PSoC™ 4 Forum Discussions

Is there a possibility to use the BLE module as a simple UART connection (like those chinese hc-06 breakouts)?

I tried a few things but without any sucess.

Hi.

i am working on PWM  to generate the continous signal  but after few seconds PWM stops working.

If i made a  CyBle_ProcessEvents(); as commented  than PWM working fine   but i want to use the  CyBle_ProcessEvents(); and PWM also.

please help me to resolve the issue thanks in advance.

i attached my project please find thw attachment.

The default community standard for UART over BLE appears to be UUID = 6E400002-B5A3-F393-E0A9-E50E24DCCA9E

Does anyone have an implementation on Cypress BLE?

Thanks

how do i get the device name to my central after:

case CYBLE_EVT_GATT_CONNECT_IND:

     connHandle = *(CYBLE_CONN_HANDLE_T *)eventparam

GPIOを用いて、LEVEL_Highでの外部割り込み検出,LEVEL_Lowでの割り込み検出する方法を教えてください。

(立ち上がりエッジ・立下りエッジ・両エッジでの外部割込みは確認できました。)

Hi,

I was using the component SCB_P4 3.20 as an I2C component. I updated the component to 4.0, added the timeout value to the functions, as described in the datasheet, but my code doesn't work anymore. I've compared the generated files before and after the change, but there is too much for me to pinpoint the issue. Here is my code :

#define I2C_TIMEOUT_MS          (100)

int I2C_read(unsigned char *buf, int bufferSize) {

    // Read must be passed the following format with expected start, restart,

    // stop to be inserted

    // buf[0]: ADDRESS + W

    // buf[1]: REG ADDRESS

    // buf[2]: ADDRESS + R

    int cnt,

        status = bufferSize;

    uint32_t devAddr,

             rdVal,

             err;

    // Extracting

    devAddr = (uint32_t)((buf[0] >> 1) & 0x7F);

    // Sending Start and address + w followed by the register address

    if ( I2C_I2CMasterSendStart(devAddr, 0, I2C_TIMEOUT_MS) != I2C_I2C_MSTR_NO_ERROR ) { return -1; }

    if ( I2C_I2CMasterWriteByte(buf[1], I2C_TIMEOUT_MS) != I2C_I2C_MSTR_NO_ERROR ) { return -1; }

    // Sending Restart and reading data

    I2C_I2CMasterReadBuf(devAddr, buf, bufferSize, I2C_I2C_MODE_COMPLETE_XFER | I2C_I2C_MODE_REPEAT_START);

    while( !((err = I2C_I2CMasterStatus()) & (I2C_I2C_MSTAT_RD_CMPLT | I2C_I2C_MSTAT_ERR_XFER)) ) {

        CySysPmSleep();

    }

    I2C_I2CMasterClearReadBuf();

    return status;

}

int I2C_write(unsigned char *buf, int bufferSize) {

    // Write must be passed the following format with expected start and

    // stop to be inserted

    // buf[0]: ADDRESS + W

    // buf[1]: REG ADDRESS

    // buf[2 to 2+bufferSize]: value

    int cnt;

    uint32_t devAddr, err;

    // Extracting

    devAddr = (uint32_t)((buf[0] >> 1) & 0x7F);

    // Sending Start and address + w followed by the register address and then values

    if ( I2C_I2CMasterSendStart(devAddr, 0, I2C_TIMEOUT_MS) != I2C_I2C_MSTR_NO_ERROR ) { return -1; }

    for ( cnt = 1; cnt < bufferSize + 2; cnt++ ) {

        if ( I2C_I2CMasterWriteByte(buf[cnt], I2C_TIMEOUT_MS) != I2C_I2C_MSTR_NO_ERROR ) { return -1; }

    }

    // Stop

    if ( I2C_I2CMasterSendStop(I2C_TIMEOUT_MS) != I2C_I2C_MSTR_NO_ERROR ) { return -1; }

    return bufferSize;

}

This is a basic question...  I have a custom service with multiple custom characteristics.  The characteristics have various read/write permissions, some notify some do not.  I am having trouble with one characteristic.  It is read-only and it notifies.  I am using a phone app (LightBlue) as a client.

