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#include <avr/boot.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/wdt.h>
#include <util/delay.h>
#include "timer0.h"
#include "timer2.h"
#include "uart0.h"
#include "output.h"
#include "attitude.h"
#include "commands.h"
#include "flight.h"
#include "rc.h"
#include "analog.h"
#include "configuration.h"
#include "controlMixer.h"
#include "eeprom.h"
#include "printf_P.h"
uint8_t resetFlag = 0;
void reset(void) {
resetFlag = 1;
wdt_enable(WDTO_15MS);
while (1)
;
}
int16_t main(void) {
uint16_t timer = 0;
#ifdef DO_PROFILE
static uint8_t profileTimer;
#endif
// disable interrupts global
cli();
// wdt_enable(WDTO_2000MS);
wdt_disable();
// initalize modules
output_init();
timer0_init();
timer2_init();
usart0_init();
RC_Init();
analog_init();
// Parameter Set handling
IMUConfig_readOrDefault();
channelMap_readOrDefault();
rcTrim_readOrDefault();
paramSet_readOrDefault();
// enable interrupts global
sei();
controlMixer_setNeutral();
// Cal. attitude sensors and reset integrals.
attitude_setNeutral();
// This is not a busy-wait operation and should be OK.
beep(2000);
while (1) {
if (runFlightControl) { // control interval
runFlightControl = 0; // reset Flag, is enabled every 2 ms by ISR of timer0
/*
if (!resetFlag) {
wdt_reset();
}
*/
if (sensorDataReady != ALL_DATA_READY) {
// Analog data should have been ready but is not!!
debugOut.digital[0] |= DEBUG_MAINLOOP_TIMER;
} else {
debugOut.digital[0] &= ~DEBUG_MAINLOOP_TIMER;
}
PD2HIGH;
// This is probably the correct order:
// The attitude computation should not depend on anything from control (except maybe the estimation of control activity level)
// The control may depend on attitude - for example, attitude control uses pitch and roll angles, compass control uses yaw angle etc.
// Flight control uses results from both.
calculateFlightAttitude();
controlMixer_periodicTask();
commands_handleCommands();
flight_control();
PD2LOW;
// Allow Serial Data Transmit if motors must not updated or motors are not running
if (!runFlightControl || !isFlying) {
usart0_transmitTxData();
}
usart0_processRxData();
static uint8_t aboveWarningLimitVoltageSeen = 0;
if (checkDelay(timer)) {
if (UBat >= staticParams.batteryWarningVoltage) {
aboveWarningLimitVoltageSeen = 1;
} else { // If we are above USB voltage, or if we have once been above warning voltage
if (aboveWarningLimitVoltageSeen || UBat > UBAT_AT_5V) {
beepBatteryAlarm();
}
}
calculateFeaturedServoValues();
timer = setDelay(20); // every 20 ms
}
output_update();
if (runFlightControl) { // Time for the next iteration was up before the current finished. Signal error.
debugOut.digital[1] |= DEBUG_MAINLOOP_TIMER;
} else {
debugOut.digital[1] &= ~DEBUG_MAINLOOP_TIMER;
}
}
}
return (1);
}