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Anonymous
Not applicable

Why can not I get a break in the function  "wiced_join_events_handle" which is from line 964~1192 of the file(/Wiced-SDK/WICED/WWD/internal/wwd_wifi.c) in WICED SDK3.1.2? Other functions can get a break normally.

My Make Target is:

wwd.canned_send-BCM943362WCD4-NoOS-NoNS-SPI-debug no_dct download run

After the app is downloaded to BCM9WCD1EVAL1,it can connect my router successfully and run well, but I can not get a break in the function "wiced_join_events_handle" while I am debugging with WICED IDE 3.1.2.  All of the code has not been modified.

Why?

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10 Replies
MudeL_51
Employee
Employee
10 replies posted 5 replies posted First solution authored

Hi Liwanfei,

In my EVB "BCM943362WCD4", it is OK.

There is one thing mismatch in your description: the platform in your make target is "BCM943362WCD4", but your EVB is "BCM9WCD1EVAL1".

As I known, the breakpoint number is limited. If the breakpoint is reached the max number, it can't be set successfully.

You can check the log in the console to find whether your breakpoint is set successfully or not.

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Anonymous
Not applicable

Thanks a lot. BCM943362WCD4 is the WIFI module which on the EVB BCM9WCD1EVAL1. My breakpoint number is 3.


I can not get a break in Only the function  "wiced_join_events_handle" ,  Other functions can get a break normally.


Can you get a breakpoint in line 964~1192 of the file(/Wiced-SDK/WICED/WWD/internal/wwd_wifi.c )  in the app wwd.canned_send  which has NoOS  and NoNS by SPI?


Thanks.

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Hi Liwanfei,

I'm using 3.1.2 with the target

     wwd.canned_send-BCM943362WCD4-NoOS-NoNS-SPI-debug no_dct

I'm able to get a break in wiced_join_events_handler() fine. If you're able to connect to the router there should be no reason why you can't break in the event handler function. Could you try reopening the IDE and build a clean version of the app?

Here's the screenshot I took of my debugger and putty output.

debug.PNG

Thanks,

Jaeyoung

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Anonymous
Not applicable

Hi, Jaeyoung,

     Sorry for overdue response . I am busy these days.

     My OS is  Windows XP EN SP3. My steps as following :

1> BCM9WCD1EVAL1 is powered off,  after 5 seconds BCM9WCD1EVAL1 is powered on.


2> Launch Wiced SDK 3.1.2 IDE


3> I doubt that the function do not working well, hence

      I add printed info at line  290  in the file "/Wiced-SDK312/WICED/WWD/internal/wwd_thread.c"as following:

     line  290 printf("\r\n FUN wwd_thread_func Start... \n");    // function start

     line  353 printf("\r\n FUN wwd_thread_func End... \n");     // function end


4> Make target: wwd.canned_send-BCM943362WCD4-NoOS-NoNS-SPI-debug no_dct download run


5> wwd.canned_send do not work well.

     not print: FUN wwd_thread_func Start...


6> Debug with breakpoint:

      I can not get a break in the function "wiced_join_events_handle".


7> BCM9WCD1EVAL1 is powered off,  after 5 seconds BCM9WCD1EVAL1 is powered on.


8> wwd.canned_send do not work well.

      not print: FUN wwd_thread_func Start...


9> Debug with breakpoint:

      I can not get a break in the funtion "wiced_join_events_handle".


10> Step Debug: it stoped at

        line 247   retval = wwd_sdpcm_send_iovar( SDPCM_SET, buffer, 0, WWD_STA_INTERFACE );

        in file  "/Wiced-SDK312/WICED/WWD/internal/wwd_management.c"

It happened as following:

1> BCM9WCD1EVAL1 is powered off,  after 5 seconds BCM9WCD1EVAL1 is powered on.

