| /****************************************************************************** |
| * Filename: aux_timer.c |
| * Revised: 2016-02-24 14:08:55 +0100 (Wed, 24 Feb 2016) |
| * Revision: 45767 |
| * |
| * Description: Driver for the AUX Timer Module |
| * |
| * Copyright (c) 2015 - 2016, 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: |
| * |
| * 1) Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2) 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. |
| * |
| * 3) Neither the name of the ORGANIZATION 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 HOLDER 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. |
| * |
| ******************************************************************************/ |
| |
| #include <driverlib/aux_timer.h> |
| |
| //***************************************************************************** |
| // |
| // Handle support for DriverLib in ROM: |
| // This section will undo prototype renaming made in the header file |
| // |
| //***************************************************************************** |
| #if !defined(DOXYGEN) |
| #undef AUXTimerConfigure |
| #define AUXTimerConfigure NOROM_AUXTimerConfigure |
| #undef AUXTimerStart |
| #define AUXTimerStart NOROM_AUXTimerStart |
| #undef AUXTimerStop |
| #define AUXTimerStop NOROM_AUXTimerStop |
| #undef AUXTimerPrescaleSet |
| #define AUXTimerPrescaleSet NOROM_AUXTimerPrescaleSet |
| #undef AUXTimerPrescaleGet |
| #define AUXTimerPrescaleGet NOROM_AUXTimerPrescaleGet |
| #endif |
| |
| //***************************************************************************** |
| // |
| //! Configure AUX timer |
| // |
| //***************************************************************************** |
| void |
| AUXTimerConfigure(uint32_t ui32Timer, uint32_t ui32Config) |
| { |
| uint32_t ui32Val; |
| |
| // |
| // Check the arguments. |
| // |
| ASSERT((ui32Timer == AUX_TIMER_0) || (ui32Timer == AUX_TIMER_1) || |
| (ui32Timer == AUX_TIMER_BOTH)); |
| ASSERT(((ui32Config & 0x0000000F) == AUX_TIMER_CFG_ONE_SHOT) || |
| ((ui32Config & 0x0000000F) == AUX_TIMER_CFG_PERIODIC) || |
| ((ui32Config & 0x0000000F) == AUX_TIMER_CFG_ONE_SHOT_EDGE_COUNT) || |
| ((ui32Config & 0x0000000F) == AUX_TIMER_CFG_PERIODIC_EDGE_COUNT) || |
| ((ui32Config & 0x000000F0) == AUX_TIMER_CFG_RISING_EDGE) || |
| ((ui32Config & 0x000000F0) == AUX_TIMER_CFG_FALLING_EDGE) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_RTC_EVENT) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_CMP_A) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_CMP_B) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_TDCDONE) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_TIMER0_EVENT) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_TIMER1_EVENT) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_SMPH_RELEASE) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_ADC_DONE) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO0) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO1) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO2) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO3) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO4) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO5) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO6) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO7) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO8) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO9) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO10) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO11) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO12) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO13) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO14) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_AIO15) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_ACLK_REF) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_MCU_EVENT) || |
| ((ui32Config & 0x00000F00) == AUX_TIMER_CFG_TICK_SRC_ADC_IRQ)); |
| |
| // |
| // Configure Timer 0. |
| // |
| if(ui32Timer & AUX_TIMER_0) |
| { |
| // |
| // Stop timer 0. |
| // |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CTL) = 0; |
| |
| // |
| // Set mode. |
| // |
| ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG); |
| ui32Val &= ~(AUX_TIMER_T0CFG_MODE_M | AUX_TIMER_T0CFG_RELOAD_M); |
| ui32Val |= (ui32Config & (AUX_TIMER_T0CFG_MODE_M | |
| AUX_TIMER_T0CFG_RELOAD_M)); |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG) = ui32Val; |
| |
| // |
| // If edge counter, set rising/falling edge and tick source. |
| // |
| if(ui32Config & AUX_TIMER_T0CFG_MODE_M) |
| { |
| ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG); |
| ui32Val &= ~(AUX_TIMER_T0CFG_TICK_SRC_POL_M | |
| AUX_TIMER_T0CFG_TICK_SRC_M); |
| |
| // |
| // Set edge polarity. |
| // |
| if(ui32Config & AUX_TIMER_CFG_FALLING_EDGE) |
| { |
| ui32Val |= AUX_TIMER_T0CFG_TICK_SRC_POL; |
