1. 上一篇疑问，int StackTest()这个函数是怎么运行的，后来在.cfg文件找到了答案，.cfg包含丰富的信息，对于用惯C语言的，确实不太习惯
1 var Memory = xdc.useModule('xdc.runtime.Memory'); 2 //使用的模块，XDCTools配置工具， 3 var BIOS = xdc.useModule('ti.sysbios.BIOS'); 4 5 var Task = xdc.useModule('ti.sysbios.knl.Task'); 6 7 var HeapBuf = xdc.useModule('ti.sysbios.heaps.HeapBuf'); 8 9 var Log = xdc.useModule('xdc.runtime.Log'); 10 11 /* 12 ** Allow storing of task names. By default if you name a task with a friendly display name it will not be saved 13 ** to conserve RAM. This must be set to true to allow it. We use friendly names on the Task List display. 14 */ 15 //Defaults.common$.namedInstance = true; 16 Task.common$.namedInstance = true; 17 18 var Clock = xdc.useModule ('ti.sysbios.knl.Clock'); 19 20 /* 21 ** Interface with IPC. Depending on the version of BIOS you are using the 22 ** module name may have changed. 23 */ 24 /* Use this for pre BIOS 6.30 */ 25 /* var Sem = xdc.useModule ('ti.sysbios.ipc.Semaphore'); */ 26 27 /* Use this for BIOS 6.30 plus to get the IPC module */ 28 var Sem = xdc.useModule ('ti.sysbios.knl.Semaphore'); 29 30 var Hwi = xdc.useModule ('ti.sysbios.hal.Hwi'); 31 32 var Ecm = xdc.useModule ('ti.sysbios.family.c64p.EventCombiner'); 33 34 /* 35 ** Configure this to turn on the CPU Load Module for BIOS. 36 ** 37 */ 38 /* 39 var Load = xdc.useModule('ti.sysbios.utils.Load'); 40 Load.common$.diags_USER4 = Diags.ALWAYS_ON; 41 */ 42 43 var Diags = xdc.useModule('xdc.runtime.Diags'); 44 45 /* 46 ** Sets up the exception log so you can read it with ROV in CCS 47 */ 48 //var LoggerBuf = xdc.useModule('xdc.runtime.LoggerBuf'); 49 //var Exc = xdc.useModule('ti.sysbios.family.c66x.Exception'); 50 //Exc.common$.logger = LoggerBuf.create(); 51 //Exc.enablePrint = true; /* prints exception details to the CCS console */ 52 53 /* 54 ** Give the Load module it's own LoggerBuf to make sure the 55 ** events are not overwritten. 56 */ 57 /* var loggerBufParams = new LoggerBuf.Params(); 58 loggerBufParams.exitFlush = true; 59 loggerBufParams.numEntries = 64; 60 Load.common$.logger = LoggerBuf.create(loggerBufParams); 61 */ 62 63 /* Load the CSL package */ 64 var Csl = xdc.useModule('ti.csl.Settings'); 65 66 /* Load the CPPI package */ 67 var Cppi = xdc.loadPackage('ti.drv.cppi'); 68 69 /* Load the QMSS package */ 70 var Qmss = xdc.loadPackage('ti.drv.qmss'); 71 72 /* Load the Platform/NDK Transport/EMAC packages */ 73 var PlatformLib = xdc.loadPackage('ti.platform.evmc6657l'); 74 var NdkTransport = xdc.loadPackage('ti.transport.ndk'); 75 var EmacLLD = xdc.loadPackage('ti.drv.emac'); 76 77 /* 78 ** Use this load to configure NDK 2.2 and above using RTSC. In previous versions of 79 ** the NDK RTSC configuration was not supported and you should comment this out. 80 */ 81 var Global = xdc.useModule('ti.ndk.config.Global'); 82 83 /* 84 ** This allows the heart beat (poll function) to be created but does not generate the stack threads 85 ** 86 ** Look in the cdoc (help files) to see what CfgAddEntry items can be configured. We tell it NOT 87 ** to create any stack threads (services) as we configure those ourselves in our Main Task 88 ** thread hpdspuaStart. 