| 1,31 → 1,26 |
|---|
| // ************************************************************* |
| // ** Spektrum Diversity - use up to 4 satellite receivers ** |
| // ************************************************************* |
| // ** Target: An Atmel ATtiny2313 (RC-Oscillator @ 8 MHz) ** |
| // ** controls a 74HC151 Multiplexer ** |
| // ************************************************************* |
| // ** It monitors the data from 4 satellite receivers and ** |
| // ** connects a valid one to the output via the multiplexer ** |
| // ************************************************************* |
| // ** LED-Modes during startup (in chronological order) ** |
| // ** ************************ ** |
| // ** LED fast blink: Waiting for first datapulse ** |
| // ** LED slow blink: Waiting 3 seconds while counting sat's ** |
| // ** LED flashes: Indicates the number of active sat's ** |
| // ** ** |
| // ** LED-Modes during operation ** |
| // ** ************************** ** |
| // ** LED OFF: Everything is fine ** |
| // ** LED ON: FAILURE - The first selected sat had lost sync ** |
| // ** ** |
| // ** LED-Modes during Self-Test ** |
| // ** ************************** ** |
| // ** LED flashes at 1 Hz: Everything is fine ** |
| // ** LED flashes some times: FAILURE ** |
| // ************************************************************* |
| // ** (c) 2010-0xFFFF Stefan Pendsa ** |
| // ** License: don't know - use it and have fun ** |
| // ************************************************************* |
| // ************************************************************ |
| // ** Spektrum Diversity - use up to 4 satellite receivers ** |
| // ************************************************************ |
| // ** Target: An Atmel ATtiny2313 (RC-Oscillator @ 8 MHz) ** |
| // ** controls a 74HC151 Multiplexer ** |
| // ************************************************************ |
| // ** It monitors the data from 4 satellite receivers and ** |
| // ** connects a valid one to the output via the multiplexer ** |
| // ************************************************************ |
| // ** LED-Modes during startup (in chronological order) ** |
| // ** ************************ ** |
| // ** LED fast blink: Waiting for first datapulse ** |
| // ** LED slow blink: Waiting 3 seconds while counting sat's ** |
| // ** LED flashes: Indicates the number of active sat's ** |
| // ** ** |
| // ** LED-Modes during operation ** |
| // ** ************************** ** |
| // ** LED OFF: Everything is fine ** |
| // ** LED ON: FAILURE - The first selected sat had lost sync ** |
| // ************************************************************ |
| // ** (c) 2010-0xFFFF Stefan Pendsa ** |
| // ** License: don't know - use it and have fun ** |
| // ************************************************************ |
| |
| #include <avr/io.h> |
| #include <avr/interrupt.h> |
| 37,21 → 32,11 |
|---|
| volatile unsigned int TimerEvent; |
| |
| |
| |
| ISR(TIMER1_OVF_vect) // Triggered every 8,192 msec |
| { |
| TimerEvent++; |
| } |
| |
| |
| |
| void SelectSat(unsigned char sat) |
| { |
| PORTD = (PORTD & 0b00000001) | (sat<<3); // Select the Input for 74HC151 |
| } |
| |
| |
| |
| void ResetTimer(void) |
| { |
| TCNT1H = 0; |
| 60,7 → 45,6 |
|---|
| } |
| |
| |
| |
| void Binding(void) // Binding sequence for DX7 |
| { |
| unsigned char i = 0; |
| 81,63 → 65,42 |
|---|
| } |
| |
| |
| |
| void Testing(void) // Self Test |
| { |
| unsigned char i = 0; |
| unsigned char error = 0; |
| unsigned char i = 0; |
| |
| DDRB = 0b11110000; // Port B Output for satellites, Input for feedback |
| DDRB = 0b11110000; // PORT B OUTPUT FOR SATELLITES, INPUT FOR FEEDBACK |
| PORTB = 0b00000000; |
| |
| PORTB = 0b01010000; // Test Pattern |
| SelectSat(0); |
| if (!(PINB & (1<<PB3))) error++; |
| SelectSat(1); |
| if (PINB & (1<<PB3)) error++; |
