OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [HCS12_CodeWarrior_small/] [CODE/] [Cpu.C] - Blame information for rev 773

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 588 jeremybenn
/** ###################################################################
2
**     THIS BEAN MODULE IS GENERATED BY THE TOOL. DO NOT MODIFY IT.
3
**     Filename  : Cpu.C
4
**     Project   : RTOSDemo
5
**     Processor : MC9S12C32CFU
6
**     Beantype  : MC9S12C32_80
7
**     Version   : Bean 01.002, Driver 01.09, CPU db: 2.87.276
8
**     Compiler  : Metrowerks HC12 C Compiler
9
**     Date/Time : 18/06/2005, 18:00
10
**     Abstract  :
11
**         This bean "MC9S12C32_80" implements properties, methods,
12
**         and events of the CPU.
13
**     Settings  :
14
**
15
**     Contents  :
16
**         EnableInt   - void Cpu_EnableInt(void);
17
**         DisableInt  - void Cpu_DisableInt(void);
18
**         SetWaitMode - void Cpu_SetWaitMode(void);
19
**         SetStopMode - void Cpu_SetStopMode(void);
20
**
21
**     (c) Copyright UNIS, spol. s r.o. 1997-2002
22
**     UNIS, spol. s r.o.
23
**     Jundrovska 33
24
**     624 00 Brno
25
**     Czech Republic
26
**     http      : www.processorexpert.com
27
**     mail      : info@processorexpert.com
28
** ###################################################################*/
29
 
30
/* MODULE Cpu. */
31
 
32
#include "Byte1.h"
33
#include "TickTimer.h"
34
#include "ButtonInterrupt.h"
35
#include "PE_Types.h"
36
#include "PE_Error.h"
37
#include "PE_Const.h"
38
#include "IO_Map.h"
39
#include "PE_Timer.h"
40
#include "Events.h"
41
#include "Cpu.h"
42
 
43
#define CGM_DELAY  3071UL
44
 
45
 
46
/* Global variables */
47
volatile byte CCR_reg;                 /* Current CCR reegister */
48
byte CpuMode = HIGH_SPEED;             /* Current speed mode */
49
 
50
 
51
/*
52
** ===================================================================
53
**     Method      :  Cpu_Interrupt (bean MC9S12C32_80)
54
**
55
**     Description :
56
**         This method is internal. It is used by Processor Expert
57
**         only.
58
** ===================================================================
59
*/
60
#pragma CODE_SEG __NEAR_SEG NON_BANKED /* Interrupt section for this module. Placement will be in NON_BANKED area. */
61
 
62
__interrupt void Cpu_Interrupt(void)
63
{
64
}
65
 
66
#pragma CODE_SEG DEFAULT               /* Change code section to DEFAULT. */
67
 
68
/*
69
** ===================================================================
70
**     Method      :  Cpu_DisableInt (bean MC9S12C32_80)
71
**
72
**     Description :
73
**         Disable maskable interrupts
74
**     Parameters  : None
75
**     Returns     : Nothing
76
** ===================================================================
77
*/
78
/*
79
void Cpu_DisableInt(void)
80
 
81
**      This method is implemented as macro in the header module. **
82
*/
83
 
84
/*
85
** ===================================================================
86
**     Method      :  Cpu_EnableInt (bean MC9S12C32_80)
87
**
88
**     Description :
89
**         Enable maskable interrupts
90
**     Parameters  : None
91
**     Returns     : Nothing
92
** ===================================================================
93
*/
94
/*
95
void Cpu_EnableInt(void)
96
 
97
**      This method is implemented as macro in the header module. **
98
*/
99
 
100
/*
101
** ===================================================================
102
**     Method      :  Cpu_SetStopMode (bean MC9S12C32_80)
103
**
104
**     Description :
105
**         Set low power mode - Stop mode. For more information
106
**         about the stop mode see documentation of this CPU.
107
**     Parameters  : None
108
**     Returns     : Nothing
109
** ===================================================================
110
*/
111
/*
112
void Cpu_SetStopMode(void)
113
 
114
**      This method is implemented as macro in the header module. **
115
*/
116
 
117
/*
118
** ===================================================================
119
**     Method      :  Cpu_SetWaitMode (bean MC9S12C32_80)
120
**
121
**     Description :
122
**         Set low power mode - Wait mode. For more information
123
**         about the wait mode see documentation of this CPU.
124
**         Release from Watch mode: Reset or interrupt
125
**     Parameters  : None
126
**     Returns     : Nothing
127
** ===================================================================
128
*/
129
/*
130
void Cpu_SetWaitMode(void)
131
 
132
**      This method is implemented as macro in the header module. **
133
*/
134
 
