source: trunk/firmware/SEGGER_RTT_SES.c @ 6

Last change on this file since 6 was 6, checked in by f.jahn, 3 months ago
File size: 3.9 KB
RevLine 
[6]1/*********************************************************************
2*                    SEGGER Microcontroller GmbH                     *
3*                        The Embedded Experts                        *
4**********************************************************************
5*                                                                    *
6*            (c) 2014 - 2020 SEGGER Microcontroller GmbH             *
7*                                                                    *
8*           www.segger.com     Support: support@segger.com           *
9*                                                                    *
10**********************************************************************
11*                                                                    *
12* All rights reserved.                                               *
13*                                                                    *
14* Redistribution and use in source and binary forms, with or         *
15* without modification, are permitted provided that the following    *
16* conditions are met:                                                *
17*                                                                    *
18* - Redistributions of source code must retain the above copyright   *
19*   notice, this list of conditions and the following disclaimer.    *
20*                                                                    *
21* - Neither the name of SEGGER Microcontroller GmbH                  *
22*   nor the names of its contributors may be used to endorse or      *
23*   promote products derived from this software without specific     *
24*   prior written permission.                                        *
25*                                                                    *
26* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND             *
27* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,        *
28* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF           *
29* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE           *
30* DISCLAIMED.                                                        *
31* IN NO EVENT SHALL SEGGER Microcontroller GmbH BE LIABLE FOR        *
32* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR           *
33* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT  *
34* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;    *
35* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF      *
36* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT          *
37* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE  *
38* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH   *
39* DAMAGE.                                                            *
40*                                                                    *
41**********************************************************************
42--------  END-OF-HEADER  ---------------------------------------------
43File    : SEGGER_RTT_Syscalls_SES.c
44Purpose : Reimplementation of printf, puts and
45          implementation of __putchar and __getchar using RTT in SES.
46          To use RTT for printf output, include this file in your
47          application.
48----------------------------------------------------------------------
49*/
50#include "SEGGER_RTT.h"
51#include "__libc.h"
52#include <stdarg.h>
53#include <stdio.h>
54
55int printf(const char *fmt,...) {
56  char buffer[128];
57  va_list args;
58  va_start (args, fmt);
59  int n = vsnprintf(buffer, sizeof(buffer), fmt, args);
60  SEGGER_RTT_Write(0, buffer, n);
61  va_end(args);
62  return n;
63}
64
65int puts(const char *s) {
66  return SEGGER_RTT_WriteString(0, s);
67}
68
69int __putchar(int x, __printf_tag_ptr ctx) {
70  (void)ctx;
71  SEGGER_RTT_Write(0, (char *)&x, 1);
72  return x;
73}
74
75int __getchar() {
76  return SEGGER_RTT_WaitKey();
77}
78
79/****** End Of File *************************************************/
Note: See TracBrowser for help on using the repository browser.