![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466
Diff: mbed-os/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL43Z/drivers/fsl_dac.c
- Revision:
- 0:8fdf9a60065b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL43Z/drivers/fsl_dac.c Wed Oct 10 00:33:53 2018 +0000 @@ -0,0 +1,213 @@ +/* + * 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_dac.h" + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +/*! + * @brief Get instance number for DAC module. + * + * @param base DAC peripheral base address + */ +static uint32_t DAC_GetInstance(DAC_Type *base); + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief Pointers to DAC bases for each instance. */ +static DAC_Type *const s_dacBases[] = DAC_BASE_PTRS; +/*! @brief Pointers to DAC clocks for each instance. */ +const clock_ip_name_t s_dacClocks[] = DAC_CLOCKS; + +/******************************************************************************* + * Codes + ******************************************************************************/ +static uint32_t DAC_GetInstance(DAC_Type *base) +{ + uint32_t instance; + + /* Find the instance index from base address mappings. */ + for (instance = 0; instance < FSL_FEATURE_SOC_DAC_COUNT; instance++) + { + if (s_dacBases[instance] == base) + { + break; + } + } + + assert(instance < FSL_FEATURE_SOC_DAC_COUNT); + + return instance; +} + +void DAC_Init(DAC_Type *base, const dac_config_t *config) +{ + assert(NULL != config); + + uint8_t tmp8; + + /* Enable the clock. */ + CLOCK_EnableClock(s_dacClocks[DAC_GetInstance(base)]); + + /* Configure. */ + /* DACx_C0. */ + tmp8 = base->C0 & ~(DAC_C0_DACRFS_MASK | DAC_C0_LPEN_MASK); + if (kDAC_ReferenceVoltageSourceVref2 == config->referenceVoltageSource) + { + tmp8 |= DAC_C0_DACRFS_MASK; + } + if (config->enableLowPowerMode) + { + tmp8 |= DAC_C0_LPEN_MASK; + } + base->C0 = tmp8; + + DAC_Enable(base, true); +} + +void DAC_Deinit(DAC_Type *base) +{ + DAC_Enable(base, false); + + /* Disable the clock. */ + CLOCK_DisableClock(s_dacClocks[DAC_GetInstance(base)]); +} + +void DAC_GetDefaultConfig(dac_config_t *config) +{ + assert(NULL != config); + + config->referenceVoltageSource = kDAC_ReferenceVoltageSourceVref2; + config->enableLowPowerMode = false; +} + +void DAC_SetBufferConfig(DAC_Type *base, const dac_buffer_config_t *config) +{ + assert(NULL != config); + + uint8_t tmp8; + + /* DACx_C0. */ + tmp8 = base->C0 & ~(DAC_C0_DACTRGSEL_MASK); + if (kDAC_BufferTriggerBySoftwareMode == config->triggerMode) + { + tmp8 |= DAC_C0_DACTRGSEL_MASK; + } + base->C0 = tmp8; + + /* DACx_C1. */ + tmp8 = base->C1 & + ~( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION + DAC_C1_DACBFWM_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */ + DAC_C1_DACBFMD_MASK); +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION + tmp8 |= DAC_C1_DACBFWM(config->watermark); +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */ + tmp8 |= DAC_C1_DACBFMD(config->workMode); + base->C1 = tmp8; + + /* DACx_C2. */ + tmp8 = base->C2 & ~DAC_C2_DACBFUP_MASK; + tmp8 |= DAC_C2_DACBFUP(config->upperLimit); + base->C2 = tmp8; +} + +void DAC_GetDefaultBufferConfig(dac_buffer_config_t *config) +{ + assert(NULL != config); + + config->triggerMode = kDAC_BufferTriggerBySoftwareMode; +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION + config->watermark = kDAC_BufferWatermark1Word; +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_SELECTION */ + config->workMode = kDAC_BufferWorkAsNormalMode; + config->upperLimit = DAC_DATL_COUNT - 1U; +} + +void DAC_SetBufferValue(DAC_Type *base, uint8_t index, uint16_t value) +{ + assert(index < DAC_DATL_COUNT); + + base->DAT[index].DATL = (uint8_t)(0xFFU & value); /* Low 8-bit. */ + base->DAT[index].DATH = (uint8_t)((0xF00U & value) >> 8); /* High 4-bit. */ +} + +void DAC_SetBufferReadPointer(DAC_Type *base, uint8_t index) +{ + assert(index < DAC_DATL_COUNT); + + uint8_t tmp8 = base->C2 & ~DAC_C2_DACBFRP_MASK; + + tmp8 |= DAC_C2_DACBFRP(index); + base->C2 = tmp8; +} + +void DAC_EnableBufferInterrupts(DAC_Type *base, uint32_t mask) +{ + mask &= ( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + DAC_C0_DACBWIEN_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + DAC_C0_DACBTIEN_MASK | DAC_C0_DACBBIEN_MASK); + base->C0 |= ((uint8_t)mask); /* Write 1 to enable. */ +} + +void DAC_DisableBufferInterrupts(DAC_Type *base, uint32_t mask) +{ + mask &= ( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + DAC_C0_DACBWIEN_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + DAC_C0_DACBTIEN_MASK | DAC_C0_DACBBIEN_MASK); + base->C0 &= (uint8_t)(~((uint8_t)mask)); /* Write 0 to disable. */ +} + +uint32_t DAC_GetBufferStatusFlags(DAC_Type *base) +{ + return (uint32_t)(base->SR & ( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + DAC_SR_DACBFWMF_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + DAC_SR_DACBFRPTF_MASK | DAC_SR_DACBFRPBF_MASK)); +} + +void DAC_ClearBufferStatusFlags(DAC_Type *base, uint32_t mask) +{ + mask &= ( +#if defined(FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION) && FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION + DAC_SR_DACBFWMF_MASK | +#endif /* FSL_FEATURE_DAC_HAS_WATERMARK_DETECTION */ + DAC_SR_DACBFRPTF_MASK | DAC_SR_DACBFRPBF_MASK); + base->SR &= (uint8_t)(~((uint8_t)mask)); /* Write 0 to clear flags. */ +}