added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K66F/drivers/fsl_ewm.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)
- Committer:
- <>
- Date:
- Fri Sep 02 15:07:44 2016 +0100
- Revision:
- 144:ef7eb2e8f9f7
This updates the lib to the mbed lib v125
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /* |
<> | 144:ef7eb2e8f9f7 | 2 | * Copyright (c) 2015, Freescale Semiconductor, Inc. |
<> | 144:ef7eb2e8f9f7 | 3 | * All rights reserved. |
<> | 144:ef7eb2e8f9f7 | 4 | * |
<> | 144:ef7eb2e8f9f7 | 5 | * Redistribution and use in source and binary forms, with or without modification, |
<> | 144:ef7eb2e8f9f7 | 6 | * are permitted provided that the following conditions are met: |
<> | 144:ef7eb2e8f9f7 | 7 | * |
<> | 144:ef7eb2e8f9f7 | 8 | * o Redistributions of source code must retain the above copyright notice, this list |
<> | 144:ef7eb2e8f9f7 | 9 | * of conditions and the following disclaimer. |
<> | 144:ef7eb2e8f9f7 | 10 | * |
<> | 144:ef7eb2e8f9f7 | 11 | * o Redistributions in binary form must reproduce the above copyright notice, this |
<> | 144:ef7eb2e8f9f7 | 12 | * list of conditions and the following disclaimer in the documentation and/or |
<> | 144:ef7eb2e8f9f7 | 13 | * other materials provided with the distribution. |
<> | 144:ef7eb2e8f9f7 | 14 | * |
<> | 144:ef7eb2e8f9f7 | 15 | * o Neither the name of Freescale Semiconductor, Inc. nor the names of its |
<> | 144:ef7eb2e8f9f7 | 16 | * contributors may be used to endorse or promote products derived from this |
<> | 144:ef7eb2e8f9f7 | 17 | * software without specific prior written permission. |
<> | 144:ef7eb2e8f9f7 | 18 | * |
<> | 144:ef7eb2e8f9f7 | 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
<> | 144:ef7eb2e8f9f7 | 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
<> | 144:ef7eb2e8f9f7 | 21 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
<> | 144:ef7eb2e8f9f7 | 22 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
<> | 144:ef7eb2e8f9f7 | 23 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
<> | 144:ef7eb2e8f9f7 | 24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
<> | 144:ef7eb2e8f9f7 | 25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
<> | 144:ef7eb2e8f9f7 | 26 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
<> | 144:ef7eb2e8f9f7 | 27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
<> | 144:ef7eb2e8f9f7 | 28 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
<> | 144:ef7eb2e8f9f7 | 29 | */ |
<> | 144:ef7eb2e8f9f7 | 30 | |
<> | 144:ef7eb2e8f9f7 | 31 | #include "fsl_ewm.h" |
<> | 144:ef7eb2e8f9f7 | 32 | |
<> | 144:ef7eb2e8f9f7 | 33 | /******************************************************************************* |
<> | 144:ef7eb2e8f9f7 | 34 | * Code |
<> | 144:ef7eb2e8f9f7 | 35 | ******************************************************************************/ |
<> | 144:ef7eb2e8f9f7 | 36 | |
<> | 144:ef7eb2e8f9f7 | 37 | void EWM_Init(EWM_Type *base, const ewm_config_t *config) |
<> | 144:ef7eb2e8f9f7 | 38 | { |
<> | 144:ef7eb2e8f9f7 | 39 | assert(config); |
<> | 144:ef7eb2e8f9f7 | 40 | |
<> | 144:ef7eb2e8f9f7 | 41 | uint32_t value = 0U; |
