FX3学习笔记1-创建线程

一、实验环境

• 硬件平台：CYUSB3KIT-003 EZ-USB® FX3™ SuperSpeed Explorer Kit
• sdk版本：EZ-USB FX3 SDK1.3 / SuperSpeed Explorer Kit 1.0
• 实验例程：USBBulkSourceSinkLED

二、创建线程步骤

• 1、在cyfxbulksrcsink.h中定义线程栈大小和优先级

//add by allen
//#define CY_FX_ALLEN_TEST_DMA_TX_SIZE        (0)                       /* DMA transfer size is set to infinite */
#define CY_FX_ALLEN_TEST_THREAD_STACK       (0x1000)                  /* Bulk loop application thread stack size */
#define CY_FX_ALLEN_TEST_THREAD_PRIORITY    (9)                       /* Bulk loop application thread priority */

• 2、在cyfxbulksrcsink.c中定义线程结构体变量（结构体内容暂不做分析）

//add by allen
CyU3PThread     allenTestAppThread;	 /* Application thread structure */

• 3、在cyfxbulksrcsink.c中定义线程事件结构体变量（结构体内容暂不做分析）

//add by allen
CyU3PEvent allenTestEvent;       /* Event group used to signal the thread that there is a pending request. */

• 4、在cyfxbulksrcsink.c中创建线程处理函数

/* Entry function for the allen test Thread. */
void AllenTestAppThread_Entry (uint32_t input)
{/* Initialize the application */for (;;){CyU3PThreadSleep (1000);CyU3PDebugPrint (1, "allen test\r\n");}
}

• 5、在cyfxbulksrcsink.c中的void CyFxApplicationDefine (void)函数中添加自己的线程创建代码

//add by allen/* Create an event flag group that will be used for signalling the application thread. */ret = CyU3PEventCreate (&allenTestEvent);if (ret != 0){/* Loop indefinitely */while (1);}/* Allocate the memory for the threads */ptr = CyU3PMemAlloc (CY_FX_ALLEN_TEST_THREAD_STACK);/* Create the thread for the application */ret = CyU3PThreadCreate (&allenTestAppThread,                /* App thread structure */"22:allen_test",                      /* Thread ID and thread name */AllenTestAppThread_Entry,              /* App thread entry function */0,                                       /* No input parameter to thread */ptr,                                     /* Pointer to the allocated thread stack */CY_FX_ALLEN_TEST_THREAD_STACK,          /* App thread stack size */CY_FX_ALLEN_TEST_THREAD_PRIORITY,       /* App thread priority */CY_FX_ALLEN_TEST_THREAD_PRIORITY,       /* App thread priority */CYU3P_NO_TIME_SLICE,                     /* No time slice for the application thread */CYU3P_AUTO_START                         /* Start the thread immediately */);/* Check the return code */if (ret != 0){/* Thread Creation failed with the error code retThrdCreate *//* Add custom recovery or debug actions here *//* Application cannot continue *//* Loop indefinitely */while(1);}

三、完成上述操作，编译烧写进开发板，会看到串口每秒打印一条allen test，，至此完成了一个简单线程的添加。

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