main.c File Reference

#include "config.h"
#include "ADC_task.h"
#include "Timer0_PWM.h"
#include "ATA6824_defs.h"
#include "Hall_sensors.h"
#include "an_compare.h"

Include dependency graph for main.c:

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Enumerations
enum	Motor_ctrl_t { MOTOR_STATUS_STOPPED, MOTOR_STATUS_CW, MOTOR_STATUS_CCW }
Functions
void	display_defaults (void)
	display_defaults signals to the user that diagnostics have detected a fault. It displays it on corresponding LED. Two faults are software latched. When those faults have been latched, the corresponding LEDs is/are set ON. Those are cleared when faults are unlatched The DG3 over-temperature doesn't need to be latched. As long as it's present the corresponding LED is toogled, then cleared if it's not present.
void	main (void)

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Function Documentation

void display_defaults

(

void

)

display_defaults signals to the user that diagnostics have detected a fault. It displays it on corresponding LED. Two faults are software latched. When those faults have been latched, the corresponding LEDs is/are set ON. Those are cleared when faults are unlatched The DG3 over-temperature doesn't need to be latched. As long as it's present the corresponding LED is toogled, then cleared if it's not present.

Definition at line 164 of file main.c.

References ATA6824_diag_mgt, ATA6824_diag_mgt_t::dg1, ATA6824_diag_mgt_t::dg2, ATA6824_diag_mgt_t::dg3, NO_FAILURE, SoftTimer_t::ovf, and time_count_1s.

Referenced by main().

{
  // Display short-cicuit detected (latched DG1 signal)
  if (ATA6824_diag_mgt.dg1 != NO_FAILURE)    SET_DG1_LED();
  else                                       RESET_DG1_LED();
  
  // Display pump charge failure, undervoltage or overvoltage detected (latched DG2 signal)
  if (ATA6824_diag_mgt.dg2 != NO_FAILURE)    SET_DG2_LED();
  else                                       RESET_DG2_LED();
  
  // Toggle DG3_LED in over-temperature conditions
  if (time_count_1s.ovf == true)
  {
    if (ATA6824_diag_mgt.dg3 != NO_FAILURE)
      TOGGLE_DG3_LED();         
    else
      RESET_DG3_LED();
    time_count_1s.ovf = false;  // Clear 1s overflow flag
  }
}

void main

(

void

)

Definition at line 79 of file main.c.

References adc_get_speed(), ADC_Init(), ADC_task(), AN_compare_init(), clear_faults(), Diag_inputs_ISR_init(), display_defaults(), Hall_sensors_ISR_init(), manage_time_base(), MOTOR_STATUS_CCW, MOTOR_STATUS_CW, MOTOR_STATUS_STOPPED, refresh_ATA6824_watchdog(), TIMER0_SET_OC0B_PWM, and Timer0_start().

{     
  Motor_ctrl_t motor_status = MOTOR_STATUS_STOPPED;
  
  CLKPR   = 0x80;
  CLKPR   = 0x00;                 // No system clock prescaler
  CONFIG_IO_PORTS();              // Configure I/O ports

  ADC_Init();                     // initialize ADC
  Timer0_start();                 // Starts Timer 0 for a 31250Hz PWM and
                                  // time management.
  Hall_sensors_ISR_init();        // Configures Pin change interrupts (PCINT0)
  Diag_inputs_ISR_init();         // Configures DG1/2/3 pin change interrupts (PCINT1)
  AN_compare_init();              // Configures over-current detection through 
                                  // analog comparator
  
  SET_WD_TRIG();                  // 1st watchdog refresh
  
  __enable_interrupt();           // enable interrupts
  
  while(1)                        // End-less loop
  {
    ADC_task();                   // Manage ADC acquisitions
    manage_time_base();           // Manage time base
    refresh_ATA6824_watchdog();   // Refresh ATA6824 Watchdog

    /* Motor management */
    switch(motor_status)
    {
      //--------------------------------------------------------------------
      case MOTOR_STATUS_STOPPED:                        // Motor is stopped
        if (GET_SWITCH_CW())
        {
          SET_MOTOR_DIR();                              // Set motor direction
          TIMER0_SET_OC0B_PWM((U8)((adc_get_speed()>>2)));  // Update PWM ratio
          motor_status = MOTOR_STATUS_CW;
        }
        else if (GET_SWITCH_CCW())
        {
          RESET_MOTOR_DIR();                            // Reset motor direction
          TIMER0_SET_OC0B_PWM((U8)((adc_get_speed()>>2)));  // Update PWM ratio
          motor_status = MOTOR_STATUS_CCW;
        }
        else
          TIMER0_SET_OC0B_PWM(0x00);                    // Set PWM ratio to zero
        break;
        
      //--------------------------------------------------------------------
      case MOTOR_STATUS_CW:                             // Motor runs Clockwise
      case MOTOR_STATUS_CCW:                            // Motor runs counter clockwise
        
        if (!GET_SWITCH_CW() && !GET_SWITCH_CCW())      // Stop command from switch
        {
          TIMER0_SET_OC0B_PWM(0x00);                    // Set PWM ratio to zero
          motor_status = MOTOR_STATUS_STOPPED;          // Update motor status
        }
        else
          TIMER0_SET_OC0B_PWM((U8)((adc_get_speed()>>2)));  // Update PWM ratio
        break;
        
      //--------------------------------------------------------------------
      default:
        motor_status = MOTOR_STATUS_STOPPED;
        TIMER0_SET_OC0B_PWM(0x00);                    // Set PWM ratio to zero
        break;
    }

    // Default display on LEDs
    display_defaults();

    // Clear faults when Release push-button is pushed and faults no more remain
    if (GET_RELEASE_BP())         
      clear_faults();       // Clear not remaining faults (latched by software)
  };
}

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