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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/************************************************************************************
* configs/tm4c123g-launchpad/src/tm4c123g-launchpad.h
*
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __CONFIGS_TM4C123G_LAUNCHPAD_TM4C123G_LAUNCHPAD_H
#define __CONFIGS_TM4C123G_LAUNCHPAD_TM4C123G_LAUNCHPAD_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <nuttx/compiler.h>
#include "chip.h"
#include "tiva_gpio.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Configuration ********************************************************************/
#define HAVE_AT24 1
/* How many SSI modules does this chip support? */
#if TIVA_NSSI < 1
# undef CONFIG_TIVA_SSI0
# undef CONFIG_TIVA_SSI1
#elif TIVA_NSSI < 2
# undef CONFIG_TIVA_SSI1
#endif
/* AT24 Serial EEPROM
*
* A AT24C512 Serial EEPPROM was used for tested I2C. There are no I2C
* devices on-board the Launchpad, but an external serial EEPROM module
* module was used.
*
* The Serial EEPROM was mounted on an external adaptor board and connected
* to the LaunchPad thusly:
*
* - VCC -- VCC
* - GND -- GND
* - PB2 -- SCL
* - PB3 -- SDA
*/
#define AT24_BUS 0
#define AT24_MINOR 0
#if !defined(CONFIG_MTD_AT24XX) || !defined(CONFIG_TIVA_I2C0)
# undef HAVE_AT24
#endif
/* Can't support AT25 features if mountpoints are disabled or if we were not
* asked to mount the AT25 part
*/
#if defined(CONFIG_DISABLE_MOUNTPOINT) || \
!defined(CONFIG_TM4C123G_LAUNCHPAD_AT24_BLOCKMOUNT)
# undef HAVE_AT24
#endif
/* If we are going to mount the AT25, then they user must also have told
* us what to do with it by setting one of these.
*/
#ifndef CONFIG_FS_NXFFS
# undef CONFIG_TM4C123G_LAUNCHPAD_AT24_NXFFS
#endif
#if !defined(CONFIG_TM4C123G_LAUNCHPAD_AT24_FTL) && \
!defined(CONFIG_TM4C123G_LAUNCHPAD_AT24_NXFFS)
# undef HAVE_AT24
#endif
#if defined(CONFIG_TM4C123G_LAUNCHPAD_AT24_FTL) && \
defined(CONFIG_TM4C123G_LAUNCHPAD_AT24_NXFFS)
# warning Both CONFIG_TM4C123G_LAUNCHPAD_AT24_FTL and CONFIG_TM4C123G_LAUNCHPAD_AT24_NXFFS are set
# warning Ignoring CONFIG_TM4C123G_LAUNCHPAD_AT24_NXFFS
# undef CONFIG_TM4C123G_LAUNCHPAD_AT24_NXFFS
#endif
/* TM4C123G LaunchPad ***************************************************************/
/* The TM4C123G LaunchPad has a single RGB LED. There is only one visible LED which
* will vary in color. But, from the standpoint of the firmware, this appears as
* three LEDs:
*
* BOARD_LED_R -- Connected to PF1
* BOARD_LED_G -- Connected to PF3
* BOARD_LED_B -- Connected to PF2
*
* If CONFIG_ARCH_LEDS is defined, then automated support for the LaunchPad LEDs
* will be included in the build:
*
* OFF:
* - OFF means that the OS is still initializing. Initialization is very fast so
* if you see this at all, it probably means that the system is hanging up
* somewhere in the initialization phases.
*
* GREEN or GREEN-ish
* - This means that the OS completed initialization.
*
* Bluish:
* - Whenever and interrupt or signal handler is entered, the BLUE LED is
* illuminated and extinguished when the interrupt or signal handler exits.
* This will add a BLUE-ish tinge to the LED.
*
* Redish:
* - If a recovered assertion occurs, the RED component will be illuminated
* briefly while the assertion is handled. You will probably never see this.
*
* Flashing RED:
* - In the event of a fatal crash, the BLUE and GREEN components will be
* extinguished and the RED component will FLASH at a 2Hz rate.
*
* RED GREEN BLUE
* LED_STARTED 0 OFF OFF OFF
* LED_HEAPALLOCATE 0 OFF OFF OFF
* LED_IRQSENABLED 0 OFF OFF OFF
* LED_STACKCREATED 1 OFF ON OFF
* LED_INIRQ 2 NC NC ON (momentary)
* LED_SIGNAL 2 NC NC ON (momentary)
* LED_ASSERTION 3 ON NC NC (momentary)
* LED_PANIC 3 ON OFF OFF (flashing 2Hz)
*/
#define GPIO_LED_R (GPIO_FUNC_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTF | GPIO_PIN_1)
#define GPIO_LED_G (GPIO_FUNC_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTF | GPIO_PIN_3)
#define GPIO_LED_B (GPIO_FUNC_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTF | GPIO_PIN_2)
/* The TM4C123G LaunchPad has a two buttons:
*
* BOARD_SW1 -- Connected to PF4
* BOARD_SW2 -- Connected to PF0
*/
#define GPIO_SW1 (GPIO_FUNC_INTERRUPT | GPIO_INT_BOTHEDGES | GPIO_PORTF | GPIO_PIN_1)
#define GPIO_SW2 (GPIO_FUNC_INTERRUPT | GPIO_INT_BOTHEDGES | GPIO_PORTF | GPIO_PIN_1)
/************************************************************************************
* Public Functions
************************************************************************************/
#ifndef __ASSEMBLY__
/************************************************************************************
* Name: tm4c_ssiinitialize
*
* Description:
* Called to configure SPI chip select GPIO pins for the TM4C123G LaunchPad.
*
************************************************************************************/
void weak_function tm4c_ssiinitialize(void);
/****************************************************************************
* Name: tm4c_ledinit
*
* Description:
* Called to initialize the on-board LEDs.
*
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void tm4c_ledinit(void);
#endif
/****************************************************************************
* Name: tm4c_bringup
*
* Description:
* Bring up board features
*
****************************************************************************/
int tm4c_bringup(void);
/****************************************************************************
* Name: tm4c_at24_automount
*
* Description:
* Initialize and configure the AT24 serial EEPROM
*
****************************************************************************/
#ifdef HAVE_AT24
int tm4c_at24_automount(int minor);
#endif
#endif /* __ASSEMBLY__ */
#endif /* __CONFIGS_TM4C123G_LAUNCHPAD_TM4C123G_LAUNCHPAD_H */
|
