1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/* *****************************************************************************
* The MIT License
*
* Copyright (c) 2010 LeafLabs LLC.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* ****************************************************************************/
#ifndef __HARDWARE_H
#define __HARDWARE_H
#include "usb_type.h"
/* macro'd register and peripheral definitions */
#define RCC ((u32)0x40021000)
#define FLASH ((u32)0x40022000)
#define GPIOA ((u32)0x40010800)
#define GPIOC ((u32)0x40011000)
#define USB_PACKET_BUFFER ((u32)0x40006000)
#define RCC_CR RCC
#define RCC_CFGR RCC + 0x04
#define RCC_CIR RCC + 0x08
#define RCC_AHBENR RCC + 0x14
#define RCC_APB2ENR RCC + 0x18
#define RCC_APB1ENR RCC + 0x16
#define GPIO_CRL(port) port
#define GPIO_CRH(port) port+0x04
#define GPIO_ODR(port) port+0x0c
#define GPIO_BSRR(port) port+0x10
#define SCS_BASE ((u32)0xE000E000)
#define NVIC_BASE (SCS_BASE + 0x0100)
#define SCB_BASE (SCS_BASE + 0x0D00)
#define SCS 0xE000E000
#define NVIC (SCS+0x100)
#define SCB (SCS+0xD00)
#define STK (SCS+0x10)
#define SCB_VTOR (SCB+0x08)
#define STK_CTRL (STK+0x00)
#define USB_HP_IRQ ((u8)0x13)
#define USB_LP_IRQ ((u8)0x14)
/* AIRCR */
#define AIRCR_RESET 0x05FA0000
#define AIRCR_RESET_REQ (AIRCR_RESET | (u32)0x04);
/* temporary copyage of example from kiel */
#define __VAL(__TIMCLK, __PERIOD) ((__TIMCLK/1000000UL)*__PERIOD)
#define __PSC(__TIMCLK, __PERIOD) (((__VAL(__TIMCLK, __PERIOD)+49999UL)/50000UL) - 1)
#define __ARR(__TIMCLK, __PERIOD) ((__VAL(__TIMCLK, __PERIOD)/(__PSC(__TIMCLK, __PERIOD)+1)) - 1)
/* todo, wrap in do whiles for the natural ; */
#define SET_REG(addr,val) *(vu32*)(addr)=val
#define GET_REG(addr) *(vu32*)(addr)
#if defined(__cplusplus)
extern "C" {
#endif
/* todo: there must be some major misunderstanding in how we access regs. The direct access approach (GET_REG)
causes the usb init to fail upon trying to activate RCC_APB1 |= 0x00800000. However, using the struct approach
from ST, it works fine...temporarily switching to that approach */
typedef struct
{
vu32 CR;
vu32 CFGR;
vu32 CIR;
vu32 APB2RSTR;
vu32 APB1RSTR;
vu32 AHBENR;
vu32 APB2ENR;
vu32 APB1ENR;
vu32 BDCR;
vu32 CSR;
} RCC_RegStruct;
#define pRCC ((RCC_RegStruct *) RCC)
typedef struct {
vu32 ISER[2];
u32 RESERVED0[30];
vu32 ICER[2];
u32 RSERVED1[30];
vu32 ISPR[2];
u32 RESERVED2[30];
vu32 ICPR[2];
u32 RESERVED3[30];
vu32 IABR[2];
u32 RESERVED4[62];
vu32 IPR[15];
} NVIC_TypeDef;
typedef struct {
u8 NVIC_IRQChannel;
u8 NVIC_IRQChannelPreemptionPriority;
u8 NVIC_IRQChannelSubPriority;
USB_Bool NVIC_IRQChannelCmd; /* TRUE for enable */
} NVIC_InitTypeDef;
typedef struct {
vuc32 CPUID;
vu32 ICSR;
vu32 VTOR;
vu32 AIRCR;
vu32 SCR;
vu32 CCR;
vu32 SHPR[3];
vu32 SHCSR;
vu32 CFSR;
vu32 HFSR;
vu32 DFSR;
vu32 MMFAR;
vu32 BFAR;
vu32 AFSR;
} SCB_TypeDef;
void setPin (u32 bank, u8 pin);
void resetPin (u32 bank, u8 pin);
void systemHardReset(void);
void systemReset (void);
void setupCLK (void);
void nvicInit (NVIC_InitTypeDef*);
void nvicDisableInterrupts(void);
#if defined(__cplusplus)
}
#endif
#endif
|
