170 lines
5.9 KiB
C
Executable File
170 lines
5.9 KiB
C
Executable File
/* --COPYRIGHT--,BSD
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* Copyright (c) 2019, Texas Instruments Incorporated
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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 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 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 "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT 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 LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* --/COPYRIGHT--*/
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//*****************************************************************************
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// HAL IO functions
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//
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// Texas Instruments, Inc.
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// *****************************************************************************
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#include <msp430.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <HAL.h>
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#include "HAL_Config_Private.h"
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// Simple callbacks to functions in main
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extern void ButtonCallback_SW1(void);
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extern void ButtonCallback_SW2(void);
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/**** Functions **************************************************************/
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void HAL_IO_Init(void)
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{
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// Port output low to save power consumption
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// P1.0 = RED LED, Output Low
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// P1.1 = Unused, Output Low
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// P1.2 = Unused, Output Low
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// P1.3 = Unused, Output Low
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// P1.4 = Unused, Output Low
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// P1.5 = Unused, Output Low
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// P1.6 = Unused, Output Low
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// P1.7 = Unused, Output Low
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P1OUT = (0x00);
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P1DIR = (BIT0 | BIT1 | BIT2 | BIT3 | BIT4 | BIT5 | BIT6 | BIT7);
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// P2.0 = Unused, Output Low
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// P2.1 = Unused, Output Low
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// P2.2 = Unused, Output Low
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// P2.3 = SW2, Input Pull-up
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// P2.4 = Unused, Output Low
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// P2.5 = Unused, Output Low
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// P2.6 = Unused, Output Low
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// P2.7 = Unused, Output Low
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P2OUT = (BIT3);
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P2DIR = (BIT0 | BIT1 | BIT2 | BIT4 | BIT5 | BIT6 | BIT7);
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P2REN |= (BIT3);
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// P3.0 = Unused, Output Low
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// P3.1 = Unused, Output Low
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// P3.2 = Unused, Output Low
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// P3.3 = Unused, Output Low
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// P3.4 = Unused, Output Low
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// P3.5 = Unused, Output Low
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// P3.6 = Unused, Output Low
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// P3.7 = Unused, Output Low
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P3OUT = (0x00);
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P3DIR = (BIT0 | BIT1 | BIT2 | BIT3 | BIT4 | BIT5 | BIT6 | BIT7);
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// P4.0 = Unused, Output Low
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// P4.1 = SW1, Input pull-up
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// P4.2 = LP UART RXD, Input pull-up or UART
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// P4.3 = LP UART TXD, Input pull-up or UART
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// P4.4 = NC, Output Low
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// P4.5 = NC, Output Low
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// P4.6 = NC, Output Low
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// P4.7 = NC, Output Low
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P4OUT = (BIT1);
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P4DIR = (BIT0 | BIT4 | BIT5 | BIT6 | BIT7);
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P4REN |= (BIT1);
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P4SEL0 |= (BIT2 | BIT3);
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P4SEL1 &= ~(BIT2 | BIT3);
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// P5.0 = Unused, Output Low
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// P5.1 = Unused, Output Low
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// P5.2 = Unused, Output Low
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// P5.3 = Unused, Output Low
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// P5.4 = Unused, Output Low
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// P5.5 = N/A, Output Low
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// P5.6 = N/A, Output Low
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// P5.7 = N/A, Output Low
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P5OUT = (0x00);
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P5DIR = (BIT0 | BIT1 | BIT2 | BIT3 | BIT4 | BIT5 | BIT6 | BIT7);
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// P6.0 = Unused, Output Low
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// P6.1 = Unused, Output Low
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// P6.2 = Unused, Output Low
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// P6.3 = Unused, Output Low
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// P6.4 = Unused, Output Low
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// P6.5 = Unused, Output Low
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// P6.6 = Unused, Output Low
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// P6.7 = N/A, Output Low
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P6OUT = (0x00);
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P6DIR = (BIT0 | BIT1 | BIT2 | BIT3 | BIT4 | BIT5 | BIT6 | BIT7);
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PM5CTL0 &= ~LOCKLPM5; // Disable the GPIO power-on default high-impedance mode
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// to activate previously configured port settings
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}
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void HAL_IO_InitButtons(void)
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{
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// Configure SW1 and SW2 for interrupts (pins set as input-pullup during GPIO initialization)
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P4IES = BIT1; // Hi/Low edge
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P4IFG = 0; // Clear flags
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P4IE = BIT1; // interrupt enabled
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P2IES = BIT3; // Hi/Low edge
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P2IFG = 0; // Clear flags
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P2IE = BIT3; // interrupt enabled
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}
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// Port 4 interrupt service routine
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#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
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#pragma vector=PORT4_VECTOR
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__interrupt void Port_4(void)
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#elif defined(__GNUC__)
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void __attribute__ ((interrupt(PORT1_VECTOR))) Port_3 (void)
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#else
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#error Compiler not supported!
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#endif
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{
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ButtonCallback_SW1();
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P4IFG &= ~BIT1; // Clear IFG
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__bic_SR_register_on_exit(LPM3_bits); // Exit LPM3
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}
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// Port 2 interrupt service routine
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#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
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#pragma vector=PORT2_VECTOR
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__interrupt void Port_2(void)
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#elif defined(__GNUC__)
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void __attribute__ ((interrupt(PORT1_VECTOR))) Port_2 (void)
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#else
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#error Compiler not supported!
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#endif
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{
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ButtonCallback_SW2();
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P2IFG &= ~BIT3; // Clear IFG
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__bic_SR_register_on_exit(LPM3_bits); // Exit LPM3
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}
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