Library Description

Library contains function for setting CS pin state Library contains functions for setting reference values, reading raw data, reading adc data Library contains functions for performing voltage, angle(degrees) and angle(radians) calculations.

Key functions:

• void c3dhall6_set_referenceValues( float reference_voltage, float ref_adc_ch0, float ref_adc_ch1, float ref_adc_ch2, float ref_adc_ch3 ) - sets reference values for voltage and angle calculations
• void c3dhall6_get_Volt( uint8_t channel_no, float * channel_voltage ) - reads ADC value on selected channel and converts that value to Volts or miliVolts - depending on reference voltage setting
• void c3dhall6_get_angle_deg( uint8_t die, float * angle_value ) - reads ADC values for selected die and calculates angle value in degrees

Examples description

The application is composed of three sections :

• System Initialization - Initializes SPI, LOG and CS pin
• Application Initialization - Initializes SPI driver and sets reference values
• Application Task - Executes one or more 'c3dhall6_log_xxx_task' functions

void applicationTask( )
{
    c3dhall6_log_angleDeg_task( );
    Delay_ms(100);
}

Additional Functions

• c3dhall6_log_adc_task() - performs and logs adc measurements on all channels
• c3dhall6_log_volt_task() - performs and logs voltage measurements on all channels
• c3dhall6_log_angleRad_task() - performs and logs angle measurements in radians on each die
• c3dhall6_log_angleDeg_task() - performs and logs angle measurements in degrees on each die

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 click, USB 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.