80 lines
3.8 KiB
C
80 lines
3.8 KiB
C
/*********************************************************************
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* SEGGER Microcontroller GmbH *
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* The Embedded Experts *
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**********************************************************************
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* *
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* (c) 2014 - 2018 SEGGER Microcontroller GmbH *
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* *
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* www.segger.com Support: support@segger.com *
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* *
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**********************************************************************
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* *
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* All rights reserved. *
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* *
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* Redistribution and use in source and binary forms, with or *
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* without modification, are permitted provided that the following *
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* conditions are met: *
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* *
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* - Redistributions of source code must retain the above copyright *
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* notice, this list of conditions and the following disclaimer. *
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* *
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* - Neither the name of SEGGER Microcontroller GmbH *
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* nor the names of its contributors may be used to endorse or *
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* promote products derived from this software without specific *
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* prior written permission. *
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* *
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, *
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
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* DISCLAIMED. *
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* IN NO EVENT SHALL SEGGER Microcontroller GmbH BE LIABLE FOR *
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT *
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; *
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE *
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
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* DAMAGE. *
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* *
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**********************************************************************
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-------- END-OF-HEADER ---------------------------------------------
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File : SEGGER_RTT_Syscalls_SES.c
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Purpose : Reimplementation of printf, puts and
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implementation of __putchar and __getchar using RTT in SES.
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To use RTT for printf output, include this file in your
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application.
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----------------------------------------------------------------------
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*/
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#include "SEGGER_RTT.h"
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#include "__libc.h"
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#include <stdarg.h>
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#include <stdio.h>
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int printf(const char *fmt,...) {
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char buffer[128];
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va_list args;
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va_start (args, fmt);
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int n = vsnprintf(buffer, sizeof(buffer), fmt, args);
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SEGGER_RTT_Write(0, buffer, n);
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va_end(args);
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return n;
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}
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int puts(const char *s) {
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return SEGGER_RTT_WriteString(0, s);
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}
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int __putchar(int x, __printf_tag_ptr ctx) {
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(void)ctx;
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SEGGER_RTT_Write(0, (char *)&x, 1);
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return x;
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}
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int __getchar() {
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return SEGGER_RTT_WaitKey();
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}
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/****** End Of File *************************************************/
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