Library description

This library contains functions required to setup OOK communication.

Key functions

uint8_t ooktx_communicationInit(uint8_t calibration, uint8_t configuration, uint16_t configurationSettings) - Initializes communication with the click

uint8_t ooktx_communicationTransmit(uint8_t transmitData) - Transmits data via OOK

uint8_t ooktx_communicationStop() - Sends a stop condition

The application is composed of three sections :

• System Initialization - Initializes output pins.
• Application Initialization - Initializes click driver.
• Application Task - Code snippet - Sends a data byte that is incremented after every transmission. Data byte is prefixed by preambule bytes and start packet bytes that help the receiver to differentiate received data from glitches.

void applicationTask()
{
    uint8_t i;
    uint8_t j;

    i = 1;
    while(1)
    {
        //Signals the device to start ook communication
        ooktx_communicationInit(_OOKTX_CALIBRATION_ENABLE, 
        _OOKTX_CONFIGURATION_ENABLE, _OOKTX_CFG_DEFAULT);

        //Sends a sufficiently long preambule - 8 bytes of "01010101" sequence
        for (j = 0; j < 8; j++)
        {
            ooktx_communicationTransmit(_OOKTX_PREAMBULE);
        }

        /*
         * Sends 2 "Start packet" bytes - To help the receiver to differentiate
         * actual data packages from signal glitches. These bytes can be any
         * random number, as long as receiver knows what to expect.
         */
        ooktx_communicationTransmit(0xCE);
        ooktx_communicationTransmit(0x35);

        //Data byte to be transmitted
        ooktx_communicationTransmit(i);

        //Stops ook communication
        ooktx_communicationStop();
        delay_ms(1000);
        i ++;
    }

}