Studio Bluetooth Forum Discussions

Hi

Could you list the encryption key name and key length for CYW20819?

AES 128bit is described on the data sheet.

Is BT E0 128bit also available?

Please tell me everything else.

Thanks,

Yang

hi sir/madam,

when i connected cybt-343026-01 evalution kit usb to windows 7 ports are not recognised. see the attachment.

thanks,

harikrishna g

Hi,

We have a project specifications where audio routing capabilities are required.

We want to know if is possible to put the profile A2DP of CYW20721 in SINK and SOURCE at same time and route the SCO from one role to the other one.

We want to know if is possible the same behaviour in the HFP profile (put the chipset in AG and HF at same time and route the SCOs).

We want to know if chipset can maintain the commented architecture plus SPP profile at same time.

That's all

Regards

Hi,

I am using this module for LED lighting application and configured pins for PWM(P28), relay(P26) and on board led indication(P17). Enclosed my schematic for your understanding.

1. How to configure pin P17 as GPIO to light up indication led LED1 because the following code does not work in WICED6.4

     wiced_hal_gpio_configure_pin(WICED_P17, GPIO_OUTPUT_ENABLE, GPIO_PIN_OUTPUT_HIGH);

     wiced_hal_gpio_set_pin_output(WICED_P17, GPIO_PIN_OUTPUT_HIGH);

2. How to configure pin P28 as PWM because the following code does not work in WICED 6.4

    wiced_hal_aclk_enable(PWM_INP_CLK_IN_HZ, ACLK1, ACLK_FREQ_24_MHZ);

    wiced_hal_gpio_select_function(WICED_P28, PWM1);

    // wiced_hal_pwm_configure_pin(WICED_P28, PWM1);

    wiced_hal_pwm_get_params(PWM_INP_CLK_IN_HZ, 0, PWM_FREQ_IN_HZ, &pwm_config);

    wiced_hal_pwm_start(PWM1, PMU_CLK, pwm_config.toggle_count, pwm_config.init_count, 1);

    //set pwm duty cycle

    wiced_hal_pwm_get_params(PWM_INP_CLK_IN_HZ, brightness_level, PWM_FREQ_IN_HZ, &pwm_config);

    wiced_hal_pwm_change_values(PWM1, pwm_config.toggle_count, pwm_config.init_count);

3. I am getting the following PUART message in the terminal with baudrate 115200, could we get meaningful starting message instead of some junk message?

Ý_öûöý[KöÛÚûÉÚ?Ýòù½ÛÚû{¶ýÛÉÛéûÉÛÉkééIserver trans start time:0 target:3490 present:0 state:2648a8

server trans complete:3490

mesh light srv set level element:0 actual/target:15123/3490 linear/target:15123/3490 remaining_time:0

***** Free mem after app_init:142128

Best regards,

NK

Hi,

关于scan的命令发送后，会有hci_control_le_scan_result_cback回调函数来罗列出被搜到的蓝牙设备。

我的问题是

1. 被搜到的这些设备是根据什么值被依次罗列出来的呢？是按照rssi有信号的强到弱被list出来？还是其他的方式？

2. 如果一轮的scan_duration结束后（如果设备A被搜到了），那么第二轮后，这个A设备会优先被再次搜到吗？有这种优先级吗

BR,

Treacy

Hi,

Could anyone please suggest how to upgrade the CYBT-343026 module with an OTA file. Also, I just want to know any OTA code to be added to the main application code (say ON/OFF server) by WICED 6.4 because OTA failed for CYBT-343026 module in both Android and IOS mobile. Attached snapshot for your reference.

FYI, I am using the latest version of WICED 6.4 and with the same version OTA upgrade successful for the CYBT-483039 module.

Regards,

NK

REa343026

Hi,

Is there a sample code library for the text mode API of EZ-serial. There is one for the binary, but couldn't find one for the text mode.

Thanks,

Se

Hi,

I've another thread with the same question but that thread is locked so I cannot reply at that thread. So I re-created it here.

I'm using CYW43012, which is controlled by another MCU through UART flow-control with standard HCI protocol (not Wiced).

Currently, I'm able to make it advertise normally. However, when I'm using a phone to connect to it, it always fails.

When I look into the HCI data, here is the result when phone is trying to connect to Cypress:

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

BLE_GAP_EVT_ADV_START --------------------------> Start advertising normally

hciEvtProcessMsg: evt=3E, data=0A00400001010FBA4B90174200000000000000000000000018000000480001

DM_CONN_OPEN_IND, r=0, cid=1 -------------------> Phone is trying to connect

hciEvtProcessMsg: evt=3E, data=14400000 --------> Channel selection Algorithm event

hciEvtProcessMsg: evt=FF, data=5500004000 ------> 0xFF as event code indicates that this is a Cypress vendor specific event. I don't know what the meaning of this event.

hciEvtProcessMsg: evt=05, data=00400008 --------> Disconnect event with reason 0x08 (Supervision timeout)

DM_CONN_CLOSE_IND, r=0, cid=1 ------------------> Connection close

hciEvtProcessMsg: evt=0E, data=01082000

hciEvtProcessCmdCmpl: 2008

hciEvtProcessMsg: evt=0E, data=01092000

hciEvtProcessCmdCmpl: 2009

hciEvtProcessMsg: evt=0E, data=01062000

hciEvtProcessCmdCmpl: 2006

hciEvtProcessMsg: evt=0E, data=010A2000

hciEvtProcessCmdCmpl: 200A

BLE_GAP_EVT_ADV_START --------------------------> Start advertising again

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

As you can see, when the phone is trying to connect to Cypress, the Cypress sent back a vendor-specific HCI event along with the event data (marked as RED above).

I've tried finding on google if there is any document about this event code and event data but no luck.

I doubt that this is the reason why the disconnection happens, as the MCU does not handle this event correctly, thus, there is no communication between host and the Cypress board, which leads to disconnect with supervision timeout.

Could you please help explain what is the meaning of this event and what steps do I need to make it connect successfully?

Thank you very much.