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Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466
mbed-os/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL43Z/drivers/fsl_lptmr.c
- Committer:
- kadonotakashi
- Date:
- 2018-10-11
- Revision:
- 3:f3764f852aa8
- Parent:
- 0:8fdf9a60065b
File content as of revision 3:f3764f852aa8:
/* * Copyright (c) 2015, Freescale Semiconductor, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * o Redistributions of source code must retain the above copyright notice, this list * of conditions and the following disclaimer. * * o 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. * * o Neither the name of Freescale Semiconductor, Inc. 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 "fsl_lptmr.h" /******************************************************************************* * Prototypes ******************************************************************************/ /*! * @brief Gets the instance from the base address to be used to gate or ungate the module clock * * @param base LPTMR peripheral base address * * @return The LPTMR instance */ static uint32_t LPTMR_GetInstance(LPTMR_Type *base); /******************************************************************************* * Variables ******************************************************************************/ /*! @brief Pointers to LPTMR bases for each instance. */ static LPTMR_Type *const s_lptmrBases[] = LPTMR_BASE_PTRS; /*! @brief Pointers to LPTMR clocks for each instance. */ static const clock_ip_name_t s_lptmrClocks[] = LPTMR_CLOCKS; /******************************************************************************* * Code ******************************************************************************/ static uint32_t LPTMR_GetInstance(LPTMR_Type *base) { uint32_t instance; /* Find the instance index from base address mappings. */ for (instance = 0; instance < FSL_FEATURE_SOC_LPTMR_COUNT; instance++) { if (s_lptmrBases[instance] == base) { break; } } assert(instance < FSL_FEATURE_SOC_LPTMR_COUNT); return instance; } void LPTMR_Init(LPTMR_Type *base, const lptmr_config_t *config) { assert(config); /* Ungate the LPTMR clock*/ CLOCK_EnableClock(s_lptmrClocks[LPTMR_GetInstance(base)]); /* Configure the timers operation mode and input pin setup */ base->CSR = (LPTMR_CSR_TMS(config->timerMode) | LPTMR_CSR_TFC(config->enableFreeRunning) | LPTMR_CSR_TPP(config->pinPolarity) | LPTMR_CSR_TPS(config->pinSelect)); /* Configure the prescale value and clock source */ base->PSR = (LPTMR_PSR_PRESCALE(config->value) | LPTMR_PSR_PBYP(config->bypassPrescaler) | LPTMR_PSR_PCS(config->prescalerClockSource)); } void LPTMR_Deinit(LPTMR_Type *base) { /* Disable the LPTMR and reset the internal logic */ base->CSR &= ~LPTMR_CSR_TEN_MASK; /* Gate the LPTMR clock*/ CLOCK_DisableClock(s_lptmrClocks[LPTMR_GetInstance(base)]); } void LPTMR_GetDefaultConfig(lptmr_config_t *config) { assert(config); /* Use time counter mode */ config->timerMode = kLPTMR_TimerModeTimeCounter; /* Use input 0 as source in pulse counter mode */ config->pinSelect = kLPTMR_PinSelectInput_0; /* Pulse input pin polarity is active-high */ config->pinPolarity = kLPTMR_PinPolarityActiveHigh; /* Counter resets whenever TCF flag is set */ config->enableFreeRunning = false; /* Bypass the prescaler */ config->bypassPrescaler = true; /* LPTMR clock source */ config->prescalerClockSource = kLPTMR_PrescalerClock_1; /* Divide the prescaler clock by 2 */ config->value = kLPTMR_Prescale_Glitch_0; }