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RT-Thread Nano是RT-Thread的精简版,只有内核、shell(msh)、设备驱动三大功能,以Keil5的pack形式发布。RT-Thread Nano在保证了具备完整功能的RTOS实时内核的前提下实现了极小的FLASH和RAM占用,默认配置下,FLASH可小至2.5KB, RAM可以小至1KB,对于当今主流32位MCU/SoC来说,跑起来毫无压力。
下面就跟随小编一起,看看如何在机智云gokit智能硬件开发板上将RT-Thread Nano跑起来吧~
一、RT-Thread Nano Pack安装
1. 使用STM32CubeMX创建一个可以点亮板载LED的基本工程,参考:http://club.gizwits.com/thread-3859-1-1.html
2. 在MDK5主界面上点击“Pack Install”按钮,进入Pack Install界面:
3. 在Pack Install界面下,RT-Thread Pack在右边栏中。点击“Install”可下载,点击“Update”可更新。
4. 如果在上图界面“Packs”栏中未发现“RT-Thread”,通过两种方法获取RT-Thread Pack。
第一种方法是直接从http://www.rt-thread.org/downloa ... rtthread.2.1.1.pack下载2.1.1版本的的RT-Thread Pack,然后双击完成安装。
第二种方法是在菜单“Packs”下点击“Check for Updates”,Update完成后,将可看到RT-Thread Pack,然后下载Pack再安装它。
二、kernel加载与应用
1. 在主界面点击“ManageRun-TimeEnvironment”进入加载页:
在“RTOS”一栏中选中“RT-Thread”,并在列表中选中“kernel”:
2. 确定后,RT-Thread的kernel文件会被自动添加进来:
Kernel文件包括:
clock.c
components.c
device.c
idle.c
ipc.c
irq.c
kservice.c
mem.c
object.c
scheduler.c
thread.c
timer.c
Cortex-M芯片内核移植代码:
cpuport.c
context_rvds.s
应用代码及配置文件:
board.c
rtconfig.h
三、修改源码适配机智云Gokit
1.需要做一些微小的修改才能在Gokit上跑起来:
1)修改Application/User分组下的stm32f1xx_it.c文件,删除如下3个函数:
复制代码
2)修改RTOS分组下的board.c上文件:
修改第24行为:
复制代码
修改第66行:取消注释,并加入2行代码如下。
复制代码
3)在rtconfig.h使能动态内存管理:
此外,第15行,修改RT_TICK_PER_SECOND为1000。
2. 修改main.c文件,屏蔽掉while(1)死循环,加入测试代码:
下面就跟随小编一起,看看如何在机智云gokit智能硬件开发板上将RT-Thread Nano跑起来吧~
一、RT-Thread Nano Pack安装
1. 使用STM32CubeMX创建一个可以点亮板载LED的基本工程,参考:http://club.gizwits.com/thread-3859-1-1.html
2. 在MDK5主界面上点击“Pack Install”按钮,进入Pack Install界面:
3. 在Pack Install界面下,RT-Thread Pack在右边栏中。点击“Install”可下载,点击“Update”可更新。
4. 如果在上图界面“Packs”栏中未发现“RT-Thread”,通过两种方法获取RT-Thread Pack。
第一种方法是直接从http://www.rt-thread.org/downloa ... rtthread.2.1.1.pack下载2.1.1版本的的RT-Thread Pack,然后双击完成安装。
第二种方法是在菜单“Packs”下点击“Check for Updates”,Update完成后,将可看到RT-Thread Pack,然后下载Pack再安装它。
二、kernel加载与应用
1. 在主界面点击“ManageRun-TimeEnvironment”进入加载页:
在“RTOS”一栏中选中“RT-Thread”,并在列表中选中“kernel”:
2. 确定后,RT-Thread的kernel文件会被自动添加进来:
Kernel文件包括:
clock.c
components.c
device.c
idle.c
ipc.c
irq.c
kservice.c
mem.c
object.c
scheduler.c
thread.c
timer.c
Cortex-M芯片内核移植代码:
cpuport.c
context_rvds.s
应用代码及配置文件:
board.c
rtconfig.h
三、修改源码适配机智云Gokit
1.需要做一些微小的修改才能在Gokit上跑起来:
1)修改Application/User分组下的stm32f1xx_it.c文件,删除如下3个函数:
-
void HardFault_Handler(void);
-
void PendSV_Handler(void);
- void SysTick_Handler(void);
修改第24行为:
- #include "stm32f1xx_hal.h"
-
void SysTick_Handler(void)
-
{
-
/* enter interrupt */
-
rt_interrupt_enter();
-
-
HAL_IncTick();
-
HAL_SYSTICK_IRQHandler();
-
-
rt_tick_increase();
-
-
/* leave interrupt */
-
rt_interrupt_leave();
- }
此外,第15行,修改RT_TICK_PER_SECOND为1000。
2. 修改main.c文件,屏蔽掉while(1)死循环,加入测试代码:
-
/**
-
****************************************************
-
* File Name : main.c
-
* Description : Main program body
-
****************************************************
-
** This notice applies to any and all portions of this file
-
* that are not between comment pairs USER CODE BEGIN and
-
* USER CODE END. Other portions of this file, whether
-
* inserted by the user or by software development tools
-
* are owned by their respective copyright owners.
