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The fledgling Xiao Li's 112th blog project notes: Wisdom cloud intelligent flower watering device actual combat (1) - basic Demo implementation
2022-08-01 02:05:00 【fledgling li】
项目文件夹框架
- API文件夹---------------------------------------Place various sensor driver code folders
- CMSIS文件夹----------------------------------Place the kernel support files folder
- JIZHIYUN文件夹------------------------------Place the Gizwits platform docking file folder
- PROJECT文件夹------------------------------Put the project directory folder
- STARTUP文件夹------------------------------Put the startup code folder
- STM32F10x_StdPeriph_Driver文件夹—Place the standard library functions folder
- USER文件夹-----------------------------------A folder where some files necessary for the project are placed
核心板原理图
LED灯的驱动代码编写
原理图
代码实现
#include "led.h"
#include "systick.h"
void LED_Init(void)
{
RCC_APB2PeriphClockCmd(LED1_CLK, ENABLE);
RCC_APB2PeriphClockCmd(LED2_CLK, ENABLE);
RCC_APB2PeriphClockCmd(LED3_CLK, ENABLE);
GPIO_InitTypeDef LED_InitStruct = {
0};
LED_InitStruct.GPIO_Pin = LED1_PIN;
LED_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
LED_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(LED1_PORT, &LED_InitStruct);
LED_InitStruct.GPIO_Pin = LED2_PIN;
GPIO_Init(LED2_PORT, &LED_InitStruct);
LED_InitStruct.GPIO_Pin = LED3_PIN;
GPIO_Init(LED3_PORT, &LED_InitStruct);
LED1(0);
LED2(0);
LED3(0);
}
void LED_Task(void)
{
static uint32_t Timer = 0;
static uint8_t Sta = 0;
if(SoftTimer(Timer,500))
{
Timer=GetSoftTimer();
Sta?(Sta=0):(Sta=1);
LED1(Sta);
LED2(Sta);
LED3(Sta);
}
}
void GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
uint32_t ODR;
ODR = GPIOx->ODR;
GPIOx->BSRR = ((ODR & GPIO_Pin) << 16U) | (~ODR & GPIO_Pin);
}
#ifndef __LED_H_
#define __LED_H_
#include "stm32f10x.h"
//PB9 --- LED1 --- 低有效
//PB8 --- LED2 --- 低有效
//PA3 --- LED3 --- 低有效
//基于STM32标准库 芯片是 STM32F103C8T6
#define LED1_CLK RCC_APB2Periph_GPIOB
#define LED1_PORT GPIOB
#define LED1_PIN GPIO_Pin_9
#define LED2_CLK RCC_APB2Periph_GPIOB
#define LED2_PORT GPIOB
#define LED2_PIN GPIO_Pin_8
#define LED3_CLK RCC_APB2Periph_GPIOA
#define LED3_PORT GPIOA
#define LED3_PIN GPIO_Pin_3
//宏定义的一个开关
#define LED1(X) X?(GPIO_ResetBits(LED1_PORT,LED1_PIN)):(GPIO_SetBits(LED1_PORT,LED1_PIN))
#define LED2(X) X?(GPIO_ResetBits(LED2_PORT,LED2_PIN)):(GPIO_SetBits(LED2_PORT,LED2_PIN))
#define LED3(X) X?(GPIO_ResetBits(LED3_PORT,LED3_PIN)):(GPIO_SetBits(LED3_PORT,LED3_PIN))
void LED_Init(void);
void GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
void LED_Task(void);
#endif
按键驱动的代码编写
原理图
代码实现
#include "key.h"
#include "systick.h"
void KEY_Init(void)
{
RCC_APB2PeriphClockCmd(KEY0_CLK,ENABLE);
RCC_APB2PeriphClockCmd(KEY1_CLK,ENABLE);
RCC_APB2PeriphClockCmd(KEY2_CLK,ENABLE);
GPIO_InitTypeDef KEY_InitStruct;
KEY_InitStruct.GPIO_Pin = KEY0_PIN|KEY1_PIN|KEY2_PIN;
KEY_InitStruct.GPIO_Mode = GPIO_Mode_IPU;
KEY_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(KEY0_PORT ,&KEY_InitStruct);
GPIO_Init(KEY1_PORT ,&KEY_InitStruct);
GPIO_Init(KEY2_PORT ,&KEY_InitStruct);
}
static uint8_t Key0Value=0;
static uint8_t Key1Value=0;
static uint8_t Key2Value=0;
void KeyScan(void)
{
static uint16_t Key0Timer=0;
static uint16_t Key1Timer=0;
static uint16_t Key2Timer=0;
if(KEY0==0)
{
if(Key0Timer<10)
{
Key0Timer++;
if(Key0Timer>=10)
Key0Value=1;
}
}
else
{
Key0Timer = 0;
}
if(KEY1==0)
{
if(Key1Timer<10)
{
Key1Timer++;
if(Key1Timer>=10)
Key1Value=1;
}
}
else
{
Key1Timer = 0;
}
if(KEY2==0)
{
if(Key2Timer<10)
{
Key2Timer++;
if(Key2Timer>=10)
Key2Value=1;
}
}
else
{
Key2Timer = 0;
}
}
uint8_t GetKey0(void)
{
uint8_t Key=Key0Value;
Key0Value=0;
return Key;
}
uint8_t GetKey1(void)
{
uint8_t Key=Key1Value;
Key1Value=0;
return Key;
}
uint8_t GetKey2(void)
{
uint8_t Key=Key2Value;
Key2Value=0;
return Key;
}
#ifndef __KEY_H_
#define __KEY_H_
#include "stm32f10x.h"
#define KEY0_CLK RCC_APB2Periph_GPIOA
#define KEY0_PORT GPIOA
#define KEY0_PIN GPIO_Pin_0
#define KEY1_CLK RCC_APB2Periph_GPIOA
#define KEY1_PORT GPIOA
#define KEY1_PIN GPIO_Pin_1
