tao_z
2021-06-30 945ba42f7550d5a203e43d82b43ed82dc981d9e9
USR/SRC/pwm.c
@@ -9,7 +9,7 @@
 * 
 */
#include "pwm.h"
static volatile uint32_t timer_outcnt = 0;
/*****************************************************************************************************
Timer2 is used to speed cal
APB1 is 64M ,so Timer2 clock is 64M,after prescaler 480 is 0.1M(10us)
@@ -24,7 +24,7 @@
    timer_deinit(TIMER2);
    timercontralcfg.prescaler = 6399; //64Mhz /6400 =0.01Mhz = 100us
    timercontralcfg.prescaler = 4799; //48Mhz /4800 =0.01Mhz = 100us
    timercontralcfg.alignedmode = TIMER_COUNTER_EDGE;
    timercontralcfg.counterdirection = TIMER_COUNTER_UP;
    timercontralcfg.period = PERIOD_CAP; //100us*10000=1s
@@ -48,7 +48,7 @@
*****************************************************************************************************/
static void Timer0Init(void)
{
    uint16_t Duty = PERIOD_CMP + 1;
    uint16_t Duty = PERIOD_CMP / 10;
    timer_parameter_struct timercontralcfg;
    timer_oc_parameter_struct timeroutcfg[3];
    timer_break_parameter_struct timer_breakpara;
@@ -63,22 +63,22 @@
    timeroutcfg[0].ocpolarity = TIMER_OC_POLARITY_HIGH; //channel output polarity is high
    timeroutcfg[0].ocnpolarity = TIMER_OCN_POLARITY_HIGH;
    timeroutcfg[0].outputstate = TIMER_CCX_ENABLE;   //channel enable
    timeroutcfg[0].outputnstate = TIMER_CCXN_ENABLE; //channel complementary enable
    timeroutcfg[0].outputstate = TIMER_CCX_ENABLE;    //channel enable
    timeroutcfg[0].outputnstate = TIMER_CCXN_DISABLE; //channel complementary DISABLE
    timeroutcfg[0].ocidlestate = TIMER_OC_IDLE_STATE_LOW;
    timeroutcfg[0].ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
    timeroutcfg[1].ocpolarity = TIMER_OC_POLARITY_HIGH; //channel output polarity is high
    timeroutcfg[1].ocnpolarity = TIMER_OCN_POLARITY_HIGH;
    timeroutcfg[1].outputstate = TIMER_CCX_ENABLE;   //channel enable
    timeroutcfg[1].outputnstate = TIMER_CCXN_ENABLE; //channel complementary enable
    timeroutcfg[1].outputstate = TIMER_CCX_ENABLE;    //channel enable
    timeroutcfg[1].outputnstate = TIMER_CCXN_DISABLE; //channel complementary  DISABLE
    timeroutcfg[1].ocidlestate = TIMER_OC_IDLE_STATE_LOW;
    timeroutcfg[1].ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
    timeroutcfg[2].ocpolarity = TIMER_OC_POLARITY_HIGH; //channel output polarity is high
    timeroutcfg[2].ocnpolarity = TIMER_OCN_POLARITY_HIGH;
    timeroutcfg[2].outputstate = TIMER_CCX_ENABLE;   //channel enable
    timeroutcfg[2].outputnstate = TIMER_CCXN_ENABLE; //channel complementary enable
    timeroutcfg[2].outputstate = TIMER_CCX_ENABLE;    //channel enable
    timeroutcfg[2].outputnstate = TIMER_CCXN_DISABLE; //channel complementary  DISABLE
    timeroutcfg[2].ocidlestate = TIMER_OC_IDLE_STATE_LOW;
    timeroutcfg[2].ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
@@ -116,7 +116,7 @@
void TimerInit(void)
{
    // rcu_periph_clock_enable(RCU_TIMER2);
    rcu_periph_clock_enable(RCU_TIMER2);
    rcu_periph_clock_enable(RCU_TIMER0);
    Timer0Init();
    Timer2Init();
@@ -143,3 +143,14 @@
{
    timer_disable(TIMER2);
}
extern void TIMER2_IRQHandler_CallBack(void)
{
    timer_outcnt++;
}
extern uint32_t GetSpeedTimerOutcnt(void)
{
    uint32_t rtn = timer_outcnt;
    timer_outcnt = 0;
    return rtn;
}