Studio Bluetooth Forum Discussions

Hi ,

     My device has no need to open bluetooth at some time like from 00:00 - 8:00 everyday, but it should be awake for sensor to record the value.  Can the bluetooth stack be closed alone to save the power? How to?

thanks.

Dear Sir,

Please inform us the production release status

BLE Module : CYBT-423028-02

Thank you.

As a follow on to this thread: Programming SPI Flash in CB-343026-01 Module​

I need to program the CYBT343026 flash via UART but I'm not sure I have understood right.

Reading WICED HCI UART Control Protocol I have understood that if there isn't the flash connected (it's not the case for CYBT 343026) or if the application inside flash is not valid, the module boot in Bluetooth HCI mode, otherwise execute the application.

In Bluetooth HCI mode or in Application mode (if this one implement the HCI coomands) it's possible to update firmware. If I hold RECOVERY button during the reset, the flash will erase and then the module enter in Bluetooth HCI mode.

That's all right?

1) If I want to update the firmware in Application mode (via UART) how can I perform this? It's not neccesary to create a Boot partition in the flash?

2) What are the HCI commands for update firmware? In WICED HCI UART Control Protocol is not clear what are and if are the same for Bluetooth HCI mode and for Application mode (if this one implement the HCI coomands).

3) what is it for minidriver?

Regards

Hi,

      I followed the example : 20719-B1_Bluetooth\apps\snip\hal\spi_master to create a SPI communication with a 3-axis g-sensor. But I found the SPI_CS will back to inactive too early that will cause an incorrect Writing operation. .

      I also used PSOC6 to do the same thing, and PSOC6 did very well:

These r the codes:

void init_spi()

{

    wiced_hal_pspi_init(SPI_MASTER, INPUT_PIN_PULL_DOWN, MASTER_P38_CLK_P28_MOSI_P01_MISO, DEFAULT_FREQUENCY, SPI_MSB_FIRST, SPI_SS_ACTIVE_LOW, SPI_MODE_3, SPI_CS);

}

void send_data(unsigned char register_address, unsigned char *value, unsigned char number_of_bytes)

{

  unsigned char send_data[2];

  unsigned char rec_data[8];

  if( 1!= number_of_bytes )
  {
    WICED_BT_TRACE("mcube_read_regs bytes error =%d\r\n", number_of_bytes);
  }

  WICED_BT_TRACE("WR: reg = 0x%02x, value = 0x%02x\r\n", register_address, *value);
  send_data[0] = register_address |0x40; // 1 bytes;  write operation
  send_data[1] = *value;

  wiced_hal_pspi_exchange_data(sizeof(send_data), send_data, rec_data);

}

Another question is, Since the SPI_CS is controlled by SPI driver automatically, why the sample code write there red codes?

....

    wiced_hal_gpio_configure_pin(CS, GPIO_OUTPUT_ENABLE, GPIO_PIN_OUTPUT_HIGH);

    wiced_hal_pspi_init(SPI_MASTER, INPUT_PIN_PULL_UP, MASTER_P38_CLK_P28_MOSI_P01_MISO, DEFAULT_FREQUENCY, SPI_LSB_FIRST, SPI_SS_ACTIVE_LOW, SPI_MODE_0, CS);

....

        wiced_hal_gpio_set_pin_output(CS, GPIO_PIN_OUTPUT_LOW);

        wiced_hal_pspi_tx_data(sizeof(start_byte), &start_byte);

        wiced_hal_gpio_set_pin_output(CS, GPIO_PIN_OUTPUT_HIGH);

.....

        wiced_rtos_delay_milliseconds(20, 1);
        wiced_hal_gpio_set_pin_output(CS, GPIO_PIN_OUTPUT_LOW);
        wiced_hal_pspi_rx_data(sizeof(rec_byte), rec_byte);
        wiced_hal_gpio_set_pin_output(CS, GPIO_PIN_OUTPUT_HIGH);

....

We have the CYBT-343026-EVAL evaluation board and I am trying to program the SPI flash internal to the module using the UART interface from my custom software.  The document "WICED-HCI-Control-Protocol.pdf" in section 2.5 has some information about how to download into the serial flash but does not have details about the minidriver.  When I look at the download log generated by using the download feature of the Wiced Studio 6.0,  ChipLoad first downloads a UART minidriver and then sends a WICED flash erase command before downloading the application *.HEX file.

Do I need to follow the method of ChipLoad to download the UART minidriver and erase the SPI flash before downloading a *.HEX file?

The source code for client_control is available but this example only downloads a direct *.HCD image.  Is the source code available from ChipLoad showing how to load a *.HEX file to SPI flash?

To avoid to influence other component while entering into reset state,

we need to know the initial state of every pin in reset state.

Where to find it?

Hi  Sir,

      I have installed Winced studio 6.2 ,when I build hello_sensor, there are some errors ,eg.

  How to correct it?

  Thanks.