89 */ 90 Global.enableCodeGeneration = false; 91 92 93 var Startup = xdc.useModule('xdc.runtime.Startup'); 94 95 var System = xdc.useModule('xdc.runtime.System'); 96 97 98 99 /* 100 ** Create a Heap. 101 */ 102 var HeapMem = xdc.useModule('ti.sysbios.heaps.HeapMem'); 103 var heapMemParams = new HeapMem.Params(); 104 heapMemParams.size = 0x30000; 105 heapMemParams.sectionName = "systemHeap"; 106 Program.global.heap0 = HeapMem.create(heapMemParams); 107 108 /* This is the default memory heap. */ 109 Memory.defaultHeapInstance = Program.global.heap0; 110 Program.sectMap["emacComm"] = "DDR3"; 111 Program.sectMap["systemHeap"] = "DDR3"; 112 Program.sectMap[".switch"] = "DDR3"; 113 Program.sectMap[".sysmem"] = "DDR3"; 114 Program.sectMap[".args"] = "DDR3"; 115 Program.sectMap[".cio"] = "DDR3"; 116 Program.sectMap[".far"] = "DDR3"; 117 Program.sectMap[".cinit"] = "DDR3"; 118 Program.sectMap[".bss"] = "DDR3"; 119 Program.sectMap[".rodata"] = "DDR3"; 120 Program.sectMap[".neardata"] = "DDR3"; 121 Program.sectMap[".const"] = "DDR3"; 122 Program.sectMap[".text"] = "DDR3"; 123 Program.sectMap[".code"] = "DDR3"; 124 Program.sectMap[".data"] = "DDR3"; 125 Program.sectMap["platform_lib"] = "DDR3"; 126 Program.sectMap[".far:taskStackSection"] = "L2SRAM"; 127 Program.sectMap[".stack"] = "L2SRAM"; 128 Program.sectMap[".far:IMAGEDATA"] = {loadSegment: "L2SRAM", loadAlign: 8}; 129 Program.sectMap[".far:NDK_OBJMEM"] = {loadSegment: "L2SRAM", loadAlign: 8}; 130 Program.sectMap[".far:NDK_PACKETMEM"] = {loadSegment: "L2SRAM", loadAlign: 128}; 131 132 /* Required if using System_printf to output on the console */ 133 SysStd = xdc.useModule('xdc.runtime.SysStd'); 134 System.SupportProxy = SysStd; 135 136 /******************************************************************************************************************** 137 * Define hooks and static tasks that will always be running. * 138 ********************************************************************************************************************/ 139 140 /* 141 ** Register an EVM Init handler with BIOS. This will initialize the hardware. BIOS calls before it starts. 142 ** 143 ** If yuo are debugging with CCS, then this function will execute as CCS loads it if the option in your 144 ** Target Configuraiton file (.ccxml) has the option set to execute all code before Main. That is the 145 ** default. 146 */ 147 Startup.firstFxns.$add('&EVM_init'); 148 149 /* 150 ** Create the stack Thread Task for our application. 151 */ 152 var tskNdkStackTest = Task.create("&StackTest"); 153 tskNdkStackTest.stackSize = 0x1000; 154 tskNdkStackTest.priority = 0x5; 155 156 157 /* 158 ** Create a Periodic task to handle all NDK polling functions. 159 ** If you are using RTSC configuration with NDK 2.2 and above, this is done by default and 160 ** you do not need to do this. 161 */ 162 /*var prdNdkClkParams = new Clock.Params (); 163 prdNdkClkParams.period = 0x64; 164 prdNdkClkParams.startFlag = true; 165 Program.global.clockInst1 = Clock.create("&llTimerTick", 5, prdNdkClkParams); 166 */ 167 168 /* 169 ** If you are using RTSC configuration with NDK 2.2 and above, this is done by default, else 170 ** register hooks so that the stack can track all Task creation 171 Task.common$.namedInstance = true; 172 Task.addHookSet ({ registerFxn: '&NDK_hookInit', createFxn: '&NDK_hookCreate', }); 173 174 /* Enable BIOS Task Scheduler */ 175 BIOS.taskEnabled = true;
2. RTSC里面有包的概念，类似于java语言的包格式，如下，其实也就是函数库，也可以说是，这个工程使用这个模块，不用再C语言添加代码了。
1 ti.sysbios.knl.Semaphore
3. 真正的任务创建函数，终于找到你
1 var tskNdkStackTest = Task.create("&StackTest"); 2 tskNdkStackTest.stackSize = 0x1000; 3 tskNdkStackTest.priority = 0x5;
4. 这个是启动函数
1 Startup.firstFxns.$add('&EVM_init');
5. 钩子函数，和启动任务调度，每一个任务都可以有一个钩子函数，用途暂时不明白。
1 Task.common$.namedInstance = true; 2 Task.addHookSet ({ registerFxn: '&NDK_hookInit', createFxn: '&NDK_hookCreate', }); 3 4 /* Enable BIOS Task Scheduler */ 5 BIOS.taskEnabled = true;
6. 不是很习惯，非C语言的配置方式。