WICED™ Studio Forum Discussions

Dear Infineon team,

I am trying to capture the raw data from four I2S microphones running with the CYW943907AEVAL1F (not planning to use a codec). I am using the API within wiced_audio.h (simplified code sample below), and would like to set up both I2S buses for receive. Looking at the API, I was assuming that I can use device IDs AUDIO_DEVICE_ID_I2S_0_ADC / AUDIO_DEVICE_ID_I2S_1_ADC to achieve this, but I have had no luck so far. In order to keep things simple, I have tried to get only one channel running first, with the following results (when calling wiced_audio_init()):

• AUDIO_DEVICE_ID_I2S_0_ADC - all setup succeeds, but mclk(J6.3)/bclk(J6.5)/lrclk(J6.6) lines do not toggle
• AUDIO_DEVICE_ID_I2S_1_ADC - all setup succeeds, but mclk(J6.26)/bclk(J6.29)/lrclk(J6.27) lines do not toggle
• AUDIO_DEVICE_ID_SPDIF_ADC - all setup succeeds, mclk(J6.3)/bclk(J6.5)/lrclk(J6.6) lines DO toggle
• AUDIO_DEVICE_ID_SPDIF_DAC - wiced_audio_init returns failure

Is there anything obvious I am missing in the way I am attempting to set up the I2S subsystem? This is my first foray into the WICED SDK and this chipset, so it is quite possible that I am missing something very basic.

I am using WICED Studio because MODUS Toolbox does not seem to support WiFi Direct (which my project also requires). From my forum searches, it seems WICED Studio SDK 6.x has stripped out previously available (SDK 5.x) audio examples, and all the download links to the 5.x version of the SDK seem to be broken, so I am a bit at wits end.

I appreciate any help/direction.

My project submake has

• GLOBAL_DEFINES += WICED_USE_AUDIO

My project application file is as follows:

// #define AUDIO_DEVICE AUDIO_DEVICE_ID_I2S_0_ADC // Does not activate any clock lines
// #define AUDIO_DEVICE AUDIO_DEVICE_ID_I2S_1_ADC // Does not activate any clock lines
#define AUDIO_DEVICE AUDIO_DEVICE_ID_SPDIF_ADC // Activates I2S_1 clock lines
// #define AUDIO_DEVICE AUDIO_DEVICE_ID_SPDIF_DAC // wiced_audio_init() returns failure


wiced_audio_session_ref mic_pair_1;
void application_start(void)
{
    wiced_init();

    /* The following call registers the I2S/SPDIF Audio devices */
    if (platform_init_audio() != WICED_SUCCESS)
    {
        WPRINT_APP_INFO(("platform_init_audio FAILED\n"));
    }

    memset(&mic_pair_1, 0, sizeof(wiced_audio_session_ref));
    if (wiced_audio_init(AUDIO_DEVICE_ID_I2S_0_ADC, &mic_pair_1, WICED_AUDIO_DEVICE_PERIOD_SIZE) != WICED_SUCCESS)
    {
        WPRINT_APP_INFO(("wiced_audio_init FAILED\n"));
    }

    if (wiced_audio_create_buffer(mic_pair_1, WICED_AUDIO_DEVICE_PERIOD_SIZE * 2, NULL, NULL) != WICED_SUCCESS)
    {
        WPRINT_APP_INFO(("wiced_audio_create_buffer FAILED\n"));
    }

    wiced_audio_config_t config;
    // config.period_size     = WICED_AUDIO_DEVICE_PERIOD_SIZE; /* Default set in wiced_audio.h */
    config.sample_rate     = 16000; /* See i2s_pll_config for list of all possible sample rates*/
    config.bits_per_sample = 16;    /* Assuming this is Data Bits, between 8-32, default 16. */
    config.channels        = 2;
    config.frame_size      = (config.bits_per_sample * config.channels) / 8;
    config.volume          = 100; /* Percent attenuation */
    if (wiced_audio_configure(mic_pair_1, &config) != WICED_SUCCESS)
    {
        WPRINT_APP_INFO(("wiced_audio_configure FAILED\n"));
    }

    if (wiced_audio_start(mic_pair_1) != WICED_SUCCESS)
    {
        WPRINT_APP_INFO(("wiced_audio_start FAILED\n"));
    }
    WPRINT_APP_INFO(("Audio started\n"));
}

Hi Team,

I am upgrading Wiced_2.3 library  to wiced_6.6 library, I used BCM9WCDUSI09 platform folder in wiced_2.3 library however I could not find this folder in wiced_6.6 library, Which one should I use in Wiced_6.6 library ? Below is some information about chips and controller

WLAN_CHIP := 43362
WLAN_CHIP_REVISION := A2
WLAN_CHIP_FAMILY := 43362
HOST_MCU:= STM32F2xx
Please help me where should I look for same, It would be great help for me If you guys could help me as soon as possible. 

Thanks 
Kaushal Panchal