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Add FreeRTOS-Plus directory.

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Richard Barry 2012-08-11 21:34:11 +00:00
parent 7bd5f21ad5
commit f508a5f653
6798 changed files with 134949 additions and 19 deletions
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76
FreeRTOS/Demo/MSP430X_MSP430F5438_IAR/MSP-EXP430F5438_HAL/hal_buttons.c Normal file
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/**
* @file hal_buttons.c
*
* Copyright 2010 Texas Instruments, Inc.
***************************************************************************/
#include "msp430.h"
#include "hal_MSP-EXP430F5438.h"
/**********************************************************************//**
* @brief Initializes the GPIO ports to act as buttons.
*
* @param buttonsMask The mask that specifies the button pins.
*
* @return none
*************************************************************************/
void halButtonsInit(unsigned char buttonsMask)
{
BUTTON_PORT_OUT |= buttonsMask;
BUTTON_PORT_DIR &= ~buttonsMask;
BUTTON_PORT_REN |= buttonsMask;
BUTTON_PORT_SEL &= ~buttonsMask;
}
/**********************************************************************//**
* @brief Returns LOW for the buttons pressed.
*
* @param none
*
* @return The buttons that have been pressed, identified by a bit = 0.
*************************************************************************/
unsigned char halButtonsPressed(void)
{
unsigned char value;
value = BUTTON_PORT_IN;
return (0xFF - value); //Low==ButtonPressed
}
/**********************************************************************//**
* @brief Enables button interrupt(s) with low to high transitions.
*
* @param buttonIntEnableMask The button pin(s) for which the interrupt(s)
* should be enabled.
*
* @return none
*************************************************************************/
void halButtonsInterruptEnable(unsigned char buttonIntEnableMask)
{
BUTTON_PORT_IES &= ~buttonIntEnableMask;
BUTTON_PORT_IFG &= ~buttonIntEnableMask;
BUTTON_PORT_IE |= buttonIntEnableMask;
}
/**********************************************************************//**
* @brief Disables button interrupts
*
* @param buttonIntEnableMask The button pin(s) for which the interrupt(s)
* should be disabled.
*
* @return none
*************************************************************************/
void halButtonsInterruptDisable(unsigned char buttonIntEnableMask)
{
BUTTON_PORT_IE &= ~buttonIntEnableMask;
}
/**********************************************************************//**
* @brief Clears the button GPIO settings, disables the buttons.
*
* @param none
*************************************************************************/
void halButtonsShutDown()
{
//All output, outputting 0s
BUTTON_PORT_OUT &= ~(BUTTON_ALL);
BUTTON_PORT_DIR |= BUTTON_ALL;
}