From bc6c916bff0b8d342c1cd62da73a2a09f18d22a8 Mon Sep 17 00:00:00 2001
From: tao_z <tzj0429@163.com>
Date: Thu, 24 Jun 2021 22:22:49 +0800
Subject: [PATCH] 基本模块编译通过
---
USR/SRC/pwm.c | 93 ++++++++++++++++++++++------------------------
1 files changed, 45 insertions(+), 48 deletions(-)
diff --git a/USR/SRC/pwm.c b/USR/SRC/pwm.c
index 3c4c5e5..fc83065 100644
--- a/USR/SRC/pwm.c
+++ b/USR/SRC/pwm.c
@@ -11,8 +11,8 @@
#include "pwm.h"
/*****************************************************************************************************
-Timer2 is used to capture hall input
-APB1 is 48M ,so Timer0 clock is 48M,after prescaler 480 is 0.1M(10us)
+Timer2 is used to speed cal
+APB1 is 64M ,so Timer2 clock is 64M,after prescaler 480 is 0.1M(10us)
input pin:
PA15-CO
PB4-AO
@@ -20,41 +20,19 @@
*****************************************************************************************************/
static void Timer2Init(void)
{
-
- timer_ic_parameter_struct capturecfg[2];
timer_parameter_struct timercontralcfg;
timer_deinit(TIMER2);
- capturecfg[0].icfilter = 0; //no filter
- capturecfg[0].icpolarity = TIMER_IC_POLARITY_BOTH_EDGE; //both edge
- capturecfg[0].icprescaler = TIMER_IC_PSC_DIV1;
- capturecfg[0].icselection = TIMER_IC_SELECTION_DIRECTTI; //input and icy is mapped on TIy
-
- capturecfg[1].icfilter = 0;
- capturecfg[1].icpolarity = TIMER_IC_POLARITY_BOTH_EDGE;
- capturecfg[1].icprescaler = TIMER_IC_PSC_DIV1;
- capturecfg[1].icselection = TIMER_IC_SELECTION_DIRECTTI;
-
- timercontralcfg.prescaler = 0;
- timercontralcfg.alignedmode = 0;
- timercontralcfg.counterdirection = 0;
- timercontralcfg.period = PERIOD_CAP;
-
- timer_input_capture_config(TIMER2, TIMER_CH_0, &capturecfg[0]);
- timer_input_capture_config(TIMER2, TIMER_CH_1, &capturecfg[1]);
+ timercontralcfg.prescaler = 6399; //64Mhz /6400 =0.01Mhz = 100us
+ timercontralcfg.alignedmode = TIMER_COUNTER_EDGE;
+ timercontralcfg.counterdirection = TIMER_COUNTER_UP;
+ timercontralcfg.period = PERIOD_CAP; //100us*10000=1s
timer_init(TIMER2, &timercontralcfg);
-
- timer_interrupt_flag_clear(TIMER2, TIMER_INT_CH0);
- timer_interrupt_flag_clear(TIMER2, TIMER_INT_CH1);
- timer_interrupt_flag_clear(TIMER2, TIMER_INT_TRG);
-
- timer_interrupt_enable(TIMER2, TIMER_INT_CH0);
- timer_hall_mode_config(TIMER2, TIMER_HALLINTERFACE_ENABLE);
- timer_interrupt_enable(TIMER2, TIMER_INT_TRG);
+ timer_interrupt_flag_clear(TIMER2, TIMER_INT_UP);
+ timer_interrupt_enable(TIMER2, TIMER_INT_UP);
nvic_irq_enable(TIMER2_IRQn, 1);
- timer_prescaler_config(TIMER2, 47, TIMER_PSC_RELOAD_NOW); //48Mhz /48 =1Mhz = 1us
}
/*****************************************************************************************************
@@ -70,16 +48,17 @@
*****************************************************************************************************/
static void Timer0Init(void)
{
- uint16_t Duty = 0;
+ uint16_t Duty = PERIOD_CMP + 1;
timer_parameter_struct timercontralcfg;
timer_oc_parameter_struct timeroutcfg[3];
+ timer_break_parameter_struct timer_breakpara;
//config timer0
- timercontralcfg.prescaler = 0; //counter prescaler is 0
- timercontralcfg.alignedmode = TIMER_COUNTER_CENTER_UP; //center align and counter style depend on dir set
- timercontralcfg.counterdirection = TIMER_COUNTER_UP; //counter style is up
- timercontralcfg.clockdivision = TIMER_CKDIV_DIV1; //Timer0 is 48M
- timercontralcfg.period = PERIOD_CMP; // set period(counter value 0~2^15)
+ timercontralcfg.prescaler = 0; //counter prescaler is 0
+ timercontralcfg.alignedmode = TIMER_COUNTER_EDGE; //center align and counter style depend on dir set
