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53 lines
2.7 KiB
53 lines
2.7 KiB
/*******************************************************************************
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*
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* uart.h - Definition file for UART communication using MSP430 TimerA
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* - peripheral
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 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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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* Neither the name of Texas Instruments Incorporated nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*
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******************************************************************************/
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//------------------------------------------------------------------------------
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// Hardware-related definitions
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//------------------------------------------------------------------------------
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#define UART_TXD 0x02 // TXD on P1.1 (Timer0_A.OUT0)
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#define UART_RXD 0x04 // RXD on P1.2 (Timer0_A.CCI1A)
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//------------------------------------------------------------------------------
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// Conditions for 9600 Baud SW UART, SMCLK = 1MHz
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//------------------------------------------------------------------------------
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#define UART_TBIT_DIV_2 (1000000 / (9600 * 2))
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#define UART_TBIT (1000000 / 9600)
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#include "msp430g2452.h"
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void TimerA_UART_init(void);
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void TimerA_UART_shutdown(void);
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void TimerA_UART_tx(unsigned char byte);
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