PIC24/PIC18波形发生器

大家好！我正忙于设计一个波形发生器来产生基本的信号，比如正弦、SAW、tiL和SQL。我只想在我的设置上输入一些。我正在考虑使用PIC18来完成除了产生信号以外的所有任务。这包括管理LCD，旋转编码器，数字电位器和按钮。我将让PIC24输出位配置到我的电阻梯形（DAC）来产生信号。我想我可以通过UART或一些东西从PIC18发送命令。我选择了这样做，所以我可以得到一个数兆赫兹的信号，因为PIC24不必浪费时间刷新CD或轮询I/O引脚。不过，这感觉就像是浪费了PIC24。有什么想法吗？谢谢你的帮助！



      以下为原文

    Hello everyone!

I'm busy designing a waveform generator to produce basic signals like sine, saw, tri and sq. I just wanted some input on my setup.

I am considering using a pic18 for all tasks other than producing signal. That includes managing the LCD, rotary encoders, digital potentiometers and push buttons.
I was going to have the pic24 output the bit configurations to my resistor ladder(DAC) to produce the signal. I figure I could send it commands from the pic18 via UART or something.

I chose this so I could get a signal of several Mhz as the pic24 would not have to waste time refreshing the LCD or polling the I/O pins. Still, it feels like a waste of pic24.

Any thoughts?
I appreciate your help!