Mouse code for the MacroRat
mbed-dev/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_pwm.c
- Committer:
- sahilmgandhi
- Date:
- 2017-06-03
- Revision:
- 46:b156ef445742
- Parent:
- 18:6a4db94011d3
File content as of revision 46:b156ef445742:
/**************************************************************************//** * @file PWM.c * @version V1.00 * $Revision: 26 $ * $Date: 15/11/18 2:34p $ * @brief NUC472/NUC442 PWM driver source file * * @note * Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved. *****************************************************************************/ #include "NUC472_442.h" /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver @{ */ /** @addtogroup NUC472_442_PWM_Driver PWM Driver @{ */ /** @addtogroup NUC472_442_PWM_EXPORTED_FUNCTIONS PWM Exported Functions @{ */ /** * @brief This function config PWM generator and get the nearest frequency in edge aligned auto-reload mode * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32Frequency Target generator frequency * @param[in] u32DutyCycle Target generator duty cycle percentage. Valid range are between 0 ~ 100. 10 means 10%, 20 means 20%... * @return Nearest frequency clock in nano second * @note Since every two channels, (0 & 1), (2 & 3), (4 & 5), shares a prescaler. Call this API to configure PWM frequency may affect * existing frequency of other channel. */ uint32_t PWM_ConfigOutputChannel (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Frequency, uint32_t u32DutyCycle) { return PWM_ConfigOutputChannel2(pwm, u32ChannelNum, u32Frequency, u32DutyCycle, 1); } /** * @brief This function config PWM generator and get the nearest frequency in edge aligned auto-reload mode * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32Frequency Target generator frequency = u32Frequency / u32Frequency2 * @param[in] u32DutyCycle Target generator duty cycle percentage. Valid range are between 0 ~ 100. 10 means 10%, 20 means 20%... * @param[in] u32Frequency2 Target generator frequency = u32Frequency / u32Frequency2 * @return Nearest frequency clock in nano second * @note Since every two channels, (0 & 1), (2 & 3), (4 & 5), shares a prescaler. Call this API to configure PWM frequency may affect * existing frequency of other channel. */ uint32_t PWM_ConfigOutputChannel2 (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Frequency, uint32_t u32DutyCycle, uint32_t u32Frequency2) { uint32_t i; uint32_t u32PWM_CLock = __HIRC; uint8_t u8Divider = 1, u8Prescale = 0xFF; uint16_t u16CNR = 0xFFFF; if (pwm == PWM0) { if (u32ChannelNum < 2) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 0) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 1) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 2) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 3) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 4) u32PWM_CLock = __LIRC; } else if (u32ChannelNum < 4) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (0 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (1 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (2 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (3 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (4 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = __LIRC; } else if (u32ChannelNum < 6) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (0 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (1 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (2 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (3 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (4 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = __LIRC; } } else if (pwm == PWM1) { if (u32ChannelNum < 2) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (0 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (1 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (2 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (3 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (4 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = __LIRC; } else if (u32ChannelNum < 4) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (0 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (1 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (2 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (3 