dsp6657的helloworld例程测试-第二篇-CFG文件

Posted 2020-10-18 乔海权_429512***杭州

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。