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Debugserial #1

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c00cb2b
create debugserial
25mmHg Aug 11, 2021
faf6674
debugging
25mmHg Aug 12, 2021
1bdbf70
change file structure
25mmHg Aug 15, 2021
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260 changes: 138 additions & 122 deletions SolarbirdTiny/SolarbirdTiny.ino
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
// nick@bitfasching.de, Kazoosh, 2021
// For ATtiny85 @ 8 MHz

//Do you need serial debug messages?
#define DEBUGMODE

// I/O pins //

Expand All @@ -16,6 +18,7 @@
#include "system/leds.h"
#include "system/piezo.h"
#include "system/lowpower.h"
#include "serialout.h"


// Bird voice //
Expand All @@ -28,13 +31,13 @@ Blackbird Bird;

const bool runStartupTest = false;
const bool powerDownAfterStartIfDark = false;
const unsigned long powerDownAfterStartIfDarkTimeoutMillis = 5*1000;
const unsigned long powerDownAfterStartIfDarkTimeoutMillis = 5 * 1000;
const bool lightLEDsWhenPlaying = true;
const int activityMaximum = 8; // should be divisible by the difference of activeSoundInterval*
const int activeSoundIntervalMinimum = 1;
const int activeSoundIntervalMaximum = 5; // should be a power of 2 greater than the minimum
const int idleSoundIntervalMinimum = 60*10; // all intervals must be smaller than 32768
const int idleSoundIntervalMaximum = 60*60;
const int idleSoundIntervalMinimum = 60 * 10; // all intervals must be smaller than 32768
const int idleSoundIntervalMaximum = 60 * 60;
const int nightModeSleepSeconds = 2;
const bool silentAtNight = false;

Expand All @@ -43,127 +46,140 @@ const bool silentAtNight = false;

void setup()
{
// wait to make sure programmer is high-Z
// and be gentle with the power source
delay( 100 );

if ( runStartupTest )
{
// startup test: flash LEDs
LEDs::on();
delay( 50 );
LEDs::off();
delay( 500 );

// startup test: play all melodies once with fixed delay in between
for ( int i = 0; i < Bird.numMelodies; i++ ) {
Bird.playSingleMelody( i, lightLEDsWhenPlaying );
delay( 1000 );
}

delay( 1000 );
}

if ( powerDownAfterStartIfDark )
{
// check if environment is not dark
bool dark = true;
unsigned long startTime = millis();
while ( millis()-startTime <= powerDownAfterStartIfDarkTimeoutMillis ) {
if ( LEDs::senseRawBrightness( false ) > 0 ) {
dark = false;
break;
}
}
if ( dark ) {
// no brightness sensed within defined time window, power down and don't wake up until external reset
Piezo::on();
Piezo::tone( 1E6/220, 1E6 );
Piezo::off();
LowPower::powerDown();
}
}

// initialize random number generator with external source of randomness
pinMode( PIN_LED_1_ANODE, INPUT ); pinMode( PIN_LED_2_ANODE, INPUT );
randomSeed( analogRead( PIN_LED_1_ANODE ) ^ analogRead( PIN_LED_2_ANODE ) );
// wait to make sure programmer is high-Z
// and be gentle with the power source
delay( 100 );
#ifdef DEBUGMODE
SerialOut::printString("\nH E L L O\n");
#endif

if ( runStartupTest )
{
// startup test: flash LEDs
LEDs::on();
delay( 50 );
LEDs::off();
delay( 500 );

// startup test: play all melodies once with fixed delay in between
for ( int i = 0; i < Bird.numMelodies; i++ ) {
Bird.playSingleMelody( i, lightLEDsWhenPlaying );
delay( 1000 );
}

delay( 1000 );
}

if ( powerDownAfterStartIfDark )
{
// check if environment is not dark
bool dark = true;
unsigned long startTime = millis();
while ( millis() - startTime <= powerDownAfterStartIfDarkTimeoutMillis ) {
if ( LEDs::senseRawBrightness( false ) > 0 ) {
dark = false;
break;
}
}
if ( dark ) {
// no brightness sensed within defined time window, power down and don't wake up until external reset
Piezo::on();
Piezo::tone( 1E6 / 220, 1E6 );
Piezo::off();
LowPower::powerDown();
}
}