The idea is to have the BLE peripheral provide a status to the client via this characteristic, the app can read the characteristic and receives updates via notification.

In the GeneralEventHandler I update this characteristic on the "stack on" event.  When I connect the update is not there, I see the default value of the characteristic as entered in the GUI dialog.

I does not work when set to read only, but it does work when set to read/write.  What am I missing?

Thanks

Rich

Hi all,

I want to use SL3S4011 tag with i2c interrupt. It pull low to scl signal for a 200uS(Attached) when tag is readed from rf. I read the datasheet but I couldn't find a solution how I can detect isr signal.

I tried to show i2c pins and connect them an isr but i2c master mode don't support this mode.

Do you have any solution ?

Thank you

Hi ,currently i am using PWM in my project to generate a square wave  continuosly  and  it's working fine  as per below

//ADC Initialization

    ADC_Start();

    ADC_StartConvert();

    //PWM Initialization

     PWM_Start();

    UART_Start();

    /* Start CYBLE component and register generic event handler */

    CyBle_Start(AppCallBack);

    /* Register service specific callback functions */

    CyBle_BasRegisterAttrCallback(BasCallBack);

    CyBle_HtsRegisterAttrCallback(HtsCallBack);

    WDT_Start();

    calculate_Data();

    /***************************************************************************

    * Main polling loop

    ***************************************************************************/

     char temp_buf[30];

    while(1)

    {

        #if 1

         memset(temp_buf,0,sizeof(temp_buf));

         calculate_Data();

        sprintf(temp_buf,"hot_temp :%.2fV\r\n",value);

        UART_UartPutString(temp_buf);

         memset(temp_buf,0,sizeof(temp_buf));

         sprintf(temp_buf,"voltage :%.2fV \r\n",value);

        UART_UartPutString(temp_buf);

         memset(temp_buf,0,sizeof(temp_buf));

         sprintf(temp_buf,"current :%.2fV \r\n",value);

         UART_UartPutString(temp_buf);

         memset(temp_buf,0,sizeof(temp_buf));

         sprintf(temp_buf,"pcb_Temperature_value :%.2fV \r\n",value);

         UART_UartPutString(temp_buf);

         CyDelay(5000);

        #endif

    }

but if  i am using  CyBle_ProcessEvents();  then PWM  stop's and  i am not getting any waveform  as  per the code shown

*********************PWM NOT working code

   ADC_Start();

    ADC_StartConvert();

    //PWM Initialization

     PWM_Start();

    UART_Start();

while(1)

    { 

        /* CyBle_ProcessEvents() allows BLE stack to process pending events */

        CyBle_ProcessEvents();

       //  PWM_Start();

        /* To achieve low power in the device */

        LowPowerImplementation();

        /***********************************************************************

        * Wait for connection established with Central device

        ***********************************************************************/

        if(CyBle_GetState() == CYBLE_STATE_CONNECTED)

        {

            /*******************************************************************

            *  Periodically measure a battery level and temperature and send

            *  results to the Client

            *******************************************************************/      

            if(mainTimer != 0u)

            {

                mainTimer = 0u;

                MeasureBattery();

                CyBle_ProcessEvents();

                if(temperatureMeasure == ENABLED)

                {

                   MeasureTemperature();

                   CyBle_ProcessEvents();

                }

            }

        }

} 

}

Hi, I'm quite new to this but i have this project going on and hopefully you are able to point me i the right direction. The project itself is to replace a USB module delivered from cypress, and replace it with a bluetooth connection. Transmitter and receiver. One of the measurement cards that is located inside our computer should be moved out to a wireless connection box. This connection box should be communicating wireless to our computer and I need some help to get the suitable hardware.. I'm not quite sure if I've explained it properly enough, but I really hope you guys are able to help me out.

Thanks.