Keypad Demo | LCD Echo Demo | Hardware Clock | Software Clock SBCMON-based PS/2 Software: PS/2 Comm Monitor | PS/2 Keyboard | PS/2 Mouse ORDER 8052.com SBC: PCB, KIT OR BUILT SBC AVAILABLE FOR PURCHASE Download Digital Clock for SBCMON You may download either the source code or the ready-to-use Intel-Hex version of the keypad demonstration program. The Intel-Hex version may be loaded into SBCMON's memory using the L or Q commands. Download the source ASM program if you'd like to see the code that makes SBCMON work. SBCMON Digital Clock Program Source (clock.asm) SBCMON Digital Clock Intel HEX (clock.hex) NOTE: This demo program requires SBCMON monitor program to run. Be sure to download SBCMON first, install on your SBC, and then run this demo from within SBCMON itself. This program may require additional modification in order to run without SBCMON. What Does this Program Do? This program is a simple digital clock that constantly displays the current time and date retrieved from the DS1307 RTC and displays it on the LCD. A typical display for the digital clock is: Fri Feb 25, 2005 10:31:47 Note that the clock must first be set (with the 'C' command, for example) prior to running this program or the clock will be wrong and/or will not be updated. When setting the clock, the day of the week code (1-7) should be 1=Monday, 2=Tuesday, etc. You may press any key in the PC's terminal program in order to exit the clock. Concepts Demonstrated by Program This program demonstrates the following concepts: I2C communication. Reading the time from the DS1307 RTC. Clearing LCD screen. Setting LCD cursor position. Writing characters to the LCD. (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.