CC3100SDK: Problem porting Multithreaded example to STM32

Otto Parzhuber

Part Number: CC3100SDK
Other Parts Discussed in Thread: CC3100,

Hi Dear Support,

I have following problem compiling an example with Multithreading enabled. I have got errors in the file user.h. The following line in user.h is the first of similar errors:

#define sl_SyncObjCreate(pSyncObj,pName) osi_SyncObjCreate(OsiSyncObj_t* pSyncObj)

Description Resource Path Location Type
expected expression before 'OsiSyncObj_t' user.h /FreeRTOS_CC3100_F446RE/Src/cc3100-sdk/platform/stm32nucleo line 773 C/C++ Problem

The following Preprocessor Define:

#define sl_SyncObjWait(pSyncObj,Timeout) osi_SyncObjWait(OsiSyncObj_t* pSyncObj , OsiTime_t Timeout)

results in this error:

Description Resource Path Location Type
too few arguments to function 'osi_SyncObjWait' user.h /FreeRTOS_CC3100_F446RE/Src/cc3100-sdk/platform/stm32nucleo line 834 C/C++ Problem

My Development environment is OpenSTM32/AC6

Thank you for your help.

Otto Parzhuber

over 7 years ago

0 Austin Tanner over 7 years ago

TI__Expert 8255 points

Hi Otto,

In the TI porting guide included in the SDK (cc3100_sdk\docs\simplelink_api\html\index.html) step 6 mentions:

"If you choose to work in multi-threaded environment under operating system you will have to provide some basic adaptation routines to allow the driver to protect access to resources for different threads (locking object) and to allow synchronization between threads (sync objects). In addition, the driver support running without dedicated thread allocated solely to the simple link driver. If you choose to work in this mode, you should also supply a spawn method that will enable to run function on a temporary context."

Thus, the two functions in your example osi_SyncObjCreate and osi_SyncObjWait are likely not defined in your application. In the TI SDK examples with multi-threading these definitions are normally found in the cc_pal.c (porting abstraction layer). Once you provide the thread sync objects these errors should resolve.

0 user4185670 over 7 years ago

Prodigy 10 points

include files : \ti\CC3100SDK_1.2.0\cc3100-sdk\oslib\osi_freertos.c

0 Otto Parzhuber over 7 years ago in reply to Austin Tanner

Prodigy 250 points

Thank you Austin for your help.

Meanwhile I've managed to successfully build the mqtt example.

But now my program get stuck in the HardFault Handler after the call to the function prvPortStartFirstTask( void ).

I have no idea how to solve this problem?

0 Otto Parzhuber over 7 years ago in reply to Otto Parzhuber

Prodigy 250 points

This is the contents of the registers after the Hard Fault. 

pulFaultStackAddress	uint32_t *	0x2001ffdc	
r0	volatile uint32_t	0x2001ff98 (Hex)	
r1	volatile uint32_t	0x20020000 (Hex)	
r2	volatile uint32_t	0xf00000 (Hex)	
r3	volatile uint32_t	0xe000ef34 (Hex)	
r12	volatile uint32_t	0xc0000000 (Hex)	
lr	volatile uint32_t	0x0 (Hex)	
pc	volatile uint32_t	0x80055ff (Hex)	
psr	volatile uint32_t	0x8005510 (Hex)

I believe the lr register contents is nosense.....