diff --git a/HARDWARE/PID.c b/HARDWARE/PID.c
index 3e6fc05..041f443 100644
--- a/HARDWARE/PID.c
+++ b/HARDWARE/PID.c
@@ -1,5 +1,6 @@
#include "PID.h"
#include "Relays.h"
+#include "USART.h"
extern u16 tem;
float cold_tem=0;
float red_tem=0;
@@ -8,12 +9,14 @@ float ki=0.001;
float kd=340;
extern u8 hot_clod_flag;
extern u8 gpio_state;
+extern int T;
+unsigned int num=0;
PID pid;
void PID_Init()
{
//pid.set_tem=tem;//用户设定温度
- pid.Kp=170;
+ pid.Kp=110;
pid.t=500;//PID计算周期
//pid.Ti=5000000;//积分时间
//pid.Td=1000;//微分时间
@@ -25,31 +28,13 @@ void PID_Init()
void PID_Calc() //pid计算
{
float DelEk;//最近两次偏差之差
-
//float td;
-
float out;
if(pid.C1ms<(pid.t)) //计算周期未到
{
return ;
}
- if(pid.set_tem>pid.now_tem+1)
- {
- //得到当前的偏差值，设置温度大于实际温度，加热，关闭四通阀
- //GPIO_ResetBits(GPIOA,GPIO_Pin_1);//关闭四通阀
- HC595_Send_Byte(gpio_state&=0xFB);//关闭四通阀 &=1111 1011 0xFB
- hot_clod_flag=2;
- //pid.Iout=0;
- }
- if(pid.now_tem>pid.set_tem+1)
- {
- //得到当前的偏差值，设置温度小于实际温度
- //GPIO_SetBits(GPIOA,GPIO_Pin_1);//打开四通阀，制冷
- HC595_Send_Byte(gpio_state|=0x04);//打开四通阀，制冷 |=0000 0100
- hot_clod_flag=1;
- //pid.Iout=0;
- }
-
+
if(pid.set_tem>pid.now_tem)
{
pid.Ek=pid.set_tem-pid.now_tem;
@@ -70,18 +55,16 @@ void PID_Calc() //pid
pid.Iout=ki*pid.SEk; //积分输出
// td=pid.Td/pid.t;
-//
// kd=pid.Kp*td;
-
+
pid.Dout=kd*DelEk; //微分输出
if(pid.Dout<0)
{
pid.Dout=0-pid.Dout;
}
- //out= pid.Pout+ pid.Iout+ pid.Dout;
- out= pid.Pout+pid.Iout+ pid.Dout;
-
+ //out= pid.Pout+pid.Iout+ pid.Dout;
+ out= pid.Pout;
if(out>pid.pwmcycle)
{
pid.OUT=pid.pwmcycle;
@@ -96,4 +79,42 @@ void PID_Calc() //pid
}
pid.Ek_1=pid.Ek; //更新偏差
pid.C1ms=0;
+
+ if(pid.set_tem>pid.now_tem+1)
+ {
+ //得到当前的偏差值，设置温度大于实际温度1℃，加热，关闭压缩机，打开加热棒
+ /*GPIO1->报警铃 GPIO6->压缩机 GPIO3->加热棒 GPIO4—>新风风扇 GPIO5->加湿器 */
+ //HC595_Send_Byte(gpio_state&=0xDF);//关闭压缩机 &=1101 1111 0xDF
+ TIM_SetCompare3(TIM3,0);
+ HC595_Send_Byte(gpio_state|=0x04);//打开加热棒 |=0000 0100 0x04
+ hot_clod_flag=2;
+ pid.Iout=0;
+ }
+ if(pid.now_tem>pid.set_tem)
+ {
+ //得到当前的偏差值，设置温度小于实际温度，制冷，打开压缩机，关闭加热棒
+ HC595_Send_Byte(gpio_state&=0xFB);//关闭加热棒 &=1111 1011 0xFB
+ num=(((pid.OUT*400)/pid.pwmcycle)-1);//请问这个pid.OUT与pwm占空比的值是如何换算过来的
+ TIM_SetCompare3(TIM3,num);
+ //printf("%d\r\n",num);
+ //0-200对应0-100%，如果pid.out=50,占空比就是25%，//num=50*400/200=100，100/400=25%
+ //HC595_Send_Byte(gpio_state|=0x20);//打开压缩机 |=0010 0000
+ hot_clod_flag=1;
+ //pid.Iout=0;
+ }
+ if(hot_clod_flag==1 && T<=tem-3)//制冷过程中温度下降低于设定温度0.3℃
+ {
+ //HC595_Send_Byte(gpio_state&=0xDB);//关闭压缩机 关闭加热棒 &=1101 1101 0xDB
+ TIM_SetCompare3(TIM3,0);//关闭压缩机
+ HC595_Send_Byte(gpio_state&=0xFB);//关闭加热棒
+ hot_clod_flag=0;
+ }
+
+ if(hot_clod_flag==2 && T>=tem)
+ {
+ //HC595_Send_Byte(gpio_state&=0xDB);//关闭压缩机 关闭四通阀 &=1101 1101 0xDB
+ TIM_SetCompare3(TIM3,0);//关闭压缩机
+ HC595_Send_Byte(gpio_state&=0xFB);//关闭加热棒
+ hot_clod_flag=0;
+ }
}
diff --git a/HARDWARE/PWM.c b/HARDWARE/PWM.c
index 37d7977..a9ed1b3 100644
--- a/HARDWARE/PWM.c
+++ b/HARDWARE/PWM.c
@@ -63,7 +63,7 @@ void PWM2_Init(uint16_t Per,uint16_t Psc)
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
- GPIO_InitStructure.GPIO_Pin=GPIO_Pin_11; //TIM2_CH1
+ GPIO_InitStructure.GPIO_Pin=GPIO_Pin_11; //TIM1_CH4
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStructure);
diff --git a/HARDWARE/PWMOUT.c b/HARDWARE/PWMOUT.c
index 96aed50..a5495ee 100644
--- a/HARDWARE/PWMOUT.c
+++ b/HARDWARE/PWMOUT.c
@@ -2,13 +2,13 @@
#include "PID.h"
-void TIM3_Init(void)
+void TIM2_Init(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
+ RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
- NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
+ NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
@@ -17,48 +17,55 @@ void TIM3_Init(void)
TIM_TimeBaseStructure.TIM_Period = 1000; // 10KHz
TIM_TimeBaseStructure.TIM_Prescaler = (72 - 1); // 1MHz
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
- TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
- TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
- TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
- TIM_Cmd(TIM3,ENABLE);
+ TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
+ TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
+ TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
+ TIM_Cmd(TIM2,ENABLE);
}
-void TIM3_IRQHandler(void)
+void TIM2_IRQHandler(void)
{
- if(TIM_GetITStatus(TIM3,TIM_IT_Update))
+ if(TIM_GetITStatus(TIM2,TIM_IT_Update))
{
pid.C1ms++;
- TIM_ClearITPendingBit(TIM3, TIM_IT_Update); //清除中断标志
+ TIM_ClearITPendingBit(TIM2, TIM_IT_Update); //清除中断标志
}
}
-void TimePwm_init(int arr,int psc)
+void TimePwm_init(int arr,int psc)//
{
- GPIO_InitTypeDef GPIO_InitStructure;
- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
- TIM_OCInitTypeDef TIM_OCInitStructure;
-
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE);
- //GPIO_PinRemapConfig(GPIO_PartialRemap_TIM3, ENABLE);
-
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; //TIM3_CH3
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOB, &GPIO_InitStructure);
-
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
-
- TIM_TimeBaseStructure.TIM_Period = arr;
- TIM_TimeBaseStructure.TIM_Prescaler =psc;
- TIM_TimeBaseStructure.TIM_ClockDivision = 0;
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
- TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
-
- TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
- TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
- TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
- TIM_OC3Init(TIM3, &TIM_OCInitStructure);
- TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable);
- TIM_Cmd(TIM3, ENABLE);
+ RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
+ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
+
+// RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
+// GPIO_PinRemapConfig(GPIO_PartialRemap1_TIM2, ENABLE);
+// GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);
+
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
+ GPIO_InitStructure.GPIO_Pin=GPIO_Pin_0; //PA1 TIM2_CH2
+ GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
+ GPIO_Init(GPIOB,&GPIO_InitStructure);
+
+ TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
+
+ TIM_TimeBaseInitStructure.TIM_ClockDivision=TIM_CKD_DIV1;
+ TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;
+ TIM_TimeBaseInitStructure.TIM_Period=arr; //ARR
+ TIM_TimeBaseInitStructure.TIM_Prescaler=psc; //PSC
+ TIM_TimeBaseInitStructure.TIM_RepetitionCounter=0;
+ TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStructure);
+
+ TIM_OCInitTypeDef TIM_OCInitStructure;
+ TIM_OCStructInit(&TIM_OCInitStructure);//给结构体赋初始值
+
+ TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;//输出比较模式
+ TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;//输出比较极性
+ TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
+ TIM_OCInitStructure.TIM_Pulse=0; //CCR的值
+ TIM_OC3Init(TIM3,&TIM_OCInitStructure);//TIM_OC1Init()函数用来初始化输出比较单元
+
+ TIM_Cmd(TIM3,ENABLE);//定时器使能
}
diff --git a/HARDWARE/PWMOUT.h b/HARDWARE/PWMOUT.h
index 9fffa5c..0eb3297 100644
--- a/HARDWARE/PWMOUT.h
+++ b/HARDWARE/PWMOUT.h
@@ -3,9 +3,9 @@
#include "system.h"
-void TIM3_Init(void);
+void TIM2_Init(void);
void PWM_OUT(void);
-void TimePwm_init(int arr,int psc);
+void TimePwm_init(int arr,int psc);//
#endif
diff --git a/OBJ/LED.axf b/OBJ/LED.axf
index 13d9947..a439608 100644
Binary files a/OBJ/LED.axf and b/OBJ/LED.axf differ
diff --git a/OBJ/LED.build_log.htm b/OBJ/LED.build_log.htm
index 927543c..bff2017 100644
--- a/OBJ/LED.build_log.htm
+++ b/OBJ/LED.build_log.htm
@@ -27,9 +27,9 @@ Project File Date: 11/19/2023
Output:
*** Using Compiler 'V5.06 update 7 (build 960)', folder: 'D:\MDK5\ARM\ARMCC\Bin'
Build target 'LED'
-compiling myfreertos.c...
+compiling PID.c...
linking...
-Program Size: Code=25324 RO-data=804 RW-data=1524 ZI-data=13220
+Program Size: Code=25344 RO-data=804 RW-data=1524 ZI-data=13220
FromELF: creating hex file...
"..\OBJ\LED.axf" - 0 Error(s), 0 Warning(s).
@@ -44,7 +44,7 @@ Package Vendor: Keil
D:\MDK5\ARM\Keil\STM32F1xx_DFP\2.3.0\Device\Include
Collection of Component Files used:
-Build Time Elapsed: 00:00:05
+Build Time Elapsed: 00:00:03