[grantm009]

OK then Michael

now we are starting to get somewhere

I think the text is on the screen now, it is not readable but it is there, Im sure.

I set the res to 96.48. The background image is fine but the text is displaying about 1 quarter down the screen with some kind of sync issue. It is on a lean, and repeated across the screen.

I think at this stage I’ll order the new chip and start there. Thanks very much for the help.

regards
Grant

[grantm009]

Hi

Have you been able to overlay anything at all onto an input signal?
The only thing I have ever had out is the video signal from the camera. I’ve not been able to get text of any kind
to display.

you are in a PAL country,
right: Im in australia.

Does your Arduino have an ATmega328 chip?
The chip is a ATMega168. So I understand I can’t do the video at this resolutions.

What options do I have ?
1) can i plug an ATMega328 into the my board ?
2) can I run it at a lower resolution, and how would i do that ?

regards
Grant

[grantm009]

Well that did not change anything. I took all references to the serial out. below is the new code.
One thing I did notice is that when i put the output select on sync only, the video camera output disappears (as expected) but the screen does remain blank. My monitor, if there is no input signal, puts a logo in the top left corner. Because there is no logo displaying, this says to me that the monitor is receiving something from the board.

I was wondering about the W & H variables and if they need to be adjusted for my wide format screen.
I also tried changing (blindly) the tv.fill(0) value to other values in the 0-255 range.

Otherwise, being a mere hobbyist – i don’t know where to look next.
Are there maybe any “test” points that I could measure with a multimeter on the board ?

I remember now that I only put the serial print lines in because it was not working.

regards
Grant

#include
#include
#define W 128
#define H 96
TVout tv;
unsigned char x,y;
char s[32];

void setup() {
tv.begin(PAL, W, H);
initOverlay();
initInputProcessing();
tv.select_font(font4x6);
tv.fill(0);
}

void initOverlay() {
TCCR1A = 0;
// Enable timer1. ICES0 is set to 0 for falling edge detection on input capture pin.
TCCR1B = _BV(CS10);
// Enable input capture interrupt
TIMSK1 |= _BV(ICIE1);
// Enable external interrupt INT0 on pin 2 with falling edge.
EIMSK = _BV(INT0);
EICRA = _BV(ISC01);//Serial.println(“done 4”);
}

void initInputProcessing() {
// Analog Comparator setup
ADCSRA &= ~_BV(ADEN); // disable ADC
ADCSRB |= _BV(ACME); // enable ADC multiplexer
ADMUX &= ~_BV(MUX0); // select A2 for use as AIN1 (negative voltage of comparator)
ADMUX |= _BV(MUX1);
ADMUX &= ~_BV(MUX2);
ACSR &= ~_BV(ACIE); // disable analog comparator interrupts
ACSR &= ~_BV(ACIC); // disable analog comparator input capture
}

ISR(INT0_vect) {
display.scanLine = 0;
}

void loop() {
tv.print(0,90,millis());
tv.print(40,90,tv.millis());
tv.print(60,90,display.frames);
delay(500);
}

[grantm009]

Hi

So you are saying that the serial output is screwing up the program.

Well i’ll be……

debug stuffed my program 🙂

I’ll have a look at it straight away

thanks for the input.

[grantm009]

Hi

I have a similar problem – i.e. the program freezes when it does the TIMSK1 |= _BV(ICIE1); line.
However I am just running the demo code for the board – no ethernet or anything else.
my board is an arduino duemilanove.
I reduced the code and objectives from the demo quite a bit as it was too big for my board. In the debug outputs I always get a “done 1” but never a “done 2”.
Again, same as Cadbury, if i comment out the TIMSK1 |= _BV(ICIE1); line the sketch runs but no output.

Originally I had the jumpers set to SyncSelect=V-input and outputSelect=overlay. In that setting I get video on the screen but no overlay 🙁 . I changed it to output-select=sync-only as I understand that should block the video and just give me my overlay text. But, sigh, I get nothing on the screen 😛 . So I thought about trying to use the TVout lib sync D9 with output select sync only but …. still nothing. :'(

The code is below.

any help would be appreciated.
regards
Grant

#include
#include
#define W 128
#define H 96

TVout tv;
unsigned char x,y;
char s[32];

void setup() {
Serial.begin(9600);
Serial.println(“setting up tv.”);
tv.begin(PAL, W, H);
Serial.println(“tv begin. done”);
initOverlay();
Serial.println(“initoverlay. done”);
initInputProcessing();
Serial.println(“initInputProcessing done”);

tv.select_font(font4x6);
Serial.println(“setting up tv.”);
tv.fill(0);

Serial.println(“done”);
}

void initOverlay() {
TCCR1A = 0;
// Enable timer1. ICES0 is set to 0 for falling edge detection on input capture pin.
TCCR1B = _BV(CS10);
Serial.println(“done 1”);

// Enable input capture interrupt
TIMSK1 |= _BV(ICIE1);
Serial.println(“done 2”);

// Enable external interrupt INT0 on pin 2 with falling edge.
EIMSK = _BV(INT0);
Serial.println(“done 3”);
EICRA = _BV(ISC01);
Serial.println(“done 4”);
}

void initInputProcessing() {
// Analog Comparator setup
ADCSRA &= ~_BV(ADEN); // disable ADC
ADCSRB |= _BV(ACME); // enable ADC multiplexer
ADMUX &= ~_BV(MUX0); // select A2 for use as AIN1 (negative voltage of comparator)
ADMUX |= _BV(MUX1);
ADMUX &= ~_BV(MUX2);
ACSR &= ~_BV(ACIE); // disable analog comparator interrupts
ACSR &= ~_BV(ACIC); // disable analog comparator input capture
}

ISR(INT0_vect) {
display.scanLine = 0;
}

void loop() {
tv.print(0,90,millis());
tv.print(40,90,tv.millis());
tv.print(60,90,display.frames);
//Serial.println(“loop start”);
// tv.capture();
// tv.resume();
// tv.delay_frame(5);
// Serial.println(“loop done”);
}

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