LCD based clock using RTC DS12C887 and 8051 microcontroller (AT89C51) using update interrupt
This article is an improved variant of Digital clock using RTC DS12C887 and 8051 with time set. In the earlier article, we discussed the basics of extracting data from the RTC DS12C887 using the 8051 microcontroller (AT89C51). This article is in continuation to the above article and introduces you to the concept of handling interrupts for extracting time and other information from the RTC.
This article assumes that the user is aware of real time clock and the basic interfacing of DS12C887 with 8051 microcontroller (AT89C51) including the pin description, memory and registers of RTC DS 12C887.
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LCD (Liquid Crystal Display) screen is an electronic display module and find a wide range of applications. A 16x2 LCD display is very basic module and is very commonly used in various devices and circuits. These modules are preferred over seven segments...
RTC DS 12C887 is widely used to provide exact time and date in many applications such as x86 IBM PC. This RTC provides time components hour, minute and second in addition to the date/calendar components of year, month and day. This chip uses an internal lithium battery, which keeps the time and da...
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