2> Launch Wiced SDK 3.1.2 IDE


3> I doubt that the function do not working well, hence

      I add printed info at line  290  in the file "/Wiced-SDK312/WICED/WWD/internal/wwd_thread.c"as following:

     line  290 printf("\r\n FUN wwd_thread_func Start... \n");    // function start

     line  353 printf("\r\n FUN wwd_thread_func End... \n");     // function end


4> Make target:  wwd.ping-BCM943362WCD4-SPI-FreeRTOS-LwIP-SPI download run


5> wwd.ping work well.

     printed: FUN wwd_thread_func Start...


6> Make target: wwd.canned_send-BCM943362WCD4-NoOS-NoNS-SPI-debug no_dct download run


7> wwd.canned_send work well.

     but not print: FUN wwd_thread_func Start...


8> Debug with breakpoint:

      I can get a break in the function "wiced_join_events_handle".


9> BCM9WCD1EVAL1 is powered off,  after 5 seconds BCM9WCD1EVAL1 is powered on.


10> wwd.canned_send do not work well.

       but not print: FUN wwd_thread_func Start...


11> Debug with breakpoint:

       I can not get a break in the funtion "wiced_join_events_handle".


12> Step Debug: it stoped at

        line 247   retval = wwd_sdpcm_send_iovar( SDPCM_SET, buffer, 0, WWD_STA_INTERFACE );

        in file  "/Wiced-SDK312/WICED/WWD/internal/wwd_management.c"

I want to know why wwd.canned_send do not work well by oneself.





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Hi Liwanfei,

So the print you added is right after the send UP command block in wwd_management_wifi_on()?

     line  290 printf("\r\n FUN wwd_thread_func Start... \n");    // function start


If the above is not printing then not being able to get a break on wiced_join_events_handle() makes sense. The code is probably getting stuck somewhere or returning an error and aborting before the wiced_join() gets called.

Try uncommenting the following line from /include/wiced_defaults.h to get better visibility of what's happening.

#define WPRINT_ENABLE_WWD_ERROR

I'm not sure how the below is happening though. Are you sure everything works well in the below example and it still does not print out "FUN wwd_thread_func Start..."?

6> Make target: wwd.canned_send-BCM943362WCD4-NoOS-NoNS-SPI-debug no_dct download run


7> wwd.canned_send work well.

     but not print: FUN wwd_thread_func Start...


8> Debug with breakpoint:

      I can get a break in the function "wiced_join_events_handle".

Thanks,

Jaeyoung

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Anonymous
Not applicable

Hi, Jaeyong,

I appriciated of your help very much.

You mentioned:

I'm not sure how the below is happening though. Are you sure everything works well in the below example and it still does not print out "FUN wwd_thread_func Start..."?

6> Make target: wwd.canned_send-BCM943362WCD4-NoOS-NoNS-SPI-debug no_dct download run


7> wwd.canned_send work well.

     but not print: FUN wwd_thread_func Start...


8> Debug with breakpoint:

      I can get a break in the function "wiced_join_events_handle".


My answer:


After

Make target:  wwd.ping-BCM943362WCD4-SPI-FreeRTOS-LwIP-SPI download run


wwd.ping work well, print info: "FUN wwd_thread_func Start..."


then, not power off,

Make target: wwd.canned_send-BCM943362WCD4-NoOS-NoNS-SPI-debug no_dct download run


wwd.canned_send work well.  not print out "FUN wwd_thread_func Start..."


then, power off,  after 5 seconds,  powered on.

wwd.canned_send do not work well.  not print out "FUN wwd_thread_func Start..."




I doubt that


wwd.canned_send work well from the parameters of  wwd.ping in RAM.















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I remember there is a bug in the snip "wwd.canned_send".

Please check whether the variable "pkt_buffer" is 4 bytes align when the issue is happened.

SIDO is used DMA to tranfer command to WIFI chip. And the buffer tranfered by DMA  required 4 bytes align.

