基于單片機(jī)的電子琴機(jī)器音樂播放器的設(shè)計(jì)--開題報(bào)告(已改無錯(cuò)字)
2023-07-01 12:00:43 本頁面
【正文】 that in addition to display song and display song title, the vast majority of players do not play the function of the selforgan. It presents a departure from the keyboard and music players set one of the new organ. SCM is an integrated circuit chip, ultralarge scale integrated circuit technology is used with data processing capabilities to the central processing unit CPU random access memory RAM, readonly memory ROM, a variety of I / O port and interrupt system, timers / timer Other functions (and possibly the display driver circuit, pulse width modulation circuit, analog multiplexers, A / D converter circuit) into a single silicon wafer consisting of a small but plete puter system. At89S52 is a low power, high performance CMOS8 bit microcontroller with 8K insystem programmable Flash memory. Using Atmel39。s high density nonvolatile memory technology manufacturing and industrial 80C51 instruction set and pin patible. Onchip Flash program memory allows insystem programmable, but also for conventional programmer. On a single chip, with 8bit CPU smart and insystem programmable Flash, making AT89S52 for many embedded control applications with high flexibility, ultraeffective solution. AT89S52 provides the following standard features: 8k bytes Flash, 256 bytes of RAM, 32 位 I / O lines, Watchdog timer, two data pointers, three 16bit timer / counter, a 6 interrupt vector 2 Structure, fullduplex serial port, onchip oscillator and clock circuitry. In addition, AT89S52 0Hz static logic operations can be reduced to support two kinds of software selectable power saving mode. Idle mode, CPU stop working, allowing the RAM, timer / counters, serial port, interrupt to work. Powerdown protection mode, RAM contents are preserved, the oscillator is frozen, single chip all the work stopped until the next interrupt or hardware reset date.The design is based on AT89S52 microcontroller keyboard and music player design. The design is based on AT89S52 microcontroller keyboard and music player design. It is based on AT89S52 microcontroller as the core, and some auxiliary peripheral devices, the use of assembly language programming, to achieve multifunction music player, songs, and the use of autoloop function keys self track. In addition, the lantern display the song tempo, key to jump to a favorite track, the LCD displays the current broadcast the English track. After system initialization, enter the default playback. Starting from the first track to start loop playback. If the interrupt to determine whether the mode switch. If so, then enter from the arranger keyboard features, to achieve selfplaying self. If not, continue loop inside music. If a jump during playback track selection, then enter the corresponding track program.This new keyboard is a product of modern technology, with social development, technological advances in the various hightech new organ will follow.中文譯文：，稱為哈蒙德琴。它靠電磁線圈靠近91個(gè)多角鋼音輪發(fā)出交流波，整理為正弦波合成音色。它有兩層61鍵手鍵盤和一組32鍵腳鍵盤，能模擬20多種音色，這種琴于193
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