By changing the DA output voltage of the microcontroller, we can get all kinds of voltage waveform output. The following describes how to generate the sinusoidal waveform and how to calculate the data needed to send DA. First, since it is a sine wave, so it is necessary to determine a cycle of sine wave output from point sampling points, how many points form a cycle of a sine wave, but also know the output of DA singlechip digital value number is maxnum, for example 8 bit DA, maxnum=256. 10 bit DA, maxnum=1024. Sin_tab= (maxnum/2) *sin (x) + (maxnum/2); / / I x on behalf of a point for a corresponding angle radian angle radian = * (n /180); / / DA (maxnum/2) at the

中频测试51\Application\Header\24C02.h
中频测试51\Application\Header\lcd1602.h
中频测试51\Application\Header\nrf24l01p.h
中频测试51\Application\Header\STC15F2K60S2.H
中频测试51\Application\Header\TLC5615.h
中频测试51\Application\Source\lcd1602.c
中频测试51\Application\Source\main.c
中频测试51\Application\Source\nrf24l01p.c
中频测试51\Application\Source\TLC5615.c
中频测试51\LCD1602_Char.plg
中频测试51\LCD1602_Char.uvgui.Administrator
中频测试51\LCD1602_Char.uvgui_Administrator.bak
中频测试51\LCD1602_Char.uvopt
中频测试51\LCD1602_Char.uvproj
中频测试51\LCD1602_Char_uvopt.bak
中频测试51\LCD1602_Char_uvproj.bak
中频测试51\Lis\lcd1602.lst
中频测试51\Lis\LCD1602_Char.m51
中频测试51\Lis\main.lst
中频测试51\Lis\nrf24l01p.lst
中频测试51\Lis\STARTUP.lst
中频测试51\Lis\TLC5615.lst
中频测试51\Obj\lcd1602.obj
中频测试51\Obj\LCD1602_Char
中频测试51\Obj\LCD1602_Char.build_log.htm
中频测试51\Obj\LCD1602_Char.hex
中频测试51\Obj\LCD1602_Char.lnp
中频测试51\Obj\LCD1602_Char.plg
中频测试51\Obj\main.obj
中频测试51\Obj\nrf24l01p.obj
中频测试51\Obj\STARTUP.obj
中频测试51\Application\Header
中频测试51\Application\Source
中频测试51\Application
中频测试51\Lis
中频测试51\Obj
中频测试51

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