TI中文支持网1、代码：
UserUartHandle_t* UserDebugUartHandle()
{
int32_t ret = 0;
Error_Block eb;
GIO_Params ioParams;
Uart_ChanParams chanParams;
UserUartHandle_t *pUserDebugUartHandle = NULL;
GIO_Params_init(&ioParams);
if(pGlobalLogUartInstance == NULL)
{
pGlobalLogUartInstance = (UserUartInstance_t*)malloc(sizeof(UserUartInstance_t));
memset(pGlobalLogUartInstance, 0, sizeof(UserUartInstance_t));
pGlobalLogUartInstance->deviceId = USER_LOG_UART;
UartEdmaInit(pGlobalLogUartInstance);
chanParams.hEdma = pGlobalLogUartInstance->hEdma;
ioParams.chanParams = (Ptr)&chanParams;
#if 1
ret = GIO_addDevice("/uart1", &Uart_IOMFXNS, UserLogUartInit, USER_LOG_UART, &pGlobalLogUartInstance->uartParams);
if(ret < 0)
{ System_printf("\r\n GIO_addDevice add log uart1 fail");
free(pGlobalLogUartInstance);
pGlobalLogUartInstance = NULL;
return NULL;
}
#endif
pGlobalLogUartInstance->uartTxHandle = GIO_create("/uart1", GIO_OUTPUT, &ioParams, &eb);
pGlobalLogUartInstance->uartRxHandle = GIO_create("/uart1", GIO_INPUT, &ioParams, &eb);
if ((NULL == pGlobalLogUartInstance->uartTxHandle) || (NULL == pGlobalLogUartInstance->uartRxHandle))
{
System_printf("\nStream creation failed\n");
free(pGlobalLogUartInstance);
pGlobalLogUartInstance = NULL;
return NULL;
}
}
pUserDebugUartHandle = (UserUartHandle_t*)malloc(sizeof(UserUartHandle_t));
if(pUserDebugUartHandle == NULL)
{
free(pGlobalLogUartInstance);
pGlobalLogUartInstance = NULL;
return NULL;
}
memset(pUserDebugUartHandle, 0, sizeof(UserUartHandle_t));
pUserDebugUartHandle->deviceId = USER_LOG_UART;
pUserDebugUartHandle->uartRead = UserLogUartRead;
pUserDebugUartHandle->uartWrite = UserLogUartWrite;
pUserDebugUartHandle->pInstance = pGlobalLogUartInstance;
if(pUserDebugUartHandle->pInstance == NULL)
{
free(pUserDebugUartHandle);
free(pGlobalLogUartInstance);
pGlobalLogUartInstance = NULL;
return NULL;
}
return pUserDebugUartHandle;
}
结果是：pGlobalLogUartInstance->uartTxHandle和pGlobalLogUartInstance->uartRxHandle 是空，GIO_create失败；
2、对应的cfg文件如下：
var Defaults = xdc.useModule('xdc.runtime.Defaults');
var Diags = xdc.useModule('xdc.runtime.Diags');
var Error = xdc.useModule('xdc.runtime.Error');
var Log = xdc.useModule('xdc.runtime.Log');
var LoggerBuf = xdc.useModule('xdc.runtime.LoggerBuf');
var Main = xdc.useModule('xdc.runtime.Main');
var Memory = xdc.useModule('xdc.runtime.Memory')
var SysMin = xdc.useModule('xdc.runtime.SysMin');
var System = xdc.useModule('xdc.runtime.System');
var SysStd = xdc.useModule('xdc.runtime.SysStd');
var Assert = xdc.useModule('xdc.runtime.Assert');
var GIO = xdc.useModule('ti.sysbios.io.GIO');
var BIOS = xdc.useModule('ti.sysbios.BIOS');
var Clock = xdc.useModule('ti.sysbios.knl.Clock');
var Queue = xdc.useModule('ti.sysbios.knl.Queue');
var Event = xdc.useModule('ti.sysbios.knl.Event');
var Semaphore = xdc.useModule('ti.sysbios.knl.Semaphore');
var Hwi = xdc.useModule('ti.sysbios.hal.Hwi');
var Timer = xdc.useModule('ti.sysbios.hal.Timer');
var ti_sysbios_timers_timer64_Timer = xdc.useModule('ti.sysbios.timers.timer64.Timer');
var ti_sysbios_family_c64p_Hwi = xdc.useModule('ti.sysbios.family.c64p.Hwi');
var HeapMem = xdc.useModule('ti.sysbios.heaps.HeapMem');
var Task = xdc.useModule('ti.sysbios.knl.Task');
var ti_sysbios_family_c64p_Exception = xdc.useModule('ti.sysbios.family.c64p.Exception');
var DRV = xdc.useModule('ti.sdo.edma3.drv.DRV');
var RM = xdc.useModule('ti.sdo.edma3.rm.RM');
var ECM = xdc.useModule ("ti.sysbios.family.c64p.EventCombiner");
var Cache = xdc.useModule ("ti.sysbios.hal.Cache");
var timestamp = xdc.useModule ("xdc.runtime.Timestamp");
var RmSample = xdc.useModule('ti.sdo.edma3.rm.sample.RmSample');
var DrvSample = xdc.useModule('ti.sdo.edma3.drv.sample.DrvSample');
var Swi = xdc.useModule ("ti.sysbios.knl.Swi");
var HeapBuf = xdc.useModule('ti.sysbios.heaps.HeapBuf');
var HeapMultiBuf = xdc.useModule('ti.sysbios.heaps.HeapMultiBuf');
/* * Program.argSize sets the size of the .args section. * The examples don't use command line args so argSize is setto 0.
