simmel-bootloader/segger/SEGGER_RTT_SES.c

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2018-04-03 10:16:46 +00:00
/*********************************************************************
* SEGGER MICROCONTROLLER GmbH & Co. KG *
* Solutions for real time microcontroller applications *
**********************************************************************
* *
* (c) 2014 - 2015 SEGGER Microcontroller GmbH & Co. KG *
* *
* www.segger.com Support: support@segger.com *
* *
**********************************************************************
* *
* All rights reserved. *
* *
* * This software may in its unmodified form be freely redistributed *
* in source 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 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. *
* *
**********************************************************************
-------- 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 *************************************************/