source: firmware/FSC/src/application.h

#ifndef __APPLICATION_H
#define __APPLICATION_H
//-----------------------------------------------------------------------------

#include "typedefs.h"
//-----------------------------------------------------------------------------

#define RESISTANCE_CHANNELS 64
#define RESISTANCE_REGS 8
#define AD7719_READINGS_UNTIL_SETTLED 3 // when set to 3 --> we wait 480ms per sensor reading
#define VOLTAGE_CHANNELS 84
#define VOLTAGE_REGS 11
#define ADC_READINGS_UNTIL_SETTLED 1
#define ADC_VALUES_LEN_BYTE 168
#define AD7719_VALUES_LEN_BYTE 512

typedef struct {
    U08 ad7719_readings_since_last_muxing;
    U08 ad7719_current_channel;
    U32 ad7719_current_reading;
    U08 ad7719_enables[RESISTANCE_REGS];
    U08 ad7719_channels_ready[RESISTANCE_REGS];
    U32 ad7719_values[RESISTANCE_CHANNELS];
    U16 ad7719_values_checksum;
    
    U08 adc_readings_since_last_muxing;
    U08 adc_current_channel;
    U16 adc_current_reading;
    U08 adc_enables[VOLTAGE_REGS];
    U08 adc_channels_ready[VOLTAGE_REGS];
    U16 adc_values[VOLTAGE_CHANNELS];
    U16 adc_values_checksum;
    
    // ----- NEW --------
    bool ad7719_measured_all;
    bool adc_measured_all;

} FSCRegisterType;

typedef struct {
    U08 app_reset_source;
    U32 time_sec;
    U16 time_ms;
} VolatileRegisterType;

extern FSCRegisterType gReg;
extern volatile VolatileRegisterType gVolReg;


//-----------------------------------------------------------------------------

// in order to check the user interface on a hardware near level.
// user can issue 'heartbeat command'.
// then this üpin is toggled with the 'main-while-loop-frequency'
// --> nice check for this frequency as well
#define HEARTBEATPIN PB3

// SPI DEFINITIONS
// Port Definitions
#define SPI_PRT PORTB
#define SPI_DDR DDRB

// Bit Definitions
#define SPI_SCLK PB7
#define SPI_MOSI PB5
#define SPI_MISO PB6

#define SPI_E_CS PB4
#define SPI_AD_CS PD3
#define SPI_M_CS PD4
#define SPI_A_CS PD5

#define W5100_INPUT_CHECK_TIME 25 // defines how often the W5100 should be asked if something arrived... in ms
#define ADC_READINGS_UNTIL_MEAN 40


void app_init(void); // Initialize application
void app_set_watchdog_prescaler(tWDT_PRESCALE wdt_prescale); // Set watchdog prescale
 
// definition of some functions:
// these function are implemented in this file, this is not good coding style.
// sooner or later, they will be moved into more apropriate files.
void set_adc_enable_register();
void set_ad7719_enable_register();
U08     increase_adc (U08 channel);
U08     increase_ad7719 (U08 channel);
void check_what_measurement_was_finished() ;


bool check_if_adc_measurement_done();
bool check_if_ad7719_measurement_done();
bool check_if_measured_all();

void reset_resistance_done();
void reset_resistance_values();
void reset_voltage_done();
void reset_voltage_values();
void reset_done();

void write_status_via_eth();
U16 fletcher16( U08 const *data, U16 bytes );

#endif