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DAC7724
- 本程序基于DSPIC33EP128GM306 单片机编写 通过DAC7724芯片输出方波、三角波、正弦波程序,其中正弦波程序通过生成正弦波查表实现正弦波输出,该程序以在硬件电路中测试。-The program is based on DSPIC 33EP 128GM306 prepared by the microcontroller chip DAC7724 output square wave, triangle wave, sine wave program, a program in w
bo
- 使用msp430f149单片机通过查询sin表实现产生正弦波。频率较低,波形相对较稳定。-Use msp430f149 SCM query generates a sine wave sin table to achieve. Lower frequencies, the waveform is relatively stable.
sin_en
- DDS 由相位增量器,相位累加器,量化器以及正余弦查找表四部分组成。 相位累加器每一周期会累加上固定的相位值,然后从查找表中找到对应的数值。-DDS by the phase increment, phase accumulator, quantizer and sine and cosine lookup table of four parts. The phase accumulator accumulates a fixed phase value for each period,
sin2pi
- 正弦参数表,16位,整型,带符号,主要用于编程中的参数表(Sine parameter table, 16 bit, integer, with symbols, mainly used in programming parameter table)
EPWM
- 利用正玄查表,在28335上实现PWM调制,生成正弦波(The use of positive look-up table, in 28335 to achieve PWM modulation, generate sine wave)
STM32_PRJ_32点5khz采样
- stm32f103嵌入式单片机快速傅里叶fft转换。 采用定时器TIM4的CCR4触发ADC采样, 采样率5khz,正弦及余弦运算采用查表法。 ram占用小于300byte。(STM32F103 embedded microcontroller, fast Fourier transform FFT. Using the CCR4 of the timer TIM4 to trigger ADC sampling, The sampling rate is 5KHz, sine