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (4 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = __LIRC; } else if (u32ChannelNum < 6) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (0 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (1 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (2 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (3 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (4 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = __LIRC; } } for(; u8Divider < 17; u8Divider <<= 1) { // clk divider could only be 1, 2, 4, 8, 16 // Note: Support frequency < 1 i = (uint64_t) u32PWM_CLock * u32Frequency2 / u32Frequency / u8Divider; // If target value is larger than CNR * prescale, need to use a larger divider if(i > (0x10000 * 0x100)) continue; // CNR = 0xFFFF + 1, get a prescaler that CNR value is below 0xFFFF u8Prescale = (i + 0xFFFF)/ 0x10000; // u8Prescale must at least be 2, otherwise the output stop if(u8Prescale < 3) u8Prescale = 2; i /= u8Prescale; if(i <= 0x10000) { if(i == 1) u16CNR = 1; // Too fast, and PWM cannot generate expected frequency... else u16CNR = i; break; } } // Store return value here 'cos we're gonna change u8Divider & u8Prescale & u16CNR to the real value to fill into register i = u32PWM_CLock / (u8Prescale * u8Divider * u16CNR); u8Prescale -= 1; u16CNR -= 1; // convert to real register value if(u8Divider == 1) u8Divider = 4; else if (u8Divider == 2) u8Divider = 0; else if (u8Divider == 4) u8Divider = 1; else if (u8Divider == 8) u8Divider = 2; else // 16 u8Divider = 3; // every two channels share a prescaler while((pwm->SBS[u32ChannelNum] & 1) == 1); pwm->CLKPSC = (pwm->CLKPSC & ~(PWM_CLKPSC_CLKPSC01_Msk << ((u32ChannelNum >> 1) * 8))) | (u8Prescale << ((u32ChannelNum >> 1) * 8)); pwm->CLKDIV = (pwm->CLKDIV & ~(PWM_CLKDIV_CLKDIV0_Msk << (4 * u32ChannelNum))) | (u8Divider << (4 * u32ChannelNum)); pwm->CTL |= 1 << (PWM_CTL_CNTMODE_Pos + u32ChannelNum); if(u32DutyCycle == 0) pwm->CMPDAT[u32ChannelNum] = 0; else pwm->CMPDAT[u32ChannelNum] = u32DutyCycle * (u16CNR + 1) / 100 - 1; pwm->PERIOD[u32ChannelNum] = u16CNR; return(i); } /** * @brief This function config PWM capture and get the nearest unit time * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32UnitTimeNsec Unit time of counter * @param[in] u32CaptureEdge Condition to latch the counter * @return Nearest unit time in nano second * @note Since every two channels, (0 & 1), (2 & 3), (4 & 5), shares a prescaler. Call this API to configure PWM frequency may affect * existing frequency of other channel. */ uint32_t PWM_ConfigCaptureChannel (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32UnitTimeNsec, uint32_t u32CaptureEdge) { uint32_t i; uint32_t u32PWM_CLock = __HIRC; uint8_t u8Divider = 1, u8Prescale = 0xFF; uint16_t u16CNR = 0xFFFF; if (pwm == PWM0) { if (u32ChannelNum < 2) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 0) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 1) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 2) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 3) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH01SEL_Msk) == 4) u32PWM_CLock = __LIRC; } else if (u32ChannelNum < 4) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (0 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (1 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (2 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (3 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH23SEL_Msk) == (4 << CLK_CLKSEL2_PWM0CH23SEL_Pos)) u32PWM_CLock = __LIRC; } else if (u32ChannelNum < 6) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (0 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (1 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (2 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (3 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM0CH45SEL_Msk) == (4 << CLK_CLKSEL2_PWM0CH45SEL_Pos)) u32PWM_CLock = __LIRC; } } else if (pwm == PWM1) { if (u32ChannelNum < 2) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (0 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (1 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (2 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (3 