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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
/*********************************************************************
* SEGGER MICROCONTROLLER GmbH & Co. KG *
* Solutions for real time microcontroller applications *
**********************************************************************
* *
* (c) 2014 - 2016 SEGGER Microcontroller GmbH & Co. KG *
* *
* www.segger.com Support: support@segger.com *
* *
**********************************************************************
* *
* SEGGER RTT * Real Time Transfer for embedded targets *
* *
**********************************************************************
* *
* All rights reserved. *
* *
* * This software may in its unmodified form be freely redistributed *
* in source, linkable, or executable form. *
* * The source code may be modified, provided the source code *
* retains the above copyright notice, this list of conditions and *
* the following disclaimer. *
* * Modified versions of this software in source, executable, or *
* linkable form may not be distributed without prior consent of *
* SEGGER. *
* * This software may only be used for communication with SEGGER *
* J-Link debug probes. *
* *
* 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 SEGGER Microcontroller 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. *
* *
**********************************************************************
* *
* RTT version: 6.00e *
* *
**********************************************************************
----------------------------------------------------------------------
File : SEGGER_RTT_Conf.h
Purpose : Implementation of SEGGER real-time transfer (RTT) which
allows real-time communication on targets which support
debugger memory accesses while the CPU is running.
Revision: $Rev: 3892 $
---------------------------END-OF-HEADER------------------------------
*/
#ifndef SEGGER_RTT_CONF_H
#define SEGGER_RTT_CONF_H
#ifdef __IAR_SYSTEMS_ICC__
#include <intrinsics.h>
#endif
/*********************************************************************
*
* Defines, configurable
*
**********************************************************************
*/
#define SEGGER_RTT_MAX_NUM_UP_BUFFERS (3) // Max. number of up-buffers (T->H) available on this target (Default: 3)
#define SEGGER_RTT_MAX_NUM_DOWN_BUFFERS (3) // Max. number of down-buffers (H->T) available on this target (Default: 3)
#define BUFFER_SIZE_UP (64) // Size of the buffer for terminal output of target, up to host (Default: 1k)
#define BUFFER_SIZE_DOWN (16) // Size of the buffer for terminal input to target from host (Usually keyboard input) (Default: 16)
#define SEGGER_RTT_PRINTF_BUFFER_SIZE (64u) // Size of buffer for RTT printf to bulk-send chars via RTT (Default: 64)
#define SEGGER_RTT_MODE_DEFAULT SEGGER_RTT_MODE_NO_BLOCK_SKIP // Mode for pre-initialized terminal channel (buffer 0)
//
// Target is not allowed to perform other RTT operations while string still has not been stored completely.
// Otherwise we would probably end up with a mixed string in the buffer.
// If using RTT from within interrupts, multiple tasks or multi processors, define the SEGGER_RTT_LOCK() and SEGGER_RTT_UNLOCK() function here.
//
// SEGGER_RTT_MAX_INTERRUPT_PRIORITY can be used in the sample lock routines on Cortex-M3/4.
// Make sure to mask all interrupts which can send RTT data, i.e. generate SystemView events, or cause task switches.
// When high-priority interrupts must not be masked while sending RTT data, SEGGER_RTT_MAX_INTERRUPT_PRIORITY needs to be adjusted accordingly.
// (Higher priority = lower priority number)
// Default value for embOS: 128u
// Default configuration in FreeRTOS: configMAX_SYSCALL_INTERRUPT_PRIORITY: ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
// In case of doubt mask all interrupts: 1 << (8 - BASEPRI_PRIO_BITS) i.e. 1 << 5 when 3 bits are implemented in NVIC
// or define SEGGER_RTT_LOCK() to completely disable interrupts.
