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segger-rtt-conf.h
1/*********************************************************************
2* SEGGER MICROCONTROLLER GmbH & Co. KG *
3* Solutions for real time microcontroller applications *
4**********************************************************************
5* *
6* (c) 2014 - 2015 SEGGER Microcontroller GmbH & Co. KG *
7* *
8* www.segger.com Support: support@segger.com *
9* *
10**********************************************************************
11----------------------------------------------------------------------
12File : SEGGER_RTT_Conf.h
13Purpose : Implementation of SEGGER real-time transfer (RTT) which
14 allows real-time communication on targets which support
15 debugger memory accesses while the CPU is running.
16---------------------------END-OF-HEADER------------------------------
17*/
18
19#ifndef SEGGER_RTT_CONF_H
20#define SEGGER_RTT_CONF_H
21
22#ifdef __ICCARM__
23 #include <intrinsics.h>
24#endif
25
26/*********************************************************************
27*
28* Defines, configurable
29*
30**********************************************************************
31*/
32
33#define SEGGER_RTT_MAX_NUM_UP_BUFFERS (4) // Max. number of up-buffers (T->H) available on this target (Default: 2)
34#define SEGGER_RTT_MAX_NUM_DOWN_BUFFERS (2) // Max. number of down-buffers (H->T) available on this target (Default: 2)
35
36#define BUFFER_SIZE_UP (8192) // Size of the buffer for terminal output of target, up to host (Default: 1k)
37#define BUFFER_SIZE_DOWN (16) // Size of the buffer for terminal input to target from host (Usually keyboard input) (Default: 16)
38
39#define SEGGER_RTT_PRINTF_BUFFER_SIZE (64u) // Size of buffer for RTT printf to bulk-send chars via RTT (Default: 64)
40
41#define SEGGER_RTT_MODE_DEFAULT SEGGER_RTT_MODE_NO_BLOCK_SKIP // Mode for pre-initialized terminal channel (buffer 0)
42
43//
44// Target is not allowed to perform other RTT operations while string still has not been stored completely.
45// Otherwise we would probably end up with a mixed string in the buffer.
46// If using RTT from within interrupts, multiple tasks or multi processors, define the SEGGER_RTT_LOCK() and SEGGER_RTT_UNLOCK() function here.
47//
48/*********************************************************************
49*
50* RTT lock configuration for SEGGER Embedded Studio,
51* Rowley CrossStudio and GCC
52*/
53#if (defined __SES_ARM) || (defined __CROSSWORKS_ARM) || (defined __GNUC__)
54 #ifdef __ARM_ARCH_6M__
55 #define SEGGER_RTT_LOCK(SavedState) { \
56 __asm__ volatile ("mrs %0, primask \n\t" \
57 "mov r1, $1 \n\t" \
58 "msr primask, r1 \n\t" \
59 : "=r" (SavedState) \
60 : \
61 : "r1" \
62 ); \
63 }
64
65 #define SEGGER_RTT_UNLOCK(SavedState) { \
66 __asm__ volatile ("msr primask, %0 \n\t" \
67 : \
68 : "r" (SavedState) \
69 : \
70 ); \
71 }
72
73 #elif (defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__))
74 #define SEGGER_RTT_LOCK(SavedState) { \
75 __asm__ volatile ("mrs %0, basepri \n\t" \
76 "mov r1, $128 \n\t" \
77 "msr basepri, r1 \n\t" \
78 : "=r" (SavedState) \
79 : \
80 : "r1" \
81 ); \
82 }
83 #define SEGGER_RTT_UNLOCK(SavedState) { \
84 __asm__ volatile ("msr basepri, %0 \n\t" \
85 : \
86 : "r" (SavedState) \
87 : \
88 ); \
89 }
90 #else
91 #define SEGGER_RTT_LOCK(SavedState) (void)(SavedState)
92 #define SEGGER_RTT_UNLOCK(SavedState) (void)(SavedState)
93 #endif
94#endif
95
96/*********************************************************************
97*
98* RTT lock configuration for IAR EWARM
99*/
100#ifdef __ICCARM__
101 #if (defined (__ARM7M__) && (__CORE__ == __ARM7M__))
102 #define SEGGER_RTT_LOCK(SavedState) { \
103 SavedState = __get_PRIMASK(); \
104 __set_PRIMASK(1); \
105 }
106
107 #define SEGGER_RTT_UNLOCK(SavedState) { \
108 __set_PRIMASK(SavedState); \
109 }
110 #elif (defined (__ARM7EM__) && (__CORE__ == __ARM7EM__))
111 #define SEGGER_RTT_LOCK(SavedState) { \
112 SavedState = __get_BASEPRI(); \
113 __set_BASEPRI(128); \
114 }
115
116 #define SEGGER_RTT_UNLOCK(SavedState) { \
117 __set_BASEPRI(SavedState); \
118 }
119 #endif
120#endif
121
122/*********************************************************************
123*
124* RTT lock configuration fallback
125*/
126#ifndef SEGGER_RTT_LOCK
127 #define SEGGER_RTT_LOCK(SavedState) (void)(SavedState)
128#endif
129
130#ifndef SEGGER_RTT_UNLOCK
131 #define SEGGER_RTT_UNLOCK(SavedState) (void)(SavedState)
132#endif
133
134#endif
135/*************************** End of file ****************************/