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mikroSDK Library

SPI Isolator click

Rating:

5

Author: MIKROE

Last Updated: 2019-07-30

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: SPI

Downloaded: 3318 times

Not followed.

License: MIT license  

SPI Isolator click carries the ADuM4154 5kV digital isolator optimized for a serial peripheral interface (SPI), from Analog Devices. The click is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over SPI interface.

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mikroSDK Library Blog

Library Description

The library covers all the necessary functions to control SPI Isolator click board. Library performs the communication with the device via SPI protocol by writing to registers and by reading from registers.

Key functions:

  • void spiisolator_writeByte( uint8_t regAddress, uint8_t writeCmd, uint8_t writeData ) - Write the byte of data function.
  • uint16_t spiisolator_readData( uint8_t regAddress, uint8_t readCmd ) - Read 16-bit data function.
  • void spiisolator_writeBytes( uint8_t regAddress, uint8_t writeCmd, uint8_t *writeData, uint16_t nBytes ) - Sequential write function.

Examples description

The application is composed of the three sections :

  • System Initialization - Initializes GPIO, SPI, and LOG structures, set CS pin as output and start to write log.
  • Application Initialization - Initialization driver enables - SPI, set default configuration, also write log.
  • Application Task - This is an example which demonstrates the use of SPI Isolator Click board. In this example, we measured pressure and temperature data from the DPS310 sensor on Pressure 3 click board. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on usb uart changes for every 3 sec.
void applicationTask()
{
    pressure3_getCoefficients0();
    pressure3_getCoefficients1();
    spiisolator_getTemperaturePressure();

    mikrobus_logWrite( " Pressure   : ", _LOG_TEXT );
    FloatToStr( pressure, logText );
    mikrobus_logWrite( logText, _LOG_TEXT );
    mikrobus_logWrite( " mbar", _LOG_LINE );

    mikrobus_logWrite( " Temperature: ", _LOG_TEXT );
    FloatToStr( temperature, logText );
    mikrobus_logWrite( logText, _LOG_TEXT );
    mikrobus_logWrite( degCel, _LOG_LINE );
    mikrobus_logWrite( "----------------------------", _LOG_LINE );

    Delay_1sec();
    Delay_1sec();
    Delay_1sec();
}

Additional Functions :

  • void pressure3_getCoefficients0() - Get the coefficients value for calculation function.
  • void pressure3_getCoefficients1() - Get the coefficients value for calculation function.
  • void spiisolator_getTemperaturePressure() - Get the Temperature and Pressure value function.

Other mikroE Libraries used in the example:

  • SPI
  • UART
  • Conversions

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

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