/**************************************************************************//** * @file eadc.c * @version V2.00 * @brief M261 series EADC driver source file * * @note * @copyright (C) 2019 Nuvoton Technology Corp. 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 Nuvoton Technology Corp. 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 "NuMicro.h" /** @addtogroup Standard_Driver Standard Driver @{ */ /** @addtogroup EADC_Driver EADC Driver @{ */ /** @addtogroup EADC_EXPORTED_FUNCTIONS EADC Exported Functions @{ */ /** * @brief This function make EADC_module be ready to convert. * @param[in] eadc The pointer of the specified EADC module. * @param[in] u32InputMode Decides the input mode. * - \ref EADC_CTL_DIFFEN_SINGLE_END :Single end input mode. * - \ref EADC_CTL_DIFFEN_DIFFERENTIAL :Differential input type. * @return None * @details This function is used to set analog input mode and enable A/D Converter. * Before starting A/D conversion function, ADCEN bit (EADC_CTL[0]) should be set to 1. * @note */ void EADC_Open(EADC_T *eadc, uint32_t u32InputMode) { eadc->CTL &= (~(EADC_CTL_DIFFEN_Msk)); eadc->CTL |= (u32InputMode | EADC_CTL_ADCEN_Msk); while(!(eadc->PWRM & EADC_PWRM_PWUPRDY_Msk)) {} } /** * @brief Disable EADC_module. * @param[in] eadc The pointer of the specified EADC module. * @return None * @details Clear ADCEN bit (EADC_CTL[0]) to disable A/D converter analog circuit power consumption. */ void EADC_Close(EADC_T *eadc) { eadc->CTL &= ~EADC_CTL_ADCEN_Msk; } /** * @brief Configure the sample control logic module. * @param[in] eadc The pointer of the specified EADC module. * @param[in] u32ModuleNum Decides the sample module number, valid value are from 0 to 15. * @param[in] u32TriggerSrc Decides the trigger source. Valid values are: * - \ref EADC_SOFTWARE_TRIGGER : Disable trigger * - \ref EADC_FALLING_EDGE_TRIGGER : STADC pin falling edge trigger * - \ref EADC_RISING_EDGE_TRIGGER : STADC pin rising edge trigger * - \ref EADC_FALLING_RISING_EDGE_TRIGGER : STADC pin both falling and rising edge trigger * - \ref EADC_ADINT0_TRIGGER : ADC ADINT0 interrupt EOC pulse trigger * - \ref EADC_ADINT1_TRIGGER : ADC ADINT1 interrupt EOC pulse trigger * - \ref EADC_TIMER0_TRIGGER : Timer0 overflow pulse trigger * - \ref EADC_TIMER1_TRIGGER : Timer1 overflow pulse trigger * - \ref EADC_TIMER2_TRIGGER : Timer2 overflow pulse trigger * - \ref EADC_TIMER3_TRIGGER : Timer3 overflow pulse trigger * - \ref EADC_PWM0TG0_TRIGGER : EPWM0TG0 trigger * - \ref EADC_PWM0TG1_TRIGGER : EPWM0TG1 trigger * - \ref EADC_PWM0TG2_TRIGGER : EPWM0TG2 trigger * - \ref EADC_PWM0TG3_TRIGGER : EPWM0TG3 trigger * - \ref EADC_PWM0TG4_TRIGGER : EPWM0TG4 trigger * - \ref EADC_PWM0TG5_TRIGGER : EPWM0TG5 trigger * - \ref EADC_PWM1TG0_TRIGGER : EPWM1TG0 trigger * - \ref EADC_PWM1TG1_TRIGGER : EPWM1TG1 trigger * - \ref EADC_PWM1TG2_TRIGGER : EPWM1TG2 trigger * - \ref EADC_PWM1TG3_TRIGGER : EPWM1TG3 trigger * - \ref EADC_PWM1TG4_TRIGGER : EPWM1TG4 trigger * - \ref EADC_PWM1TG5_TRIGGER : EPWM1TG5 trigger * - \ref