-
*
-
* COPYRIGHT(c) 2017 STMicroelectronics
-
*
-
* Redistribution and use in source and binary forms, with or without modification,
-
* are permitted provided that the following conditions are met:
-
* 1. Redistributions of source code must retain the above copyright notice,
-
* this list of conditions and the following disclaimer.
-
* 2. Redistributions in binary form must reproduce the above copyright notice,
-
* this list of conditions and the following disclaimer in the documentation
-
* and/or other materials provided with the distribution.
-
* 3. Neither the name of STMicroelectronics nor the names of its contributors
-
* may be used to endorse or promote products derived from this software
-
* without specific prior written permission.
-
*
-
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
*
-
****************************************************
-
*/
-
/* Includes ------------------------------------------------------------------*/
-
#include "main.h"
-
#include "stm32f1xx_hal.h"
-
#include "gpio.h"
-
-
/* USER CODE BEGIN Includes */
-
#include "rtthread.h"
-
/* USER CODE END Includes */
-
-
/* Private variables ---------------------------------------------------------*/
-
-
/* USER CODE BEGIN PV */
-
/* Private variables ---------------------------------------------------------*/
-
-
/* USER CODE END PV */
-
-
/* Private function prototypes -----------------------------------------------*/
-
void SystemClock_Config(void);
-
-
/* USER CODE BEGIN PFP */
-
/* Private function prototypes -----------------------------------------------*/
-
-
/* USER CODE END PFP */
-
-
/* USER CODE BEGIN 0 */
-
//线程LED1
-
static void led1_thread_entry(void* parameter)
-
{
-
while(1)
-
{
-
LED1_Toggle();
-
rt_thread_delay(500); //延时
-
}
-
}
-
//线程LED2
-
static void led2_thread_entry(void* parameter)
-
{
-
while(1)
-
{
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LED2_Toggle();
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rt_thread_delay(100); //延时
-
}
-
}
-
-
/* USER CODE END 0 */
-
-
int main(void)
-
{
-
-
/* USER CODE BEGIN 1 */
-
-
/* USER CODE END 1 */
-
-
/* MCU Configuration----------------------------------------------------------*/
-
-
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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HAL_Init();
-
-
/* USER CODE BEGIN Init */
-
-
/* USER CODE END Init */
-
-
/* Configure the system clock */
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SystemClock_Config();
-
-
/* USER CODE BEGIN SysInit */
-
-
/* USER CODE END SysInit */
-
-
/* Initialize all configured peripherals */
-
MX_GPIO_Init();
-
-
/* USER CODE BEGIN 2 */
-
-
rt_thread_t tid1=RT_NULL;//线程句柄
-
rt_thread_t tid2=RT_NULL;//线程句柄
-
-
//创建动态线程
-
tid1=rt_thread_create("led1",//线程名字
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led1_thread_entry,//线程入口函数
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RT_NULL,//线程参数
-
256,//线程栈大小
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3,//线程优先级
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20);//线程时间片
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//启动线程
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rt_thread_startup(tid1);
-
-
//创建动态线程
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tid2=rt_thread_create("led2",//线程名字
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led2_thread_entry,//线程入口函数
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RT_NULL,//线程参数
-
256,//线程栈大小
-
4,//线程优先级
-
20);//线程时间片
-
//启动线程
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rt_thread_startup(tid2);
-
-
-
/* USER CODE END 2 */
-
-
/* Infinite loop */
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/* USER CODE BEGIN WHILE */
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// while (1)
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// {
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// /* USER CODE END WHILE */
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// /* USER CODE BEGIN 3 */
-
//
-
// }
-
/* USER CODE END 3 */
-
-
}
-
测试代码使用RT-Thread的动态线程创建函数rt_thread_create()创建了2个线程,在线程里面间隔不同的时间翻转LED。
原文下载源码http://club.gizwits.com/thread-7922-1-1.html
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