ModusToolbox Bluetooth SDK

Hi,

We're currently working with the `CYW920721B2EVK-02` devkit off of the `mtb-example-btsdk-audio-handsfree` example in the SDK. I've been having trouble getting my phone to reconnect to the device both after reset, and after simply turning bluetooth off, and then on again on my phone. 

I'm not very familiar with bluetooth, but I tried simply storing my phone's 6 byte `bd_addr` and calling `wiced_bt_connect(my_phone_addr);` after disconnecting my phone. Which did not work. 

Does anyone have any suggestions?

Thanks

https://community.cypress.com/t5/ModusToolbox-Bluetooth-SDK/CYW20819-LPM-and-UART/m-p/93362

On my previous thread, I got the following message.

"Please note that PUART hardware flow control has some in the current SDK. Our dev team has already fixed the issue, and the fix will be available on the next SDK."

Could I have the information whether the issue is fixed on SDK v2.9?
It seems that Hardware flow is disabled by LPM (ePDS) even if I use SDK v2.9.

Hello,

I would like to enable ERTM on the L2CAP services over BR/EDR link.

I have tried to enable FCR through the wiced_bt_l2cap_appl_information_t structure (fcr_present set to true and fcr.mode set to 0x3) but it does not seem to work. I also tried to call wiced_bt_l2cap_ertm_enable function, but its documentation is not clear so I am not really sure but it actually does.

Does anyone know how to enable ERTM properly on my link? Do you know what wiced_bt_l2cap_ertm_enable does?

Thanks for your help.

I found that "post_sleep_cback_handler" is not called by BT stack at waking up from LPM at the following condition.

[Condition]

 (1) Have enter CYW20819 into slave state (Inquiry / Page scan enable: ON)

 (2) Permit LPM (Return WICED_SLEEP_ALLOWED_WITHOUT_SHUTDOWN: ePDS)

 (3) A peer device tries to pair --> (Fail: PIN code mismatch, Passkey error)

 (4) A peer device re-tries to pair --> (Success)

 (5) Forbids  LPM (Return WICED_SLEEP_NOT_ALLOWED)

With paring operation and WICED_SLEEP_NOT_ALLOWED, CYW20819 must wake up from LPM. But  "post_sleep_cback_handler" is NOT called with "restore_configuration: True".

Briefly when re-pairing is performed on LPM state, wake-up callback with "restore_configuration: True" is NOT called.

I re-initialize UART (RTS/CTS) in the callback, so I faced the problem with UART by above issue.

Please check this issue.

---------------------------------------------

void lpm_init(void){
wiced_result_t ret;
wiced_sleep_config_t lpm_config;

lpm_config.sleep_mode = WICED_SLEEP_MODE_NO_TRANSPORT;
lpm_config.device_wake_mode = WICED_SLEEP_WAKE_ACTIVE_LOW;
lpm_config.device_wake_source = 0;
lpm_config.device_wake_gpio_num = 0;
lpm_config.host_wake_mode = WICED_SLEEP_WAKE_ACTIVE_HIGH;
lpm_config.sleep_permit_handler = lpm_permit_handler;
lpm_config.post_sleep_cback_handler = lpm_post_sleep_callback;

ret = wiced_sleep_configure(&lpm_config);
if(ret != WICED_SUCCESS) while(1);

return;
}

void lpm_post_sleep_callback(wiced_bool_t restore_configuration){

if(restore_configuration){
uart_reinit();
wiced_auth_chip_reinit();
}

return;
}

Hi,

I want to implement the process of sending an arbitrary key code based on the sample code HID_Dual_Mode_Keyboard.

I tried to implement the following code, but even though WICED_BT_GATT_SUCCESS is returned in wiced_blehidd_send_report(), no characters are entered in the peer device (PC).

* If the sample code has not been changed, "a1" is entered.

Would you tell me how to implement?

#define SEND_DATA_LENGTH 8
static uint8_t m_send_data[SEND_DATA_LENGTH] = {0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x00, 0x00}; /* 'h' */

/*
 * Handle interrupt generated due to change in the GPIO state
 */
static void hal_gpio_app_interrrupt_handler(void *data, uint8_t pin)
{
    static bool led_state = false;

    if (wiced_blehidd_is_link_encrypted() != WICED_FALSE)
    {
        if (wiced_blehidd_send_report(0x0000, 0x00, WICED_HID_REPORT_TYPE_INPUT, m_send_data, SEND_DATA_LENGTH) == WICED_BT_GATT_SUCCESS)
        {
            /* LED ON */
        }
    }
}

static void gpios_init(void)
{
    wiced_hal_gpio_register_pin_for_interrupt(0, hal_gpio_app_interrrupt_handler, NULL); /* D2 button */
    wiced_hal_gpio_configure_pin(0, WICED_GPIO_BUTTON_SETTINGS(GPIO_EN_INT_RISING_EDGE), GPIO_PIN_OUTPUT_LOW);
}

wiced_result_t app_start(void)
{
    ...
#if 0
    key_init(NUM_KEYSCAN_ROWS, NUM_KEYSCAN_COLS, APP_pollReportUserActivity, APP_keyDetected);
#else
    debug_init();
#endif
    ...
}

HW: CYW920735Q60EVB-01

PC: Windows 10

IDE: Eclipse IDE for ModusToolbox Version 2.2.0

SW: Based on HID_Dual_Mode_Keyboard.

Regards, Gotoda