| SelectSat(2); |
| if (!(PINB & (1<<PB3))) error++; |
| SelectSat(3); |
| if (PINB & (1<<PB3)) error++; |
| for(i=0;i<4;i++) // Test muxxing of High+Low on every Sat-Input |
| { |
| SelectSat(i); |
| PORTB |= 1 << (i+4); |
| if (!(PINB & (1<<PB3))) error++; |
| PORTB &= ~(1 << (i+4)); |
| if (PINB & (1<<PB3)) error++; |
| } |
| |
| PORTB = 0b10100000; // Another (inverted) Test Pattern |
| SelectSat(0); |
| if (PINB & (1<<PB3)) error++; |
| SelectSat(1); |
| if (!(PINB & (1<<PB3))) error++; |
| SelectSat(2); |
| if (PINB & (1<<PB3)) error++; |
| SelectSat(3); |
| if (!(PINB & (1<<PB3))) error++; |
| |
| DDRB = 0b00000000; // Port B Input again |
| |
| while(1) // Never return |
| { |
| if (error == 0) // When no error occured -> LED flashes at 1 Hz |
| if (error == 0) // When no error occured, flash around |
| { |
| LED_ON; |
| _delay_ms(100); |
| LED_OFF; |
| _delay_ms(900); |
| _delay_ms(100); |
| } |
| else |
| { |
| for (i=0;i<error;i++) // When error occured -> Flash once for every error |
| { |
| LED_ON; |
| _delay_ms(100); |
| LED_OFF; |
| _delay_ms(400); |
| } |
| _delay_ms(1000); |
| } |
| |
| } |
| } |
| |
| |
| ISR(TIMER1_OVF_vect) // Triggered every 8,192 msec |
| { |
| TimerEvent++; |
| } |
| |
| |
| |
| int main(void) |
| { |
| unsigned char i = 0; |
| 145,15 → 108,15 |
|---|
| unsigned char active[4]; |
| unsigned char sat = 4; |
| |
| DDRB = 0b00000000; // Port B Input for satellites and feedback |
| DDRD = 0b0011001; // Port D Output for MUX and LED, Input for Switch & Test |
| PORTB = 0b11110000; // Port B Pullup's for (unused) satellites |
| PORTD = 0b1100001; // Port D Pullup's for Switch & Test, LED on |
| DDRB = 0b00000000; // PORT B INPUT FOR SATELLITES AND FEEDBACK |
| DDRD = 0b0011001; // PORT D OUTPUT FOR MUX AND LED, INPUT FOR SWITCH & TEST |
| PORTB = 0b11110000; // PORT B PULLUP's FOR (unused) SATELLITES |
| PORTD = 0b1100001; // PORT D PULLUP's FOR SWITCH & TEST |
| |
| for (i=0;i<4;i++) active[i] = 0; // Reset active-array |
| |
| if (!(PIND & (1<<PD6))) Binding(); // Initiate Binding when Bind-Button is pressed |
| if (!(PIND & (1<<PD5))) Testing(); // Initiate Self-Test when Test-Pad is low |
| if (!(PIND & (1<<PD6))) Binding(); // Initiate Binding when Bind-Button is pressed |
| |
| TCCR1B = ( 1 << CS10 ); // Timer1 Prescaler = 1 -> 8,192 msec |
| TIMSK = ( 1 << TOIE1 ); // Timer1 Overflow Interrupt Enable |
| 169,10 → 132,11 |
|---|
| TimerEvent = 0; |
| } |
| } |
| |
| LED_OFF; |
| |
| ResetTimer(); |
| while(1) // Check active satellites for 5 seconds |
| while(1) // Check active satellites for 3 seconds |
| { |
| if (TimerEvent == 20) LED_ON; // Blink (slower) while waiting... |
| if (TimerEvent == 40) |
| 196,7 → 160,7 |
|---|
| } |
| } |
| |
| if (j == 16) break; // 16 * 40 * 8ms = ~5sec |
| if (j == 9) break; // 9 * 40 * 8ms = ~3sec |
| } |
| |
| LED_OFF; |
| 209,7 → 173,7 |
|---|
| LED_ON; |
| _delay_ms(100); |
| LED_OFF; |
| _delay_ms(400); |
| _delay_ms(200); |
| } |
| } |
| |
| 218,15 → 182,16 |
|---|
| |
| while(1) // Main-Loop |
| { |
| for (i=0;i<4;i++) active[i] = 0; // Reset active-array |
| ResetTimer(); |
| |
| ResetTimer(); |
| while((PINB & 0b11110000) == 0b11110000) // Wait for first signal (SYNC to frame) |
| { |
| if (TimerEvent > 3) break; // (max. 3*8=24ms) |
| } |
| |
| for (i=0;i<4;i++) active[i] = 0; // Reset active-array |
| ResetTimer(); |
| |
| while(TimerEvent < 1) // Check active satellites (for 1*8=8ms) |
| { |
| |
| 239,9 → 204,10 |
|---|
| } |
| } |
| |
| |
| if (active[sat] == 0) // Detect fail on active satellite |
| { |
| LED_ON; // Failure-LED ON |
| LED_ON; // Failure-LED ON (never goes off again) |
| for (i=0;i<4;i++) // Select lowest active satellite |
| { |
| if (active[i] == 1) |
| 253,7 → 219,8 |
|---|
| } |
| } |
| |
| if (!(PIND & (1<<PD6))) LED_OFF; // Reset Failure-LED when Bind-Button is pressed |
| |
| } |
| |
| } |
| |
