| /* |
| * ------------------------------------------- |
| * MSP432 DriverLib - v3_10_00_09 |
| * ------------------------------------------- |
| * |
| * --COPYRIGHT--,BSD,BSD |
| * Copyright (c) 2014, Texas Instruments Incorporated |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * * Neither the name of Texas Instruments Incorporated nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * --/COPYRIGHT--*/ |
| #include <debug.h> |
| #include <interrupt.h> |
| #include <systick.h> |
| |
| void SysTick_enableModule(void) |
| { |
| // |
| // Enable SysTick. |
| // |
| SysTick->CTRL |= SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk; |
| } |
| |
| void SysTick_disableModule(void) |
| { |
| // |
| // Disable SysTick. |
| // |
| SysTick->CTRL &= ~(SysTick_CTRL_ENABLE_Msk); |
| } |
| |
| void SysTick_registerInterrupt(void (*intHandler)(void)) |
| { |
| // |
| // Register the interrupt handler, returning an error if an error occurs. |
| // |
| Interrupt_registerInterrupt(FAULT_SYSTICK, intHandler); |
| |
| } |
| |
| void SysTick_unregisterInterrupt(void) |
| { |
| |
| // |
| // Unregister the interrupt handler. |
| // |
| Interrupt_unregisterInterrupt(FAULT_SYSTICK); |
| } |
| |
| void SysTick_enableInterrupt(void) |
| { |
| // |
| // Enable the SysTick interrupt. |
| // |
| SysTick->CTRL |= SysTick_CTRL_TICKINT_Msk; |
| } |
| |
| void SysTick_disableInterrupt(void) |
| { |
| // |
| // Disable the SysTick interrupt. |
| // |
| SysTick->CTRL &= ~(SysTick_CTRL_TICKINT_Msk); |
| } |
| |
| void SysTick_setPeriod(uint32_t period) |
| { |
| // |
| // Check the arguments. |
| // |
| ASSERT((period > 0) && (period <= 16777216)); |
| |
| // |
| // Set the period of the SysTick counter. |
| // |
| SysTick->LOAD = period - 1; |
| } |
| |
| uint32_t SysTick_getPeriod(void) |
| { |
| // |
| // Return the period of the SysTick counter. |
| // |
| return (SysTick->LOAD + 1); |
| } |
| |
| uint32_t SysTick_getValue(void) |
| { |
| // |
| // Return the current value of the SysTick counter. |
| // |
| return (SysTick->VAL); |
| } |