// initialize random number generator with external source of randomness
pinMode( PIN_LED_1_ANODE, INPUT ); pinMode( PIN_LED_2_ANODE, INPUT );
randomSeed( analogRead( PIN_LED_1_ANODE ) ^ analogRead( PIN_LED_2_ANODE ) );
}

void loop()
{
static int lastBrightness = 0;
static int activity = 0;
static bool active = false;
static int cyclesBeforeNextSound = 0;

// measure current brightness (logarithmic value, proportional to order of magnitude)
int brightness = LEDs::senseBrightness();

// determine if in darkness (i.e., night mode)
bool dark = lastBrightness == 0 && brightness == 0;

// compare with previous brightness (don't care for sign) and save for next cycle
int brightnessActivity = abs( lastBrightness - brightness );
lastBrightness = brightness;

// accumulate activity within limit
activity = activity + brightnessActivity;
activity = min( activityMaximum, activity );

// true if just became active in current cycle
bool justBecameActive = false;

// sensed activity?
if ( activity > 0 )
{
// flash LEDs, the more activity the longer
LEDs::on();
delay( activity * 2 );
LEDs::off();

// just became active?
if ( !active )
{
// set flag and remember active state
justBecameActive = true;
active = true;
}
}
else
{
// clear active state
active = false;
}

// time to make noise?
// either after scheduled interval or on transition from idle to active
if ( cyclesBeforeNextSound == 0 || justBecameActive )
{
// play sound
Bird.play( lightLEDsWhenPlaying );

// determine waiting time before next sound (both for active and idle case)
if ( activity > 0 )
{
// active case = mapping of max activity to min interval plus one cycle of randomness
cyclesBeforeNextSound = (activityMaximum-activity) * (activeSoundIntervalMaximum-activeSoundIntervalMinimum) / activityMaximum + activeSoundIntervalMinimum + random( 0, 1+1 );
}
else
{
cyclesBeforeNextSound = random( idleSoundIntervalMinimum, idleSoundIntervalMaximum+1 );
}
}
else
{
// stop counter when in night mode, i.e., remain silent at night
if ( !dark || !silentAtNight ) {
cyclesBeforeNextSound--;
}
}

// decrease activity level
if ( activity > 0 ) { activity--; }

// wait 1 second by day (2 seconds by night) until next cycle
LowPower::sleepSeconds( dark && !active ? nightModeSleepSeconds : 1 );
static int lastBrightness = 0;
static int activity = 0;
static bool active = false;
static int cyclesBeforeNextSound = 0;

// measure current brightness (logarithmic value, proportional to order of magnitude)
int brightness = LEDs::senseBrightness();
#ifdef DEBUGMODE
SerialOut::printString("\nbrightness = ");
SerialOut::printHex(brightness);
#endif

// determine if in darkness (i.e., night mode)
bool dark = lastBrightness == 0 && brightness == 0;

// compare with previous brightness (don't care for sign) and save for next cycle
int brightnessActivity = abs( lastBrightness - brightness );
lastBrightness = brightness;

// accumulate activity within limit
activity = activity + brightnessActivity;
activity = min( activityMaximum, activity );
#ifdef DEBUGMODE
SerialOut::printString("\nactivity = ");
SerialOut::printHex(activity);
#endif

// true if just became active in current cycle
bool justBecameActive = false;

// sensed activity?
if ( activity > 0 )
{
// flash LEDs, the more activity the longer
LEDs::on();
delay( activity * 2 );
LEDs::off();

// just became active?
if ( !active )
{
// set flag and remember active state
justBecameActive = true;
active = true;
}
}
else
{
// clear active state
active = false;
}

// time to make noise?
// either after scheduled interval or on transition from idle to active
if ( cyclesBeforeNextSound == 0 || justBecameActive )
{
// play sound
Bird.play( lightLEDsWhenPlaying );