| } |
| |
| // |
| // Set tick source. |
| // |
| ui32Val |= ((ui32Config & 0x00000F00) >> 8) << |
| AUX_TIMER_T0CFG_TICK_SRC_S; |
| |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG) = ui32Val; |
| } |
| } |
| |
| // |
| // Configure Timer 1. |
| // |
| if(ui32Timer & AUX_TIMER_1) |
| { |
| // |
| // Stop timer 1. |
| // |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CTL) = 0; |
| |
| // |
| // Set mode. |
| // |
| ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG); |
| ui32Val &= ~(AUX_TIMER_T1CFG_MODE_M | AUX_TIMER_T1CFG_RELOAD_M); |
| ui32Val |= ((ui32Config) & (AUX_TIMER_T1CFG_MODE_M | |
| AUX_TIMER_T1CFG_RELOAD_M)); |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG) = ui32Val; |
| |
| // |
| // If edge counter, set rising/falling edge and tick source. |
| // |
| if(ui32Config & AUX_TIMER_T1CFG_MODE) |
| { |
| ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG); |
| ui32Val &= ~(AUX_TIMER_T1CFG_TICK_SRC_POL_M | |
| AUX_TIMER_T1CFG_TICK_SRC_M); |
| |
| // |
| // Set edge polarity. |
| // |
| if(ui32Config & AUX_TIMER_CFG_FALLING_EDGE) |
| { |
| ui32Val |= AUX_TIMER_T1CFG_TICK_SRC_POL; |
| } |
| |
| // |
| // Set tick source. |
| // |
| ui32Val |= ((ui32Config & 0x00000F00) >> 8) << |
| AUX_TIMER_T1CFG_TICK_SRC_S; |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG) = ui32Val; |
| } |
| } |
| } |
| |
| //***************************************************************************** |
| // |
| //! Start AUX timer |
| // |
| //***************************************************************************** |
| void |
| AUXTimerStart(uint32_t ui32Timer) |
| { |
| // |
| // Check the arguments. |
| // |
| ASSERT((ui32Timer == AUX_TIMER_0) || |
| (ui32Timer == AUX_TIMER_1) || |
| (ui32Timer == AUX_TIMER_BOTH)); |
| |
| if(ui32Timer & AUX_TIMER_0) |
| { |
| // |
| // Start timer 0. |
| // |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CTL) = AUX_TIMER_T0CTL_EN; |
| } |
| if(ui32Timer & AUX_TIMER_1) |
| { |
| // |
| // Start timer 1. |
| // |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CTL) = AUX_TIMER_T1CTL_EN; |
| } |
| } |
| |
| //***************************************************************************** |
| // |
| //! Stop AUX timer |
| // |
| //***************************************************************************** |
| void |
| AUXTimerStop(uint32_t ui32Timer) |
| { |
| // |
| // Check the arguments. |
| // |
| ASSERT((ui32Timer == AUX_TIMER_0) || |
| (ui32Timer == AUX_TIMER_1) || |
| (ui32Timer == AUX_TIMER_BOTH)); |
| |
| if(ui32Timer & AUX_TIMER_0) |
| { |
| // |
| // Stop timer 0. |
| // |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CTL) = 0; |
| } |
| if(ui32Timer & AUX_TIMER_1) |
| { |
| // |
| // Stop timer 1. |
| // |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CTL) = 0; |
| } |
| } |
| |
| //***************************************************************************** |
| // |
| //! Set AUX timer prescale value |
| // |
| //***************************************************************************** |
| void |
| AUXTimerPrescaleSet(uint32_t ui32Timer, uint32_t ui32PrescaleDiv) |
| { |
| uint32_t ui32Val; |
| |
| // |
| // Check the arguments. |
| // |
| ASSERT((ui32Timer == AUX_TIMER_0) || (ui32Timer == AUX_TIMER_1) || |
| (ui32Timer == AUX_TIMER_BOTH)); |
| ASSERT(ui32PrescaleDiv <= AUX_TIMER_PRESCALE_DIV_32768); |
| |
| if(ui32Timer & AUX_TIMER_0) |
| { |
| // |
| // Set timer 0 prescale value. |
| // |
| ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG); |
| ui32Val &= ~AUX_TIMER_T0CFG_PRE_M; |
| ui32Val |= ui32PrescaleDiv << AUX_TIMER_T0CFG_PRE_S; |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG) = ui32Val; |
| } |
| if(ui32Timer & AUX_TIMER_1) |
| { |
| // |
| // Set timer 1 prescale value. |
| // |
| ui32Val = HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG); |
| ui32Val &= ~AUX_TIMER_T1CFG_PRE_M; |
| ui32Val |= ui32PrescaleDiv << AUX_TIMER_T1CFG_PRE_S; |
| HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T1CFG) = ui32Val; |
| } |
| } |
| |
| //***************************************************************************** |
| // |
| //! Get AUX timer prescale value |
| // |
| //***************************************************************************** |
| uint32_t |
| AUXTimerPrescaleGet(uint32_t ui32Timer) |
| { |
| uint32_t ui32Val; |
| uint32_t ui32PrescaleDiv; |
| |
| // |
| // Check the arguments. |
| // |
| ASSERT((ui32Timer == AUX_TIMER_0) || (ui32Timer == AUX_TIMER_1)); |
| |
| ui32Val = (HWREG(AUX_TIMER_BASE + AUX_TIMER_O_T0CFG)); |
| if(ui32Timer & AUX_TIMER_0) |
| { |
| // |
| // Get timer 0 prescale value. |
| // |
| ui32PrescaleDiv = |
| (ui32Val & AUX_TIMER_T0CFG_PRE_M) >> AUX_TIMER_T0CFG_PRE_S; |
| } |
| else |
| { |
| // |
| // Get timer 1 prescale value. |
| // |
| ui32PrescaleDiv = |
| (ui32Val & AUX_TIMER_T1CFG_PRE_M) >> AUX_TIMER_T1CFG_PRE_S; |
| } |
| |
| return(ui32PrescaleDiv); |
| } |