#define KEY2_CLK RCC_APB2Periph_GPIOA
#define KEY2_PORT GPIOA
#define KEY2_PIN GPIO_Pin_2
#define KEY0 GPIO_ReadInputDataBit(KEY0_PORT,KEY0_PIN)
#define KEY1 GPIO_ReadInputDataBit(KEY1_PORT,KEY1_PIN)
#define KEY2 GPIO_ReadInputDataBit(KEY2_PORT,KEY2_PIN)
void KEY_Init(void);
void KeyScan(void);
uint8_t GetKey0(void);
uint8_t GetKey1(void);
uint8_t GetKey2(void);
#endif
测试驱动程序的正确性
#include "main.h"
int main(void)
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
USART1_Init(9600);
//printf("打印串口初始化 OK !\r\n");
SysTick_Init();
//printf("系统嘀嗒初始化 OK !\r\n");
LED_Init();
//printf("状态指示初始化 OK !\r\n");
KEY_Init();
//printf("按键配置初始化 OK !\r\n");
while(1)
{
LED_Task();
if(GetKey0())
{
GPIO_TogglePin(LED1_PORT,LED1_PIN);
//JiaoHua(1-currentDataPoint.valueRelay_1);
}
if(GetKey1())
{
GPIO_TogglePin(LED2_PORT,LED2_PIN);
//gizwitsSetMode(WIFI_AIRLINK_MODE);
//按键进入配网模式
}
if(GetKey2())
{
GPIO_TogglePin(LED3_PORT,LED3_PIN);
}
}
}
其他辅助代码
串口打印实现
在开发板上用的是USB TO TTL 工具 串口1 打印 实际的项目板上没有设计该电路（失误1）
串口1 驱动代码
#include "usart1.h"
#include <stdio.h>
void USART1_NVIC_Config(void)
{
//接收中断使能
NVIC_InitTypeDef NVIC_InitStruct;
/*NVIC控制器配置*/
NVIC_InitStruct.NVIC_IRQChannel = USART1_IRQn;//具体中断源名字
NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;//NVIC响应通道使能
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0;//抢占优先级值
NVIC_InitStruct.NVIC_IRQChannelSubPriority = 1;//响应优先级别值
NVIC_Init(&NVIC_InitStruct);
}
/*打印调试串口*/
void USART1_Init(uint32_t BaudRate)
{
USART_DeInit(USART1);
//1.打开GPIO的时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
//2.配置相关结构体
GPIO_InitTypeDef GPIO_InitStruct;
//串口发送引脚的配置 PA9->复用推挽输出
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStruct);
//串口接收引脚的配置 PA10->浮空输入模式
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空输入模式
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStruct);
//1.打开串口的时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE);//注意APB2
USART_InitTypeDef USART1_InitStruct;
//串口的参数配置 波特率可以更改
//无硬件流控制 收发模式
//1起始位 8数据位 无奇偶校验 1位停止位
USART1_InitStruct.USART_BaudRate = BaudRate;
USART1_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART1_InitStruct.USART_Mode = USART_Mode_Rx|USART_Mode_Tx;
USART1_InitStruct.USART_Parity = USART_Parity_No;
USART1_InitStruct.USART_StopBits = USART_StopBits_1;
USART1_InitStruct.USART_WordLength = USART_WordLength_8b;
//串口1初始化
USART_Init(USART1,&USART1_InitStruct);
/**************************************************************/
//开串口中断
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//接收中断
//USART_ITConfig(USART1, USART_IT_IDLE, ENABLE);//空闲中断
//中断优先级配置
USART1_NVIC_Config();
USART_Cmd(USART1,ENABLE);
}
/*串口重定向函数 目的是让STM32支持printf("%d %x %c ")*/
int fputc(int ch , FILE *stream)
{
while(USART_GetFlagStatus(USART1,USART_FLAG_TXE)==RESET);
USART_SendData(USART1,(uint16_t) ch); //数据通过串口发送
while(USART_GetFlagStatus(USART1,USART_FLAG_TC)==RESET);
return ch;
}
#ifndef __USART1_H_
#define __USART1_H_
#include "stm32f10x.h"
void USART1_Init(uint32_t BaudRate);
#endif
系统嘀嗒定时器代码
#include "systick.h"
#include "key.h"
uint32_t mySysTick_Config(uint32_t ticks)
{
if (ticks > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */
SysTick->LOAD = (ticks & SysTick_LOAD_RELOAD_Msk) - 1; /* set reload register */
NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Cortex-M0 System Interrupts */
SysTick->VAL = 0; /* Load the SysTick Counter Value */
SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
SysTick_CTRL_TICKINT_Msk |
SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
return (0); /* Function successful */
}
void SysTick_Init(void)
{
//SystemInit();
SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
mySysTick_Config(SystemCoreClock/1000);
}
void SysTick_Handler(void)
{
SystemTick();
KeyScan();
}
static uint32_t Ticks=0;
void SystemTick(void)
{
Ticks++;
}
uint32_t GetSoftTimer(void)
{
return Ticks;
}
uint8_t SoftTimer(uint32_t BaseTimer,uint32_t Timeout)
{
if(Ticks>=BaseTimer)
return (Ticks)>=Timeout+BaseTimer;
return (Ticks+0xFFFFFF)>=Timeout+BaseTimer;
}
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