dds.h

采用Atmega16的变频式超声波发生器的源代码

#ifndef DDS_H
#define DDS_H

void ad9851_init(void);
//void write_dds(unsigned long dds);
void write_ad9851(double freq);


void ad9835_init(void);
void ad9835_spi(uint data);
ulong ad9835_f_to_data(ulong f);
void ad9835(ulong f);

#endif