Contiki 3.x
pic32.h
Go to the documentation of this file.
1 /*
2  * Contiki PIC32 Port project
3  *
4  * Copyright (c) 2012,
5  * Scuola Superiore Sant'Anna (http://www.sssup.it) and
6  * Consorzio Nazionale Interuniversitario per le Telecomunicazioni
7  * (http://www.cnit.it).
8  *
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  * notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in the
18  * documentation and/or other materials provided with the distribution.
19  * 3. Neither the name of the Institute nor the names of its contributors
20  * may be used to endorse or promote products derived from this software
21  * without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  *
35  */
36 
37 /**
38  * \addtogroup cpu
39  * @{ */
40 
41 /**
42  * \defgroup pic32 PIC32 Contiki Port
43  *
44  * @{
45  */
46 
47 /**
48  * \file pic32.h
49  * \brief PIC32MX initialization routines
50  * \author Giovanni Pellerano <giovanni.pellerano@evilaliv3.org>
51  * \date 2012-03-23
52  */
53 
54 #ifndef INCLUDE_PIC32_PIC32_H_
55 #define INCLUDE_PIC32_PIC32_H_
56 
57 /*
58  * PIC32MX795F512L - Specific Functions
59  *
60  * All the functions in this part of the file are specific for the
61  * pic32mx795f512l that is characterized by registers' name that differ from
62  * the 3xx and 4xx families of the pic32mx.
63  */
64 
65 /* Initial Configuration
66  *
67  * Main Clock -> SYSCLK = (Crystal_Freq / FPLLIDIV) * FPLLMUL / FPLLODIV
68  * Peripheral Clock -> PBCLK = SYSCLK / FPBDIV
69  *
70  * SYSCLK = 80MHz, PBCLK = 40MHz
71 */
72 
73 #include <p32xxxx.h>
74 
75 #pragma config FNOSC = PRIPLL // Oscillator Selection
76 #pragma config FPLLIDIV = DIV_2 // PLL Input Divider (PIC32 Starter Kit: use divide by 2 only)
77 #pragma config FPLLMUL = MUL_20 // PLL Multiplier
78 #pragma config FPLLODIV = DIV_1 // PLL Output Divider
79 #pragma config FPBDIV = DIV_1 // Peripheral Clock divisor
80 #pragma config FWDTEN = OFF // Watchdog Timer
81 #pragma config WDTPS = PS32768 // Watchdog Timer Postscale
82 #pragma config FCKSM = CSDCMD // Clock Switching & Fail Safe Clock Monitor
83 #pragma config OSCIOFNC = OFF // CLKO Enable
84 #pragma config POSCMOD = HS // Primary Oscillator
85 #pragma config IESO = OFF // Internal/External Switch-over
86 #pragma config FSOSCEN = OFF // Secondary Oscillator Enable
87 #pragma config CP = OFF // Code Protect
88 #pragma config BWP = OFF // Boot Flash Write Protect
89 #pragma config PWP = OFF // Program Flash Write Protect
90 #pragma config ICESEL = ICS_PGx2 // ICE/ICD Comm Channel Select
91 #pragma config DEBUG = OFF // Debugger Disabled for Starter Kit
92 #pragma config FSRSSEL = PRIORITY_7
93 
94 /* external PHY in RMII/default configuration */
95 
96 #pragma config FMIIEN = OFF
97 #pragma config FETHIO = ON
98 
99 void pic32_init(void);
100 
101 #endif /* INCLUDE_PIC32_PIC32_H_ */
102 
103 /** @} */
104 /** @} */