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用递归技术和PIC17C42实现多音调的产生
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格式:rar |
大小:169 |
2009-06-29
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A general purpose resonator routine is implemented
using a PIC17C42. This routine is used to generate
multiple tones. A tone signal is normally generated
using extensive table lookup schemes. When a multiple
tone signal is desired, each tone must have its own
lookup table, thus requiring a large amount of storage
space, especially when various frequencies are to be
generated. This application note implements tone generation
using recursive techniques. The algorithm for a
resonator is developed and implemented using
PIC17C42.
using a PIC17C42. This routine is used to generate
multiple tones. A tone signal is normally generated
using extensive table lookup schemes. When a multiple
tone signal is desired, each tone must have its own
lookup table, thus requiring a large amount of storage
space, especially when various frequencies are to be
generated. This application note implements tone generation
using recursive techniques. The algorithm for a
resonator is developed and implemented using
PIC17C42.
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