// determine waiting time before next sound (both for active and idle case)
if ( activity > 0 )
{
// active case = mapping of max activity to min interval plus one cycle of randomness
cyclesBeforeNextSound = (activityMaximum - activity) * (activeSoundIntervalMaximum - activeSoundIntervalMinimum) / activityMaximum + activeSoundIntervalMinimum + random( 0, 1 + 1 );
}
else
{
cyclesBeforeNextSound = random( idleSoundIntervalMinimum, idleSoundIntervalMaximum + 1 );
}
}
else
{
// stop counter when in night mode, i.e., remain silent at night
if ( !dark || !silentAtNight ) {
cyclesBeforeNextSound--;
}
}

// decrease activity level
if ( activity > 0 ) {
activity--;
}

// wait 1 second by day (2 seconds by night) until next cycle
LowPower::sleepSeconds( dark && !active ? nightModeSleepSeconds : 1 );
}
43 changes: 43 additions & 0 deletions SolarbirdTiny/serialout.S
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Original file line number Diff line number Diff line change
@@ -0,0 +1,43 @@
;25mmHg Kazoosh, 2021
; must be in the same directory with .ino!!!!!!!!!!!!!!!!!!

/* half-duplex 81N serial uart in hand-tuned assembler
* 1%/2% Tx/Rx timing error for 115.2kbps@8Mhz
* 2%/1% Tx/Rx timing error for 230.4kbps@8Mhz
* optimized for no jitter vs AVR305 with 1 cycle/bit jitter
* @author: Ralph Doncaster
* @orginalversion: BasicSerial3.S
* link: https://nerdralph.blogspot.com/2014/01/avr-half-duplex-software-uart.html
* shrink to TX only by 25mmHg
*/

#define delayCount r18
#include <avr/io.h>
; correct for avr/io.h 0x20 port offset for io instructions
#define UART_Port (PORTB-0x20)
#define UART_Tx 4 // DISCONNECT PIEZO !!!!!!!!!!!!!!!!!!!!!!!!

.global TxTimedByte
; transmit byte in r24 with bit delay in r22 - 15 instructions
; calling code must set Tx line to idle state (high) or 1st byte may be lost
; i.e. PORTB |= (1<<UART_Tx)
TxTimedByte:
cli
sbi UART_Port-1, UART_Tx ; set Tx line to output
cbi UART_Port, UART_Tx ; start bit
in r0, UART_Port
ldi r25, 3 ; stop bit + idle state
TxLoop:
; 8 cycle loop + delay - total = 7 + 3*r22
mov delayCount, r22
TxDelay:
; delay (3 cycle * delayCount) -1
dec delayCount
brne TxDelay
bst r24, 0 ; store lsb in T
bld r0, UART_Tx
lsr r25
ror r24
out UART_Port, r0
brne TxLoop
reti ; return and enable interrupts
51 changes: 51 additions & 0 deletions SolarbirdTiny/serialout.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,51 @@
//25mmHg joetronica@gmx.net, Kazoosh, 2021

/* Optimized half-duplex serial uart implementation
* timing within 2% using at 230.4kbps @ 8Mhz
* @author: Ralph Doncaster
* @orginalversion: BasicSerial3.h
* link: https://nerdralph.blogspot.com/2014/01/avr-half-duplex-software-uart.html
* link: https://nerdralph.blogspot.com/2013/12/writing-avr-assembler-code-with-arduino.html
* link to newer version: https://github.com/nerdralph/nerdralph/blob/master/avr/picoUART.h
* shrink to TX only by 25mmHg
* use: printString("\nH E L L O\n");
* use: printHex(10);
*/

#define BAUD_RATE 115200

#ifdef F_CPU
/* account for integer truncation by adding 3/2 = 1.5 */
#define TXDELAY (((F_CPU/BAUD_RATE)-7 +1.5)/3)
#else
#error CPU frequency F_CPU undefined
#endif

extern "C"
{
static void TxTimedByte(char, char);
}

class SerialOut
{
public:

SerialOut() {}

static void printString(const char* str)
{
while (*str) TxTimedByte(*str++, TXDELAY);
}

static void printHex(uint16_t data2hex)
{
//convert unsigned integer numbers 2 HEX and print it
static const uint16_t mask = 0xF;
for(uint8_t i=0; i<4; i++)
{
uint8_t temp = (uint8_t)((data2hex >> (4*(3-i))) & mask);
temp = (temp < 0xA ? temp+'0' : temp-0xA+'A');
TxTimedByte(temp, TXDELAY);
}
}
};
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