TinyISP Debugging

Using Arduino Microcontrollers
#1

I downloaded the last version of TinyISP and TinyDebugKnockBang. Using Arduino 1.6.7, I uploaded TinyISP on UNO with this build options:

#define PROGRAMMER_SPI_CLOCK  SLOW

#define RELAY_KNOCK_BANG_ENABLED  1
#define RELAY_KNOCK_BANG_USE_ALTERNATE_PIN  1
#define RELAY_SERIAL_ENABLED   0 
#define TUNING_SIGNAL_ENABLED  0

#define TICK_TOCK_ENABLED  0

and then uploaded a simple sketch on Attiny84 @ 8MHz:

#include <TinyDebugKnockBang.h>

int led = 10; // pin for LED

void setup( void )
{
  pinMode(led, OUTPUT);  
  Debug.begin( 250000 );
}

void loop( void )
{
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(1000); 

  Debug.println( "testing..." );
}

LED is blinking in my Attiny board. I set baud rate to 19200 on serial monitor. When I press “!”, I see the message “— Monitor starting —” but there’s no output from Attiny. What’s wrong?

#2 
#define RELAY_KNOCK_BANG_USE_ALTERNATE_PIN  1

Do you know which is the alternate pin?

#3

No. I don't have any idea what alternate pin means or which pin it is.

#4

What does searching the source code tell you?

What does putting that macro name into Google tell you?

#5

I searched forum and found your answer here: Tiny Tuner 2 - nothing showing up on Serial Monitor except "Monitor starting" - Microcontrollers - Arduino Forum

"#define RELAY_KNOCK_BANG_USE_ALTERNATE_PIN 1" moves Knock Bang receive to Digital Pin 7 (instead of MISO). I suggest disabling that (you will have to re-upload TinyISP)...

So I modified _TinyISP_BuildOptions.h :

#ifndef _TinyISP_BuildOptions_h
#define _TinyISP_BuildOptions_h

#define PROGRAMMER_SPI_CLOCK  SLOW

#define RELAY_KNOCK_BANG_ENABLED  1
#define RELAY_KNOCK_BANG_USE_ALTERNATE_PIN  0
#define RELAY_SERIAL_ENABLED   0 
#define TUNING_SIGNAL_ENABLED  0

#define TICK_TOCK_ENABLED  0

I uploaded tinyISP and the script again and it works very well! Thanks a lot!!!

I have two suggestions. I'd be great if you could explain the options of _TinyISP_BuildOptions in a few lines in source code. Also "RELAY_KNOCK_BANG_USE_ALTERNATE_PIN" is set to 1 by default. It would be better be set to zero.

#6

samakar:
I suggest disabling that (you will have to re-upload TinyISP)...

I suggest you create a pull request.

I have two suggestions. I'd be great if you could explain the options of _TinyISP_BuildOptions in a few lines in source code. Also "RELAY_KNOCK_BANG_USE_ALTERNATE_PIN" is set to 1 by default. It would be better be set to zero.

I have one suggestion: create a pull request.

I uploaded tinyISP and the script again and it works very well! Thanks a lot!!!

Excellent. You are welcome.

#7