//
#define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20) // Interrupt priority to lock on SEGGER_RTT_LOCK on Cortex-M3/4 (Default: 0x20)
/*********************************************************************
*
* RTT lock configuration for SEGGER Embedded Studio,
* Rowley CrossStudio and GCC
*/
#if (defined __SES_ARM) || (defined __CROSSWORKS_ARM) || (defined __GNUC__)
#ifdef __ARM_ARCH_6M__
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
__asm volatile ("mrs %0, primask \n\t" \
"mov r1, $1 \n\t" \
"msr primask, r1 \n\t" \
: "=r" (LockState) \
: \
: "r1" \
);
#define SEGGER_RTT_UNLOCK() __asm volatile ("msr primask, %0 \n\t" \
: \
: "r" (LockState) \
: \
); \
}
#elif (defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__))
#ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY
#define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
#endif
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
__asm volatile ("mrs %0, basepri \n\t" \
"mov r1, %1 \n\t" \
"msr basepri, r1 \n\t" \
: "=r" (LockState) \
: "i"(SEGGER_RTT_MAX_INTERRUPT_PRIORITY) \
: "r1" \
);
#define SEGGER_RTT_UNLOCK() __asm volatile ("msr basepri, %0 \n\t" \
: \
: "r" (LockState) \
: \
); \
}
#elif defined(__ARM_ARCH_7A__)
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
__asm volatile ("mrs r1, CPSR \n\t" \
"mov %0, r1 \n\t" \
"orr r1, r1, #0xC0 \n\t" \
"msr CPSR_c, r1 \n\t" \
: "=r" (LockState) \
: \
: "r1" \
);
#define SEGGER_RTT_UNLOCK() __asm volatile ("mov r0, %0 \n\t" \
"mrs r1, CPSR \n\t" \
"bic r1, r1, #0xC0 \n\t" \
"and r0, r0, #0xC0 \n\t" \
"orr r1, r1, r0 \n\t" \
"msr CPSR_c, r1 \n\t" \
: \
: "r" (LockState) \
: "r0", "r1" \
); \
}
#else
#define SEGGER_RTT_LOCK()
#define SEGGER_RTT_UNLOCK()
#endif
#endif
/*********************************************************************
*
* RTT lock configuration for IAR EWARM
*/
#ifdef __ICCARM__
#if (defined (__ARM6M__) && (__CORE__ == __ARM6M__))
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
LockState = __get_PRIMASK(); \
__set_PRIMASK(1);
#define SEGGER_RTT_UNLOCK() __set_PRIMASK(LockState); \
}
#elif ((defined (__ARM7EM__) && (__CORE__ == __ARM7EM__)) || (defined (__ARM7M__) && (__CORE__ == __ARM7M__)))
#ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY
#define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
#endif
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
LockState = __get_BASEPRI(); \
__set_BASEPRI(SEGGER_RTT_MAX_INTERRUPT_PRIORITY);
#define SEGGER_RTT_UNLOCK() __set_BASEPRI(LockState); \
}
#endif
#endif
/*********************************************************************
*
* RTT lock configuration for IAR RX
*/
#ifdef __ICCRX__
#define SEGGER_RTT_LOCK() { \
unsigned long LockState; \
LockState = __get_interrupt_state(); \
__disable_interrupt();
#define SEGGER_RTT_UNLOCK() __set_interrupt_state(LockState); \
}
#endif
/*********************************************************************
*
* RTT lock configuration for KEIL ARM
*/
#ifdef __CC_ARM
#if (defined __TARGET_ARCH_6S_M)
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
register unsigned char PRIMASK __asm( "primask"); \
LockState = PRIMASK; \
PRIMASK = 1u; \
__schedule_barrier();
#define SEGGER_RTT_UNLOCK() PRIMASK = LockState; \
__schedule_barrier(); \
}
#elif (defined(__TARGET_ARCH_7_M) || defined(__TARGET_ARCH_7E_M))
#ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY
#define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
#endif
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
register unsigned char BASEPRI __asm( "basepri"); \
LockState = BASEPRI; \
BASEPRI = SEGGER_RTT_MAX_INTERRUPT_PRIORITY; \
__schedule_barrier();
#define SEGGER_RTT_UNLOCK() BASEPRI = LockState; \
__schedule_barrier(); \
}
#endif
#endif
/*********************************************************************
*
* RTT lock configuration fallback
*/
#ifndef SEGGER_RTT_LOCK
#define SEGGER_RTT_LOCK() // Lock RTT (nestable) (i.e. disable interrupts)
#endif
#ifndef SEGGER_RTT_UNLOCK
#define SEGGER_RTT_UNLOCK() // Unlock RTT (nestable) (i.e. enable previous interrupt lock state)
#endif
#endif
/*************************** End of file ****************************/
|
