1,38 → 1,39 |
// ************************************************************* |
// ** 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 v1.0 - 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 after Self-Test ** |
// ** ************************* ** |
// ** LED flashes at 1 Hz: Everything is fine ** |
// ** LED flashes some times: Times flashed -> damaged Channel# ** |
// ** LED off: check voltage(regulator) or firmware ** |
// *************************************************************** |
// ** (c) 2010-0xFFFF Stefan Pendsa ** |
// ** License: don't know - use it and have fun ** |
// *************************************************************** |
|
#include <avr/io.h> |
#include <avr/interrupt.h> |
#include <util/delay.h> |
|
#define LED_OFF PORTD |= 1 << PORTD0 |
#define LED_ON PORTD &= ~(1 << PORTD0) |
#define LED_OFF PORTD |= 1 << PD0 |
#define LED_ON PORTD &= ~(1 << PD0) |
|
volatile unsigned int TimerEvent; |
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47,7 → 48,8 |
|
void SelectSat(unsigned char sat) |
{ |
PORTD = (PORTD & 0b00000001) | (sat<<3); // Select the Input for 74HC151 |
PORTD = (PORTD & 0b1100111) | (sat << 3); // Select the input for 74HC151 |
_delay_us(10); // Wait for stable state |
} |
|
|
66,7 → 68,7 |
unsigned char i = 0; |
|
DDRB = 0b11110000; // Sat-Pins to output |
_delay_ms(80); // Let them boot up |
_delay_ms(80); // Let them time to boot up |
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for (i=0;i<3;i++) // send three negative 100µs pulses to all sat's |
{ |
91,23 → 93,23 |
|
PORTB = 0b01010000; // Test Pattern |
SelectSat(0); |
if (!(PINB & (1<<PB3))) error++; |
if (!(PINB & (1<<PB3))) error = 1; |
SelectSat(1); |
if (PINB & (1<<PB3)) error++; |
if (PINB & (1<<PB3)) error = 2; |
SelectSat(2); |
if (!(PINB & (1<<PB3))) error++; |
if (!(PINB & (1<<PB3))) error = 3; |
SelectSat(3); |
if (PINB & (1<<PB3)) error++; |
if (PINB & (1<<PB3)) error = 4; |
|
PORTB = 0b10100000; // Another (inverted) Test Pattern |
SelectSat(0); |
if (PINB & (1<<PB3)) error++; |
if (PINB & (1<<PB3)) error = 1; |
SelectSat(1); |
if (!(PINB & (1<<PB3))) error++; |
if (!(PINB & (1<<PB3))) error = 2; |
SelectSat(2); |
if (PINB & (1<<PB3)) error++; |
if (PINB & (1<<PB3)) error = 3; |
SelectSat(3); |
if (!(PINB & (1<<PB3))) error++; |
if (!(PINB & (1<<PB3))) error = 4; |
|
DDRB = 0b00000000; // Port B Input again |
|
122,7 → 124,7 |
} |
else |
{ |
for (i=0;i<error;i++) // When error occured -> Flash once for every error |
for (i=0;i<error;i++) // When error occured -> Flash-Out the Errorcode |
{ |
LED_ON; |
_delay_ms(100); |
148,7 → 150,7 |
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 |
PORTD = 0b1100001; // Port D Pullup's for Switch & Test, LED off |
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for (i=0;i<4;i++) active[i] = 0; // Reset active-array |
|
155,6 → 157,8 |
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 |
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_delay_ms(100); |
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TCCR1B = ( 1 << CS10 ); // Timer1 Prescaler = 1 -> 8,192 msec |
TIMSK = ( 1 << TOIE1 ); // Timer1 Overflow Interrupt Enable |
sei(); // Global Interrupts enable |