EADC_BPWM0TG_TRIGGER : BPWM0TG trigger * - \ref EADC_BPWM1TG_TRIGGER : BPWM1TG trigger * @param[in] u32Channel Specifies the sample module channel, valid value are from 0 to 15. * @return None * @details Each of ADC control logic modules 0~15 which is configurable for ADC converter channel EADC_CH0~15 and trigger source. * sample module 16~18 is fixed for ADC channel 16, 17, 18 input sources as band-gap voltage, temperature sensor, and battery power (VBAT). */ void EADC_ConfigSampleModule(EADC_T *eadc, \ uint32_t u32ModuleNum, \ uint32_t u32TriggerSrc, \ uint32_t u32Channel) { eadc->SCTL[u32ModuleNum] &= ~(EADC_SCTL_EXTFEN_Msk | EADC_SCTL_EXTREN_Msk | EADC_SCTL_TRGSEL_Msk | EADC_SCTL_CHSEL_Msk); eadc->SCTL[u32ModuleNum] |= (u32TriggerSrc | u32Channel); } /** * @brief Set trigger delay time. * @param[in] eadc The pointer of the specified EADC module. * @param[in] u32ModuleNum Decides the sample module number, valid value are from 0 to 15. * @param[in] u32TriggerDelayTime Decides the trigger delay time, valid range are between 0~0xFF. * @param[in] u32DelayClockDivider Decides the trigger delay clock divider. Valid values are: * - \ref EADC_SCTL_TRGDLYDIV_DIVIDER_1 : Trigger delay clock frequency is ADC_CLK/1 * - \ref EADC_SCTL_TRGDLYDIV_DIVIDER_2 : Trigger delay clock frequency is ADC_CLK/2 * - \ref EADC_SCTL_TRGDLYDIV_DIVIDER_4 : Trigger delay clock frequency is ADC_CLK/4 * - \ref EADC_SCTL_TRGDLYDIV_DIVIDER_16 : Trigger delay clock frequency is ADC_CLK/16 * @return None * @details User can configure the trigger delay time by setting TRGDLYCNT (EADC_SCTLn[15:8], n=0~15) and TRGDLYDIV (EADC_SCTLn[7:6], n=0~15). * Trigger delay time = (u32TriggerDelayTime) x Trigger delay clock period. */ void EADC_SetTriggerDelayTime(EADC_T *eadc, \ uint32_t u32ModuleNum, \ uint32_t u32TriggerDelayTime, \ uint32_t u32DelayClockDivider) { eadc->SCTL[u32ModuleNum] &= ~(EADC_SCTL_TRGDLYDIV_Msk | EADC_SCTL_TRGDLYCNT_Msk); eadc->SCTL[u32ModuleNum] |= ((u32TriggerDelayTime << EADC_SCTL_TRGDLYCNT_Pos) | u32DelayClockDivider); } /** * @brief Set ADC extend sample time. * @param[in] eadc The pointer of the specified EADC module. * @param[in] u32ModuleNum Decides the sample module number, valid value are from 0 to 18. * @param[in] u32ExtendSampleTime Decides the extend sampling time, the range is from 0~255 ADC clock. Valid value are from 0 to 0xFF. * @return None * @details When A/D converting at high conversion rate, the sampling time of analog input voltage may not enough if input channel loading is heavy, * user can extend A/D sampling time after trigger source is coming to get enough sampling time. */ void EADC_SetExtendSampleTime(EADC_T *eadc, uint32_t u32ModuleNum, uint32_t u32ExtendSampleTime) { eadc->SCTL[u32ModuleNum] &= ~EADC_SCTL_EXTSMPT_Msk; eadc->SCTL[u32ModuleNum] |= (u32ExtendSampleTime << EADC_SCTL_EXTSMPT_Pos); } /*@}*/ /* end of group EADC_EXPORTED_FUNCTIONS */ /*@}*/ /* end of group EADC_Driver */ /*@}*/ /* end of group Standard_Driver */ /*** (C) COPYRIGHT 2019 Nuvoton Technology Corp. ***/