*/
Program.argSize = 0x0;
/*
* Uncomment this line to globally disable Asserts.
* All modules inherit the default from the 'Defaults' module. You
* can override these defaults on a per-module basis using Module.common$. * Disabling Asserts will save code space and improve runtime performance.
Defaults.common$.diags_ASSERT = Diags.ALWAYS_OFF;
*/
/*
* Uncomment this line to keep module names from being loaded on the target.
* The module name strings are placed in the .const section. Setting this
* parameter to false will save space in the .const section. Error and
* Assert messages will contain an "unknown module" prefix instead
* of the actual module name.
Defaults.common$.namedModule = false;
*/
/*
* Minimize exit handler array in System. The System module includes
* an array of functions that are registered with System_atexit() to be
* called by System_exit().
*/
System.maxAtexitHandlers = 4;
/* * Uncomment this line to disable the Error print function.
* We lose error information when this is disabled since the errors are
* not printed. Disabling the raiseHook will save some code space if
* your app is not using System_printf() since the Error_print() function
* calls System_printf().
Error.raiseHook = null;
*/
/* * Uncomment this line to keep Error, Assert, and Log strings from being
* loaded on the target. These strings are placed in the .const section.
* Setting this parameter to false will save space in the .const section.
* Error, Assert and Log message will print raw ids and args instead of
* a formatted message.
Text.isLoaded = false;
*/
/*
* Uncomment this line to disable the output of characters by SysMin
* when the program exits. SysMin writes characters to a circular buffer.
* This buffer can be viewed using the SysMin Output view in ROV.
SysMin.flushAtExit = false;
*/
/*
* The BIOS module will create the default heap for the system.
* Specify the size of this default heap.
*/
BIOS.heapSize = 0x80000;
BIOS.taskEnabled = true;
/* System stack size (used by ISRs and Swis) */
Program.stack = 0x4000;
/* Circular buffer size for System_printf() */
SysMin.bufSize = 0x200;
/* * Create and install logger for the whole system
*/
var loggerBufParams = new LoggerBuf.Params();
loggerBufParams.numEntries = 16;
var logger0 = LoggerBuf.create(loggerBufParams);
Defaults.common$.logger = logger0;
Main.common$.diags_INFO = Diags.ALWAYS_ON;
System.SupportProxy = SysStd;
Clock.timerId = 0;
ti_sysbios_timers_timer64_Timer.intFreqs[0].lo = 19200000;
ti_sysbios_timers_timer64_Timer.intFreqs[1].lo = 19200000;
ti_sysbios_timers_timer64_Timer.intFreqs[2].lo = 9600000;
ti_sysbios_timers_timer64_Timer.intFreqs[3].lo = 9600000;
Memory.defaultHeapSize = 0x80000;
Program.sectMap[".text:_c_int00"] = new Program.SectionSpec();
Program.sectMap[".text:_c_int00"] = "CINIT_IRAM";
Program.sectMap[".MIPStext"] = "DDR";
Program.sectMap[".MIPStable"] = "DDR";
Program.sectMap[".MIPStable1"] = "DDR";
Program.sectMap[".MIPStable2"] = "DDR";
Program.sectMap[".MIPStable3"] = "DDR";
Program.sectMap[".MIPStable4"] = "DDR";
Program.sectMap[".ambeconst"] = "DDR";
Program.sectMap[".ambetext"] = "DDR";
Program.sectMap[".DARamData"] = "DDR";
Program.sectMap[".ddrdata"] = "DDR";
Program.sectMap[".fardata"] = "IRAM";
var iomFxns = "Uart_IOMFXNS";
var initFxn = "UserLogUartInit";
var deviceParams = "uartParams";
var deviceId = 1;
GIO.addDeviceMeta("/uart1", iomFxns, initFxn, deviceId, deviceParams);
BIOS.heapTrackEnabled = true;
ti_sysbios_family_c64p_Exception.enablePrint = true;
RM.edma3_max_rm_instances = 8;
还请各位给予帮助，谢谢！！
Nancy Wang：
请问是要在RTOS下使用UART吗？
直接用最新的sdk中断的uart例程就可以了。
software-dl.ti.com/…/index_device_drv.html
min zhang1：
回复 Nancy Wang:
1、你好，之前最新的PDK用过是可以的。只是现在我们有几个核心算法库是用V7.41的编译编的（目前没有源码），所以用不了最新。
还请帮忙看下这个问题。谢谢！！
2、我用仿真器跟了感觉好像是 Memory_calloc(od->objHeap, od->objSize, od->objAlign, eb)好像是这个分配内存有点问题；（但是不太确认，因为仿真用的库和源码有点对不上）；
Nancy Wang：
回复 min zhang1:
抱歉对GIO模块的使用不熟悉，建议去E2E论坛咨询，看能否获取帮助。https://e2e.ti.com/support/processors/f/791
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