<> | 144:ef7eb2e8f9f7 | 42 | |
<> | 144:ef7eb2e8f9f7 | 43 | CLOCK_EnableClock(kCLOCK_Ewm0); |
<> | 144:ef7eb2e8f9f7 | 44 | value = EWM_CTRL_EWMEN(config->enableEwm) | EWM_CTRL_ASSIN(config->setInputAssertLogic) | |
<> | 144:ef7eb2e8f9f7 | 45 | EWM_CTRL_INEN(config->enableEwmInput) | EWM_CTRL_INTEN(config->enableInterrupt); |
<> | 144:ef7eb2e8f9f7 | 46 | #if defined(FSL_FEATURE_EWM_HAS_PRESCALER) && FSL_FEATURE_EWM_HAS_PRESCALER |
<> | 144:ef7eb2e8f9f7 | 47 | base->CLKPRESCALER = config->prescaler; |
<> | 144:ef7eb2e8f9f7 | 48 | #endif /* FSL_FEATURE_EWM_HAS_PRESCALER */ |
<> | 144:ef7eb2e8f9f7 | 49 | |
<> | 144:ef7eb2e8f9f7 | 50 | #if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT |
<> | 144:ef7eb2e8f9f7 | 51 | base->CLKCTRL = config->clockSource; |
<> | 144:ef7eb2e8f9f7 | 52 | #endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT*/ |
<> | 144:ef7eb2e8f9f7 | 53 | |
<> | 144:ef7eb2e8f9f7 | 54 | base->CMPL = config->compareLowValue; |
<> | 144:ef7eb2e8f9f7 | 55 | base->CMPH = config->compareHighValue; |
<> | 144:ef7eb2e8f9f7 | 56 | base->CTRL = value; |
<> | 144:ef7eb2e8f9f7 | 57 | } |
<> | 144:ef7eb2e8f9f7 | 58 | |
<> | 144:ef7eb2e8f9f7 | 59 | void EWM_Deinit(EWM_Type *base) |
<> | 144:ef7eb2e8f9f7 | 60 | { |
<> | 144:ef7eb2e8f9f7 | 61 | EWM_DisableInterrupts(base, kEWM_InterruptEnable); |
<> | 144:ef7eb2e8f9f7 | 62 | CLOCK_DisableClock(kCLOCK_Ewm0); |
<> | 144:ef7eb2e8f9f7 | 63 | } |
<> | 144:ef7eb2e8f9f7 | 64 | |
<> | 144:ef7eb2e8f9f7 | 65 | void EWM_GetDefaultConfig(ewm_config_t *config) |
<> | 144:ef7eb2e8f9f7 | 66 | { |
<> | 144:ef7eb2e8f9f7 | 67 | assert(config); |
<> | 144:ef7eb2e8f9f7 | 68 | |
<> | 144:ef7eb2e8f9f7 | 69 | config->enableEwm = true; |
<> | 144:ef7eb2e8f9f7 | 70 | config->enableEwmInput = false; |
<> | 144:ef7eb2e8f9f7 | 71 | config->setInputAssertLogic = false; |
<> | 144:ef7eb2e8f9f7 | 72 | config->enableInterrupt = false; |
<> | 144:ef7eb2e8f9f7 | 73 | #if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT |
<> | 144:ef7eb2e8f9f7 | 74 | config->clockSource = kEWM_LpoClockSource0; |
<> | 144:ef7eb2e8f9f7 | 75 | #endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT*/ |
<> | 144:ef7eb2e8f9f7 | 76 | #if defined(FSL_FEATURE_EWM_HAS_PRESCALER) && FSL_FEATURE_EWM_HAS_PRESCALER |
<> | 144:ef7eb2e8f9f7 | 77 | config->prescaler = 0U; |
<> | 144:ef7eb2e8f9f7 | 78 | #endif /* FSL_FEATURE_EWM_HAS_PRESCALER */ |
<> | 144:ef7eb2e8f9f7 | 79 | config->compareLowValue = 0U; |
<> | 144:ef7eb2e8f9f7 | 80 | config->compareHighValue = 0xFEU; |
<> | 144:ef7eb2e8f9f7 | 81 | } |
<> | 144:ef7eb2e8f9f7 | 82 | |
<> | 144:ef7eb2e8f9f7 | 83 | void EWM_Refresh(EWM_Type *base) |
<> | 144:ef7eb2e8f9f7 | 84 | { |
<> | 144:ef7eb2e8f9f7 | 85 | uint32_t primaskValue = 0U; |
<> | 144:ef7eb2e8f9f7 | 86 | |
<> | 144:ef7eb2e8f9f7 | 87 | /* Disable the global interrupt to protect refresh sequence */ |
<> | 144:ef7eb2e8f9f7 | 88 | primaskValue = DisableGlobalIRQ(); |
<> | 144:ef7eb2e8f9f7 | 89 | base->SERV = (uint8_t)0xB4U; |
<> | 144:ef7eb2e8f9f7 | 90 | base->SERV = (uint8_t)0x2CU; |
<> | 144:ef7eb2e8f9f7 | 91 | EnableGlobalIRQ(primaskValue); |
<> | 144:ef7eb2e8f9f7 | 92 | } |