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH01SEL_Msk) == (4 << CLK_CLKSEL2_PWM1CH01SEL_Pos)) u32PWM_CLock = __LIRC; } else if (u32ChannelNum < 4) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (0 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (1 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (2 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (3 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH23SEL_Msk) == (4 << CLK_CLKSEL2_PWM1CH23SEL_Pos)) u32PWM_CLock = __LIRC; } else if (u32ChannelNum < 6) { if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (0 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = __HXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (1 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = __LXT; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (2 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = CLK_GetPCLKFreq(); else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (3 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = __HIRC; else if ((CLK->CLKSEL2 & CLK_CLKSEL2_PWM1CH45SEL_Msk) == (4 << CLK_CLKSEL2_PWM1CH45SEL_Pos)) u32PWM_CLock = __LIRC; } } for(; u8Divider < 17; u8Divider <<= 1) { // clk divider could only be 1, 2, 4, 8, 16 i = ((u32PWM_CLock / u8Divider) * u32UnitTimeNsec) / 1000000000; // If target value is larger than 0xFF, need to use a larger divider if(i > (0xFF)) continue; u8Prescale = i; // u8Prescale must at least be 2, otherwise the output stop if(u8Prescale < 3) u8Prescale = 2; break; } // Store return value here 'cos we're gonna change u8Divider & u8Prescale & u16CNR to the real value to fill into register i = (u8Prescale * u8Divider) * 1000000000/ u32PWM_CLock; u8Prescale -= 1; u16CNR -= 1; // convert to real register value if(u8Divider == 1) u8Divider = 4; else if (u8Divider == 2) u8Divider = 0; else if (u8Divider == 4) u8Divider = 1; else if (u8Divider == 8) u8Divider = 2; else // 16 u8Divider = 3; // every two channels share a prescaler while((pwm->SBS[u32ChannelNum] & 1) == 1); pwm->CLKPSC = (pwm->CLKPSC & ~(PWM_CLKPSC_CLKPSC01_Msk << ((u32ChannelNum >> 1) * 8))) | (u8Prescale << ((u32ChannelNum >> 1) * 8)); pwm->CLKDIV = (pwm->CLKDIV & ~(PWM_CLKDIV_CLKDIV0_Msk << (4 * u32ChannelNum))) | (u8Divider << (4 * u32ChannelNum)); pwm->CTL |= 1 << (PWM_CTL_CNTMODE_Pos + u32ChannelNum); pwm->PERIOD[u32ChannelNum] = u16CNR; return(i); } /** * @brief This function start PWM module * @param[in] pwm The base address of PWM module * @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel. * Bit 0 is channel 0, bit 1 is channel 1... * @return None */ void PWM_Start (PWM_T *pwm, uint32_t u32ChannelMask) { pwm->CNTEN |= u32ChannelMask; } /** * @brief This function stop PWM module * @param[in] pwm The base address of PWM module * @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel. * Bit 0 is channel 0, bit 1 is channel 1... * @return None */ void PWM_Stop (PWM_T *pwm, uint32_t u32ChannelMask) { uint32_t i; for(i = 0; i < PWM_CHANNEL_NUM; i ++) { if(u32ChannelMask & (1 << i)) { *(__IO uint32_t *) (&pwm->CNTEN + 1 * i) = 0; } } } /** * @brief This function stop PWM generation immediately by clear channel enable bit * @param[in] pwm The base address of PWM module * @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel. * Bit 0 is channel 0, bit 1 is channel 1... * @return None */ void PWM_ForceStop (PWM_T *pwm, uint32_t u32ChannelMask) { pwm->CNTEN &= ~u32ChannelMask; } /** * @brief This function enable selected channel to trigger ADC * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32Condition The condition to trigger ADC. Combination of following conditions: * - \ref PWM_TRIGGER_ADC_PERIOD_POINT * - \ref PWM_TRIGGER_ADC_CENTER_POINT * - \ref PWM_TRIGGER_ADC_FALLING_EDGE_POINT * - \ref PWM_TRIGGER_ADC_RISING_EDGE_POINT * @return None */ void PWM_EnableADCTrigger (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Condition) { pwm->TRGADCTL = (pwm->TRGADCTL & ~((PWM_TRIGGER_ADC_PERIOD_POINT | PWM_TRIGGER_ADC_CENTER_POINT | PWM_TRIGGER_ADC_FALLING_EDGE_POINT | PWM_TRIGGER_ADC_RISING_EDGE_POINT ) << (1 * u32ChannelNum))) | (u32Condition << (1 * u32ChannelNum)); } /** * @brief This function disable selected channel to trigger ADC * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return None */ void PWM_DisableADCTrigger (PWM_T *pwm, uint32_t u32ChannelNum) { pwm->TRGADCTL = (pwm->TRGADCTL & ~((PWM_TRIGGER_ADC_PERIOD_POINT | PWM_TRIGGER_ADC_CENTER_POINT | PWM_TRIGGER_ADC_FALLING_EDGE_POINT | PWM_TRIGGER_ADC_RISING_EDGE_POINT ) << (1 * u32ChannelNum))); } /** * @brief This function clear selected channel trigger ADC flag * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32Condition PWM triggered ADC flag to be cleared. A combination of following flags: * - \ref PWM_TRIGGER_ADC_PERIOD_POINT * - \ref PWM_TRIGGER_ADC_CENTER_POINT * - \ref PWM_TRIGGER_ADC_FALLING_EDGE_POINT * - \ref PWM_TRIGGER_ADC_RISING_EDGE_POINT * @return None */ void PWM_ClearADCTriggerFlag (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Condition) { pwm->TRGADCSTS |= (u32Condition << (1 * u32ChannelNum)); } /** * @brief This function get selected channel trigger ADC flag * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return Combination of following trigger conditions which triggered ADC * - \ref PWM_TRIGGER_ADC_PERIOD_POINT * - \ref PWM_TRIGGER_ADC_CENTER_POINT * - \ref PWM_TRIGGER_ADC_FALLING_EDGE_POINT * - \ref PWM_TRIGGER_ADC_FALLING_EDGE_POINT */ uint32_t PWM_GetADCTriggerFlag (PWM_T *pwm, uint32_t u32ChannelNum) { uint32_t u32Ret; u32Ret = pwm->TRGADCSTS >> u32ChannelNum; return (u32Ret & (PWM_TRIGGER_ADC_PERIOD_POINT | PWM_TRIGGER_ADC_CENTER_POINT | PWM_TRIGGER_ADC_FALLING_EDGE_POINT | PWM_TRIGGER_ADC_FALLING_EDGE_POINT)); } /** * @brief This function enable fault brake of selected channels * @param[in] pwm The base address of PWM module * @param[in] u32ChannelMask This parameter is not used * @param[in] u32LevelMask Output high or low while fault brake occurs, each bit represent the level of a channel * while fault brake occurs. Bit 0 represents channel 0, bit 1 represents channel 1... * , bit 6 represent D6, and bit 7 represents D7 * @param[in] u32BrakeSource Fault brake source, could be one of following source * - \ref PWM_BRK0_BKP0 * - \ref PWM_BRK0_CPO0 * - \ref PWM_BRK0_CPO1 * - \ref PWM_BRK0_CPO2 * - \ref PWM_BRK1_LVDBK * - \ref PWM_BK1SEL_BKP1 * - \ref PWM_BK1SEL_CPO0 * - \ref PWM_BK1SEL_CPO1 * @return None */ void PWM_EnableFaultBrake (PWM_T *pwm, uint32_t u32ChannelMask, uint32_t u32LevelMask, uint32_t u32BrakeSource) { if ((u32BrakeSource == PWM_BRK0_BKP0)||(u32BrakeSource == PWM_BRK0_CPO0)||(u32BrakeSource == PWM_BRK0_CPO1)||(u32BrakeSource == PWM_BRK0_CPO2)) pwm->BRKCTL |= (u32BrakeSource | PWM_BRKCTL_BRK0EN_Msk); else if (u32BrakeSource == PWM_BRK1_LVDBK) pwm->BRKCTL |= PWM_BRKCTL_LVDBKEN_Msk; else pwm->BRKCTL = (pwm->BRKCTL & ~PWM_BRKCTL_BK1SEL_Msk) | u32BrakeSource | PWM_BRKCTL_BRK1EN_Msk; pwm->BRKCTL = (pwm->BRKCTL & ~PWM_BRKCTL_BKOD_Msk) | (u32LevelMask << PWM_BRKCTL_BKOD_Pos); } /** * @brief This function clear fault brake flag * @param[in] pwm The base address of PWM module * @param[in] u32BrakeSource Fault brake source 0 or 1 * 0: brake 0, 1: brake 1 * @return None * @note After fault brake occurred, application must clear fault brake source before re-enable PWM output */ void PWM_ClearFaultBrakeFlag (PWM_T *pwm, uint32_t u32BrakeSource) { if (u32BrakeSource == 0) pwm->INTSTS = (PWM_INTSTS_BRKLK0_Msk | PWM_INTSTS_BRKIF0_Msk); else pwm->INTSTS = PWM_INTSTS_BRKIF1_Msk; } /** * @brief This function enables PWM capture of selected channels * @param[in] pwm The base address of PWM module * @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel. * Set bit 0 to 1 enables channel 0 output, set bit 1 to 1 enables channel 1 output... * @return None */ void PWM_EnableCapture (PWM_T *pwm, uint32_t u32ChannelMask) { pwm->CAPCTL |= u32ChannelMask; pwm->CAPINEN |= u32ChannelMask; pwm->CTL |= (u32ChannelMask << PWM_CTL_CNTMODE_Pos); } /** * @brief This function disables PWM capture of selected channels * @param[in] pwm The base address of PWM module * @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel. * Set bit 0 to 1 enables channel 0 output, set bit 1 to 1 enables channel 1 output... * @return None */ void PWM_DisableCapture (PWM_T *pwm, uint32_t u32ChannelMask) { pwm->CAPCTL &= ~u32ChannelMask; pwm->CAPINEN &= ~u32ChannelMask; } /** * @brief This function enables PWM output