You can modify

static char pkt_buffer[ ((MAX( PACKET_SIZE, MIN_IOCTL_BUFFER_SIZE )+63)&(~63))+4 ];

to

static char pkt_buffer[ ((MAX( PACKET_SIZE, MIN_IOCTL_BUFFER_SIZE )+63)&(~63))+4 ] __attribute__ ((aligned(4)));

and have a try.

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Anonymous
Not applicable

Thanks a lot.

printf("\r\n pkt_buffer size = %d   \r\n",  sizeof(pkt_buffer));

// lwf not add  __attribute__ ((aligned(4))) = pkt_buffer size = 132

printf("\r\n pkt_buffer size = %d   \r\n",  sizeof(pkt_buffer));

// lwf not add  __attribute__ ((aligned(4))) = pkt_buffer size = 132

printf("\r\n Size____pkt_buffer = %d  \r\n",

( (MAX( PACKET_SIZE, MIN_IOCTL_BUFFER_SIZE ) +63) & (~63)) +4);    // 132 

MIN_IOCTL_BUFFER_SIZE=120  (120+63)&(~63)+4=183&(~63)+4=128+4=132

this is  4-bytes aligned。

make , then, download, run.  there are nothing changed.


Thanks.

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The 4 bytes align means that the start address of "pkt_buffer" is multiple of 4.

So, you need to printf the address of "pkt_buffer".

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Anonymous
Not applicable

#define WPRINT_ENABLE_WICED_INFO        /* Wiced internal prints */

#define WPRINT_ENABLE_WICED_DEBUG       // lwf changed uncomment ori= commented

#define WPRINT_ENABLE_WICED_ERROR       // lwf changed uncomment ori= commented

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

#define WPRINT_ENABLE_WWD_INFO             /* Wiced Wi-Fi Driver prints */   

//#define WPRINT_ENABLE_WWD_DEBUG       // lwf NOT changed else running Failed:  will blocked at: Wcd:> Sending pkt 0x200008E8

#define WPRINT_ENABLE_WWD_ERROR           // lwf changed uncomment ori= commented

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

#define WPRINT_ENABLE_PLATFORM_INFO      /* Platform prints */

#define WPRINT_ENABLE_PLATFORM_DEBUG     // lwf changed uncomment ori= commented

#define WPRINT_ENABLE_PLATFORM_ERROR     // lwf changed uncomment ori= commented

//////////////////////////////////////////////////////////////////////////////////////////

log output as following:

Make target:  wwd.ping-BCM943362WCD4-SPI-FreeRTOS-LwIP-SPI download run

and

Make target: wwd.canned_send-BCM943362WCD4-NoOS-NoNS-SPI-debug no_dct download run

2015-06-04 Platform BCM943362WCD4 initialised

Starting Wiced v3.1.2

Into wwd_bus_init()

______ Finish wwd_bus_init()

______ Set Turn off SDPCM TX Glomming

______ Set Turn APSTA on

______ Set country command

______ Set event mask

______ Set WLC_UP

______ Set WLC_SET_GMODE

______ End wwd_management_wifi_on()

____ Get mac_address

Joining : LOVE999-WR-4

______ Set Wireless Security Type

______ Set supplicant variable

______ Set EAPOL version

______ Set WPA Key

______ Set infrastructure mode

______ Set authentication type

______ Set WPA authentication mode

______ Set WLC_SET_SSID

______ Into Get join_sema

______ Set join_sema +1

______ Exit Get join_sema

wwd_wifi_is_ready_to_transceive  OKSuccessfully joined : LOVE999-WR-4

Sending ARP request

Received a ARP bag

will Sending...

Received a ARP bag

will Sending...

will Sending...

Received a ARP bag

will Sending...

will Sending...

will Sending...

////////////////////////////////////////////////////

Power off, after 5 seconds, power on:

2015-06-04 Platform BCM943362WCD4 initialised

Starting Wiced v3.1.2

Into wwd_bus_init()

______ Finish wwd_bus_init()

______ Set Turn off SDPCM TX Glomming

______ Set Turn APSTA on

______ Set country command

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