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targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KW24D/drivers/fsl_ewm.c@162:16168a1438f3, 2017-04-08 (annotated)

Committer:
funshine
Date:
Sat Apr 08 17:03:55 2017 +0000
Revision:
162:16168a1438f3
Parent:
154:37f96f9d4de2 
add code to handle serial port rx error in uart_irq()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 154:37f96f9d4de2 1 /*
<> 154:37f96f9d4de2 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
<> 154:37f96f9d4de2 3 * All rights reserved.
<> 154:37f96f9d4de2 4 *
<> 154:37f96f9d4de2 5 * Redistribution and use in source and binary forms, with or without modification,
<> 154:37f96f9d4de2 6 * are permitted provided that the following conditions are met:
<> 154:37f96f9d4de2 7 *
<> 154:37f96f9d4de2 8 * o Redistributions of source code must retain the above copyright notice, this list
<> 154:37f96f9d4de2 9 * of conditions and the following disclaimer.
<> 154:37f96f9d4de2 10 *
<> 154:37f96f9d4de2 11 * o Redistributions in binary form must reproduce the above copyright notice, this
<> 154:37f96f9d4de2 12 * list of conditions and the following disclaimer in the documentation and/or
<> 154:37f96f9d4de2 13 * other materials provided with the distribution.
<> 154:37f96f9d4de2 14 *
<> 154:37f96f9d4de2 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
<> 154:37f96f9d4de2 16 * contributors may be used to endorse or promote products derived from this
<> 154:37f96f9d4de2 17 * software without specific prior written permission.
<> 154:37f96f9d4de2 18 *
<> 154:37f96f9d4de2 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
<> 154:37f96f9d4de2 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
<> 154:37f96f9d4de2 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 154:37f96f9d4de2 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
<> 154:37f96f9d4de2 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
<> 154:37f96f9d4de2 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
<> 154:37f96f9d4de2 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
<> 154:37f96f9d4de2 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
<> 154:37f96f9d4de2 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
<> 154:37f96f9d4de2 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 154:37f96f9d4de2 29 */
<> 154:37f96f9d4de2 30
<> 154:37f96f9d4de2 31 #include "fsl_ewm.h"
<> 154:37f96f9d4de2 32
<> 154:37f96f9d4de2 33 /*******************************************************************************
<> 154:37f96f9d4de2 34 * Code
<> 154:37f96f9d4de2 35 ******************************************************************************/
<> 154:37f96f9d4de2 36
<> 154:37f96f9d4de2 37 void EWM_Init(EWM_Type *base, const ewm_config_t *config)
<> 154:37f96f9d4de2 38 {
<> 154:37f96f9d4de2 39 assert(config);
<> 154:37f96f9d4de2 40
<> 154:37f96f9d4de2 41 uint32_t value = 0U;
<> 154:37f96f9d4de2 42
<> 154:37f96f9d4de2 43 CLOCK_EnableClock(kCLOCK_Ewm0);
<> 154:37f96f9d4de2 44 value = EWM_CTRL_EWMEN(config->enableEwm) | EWM_CTRL_ASSIN(config->setInputAssertLogic) |
<> 154:37f96f9d4de2 45 EWM_CTRL_INEN(config->enableEwmInput) | EWM_CTRL_INTEN(config->enableInterrupt);
<> 154:37f96f9d4de2 46 #if defined(FSL_FEATURE_EWM_HAS_PRESCALER) && FSL_FEATURE_EWM_HAS_PRESCALER
<> 154:37f96f9d4de2 47 base->CLKPRESCALER = config->prescaler;
<> 154:37f96f9d4de2 48 #endif /* FSL_FEATURE_EWM_HAS_PRESCALER */
<> 154:37f96f9d4de2 49
<> 154:37f96f9d4de2 50 #if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT
<> 154:37f96f9d4de2 51 base->CLKCTRL = config->clockSource;
<> 154:37f96f9d4de2 52 #endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT*/
<> 154:37f96f9d4de2 53
<> 154:37f96f9d4de2 54 base->CMPL = config->compareLowValue;
<> 154:37f96f9d4de2 55 base->CMPH = config->compareHighValue;
<> 154:37f96f9d4de2 56 base->CTRL = value;
<> 154:37f96f9d4de2 57 }
<> 154:37f96f9d4de2 58
<> 154:37f96f9d4de2 59 void EWM_Deinit(EWM_Type *base)
<> 154:37f96f9d4de2 60 {
<> 154:37f96f9d4de2 61 EWM_DisableInterrupts(base, kEWM_InterruptEnable);
<> 154:37f96f9d4de2 62 CLOCK_DisableClock(kCLOCK_Ewm0);
<> 154:37f96f9d4de2 63 }
<> 154:37f96f9d4de2 64
<> 154:37f96f9d4de2 65 void EWM_GetDefaultConfig(ewm_config_t *config)
<> 154:37f96f9d4de2 66 {
<> 154:37f96f9d4de2 67 assert(config);
<> 154:37f96f9d4de2 68
<> 154:37f96f9d4de2 69 config->enableEwm = true;
<> 154:37f96f9d4de2 70 config->enableEwmInput = false;
<> 154:37f96f9d4de2 71 config->setInputAssertLogic = false;
<> 154:37f96f9d4de2 72 config->enableInterrupt = false;
<> 154:37f96f9d4de2 73 #if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT
<> 154:37f96f9d4de2 74 config->clockSource = kEWM_LpoClockSource0;
<> 154:37f96f9d4de2 75 #endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT*/
<> 154:37f96f9d4de2 76 #if defined(FSL_FEATURE_EWM_HAS_PRESCALER) && FSL_FEATURE_EWM_HAS_PRESCALER
<> 154:37f96f9d4de2 77 config->prescaler = 0U;
<> 154:37f96f9d4de2 78 #endif /* FSL_FEATURE_EWM_HAS_PRESCALER */
<> 154:37f96f9d4de2 79 config->compareLowValue = 0U;
<> 154:37f96f9d4de2 80 config->compareHighValue = 0xFEU;
<> 154:37f96f9d4de2 81 }
<> 154:37f96f9d4de2 82
<> 154:37f96f9d4de2 83 void EWM_Refresh(EWM_Type *base)
<> 154:37f96f9d4de2 84 {
<> 154:37f96f9d4de2 85 uint32_t primaskValue = 0U;
<> 154:37f96f9d4de2 86
<> 154:37f96f9d4de2 87 /* Disable the global interrupt to protect refresh sequence */
<> 154:37f96f9d4de2 88 primaskValue = DisableGlobalIRQ();
<> 154:37f96f9d4de2 89 base->SERV = (uint8_t)0xB4U;
<> 154:37f96f9d4de2 90 base->SERV = (uint8_t)0x2CU;
<> 154:37f96f9d4de2 91 EnableGlobalIRQ(primaskValue);
<> 154:37f96f9d4de2 92 }