| [6] | 1 | /********************************************************************* |
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| 2 | * SEGGER Microcontroller GmbH * |
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| 3 | * The Embedded Experts * |
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| 4 | ********************************************************************** |
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| 5 | * * |
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| 6 | * (c) 2014 - 2019 SEGGER Microcontroller GmbH * |
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| 7 | * * |
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| 8 | * www.segger.com Support: support@segger.com * |
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| 9 | * * |
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| 10 | ********************************************************************** |
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| 11 | * * |
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| 12 | * All rights reserved. * |
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| 13 | * * |
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| 14 | * Redistribution and use in source and binary forms, with or * |
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| 15 | * without modification, are permitted provided that the following * |
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| 16 | * conditions are met: * |
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| 17 | * * |
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| 18 | * - Redistributions of source code must retain the above copyright * |
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| 19 | * notice, this list of conditions and the following disclaimer. * |
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| 20 | * * |
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| 21 | * - Neither the name of SEGGER Microcontroller GmbH * |
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| 22 | * nor the names of its contributors may be used to endorse or * |
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| 23 | * promote products derived from this software without specific * |
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| 24 | * prior written permission. * |
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| 25 | * * |
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| 26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND * |
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| 27 | * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * |
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| 28 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * |
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| 29 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * |
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| 30 | * DISCLAIMED. * |
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| 31 | * IN NO EVENT SHALL SEGGER Microcontroller GmbH BE LIABLE FOR * |
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| 32 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * |
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| 33 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT * |
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| 34 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * |
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| 35 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * |
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| 36 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * |
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| 37 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * |
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| 38 | * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * |
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| 39 | * DAMAGE. * |
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| 40 | * * |
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| 41 | ********************************************************************** |
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| 42 | -------- END-OF-HEADER --------------------------------------------- |
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| 43 | File : SEGGER_RTT_Syscalls_SES.c |
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| 44 | Purpose : Reimplementation of printf, puts and |
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| 45 | implementation of __putchar and __getchar using RTT in SES. |
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| 46 | To use RTT for printf output, include this file in your |
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| 47 | application. |
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| 48 | ---------------------------------------------------------------------- |
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| 49 | */ |
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| 50 | #include "SEGGER_RTT.h" |
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| 51 | #include "__libc.h" |
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| 52 | #include <stdarg.h> |
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| 53 | #include <stdio.h> |
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| 54 | |
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| 55 | int printf(const char *fmt,...) { |
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| 56 | char buffer[128]; |
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| 57 | va_list args; |
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| 58 | va_start (args, fmt); |
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| 59 | int n = vsnprintf(buffer, sizeof(buffer), fmt, args); |
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| 60 | SEGGER_RTT_Write(0, buffer, n); |
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| 61 | va_end(args); |
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| 62 | return n; |
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| 63 | } |
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| 64 | |
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| 65 | int puts(const char *s) { |
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| 66 | return SEGGER_RTT_WriteString(0, s); |
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| 67 | } |
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| 68 | |
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| 69 | int __putchar(int x, __printf_tag_ptr ctx) { |
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| 70 | (void)ctx; |
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| 71 | SEGGER_RTT_Write(0, (char *)&x, 1); |
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| 72 | return x; |
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| 73 | } |
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| 74 | |
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| 75 | int __getchar() { |
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| 76 | return SEGGER_RTT_WaitKey(); |
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| 77 | } |
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| 78 | |
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| 79 | /****** End Of File *************************************************/ |
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