PIC18 LaurTec Library  3.3.1
Open Source C Library for PIC18 Microcontrollers based on C18 - XC8 Compilers
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AD9833.h
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1 /*******************************************************************************
2 
3 Author : Dario Di Turi
4 Version : 1.2
5 Date : 08/12/2012
6 
7 Last Update: Mauro Laurenti
8 Last Update: 15/12/2014
9 
10 ********************************************************
11 SOFTWARE LICENSE AGREEMENT
12 ********************************************************
13 
14 The usage of the supplied software imply the acceptance of the following license.
15 
16 The software supplied herewith by Dario Di Turi (the Author) is intended for
17 use solely and exclusively on Microchip PIC Microcontroller (registered mark).
18 The software is owned by the Author, and is protected under applicable
19 copyright laws. All rights are reserved.
20 Any use in violation of the foregoing restrictions may subject the
21 user to criminal sanctions under applicable laws, as well as to civil liability
22 for the breach of the terms and conditions of this license.
23 Commercial use is forbidden without a written acknowledgement with the Author.
24 Personal or educational use is allowed if the application containing the
25 following software doesn't aim to commercial use or monetary earning of any kind.
26 
27 THIS SOFTWARE IS PROVIDED IN AN "AS IS" CONDITION. NO WARRANTIES,
28 WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED
29 TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
30 PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE AUTHOR SHALL NOT,
31 IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR
32 CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
33 
34 
35 ********************************************************
36 PURPOSES
37 ********************************************************
38 
39 This library contains all functions needed to control the DDS waveform generator
40 AD9833. Information on the AD9833 can be found on the website
41 Analog Devices www.analog.com
42 
43 More details and pictures can be downloaded from www.LaurTec.com
44 
45 *******************************************************************************/
46 
47 
48 #ifndef AD9833_H
49 #define AD9833_H
50 
51 #ifdef __XC8
52  #include <xc.h>
53 #endif
54 
55 #include <spi.h>
56 
57 //**************************************************
58 // PIN CONNECTIONS
59 // Use the default pin to SPI connection
60 // SDATA(SDO) to RC7
61 // SCLK(SCK) to RB1
62 // FSYNC(SS) to RA5
63 //
64 // Remember:
65 // 1) The pull up resistor
66 // 2) Set the TRISx register
67 //**************************************************
68 
69 #define FSYNC LATAbits.LATA5
70 
71 
72 //**************************************************
73 // COSTANTS
74 //**************************************************
75 
76 #define AD9833_RESET 0b0000000100000000
77 #define AD9833_REG0 0
78 #define AD9833_REG1 1
79 #define AD9833_DOWN 0
80 #define AD9833_UP 1
81 #define AD9833_SIN 1
82 #define AD9833_TRIANGLE 2
83 #define AD9833_SQUARE 3
84 #define AD9833_FREQUENCY0_OUT 4
85 #define AD9833_FREQUENCY1_OUT 5
86 #define AD9833_PHASE0_OUT 6
87 #define AD9833_PHASE1_OUT 7
88 #define AD9833_SLEEP_MODE 9
89 #define AD9833_POWER_ON 10
90 
91 
92 //****************************************************************************************************
93 // PRIVATE FUNCTIONS (The user should not use it)
94 //****************************************************************************************************
95 
106 void AD9833_write_data (unsigned int data);
107 #define write_data_AD9833 AD9833_write_data
108 
109 
119 unsigned int AD9833_compose_control_word (unsigned char function_type);
120 #define compose_AD9833_control_word AD9833_compose_control_word
121 
122 
123 //****************************************************************************************************
124 // PUBLIC FUNCTIONS
125 //****************************************************************************************************
126 
137 void AD9833_initialize (unsigned char fmclk);
138 #define initialize_AD9833 AD9833_initialize
139 
140 
152 void AD9833_set_frequency (unsigned long freq_value, unsigned char frequency_register);
153 #define set_frequency_AD9833 AD9833_set_frequency
154 
155 
172 void AD9833_tuning_frequency (unsigned char tuning_step, unsigned char direction,unsigned char frequency_register );
173 #define tuning_frequency_AD9833 AD9833_tuning_frequency
174 
175 
187 void AD9833_set_phase (unsigned long phase_value, unsigned char phase_register);
188 #define set_phase_AD9833 AD9833_set_phase
189 
190 
208 void AD9833_set_function (unsigned char function_type);
209 #define set_function_AD9833 AD9833_set_function
210 
211 
212 #endif
213 
214 
215 
216 
217