generation of selected channels * @param[in] pwm The base address of PWM module * @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel. * Set bit 0 to 1 enables channel 0 output, set bit 1 to 1 enables channel 1 output... * @return None */ void PWM_EnableOutput (PWM_T *pwm, uint32_t u32ChannelMask) { pwm->POEN |= u32ChannelMask; } /** * @brief This function disables PWM output generation of selected channels * @param[in] pwm The base address of PWM module * @param[in] u32ChannelMask Combination of enabled channels. Each bit corresponds to a channel * Set bit 0 to 1 disables channel 0 output, set bit 1 to 1 disables channel 1 output... * @return None */ void PWM_DisableOutput (PWM_T *pwm, uint32_t u32ChannelMask) { pwm->POEN &= ~u32ChannelMask; } /** * @brief This function enable Dead zone of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32Duration Dead Zone length in PWM clock count, valid values are between 0~0xFF, but 0 means there is no * dead zone. * @return None */ void PWM_EnableDeadZone (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Duration) { // every two channels shares the same setting u32ChannelNum >>= 1; // set duration pwm->DTCTL = (pwm->DTCTL & ~(PWM_DTCTL_DTCNT01_Msk << (8 * u32ChannelNum))) | (u32Duration << (8 * u32ChannelNum)); // enable dead zone pwm->DTCTL |= (PWM_DTCTL_DTEN01_Msk << u32ChannelNum); } /** * @brief This function disable Dead zone of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return None */ void PWM_DisableDeadZone (PWM_T *pwm, uint32_t u32ChannelNum) { // every two channels shares the same setting u32ChannelNum >>= 1; // enable dead zone pwm->DTCTL &= ~(PWM_DTCTL_DTEN01_Msk << u32ChannelNum); } /** * @brief This function enable capture interrupt of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32Edge Capture interrupt type. It could be either * - \ref PWM_FALLING_LATCH_INT_ENABLE * - \ref PWM_RISING_LATCH_INT_ENABLE * - \ref PWM_RISING_FALLING_LATCH_INT_ENABLE * @return None */ void PWM_EnableCaptureInt (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Edge) { // enable capture interrupt pwm->INTEN |= (u32Edge << u32ChannelNum); } /** * @brief This function disable capture interrupt of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32Edge Capture interrupt type. It could be either * - \ref PWM_FALLING_LATCH_INT_ENABLE * - \ref PWM_RISING_LATCH_INT_ENABLE * - \ref PWM_RISING_FALLING_LATCH_INT_ENABLE * @return None */ void PWM_DisableCaptureInt (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Edge) { // disable capture interrupt pwm->INTEN &= ~(u32Edge << u32ChannelNum); } /** * @brief This function clear capture interrupt flag of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32Edge Capture interrupt type. It could be either * - \ref PWM_FALLING_LATCH_INT_ENABLE * - \ref PWM_RISING_LATCH_INT_ENABLE * - \ref PWM_RISING_FALLING_LATCH_INT_ENABLE * @return None */ void PWM_ClearCaptureIntFlag (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32Edge) { // disable capture interrupt flag pwm->INTSTS = (u32Edge << u32ChannelNum); } /** * @brief This function get capture interrupt flag of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return Capture interrupt flag of specified channel * @retval 0 Capture interrupt did not occurred * @retval PWM_RISING_LATCH_INT_FLAG Rising edge latch interrupt occurred * @retval PWM_FALLING_LATCH_INT_FLAG Falling edge latch interrupt occurred * @retval PWM_RISING_FALLING_LATCH_INT_FLAG Rising and falling edge latch interrupt occurred */ uint32_t PWM_GetCaptureIntFlag (PWM_T *pwm, uint32_t u32ChannelNum) { return ((pwm->INTSTS >> u32ChannelNum) & PWM_RISING_FALLING_LATCH_INT_FLAG); } /** * @brief This function enable duty interrupt of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32IntDutyType Duty interrupt type. It could be either * - \ref PWM_DUTY_INT_MATCH_CMR_UP * - \ref PWM_DUTY_INT_MATCH_CMR_DN * @return None */ void PWM_EnableDutyInt (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32IntDutyType) { // set duty interrupt type pwm->INTCTL = (pwm->INTCTL & ~(PWM_DUTY_INT_MATCH_CMR_UP << u32ChannelNum)) | (u32IntDutyType << u32ChannelNum); // enable duty interrupt pwm->INTEN |= ((1 << PWM_INTEN_DIEN_Pos) << u32ChannelNum); } /** * @brief