基于16 位定点运算精度的TMS320C2812 DSP 芯片,对车载FSK信号进行解调,并提出了2个软件解调算法方案。 关键字:DSP TMS320C2812 FSK 过零计数 FFT Abstract: The FSK signal is demodulated in vehicle which comes true at the TMS320C2812 DSP.And we also put forward 2 methods to demodulate the signal by software. Keywords: DSP TMS320C2812 FSK Over-zero Counting FFT