ch579一度被称为神之单片机,是同时拥有蓝牙与网口的cortex-m0内核单片机。最关键的是性价比高,5元左右的价格可以横扫大部分应用。
现在就一步一步带领大家开始ch579移植freertos的学习。
首先介绍运行环境,本次使用keil v5作为编译器。这里不提供keil的下载地址与破解工具。
安装keil,破解,这一步请网友自行解决。
去“南京沁恒”下载ch579的开发包,并安装开发包中的keil补丁。
去freertos官网下载最新的freertos,记得下载tls版本,那是稳定版,毕竟商业项目都不想成为小白鼠吧。小沃下的是FreeRTOSv202210.01-LTS
进入FreeRTOS\FreeRTOS-Kernel里,FreeRTOS-Kernel里的文件就是我们要移植的freertos。
删除FreeRTOS-Kernel中除了*.c,*.h的文件
删除portable文件夹下除了Keil、MemMang、RVDS以外的所有文件。Keil与RVDS是因为我们用的是keil作为编译器,MemMang决定着调度方法。
删除RVDS下除了ARM_CM0外其他的所有文件夹。
删除MemMang下除了heap_4.c外其他的所有文件。
剩下的就是准备一个可以用的FreeRTOSConfig.h放到与portable同级的include下了,这里小沃提供一个如下:
/* USER CODE BEGIN Header */ /* * FreeRTOS Kernel V10.0.1 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * http://www.FreeRTOS.org * http://aws.amazon.com/freertos * * 1 tab == 4 spaces! */ /* USER CODE END Header */ #ifndef FREERTOS_CONFIG_H #define FREERTOS_CONFIG_H /*----------------------------------------------------------- * Application specific definitions. * * These definitions should be adjusted for your particular hardware and * application requirements. * * These parameters and more are described within the 'configuration' section of the * FreeRTOS API documentation available on the FreeRTOS.org web site. * * See http://www.freertos.org/a00110.html *----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* Section where include file can be added */ #include "CH57x_common.h" /* USER CODE END Includes */ /* Ensure definitions are only used by the compiler, and not by the assembler. */ #if defined(__ICCARM__) || defined(__CC_ARM) || defined(__GNUC__) #include <stdint.h> extern uint32_t SystemCoreClock; #endif #define configUSE_PREEMPTION 0 // 协作式调度,无论任务优先级是怎样的,系统会等待当前任务完成并主动释放CPU后,再去切换下一个就绪任务中最高优先级的任务。 #define configUSE_TIME_SLICING 0 // 同上 #define configSUPPORT_STATIC_ALLOCATION 0 // 关闭静态创建任务的函数 #define configSUPPORT_DYNAMIC_ALLOCATION 1 // 启动动态创建任务的函数 #define configUSE_IDLE_HOOK 0 // 不启动idle hook 函数 #define configUSE_TICK_HOOK 0 // 不使用时间片钩子 #define configCPU_CLOCK_HZ FREQ_SYS // 定义cpu时钟频率 #define configTICK_RATE_HZ ((TickType_t)1000) // 其含义是1秒钟tick中断产生的次数 #define configMAX_PRIORITIES (7) // 任务优先级的最大值 #define configMINIMAL_STACK_SIZE ((uint16_t)96) #define configTOTAL_HEAP_SIZE ((size_t)17 * 1024) // 13*1024+512 #define configMAX_TASK_NAME_LEN (16) #define configUSE_16_BIT_TICKS 1 // 在FreeRTOS中,eventBits的位宽由 configUSE_16_BIT_TICKS宏开关决定, configUSE_16_BIT_TICKS 为0,则事件eventGroup为32位,其中有24个bit来存储事件标志位, configUSE_16_BIT_TICKS 为1,则则事件eventGroup为16位 #define configUSE_MUTEXES 0 // 不启动互斥量 #define configQUEUE_REGISTRY_SIZE 8 // 定义了可以记录的队列和信号量的最大数目 #define INCLUDE_uxTaskGetStackHighWaterMark 0 // 如果为1,启动高水平线查看,如果为0则启动。 //#define configCHECK_FOR_STACK_OVERFLOW 1 /* Co-routine definitions. */ #define configUSE_CO_ROUTINES 0 #define configMAX_CO_ROUTINE_PRIORITIES (2) /* Set the following definitions to 1 to include the API function, or zero to exclude the API function. */ #define INCLUDE_vTaskPrioritySet 1 #define INCLUDE_uxTaskPriorityGet 1 #define INCLUDE_vTaskDelete 1 #define INCLUDE_vTaskCleanUpResources 0 #define INCLUDE_vTaskSuspend 1 #define INCLUDE_vTaskDelayUntil 0 #define INCLUDE_vTaskDelay 1 #define INCLUDE_xTaskGetSchedulerState 1 /* Normal assert() semantics without relying on the provision of an assert.h header file. */ /* USER CODE BEGIN 1 */ #define configASSERT(x) \ if ((x) == 0) \ { \ taskDISABLE_INTERRUPTS(); \ for (;;) \ ; \ } /* USER CODE END 1 */ /* Definitions that map the FreeRTOS port interrupt handlers to their CMSIS standard names. */ #define vPortSVCHandler SVC_Handler #define xPortPendSVHandler PendSV_Handler #endif /* FREERTOS_CONFIG_H */
将所有保留的*.c文件与*.h文件都导入到keil中就导入成功了。
文章作者:沃航科技