refractor device composite example

lib/segger_rtt/SEGGER_RTT_SES.c

@@ -0,0 +1,79 @@
+/*********************************************************************
+*                    SEGGER Microcontroller GmbH                     *
+*                        The Embedded Experts                        *
+**********************************************************************
+*                                                                    *
+*            (c) 2014 - 2018 SEGGER Microcontroller GmbH             *
+*                                                                    *
+*           www.segger.com     Support: support@segger.com           *
+*                                                                    *
+**********************************************************************
+*                                                                    *
+* All rights reserved.                                               *
+*                                                                    *
+* Redistribution and use in source and binary forms, with or         *
+* without modification, are permitted provided that the following    *
+* conditions are met:                                                *
+*                                                                    *
+* - Redistributions of source code must retain the above copyright   *
+*   notice, this list of conditions and the following disclaimer.    *
+*                                                                    *
+* - Neither the name of SEGGER Microcontroller GmbH                  *
+*   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 SEGGER Microcontroller GmbH 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.                                                            *
+*                                                                    *
+**********************************************************************
+--------  END-OF-HEADER  ---------------------------------------------
+File    : SEGGER_RTT_Syscalls_SES.c
+Purpose : Reimplementation of printf, puts and 
+          implementation of __putchar and __getchar using RTT in SES.
+          To use RTT for printf output, include this file in your 
+          application.
+----------------------------------------------------------------------
+*/
+#include "SEGGER_RTT.h"
+#include "__libc.h"
+#include <stdarg.h>
+#include <stdio.h>
+
+int printf(const char *fmt,...) {
+  char buffer[128];
+  va_list args;
+  va_start (args, fmt);
+  int n = vsnprintf(buffer, sizeof(buffer), fmt, args);
+  SEGGER_RTT_Write(0, buffer, n);
+  va_end(args);
+  return n;
+}
+
+int puts(const char *s) {
+  return SEGGER_RTT_WriteString(0, s);
+}
+
+int __putchar(int x, __printf_tag_ptr ctx) {
+  (void)ctx;
+  SEGGER_RTT_Write(0, (char *)&x, 1);
+  return x;
+}
+
+int __getchar() {
+  return SEGGER_RTT_WaitKey();
+}
+
+/****** End Of File *************************************************/