+ timercontralcfg.counterdirection = TIMER_COUNTER_UP; //counter style is up
+ timercontralcfg.clockdivision = TIMER_CKDIV_DIV1; //Timer0 is 64M
+ timercontralcfg.period = PERIOD_CMP; // set period(counter value 0~2^15)
timer_init(TIMER0, &timercontralcfg);
timeroutcfg[0].ocpolarity = TIMER_OC_POLARITY_HIGH; //channel output polarity is high
@@ -87,21 +66,21 @@
timeroutcfg[0].outputstate = TIMER_CCX_ENABLE; //channel enable
timeroutcfg[0].outputnstate = TIMER_CCXN_ENABLE; //channel complementary enable
timeroutcfg[0].ocidlestate = TIMER_OC_IDLE_STATE_LOW;
- timeroutcfg[0].ocnidlestate = TIMER_OCN_IDLE_STATE_HIGH;
+ 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].ocidlestate = TIMER_OC_IDLE_STATE_LOW;
- timeroutcfg[1].ocnidlestate = TIMER_OCN_IDLE_STATE_HIGH;
+ 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].ocidlestate = TIMER_OC_IDLE_STATE_LOW;
- timeroutcfg[2].ocnidlestate = TIMER_OCN_IDLE_STATE_HIGH;
+ timeroutcfg[2].ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
timer_channel_output_config(TIMER0, TIMER_CH_0, &timeroutcfg[0]);
timer_channel_output_config(TIMER0, TIMER_CH_1, &timeroutcfg[1]);
@@ -111,17 +90,25 @@
timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_1, Duty);
timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_2, Duty);
- timer_channel_output_mode_config(TIMER0, TIMER_CH_0, TIMER_OC_MODE_PWM1); //set pwm1 mode
+ timer_channel_output_mode_config(TIMER0, TIMER_CH_0, TIMER_OC_MODE_PWM1); //set pwm1 mode first low then high
timer_channel_output_mode_config(TIMER0, TIMER_CH_1, TIMER_OC_MODE_PWM1);
timer_channel_output_mode_config(TIMER0, TIMER_CH_2, TIMER_OC_MODE_PWM1);
- timer_channel_output_shadow_config(TIMER0, TIMER_CH_0, TIMER_OC_SHADOW_DISABLE); //shadow disable
- timer_channel_output_shadow_config(TIMER0, TIMER_CH_1, TIMER_OC_SHADOW_DISABLE);
- timer_channel_output_shadow_config(TIMER0, TIMER_CH_2, TIMER_OC_SHADOW_DISABLE);
+ timer_channel_output_shadow_config(TIMER0, TIMER_CH_0, TIMER_OC_SHADOW_ENABLE); //shadow ENable
+ timer_channel_output_shadow_config(TIMER0, TIMER_CH_1, TIMER_OC_SHADOW_ENABLE);
+ timer_channel_output_shadow_config(TIMER0, TIMER_CH_2, TIMER_OC_SHADOW_ENABLE);
- timer_interrupt_enable(TIMER0, TIMER_INT_CH0);
- timer_interrupt_enable(TIMER0, TIMER_INT_CH1);
- timer_interrupt_enable(TIMER0, TIMER_INT_CH2);
+ /* configure TIMER break function */
+ timer_break_struct_para_init(&timer_breakpara);
+ /* automatic output enable, break, dead time and lock configuration*/
+ timer_breakpara.runoffstate = TIMER_ROS_STATE_DISABLE;
+ timer_breakpara.ideloffstate = TIMER_IOS_STATE_DISABLE;
+ timer_breakpara.deadtime = 255;
+ timer_breakpara.breakpolarity = TIMER_BREAK_POLARITY_LOW;
+ timer_breakpara.outputautostate = TIMER_OUTAUTO_ENABLE;
+ timer_breakpara.protectmode = TIMER_CCHP_PROT_0;
+ timer_breakpara.breakstate = TIMER_BREAK_ENABLE;
+ timer_break_config(TIMER0, &timer_breakpara);
timer_primary_output_config(TIMER0, ENABLE);
timer_auto_reload_shadow_enable(TIMER0);
@@ -132,13 +119,13 @@
// rcu_periph_clock_enable(RCU_TIMER2);
rcu_periph_clock_enable(RCU_TIMER0);
Timer0Init();
- // Timer2Init();
+ Timer2Init();
timer_enable(TIMER0);
- // timer_enable(TIMER2);
}
void SetPwmDuty(uint16_t ch, uint32_t duty)
{
+ uint32_t duty_temp = (PERIOD_CMP >= duty) ? (PERIOD_CMP - duty) : 0;
timer_channel_output_pulse_value_config(TIMER0, ch, duty);
}
@@ -146,3 +133,13 @@
{
TIMER_CAR(TIMER0) = period;
}
+
+extern void StartSpeedTime(void)
+{
+ timer_enable(TIMER2);
+}
+
+extern void StopSpeedTime(void)
+{
+ timer_disable(TIMER2);
+}
--
Gitblit v1.8.0