44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
/*----------------------------------------------------------------------------
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* Name: Serial.c
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* Purpose: Low Level Serial Routines
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* Note(s): possible defines select the used communication interface:
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* __DBG_ITM - ITM SWO interface
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*----------------------------------------------------------------------------
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* This file is part of the uVision/ARM development tools.
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* This software may only be used under the terms of a valid, current,
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* end user licence from KEIL for a compatible version of KEIL software
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* development tools. Nothing else gives you the right to use this software.
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*
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* This software is supplied "AS IS" without warranties of any kind.
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*
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* Copyright (c) 2008-2011 Keil - An ARM Company. All rights reserved.
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*----------------------------------------------------------------------------*/
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#include <stm32f1xx.h> /* STM32F1xx Definitions */
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#include "Serial.h"
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#ifdef __DBG_ITM
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volatile int ITM_RxBuffer = ITM_RXBUFFER_EMPTY; /* CMSIS Debug Input */
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#endif
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/*----------------------------------------------------------------------------
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Write character to Serial Port
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*----------------------------------------------------------------------------*/
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int SER_PutChar (int c) {
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__IO int i = 0;
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ITM_SendChar(c);
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return (c);
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}
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/*----------------------------------------------------------------------------
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Read character from Serial Port (blocking read)
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*----------------------------------------------------------------------------*/
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int SER_GetChar (void) {
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while (ITM_CheckChar() != 1) __NOP();
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return (ITM_ReceiveChar());
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}
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