File content as of revision 8:208d965a3bd2:

#ifndef PROJECT_DEFINES_H_
#define PROJECT_DEFINES_H_

/* File inclusion */

/* Pin definition */

// Switches and buttons
#define ENTER_SW_PIN                            PA_15
#define LIMIT_SW_01_PIN                         PB_7
#define GAS_INPUT_SW_PIN                        PC_13

// Rotary encoder
#define ENCODER_A_SIGNAL                        PA_13
#define ENCODER_B_SIGNAL                        PA_14
 
//Nextion display
#define NEXTION_DISPLAY_TX_PIN                  PC_10
#define NEXTION_DISPLAY_RX_PIN                  PC_11

// Pressure sensors
#define PRESSURE_SENSOR_01_SCL_PIN              PB_10
#define PRESSURE_SENSOR_01_SDA_PIN              PB_11
#define PRESSURE_SENSOR_02_SCL_PIN              PB_8
#define PRESSURE_SENSOR_02_SDA_PIN              PB_9

//Stepper motor
#define STEPPER_PULSE_PIN                       PC_8
#define STEPPER_ENABLE_PIN                      PC_6
#define STEPPER_DIRECTION_PIN                   PC_5
#define STEPPER_PULSE_FEEDBACK_PIN              PA_12


/* Constants and macros */

/* Defines for the switches and buttons */
#define ENTER_SW                                0
#define LIMIT_SW_01                             1
#define GAS_INPUT_SW                            2

#define DEBOUNCE_PERIOD_MS                      10

/* Defines for the encoder user interface */
#define ENCODER_THRESHOLD                       8

#define PARAMETER_SELECTION_INDEX_LIMIT         3
#define VOLUME_SETPOINT_INDEX_LIMIT             11
#define RESP_FREQUENCY_INDEX_LIMIT              21
#define I_E_RATIO_INDEX_LIMIT                   3

#define PARAMETER_SELECTION_INDEX_DEFAULT       0
#define VOLUME_SETPOINT_INDEX_DEFAULT           5
#define RESP_FREQUENCY_INDEX_DEFAULT            10
#define I_E_RATIO_INDEX_DEFAULT                 0

#define ENCODER_READ_PERIOD_MS                  50

/* Defines for the Nextion user interface */

#define NEXTION_DISPLAY_BAUD_RATE               115200

#define BLACK                                   0
#define BLUE                                    31
#define BROWN                                   48192
#define GREEN                                   2016
#define YELLOW                                  65504
#define RED                                     63488
#define GRAY                                    33840
#define WHITE                                   65535

#define NORMAL_COLOR                            WHITE
#define SELECT_COLOR                            BLUE
#define ADJUST_COLOR                            GREEN

#define VOLUME_SETPOINT_VALUE_DEFAULT           500
#define RESP_FREQUENCY_VALUE_DEFAULT            20
#define INSPIRATION_TIME_VALUE_DEFAULT          1.0
#define EXPIRATION_TIME_VALUE_DEFAULT           2.0

#define VOLUME_SETPOINT_MINIMUM_VALUE           250
#define VOLUME_SETPOINT_STEP                    50

#define AIR_INPUT                               0
#define OXYGEN_INPUT                            1

#define MAIN_SCREEN_DEFAULT_STATE               Main_Screen_Cursor_Disable

#define VOLUME_WAVEFORM_X0                      200
#define VOLUME_WAVEFORM_Y0                      3
#define VOLUME_WAVEFORM_WIDTH                   400
#define VOLUME_WAVEFORM_HEIGHT                  157

#define FLOW_WAVEFORM_X0                        200
#define FLOW_WAVEFORM_Y0                        162
#define FLOW_WAVEFORM_WIDTH                     400
#define FLOW_WAVEFORM_HEIGHT                    157

#define PRESSURE_WAVEFORM_X0                    200
#define PRESSURE_WAVEFORM_Y0                    321
#define PRESSURE_WAVEFORM_WIDTH                 400
#define PRESSURE_WAVEFORM_HEIGHT                157

#define SENSOR_WAVEFORM_PLOT_PERIOD_MS          25
#define SENSOR_DISPLAY_PERIOD_MS                100

/* Defines for the pressure sensors */
#define PRESSURE_SENSOR_I2C_CLK_HZ                      200000
#define PRESSURE_SENSOR_01_SLAVE_ADDRESS                0x28
#define PRESSURE_SENSOR_02_SLAVE_ADDRESS                0x28
#define PRESSURE_SENSOR_01_SWA                          (PRESSURE_SENSOR_01_SLAVE_ADDRESS << 1)
#define PRESSURE_SENSOR_02_SWA                          (PRESSURE_SENSOR_02_SLAVE_ADDRESS << 1)
#define PRESSURE_SENSOR_01_SRA                          (PRESSURE_SENSOR_01_SWA  | 1)
#define PRESSURE_SENSOR_02_SRA                          (PRESSURE_SENSOR_02_SWA  | 1)

#define VOLUME_DISPLAY_THRESHOLD                        0.01f
#define FLOW_DISPLAY_THRESHOLD                          0.01f
#define PRESSURE_DISPLAY_THRESHOLD                      0.01f

#define PSI_TO_CMH2O_CONSTANT                           70.307
#define SPIROMETER_SENSOR_CONSTANT                      1.0f

#define PRESSURE_SENSOR_READ_PERIOD_MS                  1

/* Defines for the stepper motor control */ 
#define TO_HOME                                         0
#define TO_AIRBAG                                       1
#define STEPPER_ENABLED                                 0
#define STEPPER_DISABLED                                1                                 
                
#define STEPPER_DRIVER_PULSE_MIN_PERIOD_US              100     
#define STEPPER_DRIVER_PULSE_HOME_PERIOD_US             1000  
#define STEPPER_DRIVER_DEFAULT_PULSE_PERIOD_US          1000  
 
#define STEPPER_DRIVER_MAX_PULSES                       6000 // Limite de pasos cuando no encuentra el sensor    
#define STEPPER_DRIVER_MIN_PULSES                       (2*RAMP_STEPS + 2)
#define STEPPER_DRIVER_INSPIRATION_PULSES_DEFAULT       2000
   
#define STEPPER_DRIVER_DEFAULT_STATE                    Stepper_Driver_Home_Ramp

#define STEPPER_CALIBRATION_FREQUENCY_HZ                200

// Number of steps used for the speed ramp, can be either 50 or 100  
#define RAMP_STEPS                                      50

#if RAMP_STEPS  == 50
    #define STEPPER_START_BRAKE_FREQUENCY_HZ            300 
#elif RAMP_STEPS == 100
    #define STEPPER_START_BRAKE_FREQUENCY_HZ            500 
#else
    #error "Select a valid value for RAMP_STEPS: either 50 or 100"    
#endif

#define STEPPER_MAX_FREQUENCY_HZ                        3000

#define STEPPER_START_BRAKE_PERIOD_US                   (1000000.0/STEPPER_START_BRAKE_FREQUENCY_HZ)
#define SHORT_RAMP_STEPS                                25

#define TUNING_FACTOR                                   1.2

#endif