This function disable duty interrupt of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return None */ void PWM_DisableDutyInt (PWM_T *pwm, uint32_t u32ChannelNum) { pwm->INTEN &= ~((1 << PWM_INTEN_DIEN_Pos) << u32ChannelNum); } /** * @brief This function clears duty interrupt flag of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return None */ void PWM_ClearDutyIntFlag (PWM_T *pwm, uint32_t u32ChannelNum) { // write 1 clear pwm->INTSTS = (1 << PWM_INTSTS_DIF_Pos) << u32ChannelNum; } /** * @brief This function get duty interrupt flag of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return Duty interrupt flag of specified channel * @retval 0 Duty interrupt did not occurred * @retval 1 Duty interrupt occurred */ uint32_t PWM_GetDutyIntFlag (PWM_T *pwm, uint32_t u32ChannelNum) { return(pwm->INTSTS & ((1 << PWM_INTSTS_DIF_Pos) << u32ChannelNum) ? 1 : 0); } /** * @brief This function enable fault brake interrupt * @param[in] pwm The base address of PWM module * @param[in] u32BrakeSource This parameter is not used * @return None */ void PWM_EnableFaultBrakeInt (PWM_T *pwm, uint32_t u32BrakeSource) { pwm->INTEN |= PWM_INTEN_BRKIEN_Msk; } /** * @brief This function disable fault brake interrupt * @param[in] pwm The base address of PWM module * @param[in] u32BrakeSource This parameter is not used * @return None */ void PWM_DisableFaultBrakeInt (PWM_T *pwm, uint32_t u32BrakeSource) { pwm->INTEN &= ~PWM_INTEN_BRKIEN_Msk; } /** * @brief This function clear fault brake interrupt of selected source * @param[in] pwm The base address of PWM module * @param[in] u32BrakeSource Fault brake source, could be either * - \ref PWM_INTSTS_BRKIF0_Msk, or * - \ref PWM_INTSTS_BRKIF1_Msk * @return None */ void PWM_ClearFaultBrakeIntFlag (PWM_T *pwm, uint32_t u32BrakeSource) { pwm->INTSTS = u32BrakeSource; } /** * @brief This function get fault brake interrupt of selected source * @param[in] pwm The base address of PWM module * @param[in] u32BrakeSource Fault brake source, could be either * - \ref PWM_INTSTS_BRKIF0_Msk, or * - \ref PWM_INTSTS_BRKIF1_Msk * @return Fault brake interrupt flag of specified source * @retval 0 Fault brake interrupt did not occurred * @retval 1 Fault brake interrupt occurred */ uint32_t PWM_GetFaultBrakeIntFlag (PWM_T *pwm, uint32_t u32BrakeSource) { return (pwm->INTSTS & u32BrakeSource ? 1 : 0); } /** * @brief This function enable period interrupt of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @param[in] u32IntPeriodType Period interrupt type, could be either * - \ref PWM_PERIOD_INT_UNDERFLOW * - \ref PWM_PERIOD_INT_MATCH_CNR * @return None * @note All channels share the same period interrupt type setting. */ void PWM_EnablePeriodInt (PWM_T *pwm, uint32_t u32ChannelNum, uint32_t u32IntPeriodType) { // set period interrupt type pwm->INTCTL = (pwm->INTCTL & ~(PWM_PERIOD_INT_MATCH_CNR << u32ChannelNum)) | (u32IntPeriodType << u32ChannelNum); // enable period interrupt pwm->INTEN |= ((1 << PWM_INTEN_PIEN_Pos) << u32ChannelNum); } /** * @brief This function disable period interrupt of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return None */ void PWM_DisablePeriodInt (PWM_T *pwm, uint32_t u32ChannelNum) { pwm->INTEN &= ~((1 << PWM_INTEN_PIEN_Pos) << u32ChannelNum); } /** * @brief This function clear period interrupt of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return None */ void PWM_ClearPeriodIntFlag (PWM_T *pwm, uint32_t u32ChannelNum) { // write 1 clear pwm->INTSTS = ((1 << PWM_INTSTS_PIF_Pos) << u32ChannelNum); } /** * @brief This function get period interrupt of selected channel * @param[in] pwm The base address of PWM module * @param[in] u32ChannelNum PWM channel number. Valid values are between 0~5 * @return Period interrupt flag of specified channel * @retval 0 Period interrupt did not occurred * @retval 1 Period interrupt occurred */ uint32_t PWM_GetPeriodIntFlag (PWM_T *pwm, uint32_t u32ChannelNum) { return(pwm->INTSTS & ((1 << PWM_INTSTS_PIF_Pos) << u32ChannelNum) ? 1 : 0); } /*@}*/ /* end of group NUC472_442_PWM_EXPORTED_FUNCTIONS */ /*@}*/ /* end of group NUC472_442_PWM_Driver */ /*@}*/ /* end of group NUC472_442_Device_Driver */ /*** (C) COPYRIGHT 2014 Nuvoton Technology Corp. ***/