135
/*
136
** ===================================================================
137
**     Method      :  _EntryPoint (bean MC9S12C32_80)
138
**
139
**     Description :
140
**         This method is internal. It is used by Processor Expert
141
**         only.
142
** ===================================================================
143
*/
144
extern void _Startup(void);            /* Forward declaration of external startup function declared in file Start12.c */
145
#define INITRG_ADR  0x0011             /* Register map position register */
146
#pragma NO_FRAME
147
#pragma NO_EXIT
148
void _EntryPoint(void)
149
{
150
  /*** ### MC9S12C32_80 "Cpu" init code ... ***/
151
  /*** PE initialization code after reset ***/
152
  /* Initialization of the registers INITRG, INITRM, INITEE is done to protect them to be written accidentally later by the application */
153
  *(byte*)INITRG_ADR = 0;              /* Set the register map position */
154
  asm nop;                             /* nop instruction */
155
  INITRM=8;                            /* Set the RAM map position */
156
  /* MISC: ??=0,??=0,??=0,??=0,EXSTR1=0,EXSTR0=0,ROMHM=0,ROMON=1 */
157
  MISC=1;
158
  /* System clock initialization */
159
  CLKSEL=0;
160
  CLKSEL_PLLSEL = 0;                   /* Select clock source from XTAL */
161
  PLLCTL_PLLON = 0;                    /* Disable the PLL */
162
  SYNR = 23;                           /* Set the multiplier register */
163
  REFDV = 15;                          /* Set the divider register */
164
  PLLCTL = 192;
165
  PLLCTL_PLLON = 1;                    /* Enable the PLL */
166
  while(!CRGFLG_LOCK);                 /* Wait */
167
  CLKSEL_PLLSEL = 1;                   /* Select clock source from PLL */
168
  /*** End of PE initialization code after reset ***/
169
 
170
  __asm   jmp _Startup;                /* Jump to C startup code */
171
}
172
 
173
/*
174
** ===================================================================
175
**     Method      :  PE_low_level_init (bean MC9S12C32_80)
176
**
177
**     Description :
178
**         This method is internal. It is used by Processor Expert
179
**         only.
180
** ===================================================================
181
*/
182
void PE_low_level_init(void)
183
{
184
  /* Common initialization of the CPU registers */
185
/* TSCR1: TEN=0,TSWAI=0,TSFRZ=1 */
186
  output( TSCR1, input( TSCR1 ) & ~192 | 32 );
187
/* TCTL2: OM0=0,OL0=0 */
188
  output( TCTL2, input( TCTL2 ) & ~3 );
189
/* TCTL1: OM7=0,OL7=0 */
190
  output( TCTL1, input( TCTL1 ) & ~192 );
191
/* TIE: C0I=0 */
192
  output( TIE, input( TIE ) & ~1 );
193
/* TTOV: TOV0=0 */
194
  output( TTOV, input( TTOV ) & ~1 );
195
/* TSCR2: TOI=0,TCRE=1 */
196
  output( TSCR2, input( TSCR2 ) & ~128 | 8 );
197
/* TIOS: IOS7=1,IOS0=1 */
198
  output( TIOS, input( TIOS ) | 129 );
199
/* PPSP: PPSP0=0 */
200
  output( PPSP, input( PPSP ) & ~1 );
201
/* PERP: PERP0=1 */
202
  output( PERP, input( PERP ) | 1 );
203
/* DDRP: DDRP0=0 */
204
  output( DDRP, input( DDRP ) & ~1 );
205
/* PWMCTL: PSWAI=0,PFRZ=0 */
206
  output( PWMCTL, input( PWMCTL ) & ~12 );
207
/* PWMSDN: PWMIF=0,PWMIE=0,PWMRSTRT=0,PWMLVL=0,??=0,PWM7IN=0,PWM7INL=0,PWM7ENA=0 */
208
  output( PWMSDN, 0 );
209
  /* ### MC9S12C32_80 "Cpu" init code ... */
210
  /* ### ByteIO "Byte1" init code ... */
211
  PORTB = 0;                           /* Prepare value for output */
212
  DDRB = 255;                          /* Set direction to output */
213
  /* ### TimerInt "TickTimer" init code ... */
214
  TickTimer_Init();
215
  /* ### External interrupt "ButtonInterrupt" init code ... */
216
  PIEP_PIEP0 = 0;                      /* Disable interrupt */
217
 /* Common peripheral initialization - ENABLE */
218
/* TSCR1: TEN=1 */
219
  output( TSCR1, input( TSCR1 ) | 128 );
220
  INTCR_IRQEN = 0;                     /* Disable the IRQ interrupt. IRQ interrupt is enabled after CPU reset by default. */
221
  __DI();                              /* Disable interrupts */
222
}
223
 
224
/* END Cpu. */
225
 
226
/*
227
** ###################################################################
228
**
229
**     This file was created by UNIS Processor Expert 03.33 for
230
**     the Motorola HCS12 series of microcontrollers.
231
**
232
** ###################################################################
233
*/

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.