gd32f_timer_interrupt.zip

/*! \file gd32vf103_timer.c \brief TIMER driver \version 2019-6-5, V1.0.0, firmware for GD32VF103 */ /* Copyright (c) 2019, GigaDevice Semiconductor Inc. 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 the copyright holder 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 "gd32vf103_timer.h" /* TIMER init parameter mask */ #define ALIGNEDMODE_MASK ((uint32_t)0x00000060U) /*!< TIMER init parameter aligne dmode mask */ #define COUNTERDIRECTION_MASK ((uint32_t)0x00000010U) /*!< TIMER init parameter counter direction mask */ #define CLOCKDIVISION_MASK ((uint32_t)0x00000300U) /*!< TIMER init parameter clock division value mask */ /*! \brief deinit a timer \param[in] timer_periph: TIMERx(x=0..13) \param[out] none \retval none */ void timer_deinit(uint32_t timer_periph) { switch(timer_periph){ case TIMER0: /* reset TIMER0 */ rcu_periph_reset_enable(RCU_TIMER0RST); rcu_periph_reset_disable(RCU_TIMER0RST); break; case TIMER1: /* reset TIMER1 */ rcu_periph_reset_enable(RCU_TIMER1RST); rcu_periph_reset_disable(RCU_TIMER1RST); break; case TIMER2: /* reset TIMER2 */ rcu_periph_reset_enable(RCU_TIMER2RST); rcu_periph_reset_disable(RCU_TIMER2RST); break; case TIMER3: /* reset TIMER3 */ rcu_periph_reset_enable(RCU_TIMER3RST); rcu_periph_reset_disable(RCU_TIMER3RST); break; case TIMER4: /* reset TIMER4 */ rcu_periph_reset_enable(RCU_TIMER4RST); rcu_periph_reset_disable(RCU_TIMER4RST); break; case TIMER5: /* reset TIMER5 */ rcu_periph_reset_enable(RCU_TIMER5RST); rcu_periph_reset_disable(RCU_TIMER5RST); break; case TIMER6: /* reset TIMER6 */ rcu_periph_reset_enable(RCU_TIMER6RST); rcu_periph_reset_disable(RCU_TIMER6RST); break; default: break; } } /*! \brief initialize TIMER init parameter struct with a default value \param[in] initpara: init parameter struct \param[out] none \retval none */ void timer_struct_para_init(timer_parameter_struct* initpara) { /* initialize the init parameter struct member with the default value */ initpara->prescaler = 0U; initpara->alignedmode = TIMER_COUNTER_EDGE; initpara->counterdirection = TIMER_COUNTER_UP; initpara->period = 65535U; initpara->clockdivision = TIMER_CKDIV_DIV1; initpara->repetitioncounter = 0U; } /*! \brief initialize TIMER counter \param[in] timer_periph: TIMERx(x=0..6) \param[in] initpara: init parameter struct prescaler: prescaler value of the counter clock, 0~65535 alignedmode: TIMER_COUNTER_EDGE, TIMER_COUNTER_CENTER_DOWN, TIMER_COUNTER_CENTER_UP, TIMER_COUNTER_CENTER_BOTH counterdirection: TIMER_COUNTER_UP, TIMER_COUNTER_DOWN period: counter auto reload value, 0~65535 clockdivision: TIMER_CKDIV_DIV1, TIMER_CKDIV_DIV2, TIMER_CKDIV_DIV4 repetitioncounter: counter repetition value, 0~255 \param[out] none \retval none */ void timer_init(uint32_t timer_periph, timer_parameter_struct* initpara) { /* configure the counter prescaler value */ TIMER_PSC(timer_periph) = (uint16_t)initpara->prescaler; /* configure the counter direction and aligned mode */ if((TIMER0 == timer_periph) || (TIMER1 == timer_periph) || (TIMER2 == timer_periph) || (TIMER3 == timer_periph) || (TIMER4 == timer_periph) ){ TIMER_CTL0(timer_periph) &= (~(uint32_t)(TIMER_CTL0_DIR | TIMER_CTL0_CAM)); TIMER_CTL0(timer_periph) |= (uint32_t)(initpara->alignedmode & ALIGNEDMODE_MASK); TIMER_CTL0(timer_periph) |= (uint32_t)(initpara->counterdirection & COUNTERDIRECTION_MASK); }else{ TIMER_CTL0(timer_periph) &= (uint32_t)(~ TIMER_CTL0_DIR); TIMER_CTL0(timer_periph) |= (uint32_t)(initpara->counterdirection & COUNTERDIRECTION_MASK); } /* configure the autoreload value */ TIMER_CAR(timer_periph) = (uint32_t)initpara->period; if((TIMER5 != timer_periph) && (TIMER6 != timer_periph)){ /* reset the CKDIV bit */ TIMER_CTL0(timer_periph) &= (~(uint32_t)TIMER_CTL0_CKDIV); TIMER_CTL0(timer_periph) |= (uint32_t)(initpara->clockdivision & CLOCKDIVISION_MASK); } if (TIMER0 == timer_periph) { /* configure the repetition counter value */ TIMER_CREP(timer_periph) = (uint32_t)initpara->repetitioncounter; } /* generate an update event */ TIMER_SWEVG(timer_periph) |= (uint32_t)TIMER_SWEVG_UPG; } /*! \brief enable a timer \param[in] timer_periph: TIMERx(x=0..6) \param[out] none \retval none */ void timer_enable(uint32_t timer_periph) { TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_CEN; } /*! \brief disable a timer \param[in] timer_periph: TIMERx(x=0..13) \param[out] none \retval none */ void timer_disable(uint32_t timer_periph) { TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_CEN; } /*! \brief enable the auto reload shadow function \param[in] timer_periph: TIMERx(x=0..6) \param[out] none \retval none */ void timer_auto_reload_shadow_enable(uint32_t timer_periph) { TIMER_CTL0(timer_periph) |= (uint32_t)TIMER_CTL0_ARSE; } /*! \brief disable the auto reload shadow function \param[in] timer_periph: TIMERx(x=0..6) \param[out] none \retval none */ void timer_auto_reload_shadow_disable(uint32_t timer_periph) { TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_ARSE; } /*! \brief enable the update event \param[in] timer_periph: TIMERx(x=0..6) \param[out] none \retval none */ void timer_update_event_enable(uint32_t timer_periph) { TIMER_CTL0(timer_periph) &= ~(uint32_t)TIMER_CTL0_UPDIS; } /*! \brief disable the update event \param[in] timer_periph: TIMERx(x=0..6) \param[out] none \retval none */ void timer_update_event_disable(uint32_t timer_periph) { TIMER_CTL0(timer_periph) |= (uint32_t) TIMER_CTL0_UPDIS; } /*! \brief set TIMER counter alignment m