1 /********************************************************************* 2 * SEGGER Microcontroller GmbH * 3 * The Embedded Experts * 4 ********************************************************************** 5 * * 6 * (c) 1995 - 2019 SEGGER Microcontroller GmbH * 7 * * 8 * www.segger.com Support: [email protected] * 9 * * 10 ********************************************************************** 11 * * 12 * SEGGER RTT * Real Time Transfer for embedded targets * 13 * * 14 ********************************************************************** 15 * * 16 * All rights reserved. * 17 * * 18 * SEGGER strongly recommends to not make any changes * 19 * to or modify the source code of this software in order to stay * 20 * compatible with the RTT protocol and J-Link. * 21 * * 22 * Redistribution and use in source and binary forms, with or * 23 * without modification, are permitted provided that the following * 24 * condition is met: * 25 * * 26 * o Redistributions of source code must retain the above copyright * 27 * notice, this condition and the following disclaimer. * 28 * * 29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND * 30 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * 31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * 32 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * 33 * DISCLAIMED. IN NO EVENT SHALL SEGGER Microcontroller BE LIABLE FOR * 34 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * 35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT * 36 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * 37 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * 38 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * 39 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * 40 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * 41 * DAMAGE. * 42 * * 43 ********************************************************************** 44 ---------------------------END-OF-HEADER------------------------------ 45 File : SEGGER_RTT_Syscalls_IAR.c 46 Purpose : Low-level functions for using printf() via RTT in IAR. 47 To use RTT for printf output, include this file in your 48 application and set the Library Configuration to Normal. 49 Revision: $Rev: 24316 $ 50 ---------------------------------------------------------------------- 51 */ 52 #ifdef __IAR_SYSTEMS_ICC__ 53 54 // 55 // Since IAR EWARM V8 and EWRX V4, yfuns.h is considered as deprecated and LowLevelIOInterface.h 56 // shall be used instead. To not break any compatibility with older compiler versions, we have a 57 // version check in here. 58 // 59 #if ((defined __ICCARM__) && (__VER__ >= 8000000)) || ((defined __ICCRX__) && (__VER__ >= 400)) 60 #include <LowLevelIOInterface.h> 61 #else 62 #include <yfuns.h> 63 #endif 64 65 #include "SEGGER_RTT.h" 66 #pragma module_name = "?__write" 67 68 /********************************************************************* 69 * 70 * Function prototypes 71 * 72 ********************************************************************** 73 */ 74 size_t __write(int handle, const unsigned char * buffer, size_t size); 75 76 /********************************************************************* 77 * 78 * Global functions 79 * 80 ********************************************************************** 81 */ 82 /********************************************************************* 83 * 84 * __write() 85 * 86 * Function description 87 * Low-level write function. 88 * Standard library subroutines will use this system routine 89 * for output to all files, including stdout. 90 * Write data via RTT. 91 */ 92 size_t __write(int handle, const unsigned char * buffer, size_t size) { 93 (void) handle; /* Not used, avoid warning */ 94 SEGGER_RTT_Write(0, (const char*)buffer, size); 95 return size; 96 } 97 98 /********************************************************************* 99 * 100 * __write_buffered() 101 * 102 * Function description 103 * Low-level write function. 104 * Standard library subroutines will use this system routine 105 * for output to all files, including stdout. 106 * Write data via RTT. 107 */ 108 size_t __write_buffered(int handle, const unsigned char * buffer, size_t size) { 109 (void) handle; /* Not used, avoid warning */ 110 SEGGER_RTT_Write(0, (const char*)buffer, size); 111 return size; 112 } 113 114 #endif 115 /****** End Of File *************************************************/ 116