为何用CC3220S launchpad 在flash中创建文件失败？

convex j

Other Parts Discussed in Thread: CC3220S

char* DeviceFileName = "test.txt";
uint32_t MaxSize = 60*1024; //60K is max file size
int32_t DeviceFileHandle = -1;
int32_t RetVal; //negative retval is an error
uint32_t Offset = 0;
unsigned char InputBuffer[100];
unsigned long MasterToken = 0;

// Create a file and write data. The file in this example is secured, without signature and with a fail safe commit
//create a secure file if not exists and open it for write.
DeviceFileHandle = sl_FsOpen((unsigned char *)DeviceFileName,
SL_FS_CREATE|SL_FS_OVERWRITE | SL_FS_CREATE_SECURE | SL_FS_CREATE_NOSIGNATURE | SL_FS_CREATE_MAX_SIZE( MaxSize ),
&MasterToken);

if( DeviceFileHandle < 0 )
{
printf("create file %s failed!\n", DeviceFileName);
}

运行到这里，返回值-2018，错误！什么原因呢？

7 年多前

0 Viki Shi 7 年多前

TI__Guru**** 188340 points

错误的完整log能否提供？

0 convex j 7 年多前回复 Viki Shi

Prodigy 210 points

只是在先前运行正常的一个DEMO 工程的main_tirtos.c 中，添加了flash 文件操作测试：
插入在主线程创建之前。
报错Log非常简单，就是上面源码中的出错打印信息。
create file Wlist.txt failed!

请问有没有example project 涉及到对cc3220S launchpad 串行flash创建读写文件？或者是有什么文档能参考？

/*
* ======== main ========
*/
int main(void)
{
pthread_t thread;
pthread_attr_t pAttrs;
struct sched_param priParam;
int retc;
int detachState;

/* Call board init functions */
Board_initGeneral();

/* Set priority and stack size attributes */
pthread_attr_init(&pAttrs);
priParam.sched_priority = 1;

detachState = PTHREAD_CREATE_DETACHED;
retc = pthread_attr_setdetachstate(&pAttrs, detachState);
if(retc != 0)
{
/* pthread_attr_setdetachstate() failed */
while(1)
{
;
}
}

pthread_attr_setschedparam(&pAttrs, &priParam);

retc |= pthread_attr_setstacksize(&pAttrs, THREADSTACKSIZE);
if(retc != 0)
{
/* pthread_attr_setstacksize() failed */
while(1)
{
;
}
}

//test flash file system
FsTest();

retc = pthread_create(&thread, &pAttrs, mainThread, NULL);
if(retc != 0)
{
/* pthread_create() failed */
while(1)
{
;
}
}

BIOS_start();

return (0);
}

0 Viki Shi 7 年多前回复 convex j

TI__Guru**** 188340 points

看下这个文件： file:///C:/ti/simplelink_cc32xx_sdk_2_20_00_10/docs/wifi_host_driver_api/html/group___file_system.html
需安装SDK

0 Yonghua Pan 7 年多前回复 convex j

TI__Mastermind 20826 points

你要在sl_Start()调用之后才可以读写文件的。

0 convex j 7 年多前回复 Yonghua Pan

Prodigy 210 points

的确如您所说：调用sl_Start()后即可读写文件了。谢谢！
This function must be called before any other SimpleLink API is used, or after sl_Stop is called for reinit the device。

但还有疑问：
1，lRetVal = sl_Start(0, 0, 0); 和lRetVal = sl_Start(NULL, NULL, NULL); 这两个语句有何区别？
2，假设每个线程都要用到API，那需要分别启用sl_Start()和sl_Stop吗？

0 Yonghua Pan 7 年多前回复 convex j

TI__Mastermind 20826 points

1. 没区别

2. 只要有一个线程调用了就好了。

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为何用CC3220S launchpad 在flash中创建文件失败？