Wi-Fi Combo Forum Discussions

Hi all,

I'm facing the problem of unexpected behavior (mostly system freeze) when trying to initialize secure pRNG (Fortuna) with:

wiced_crypto_use_secure_prng()

Environment:

1. SDK 6.2.0.72

2. HW: ISM43903 module

In my case freeze happens when SDK is internally calling:

wiced_hw_sha256_starts()

Looks like more or less memory leak, but I might be wrong (didn't trace it carefully).

I saw that since SDK 6.1.0.85 introduced (enabled by default) alternative crypto functionalities basing on HW (eg. sha256_alt.c etc.).

Disabling usage of HW crypto alts fixes described problem:

GLOBAL_DEFINES += WICED_CONFIG_DONOT_USE_HW_CRYPTO

Is it possible to use HW crypto functionalities using 43903 platform and SDK 6.2?

I just freshly installed WICED Studio 6.2 and am interested in learning how to build

FreeRTOS programs in the WICED Studio IDE for the CYW943907AEVAL1F Evaluation Board.

There is a Makefile provided by the WICED Studio 6.2 installation in this directory:

     Documents/WICED-Studio-6.2/43xxx_Wi-Fi/WICED/RTOS/FreeRTOS/FreeRTOS.mk

As I understand, it is currently using the FreeRTOS 9.0.0 library.

I have been trying to understand how to build the sample program that this Makefile provides and learn exactly what it does,

so that I can use it as a template for building my own program, but I cannot figure out how to write a functioning 'Make Target' for it.

I tried to create a 'Make Target' using the string "FreeRTOS-CYW943907AEVAL1F download run", but it produces the following errors:

     ./tools/makefiles/wiced_config.mk:420: *** No application specified. Options are: README.txt demo snip test waf wwd.  Stop.

     make: *** No rule to make target `build/FreeRTOS-CYW943907AEVAL1F/config.mk', needed by `main_app'.  Stop.

Can someone please help me understand the correct syntax for a 'Make Target' to build the FreeRTOS sample?

A little extra information:

     - Running WICED Studio 6.2.

     - The only experience I have with WICED Studio is from Alan Hawse's video series, linked here.

     - I am on a Linux Ubuntu 16.04 machine.

     - Working with a CYW943907AEVAL1F Evaluation Board.

     - Will need to eventually upgrade from FreeRTOS to Amazon FreeRTOS, which I have been told is simply version 10.0.1.

Message was edited by: Jeremy Higgins Clarifying question. Would like to learn how to get WICED Studio to build the FreeRTOS kernel version 10.0.1 instead of version 9.0.0.

ludovicw​ and jerome_2594171​

Thanks for the response here: AMQP Azure : receiver and sender functions.​

Unfortunately when i implement this fix I get no activity on the Azure Cloud side. From the Device perspective status is OK on data transfer and it successfully detaches and it loops around, but again no message is received on cloud side. Were you able to see the message content successfully passed and displayed within Azure Device Explorer Twin?

Thx, Chuck

I'm having issues with timing when I enable mcu powersave (wiced_platform_mcu_enable_powersave).  I've attached a small program to demonstrates the issue.

The program just prints out the timestamp once a minute.  When mcp powersave is disabled, the timing is very consistent.  When enabled, the interval and the internal time-tracking are messed up.

Example output with each line timestamped:

Thu Apr 28 14:33:18 2016:  Starting WICED

...

Thu Apr 28 14:33:42 2016:  Enable MCU powersave

Thu Apr 28 14:33:42 2016:  Create thread and timed event

Thu Apr 28 14:33:42 2016:  Running

Thu Apr 28 14:34:20 2016:  Time: 1970-01-01T00:02:19.043568 <-- Should be one minute intervals

Thu Apr 28 14:34:30 2016:  Time: 1970-01-01T00:03:49.029000 <-- Printed 10 seconds later. Module thinks one minute 30 seconds has passed

Thu Apr 28 14:35:13 2016:  Time: 1970-01-01T00:05:50.042392

Thu Apr 28 14:35:55 2016:  Time: 1970-01-01T00:07:50.030248

Thu Apr 28 14:36:36 2016:  Time: 1970-01-01T00:09:49.057640

Thu Apr 28 14:37:17 2016:  Time: 1970-01-01T00:11:48.003000

Thu Apr 28 14:38:06 2016:  Time: 1970-01-01T00:13:55.058392

Without mcu powersave enabled:

Thu Apr 28 15:02:36 2016:  Starting WICED

...

Thu Apr 28 15:03:00 2016:  Create thread and timed event

Thu Apr 28 15:03:00 2016:  Running

Thu Apr 28 15:04:00 2016:  Time: 1970-01-01T00:01:23.057712

Thu Apr 28 15:05:00 2016:  Time: 1970-01-01T00:02:23.057712

Thu Apr 28 15:06:00 2016:  Time: 1970-01-01T00:03:23.057712

Thu Apr 28 15:07:00 2016:  Time: 1970-01-01T00:04:23.057712

Thu Apr 28 15:08:00 2016:  Time: 1970-01-01T00:05:23.057712

Thu Apr 28 15:09:00 2016:  Time: 1970-01-01T00:06:23.057712

Thu Apr 28 15:10:00 2016:  Time: 1970-01-01T00:07:23.057712

Thu Apr 28 15:11:00 2016:  Time: 1970-01-01T00:08:23.057712

Thu Apr 28 15:12:00 2016:  Time: 1970-01-01T00:09:23.057712

Thu Apr 28 15:13:00 2016:  Time: 1970-01-01T00:10:23.057712

Thu Apr 28 15:14:00 2016:  Time: 1970-01-01T00:11:23.057712

I'm running WICED SDK 3.5.2 with the Avnet BCM4343W IoT module. Compiled with snip.mcu_powersave-BCM94343W_AVN download run.  Anyone have any idea what's wrong?

Thanks,

-Rob

Hello,

In WICED V6.1

When I'm trying to send a notification with BLE function wiced_bt_gatt_send_notification, I had :

00:02:03.955000 GKI_exception(): Task State Table

00:02:03.960000 GKI_exception 65535 Enqueue - Buffer corrupted

Can you help me to understand the problem ?