The timer and counter for game are solve the question that timing and counting is inaccurate. This apparatus is use of the MCU, AT89C52, to realize timing and counting function. This paper presents the design process of software and hardware in detail, this apparatus can modify the score according to the actual situation and display the exact time. Meanwhile this apparatus have these feature such as lower dissipation, high reliability, security and lower cost.
Key words MCU(micro-control unit), AT89c52, timer, counter
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