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@0:6069c0f2a245, 2017-11-21 (annotated)

Committer:
roland_tmm
Date:
Tue Nov 21 11:24:25 2017 +0000
Revision:
0:6069c0f2a245
Child:
1:9dcccb399f0b
Version 1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
roland_tmm 0:6069c0f2a245 1 /******************************************************************************************************************
roland_tmm 0:6069c0f2a245 2 * Arduino library for AD9850
roland_tmm 0:6069c0f2a245 3 * Created 23/08/2014
roland_tmm 0:6069c0f2a245 4 * Christophe Caiveau f4goj@free.fr
roland_tmm 0:6069c0f2a245 5 *
roland_tmm 0:6069c0f2a245 6 * Use this library freely
roland_tmm 0:6069c0f2a245 7 *
roland_tmm 0:6069c0f2a245 8 * Hardware connections :
roland_tmm 0:6069c0f2a245 9 * W_CLK -> any pin
roland_tmm 0:6069c0f2a245 10 * FQ_UD -> any pin
roland_tmm 0:6069c0f2a245 11 * DATA/D7 -> any pin
roland_tmm 0:6069c0f2a245 12 * RESET -> any pin
roland_tmm 0:6069c0f2a245 13 *
roland_tmm 0:6069c0f2a245 14 * Functions :
roland_tmm 0:6069c0f2a245 15 * dds.begin(W_CLK pin, FQ_UD pin, DATA pin, RESET pin); Initialize the output pins and master reset the AD9850
roland_tmm 0:6069c0f2a245 16 * dds.calibrate(frequency); Compensation of crystal oscillator frequency
roland_tmm 0:6069c0f2a245 17 * dds.setfreq(frequency,phase); frequency in Hz, phase coded on 5 bits
roland_tmm 0:6069c0f2a245 18 * dds.down(); power down mode reducing the dissipated power from 380mW to 30mW @5V
roland_tmm 0:6069c0f2a245 19 * dds.up(); wake-up the AD9850
roland_tmm 0:6069c0f2a245 20 *
roland_tmm 0:6069c0f2a245 21 * AD9850 datasheet at http://www.analog.com/static/imported-files/data_sheets/AD9850.pdf
roland_tmm 0:6069c0f2a245 22 *
roland_tmm 0:6069c0f2a245 23 *****************************************************************************************************************/
roland_tmm 0:6069c0f2a245 24
roland_tmm 0:6069c0f2a245 25
roland_tmm 0:6069c0f2a245 26 #ifndef AD9850_H
roland_tmm 0:6069c0f2a245 27 #define AD9850_H
roland_tmm 0:6069c0f2a245 28 #include <stdint.h>
roland_tmm 0:6069c0f2a245 29
roland_tmm 0:6069c0f2a245 30 class AD9850
roland_tmm 0:6069c0f2a245 31 {
roland_tmm 0:6069c0f2a245 32 public:
roland_tmm 0:6069c0f2a245 33 AD9850();
roland_tmm 0:6069c0f2a245 34
roland_tmm 0:6069c0f2a245 35 void Begin();//int w_clk, int fq_ud, int data, int reset);
roland_tmm 0:6069c0f2a245 36 void SetDDSFrequency(double f, uint8_t p);
roland_tmm 0:6069c0f2a245 37 void down();
roland_tmm 0:6069c0f2a245 38 void up();
roland_tmm 0:6069c0f2a245 39 void CalibrateDDS(double TrimFreq);
roland_tmm 0:6069c0f2a245 40
roland_tmm 0:6069c0f2a245 41 private:
roland_tmm 0:6069c0f2a245 42 int W_CLK;
roland_tmm 0:6069c0f2a245 43 int FQ_UD;
roland_tmm 0:6069c0f2a245 44 int DATA;
roland_tmm 0:6069c0f2a245 45 int RESET;
roland_tmm 0:6069c0f2a245 46 uint32_t deltaphase;
roland_tmm 0:6069c0f2a245 47 uint8_t phase;
roland_tmm 0:6069c0f2a245 48 void update();
roland_tmm 0:6069c0f2a245 49 void begin_priv();
roland_tmm 0:6069c0f2a245 50 // void pulse(int pin);
roland_tmm 0:6069c0f2a245 51 double calibFreq;
roland_tmm 0:6069c0f2a245 52 };
roland_tmm 0:6069c0f2a245 53
roland_tmm 0:6069c0f2a245 54 #endif