From 1a4ea70147216f586f1341d4f1981733ed2c203c Mon Sep 17 00:00:00 2001
From: tao_z <tzj0429@163.com>
Date: Sat, 03 Jul 2021 21:41:30 +0800
Subject: [PATCH] 采用三个外部中断触发
---
USR/SRC/pwm.c | 32 ++++++++++++++++----------------
1 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/USR/SRC/pwm.c b/USR/SRC/pwm.c
index b30d6e5..13d33dc 100644
--- a/USR/SRC/pwm.c
+++ b/USR/SRC/pwm.c
@@ -48,7 +48,7 @@
*****************************************************************************************************/
static void Timer0Init(void)
{
- uint16_t Duty = PERIOD_CMP / 10;
+ uint16_t Duty = PERIOD_CMP / 2;
timer_parameter_struct timercontralcfg;
timer_oc_parameter_struct timeroutcfg[3];
timer_break_parameter_struct timer_breakpara;
@@ -90,25 +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 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_mode_config(TIMER0, TIMER_CH_0, TIMER_OC_MODE_PWM0); //set pwm1 mode first low then high
+ timer_channel_output_mode_config(TIMER0, TIMER_CH_1, TIMER_OC_MODE_PWM0);
+ timer_channel_output_mode_config(TIMER0, TIMER_CH_2, TIMER_OC_MODE_PWM0);
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);
- /* 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);
+ // /* 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 = 32;
+ // 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_DISABLE;
+ // timer_break_config(TIMER0, &timer_breakpara);
timer_primary_output_config(TIMER0, ENABLE);
timer_auto_reload_shadow_enable(TIMER0);
@@ -125,7 +125,7 @@
void SetPwmDuty(uint16_t ch, uint32_t duty)
{
- uint32_t duty_temp = (PERIOD_CMP >= duty) ? (PERIOD_CMP - duty) : 0;
+ // uint32_t duty_temp = (PERIOD_CMP >= duty) ? (PERIOD_CMP - duty) : 0;
timer_channel_output_pulse_value_config(TIMER0, ch, duty);
}
--
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