Rolando Pelayo / Mbed 2 deprecated sine_wave_generator

A sine wave generator using AD9833 and AD9850 using STM32F103RB

Dependencies:   mbed

This is a sine wave generator using DDS IC' AD9833 and AD9850. The STM32F1 microcontroller produces the SPI commands for the two DDS.

Learn more about STM32F1 in my blog: https://www.teachmemicro.com

AD9850.h

Committer:
roland_tmm
Date:
2017-11-21
Revision:
2:602f7589c53e
Parent:
1:9dcccb399f0b

File content as of revision 2:602f7589c53e:

/******************************************************************************************************************
 * AD9850 library for AD9850
 * Created 11/21/2017
 * Roland Pelayo 
 *
 * Use this library freely
 *
 * Hardware connections : 
 * W_CLK   -> any pin
 * FQ_UD   -> any pin
 * DATA/D7 -> any pin
 * RESET   -> any pin
 *
 * Functions :
 * dds.begin(W_CLK pin, FQ_UD pin, DATA pin, RESET pin); Initialize the output pins and master reset the AD9850 
 * dds.calibrate(frequency); Compensation of crystal oscillator frequency
 * dds.setfreq(frequency,phase); frequency in Hz, phase coded on 5 bits
 * dds.down(); power down mode reducing the dissipated power from 380mW to 30mW @5V
 * dds.up(); wake-up the AD9850
 *
 * AD9850 datasheet at http://www.analog.com/static/imported-files/data_sheets/AD9850.pdf
 *
 *****************************************************************************************************************/
 
 
#ifndef AD9850_H
#define AD9850_H
#include <stdint.h>

class AD9850
{
    public:
    AD9850();

    void Begin();//int w_clk, int fq_ud, int data, int reset);
    void SetDDSFrequency(double f, uint8_t p);
    void down();
    void up();
    void CalibrateDDS(double TrimFreq);
    
    private:
    int ReverseBits(int value);
    int W_CLK;
    int FQ_UD;
    int DATA;
    int RESET;
    uint32_t deltaphase;
    uint8_t phase;
    void update();
    void begin_priv();
   // void pulse(int pin);
    double calibFreq;
};

#endif