Initial commit
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DarkSpir
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6 changed files with 578 additions and 0 deletions
2
.gitignore
vendored
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2
.gitignore
vendored
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*.elf
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*.o
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233
attiny10-lantern.cpp
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233
attiny10-lantern.cpp
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// Features
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// #define FEAT_UNDERVOLTSLEEP
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// Activates VLM Feature of Tiny10 (Voltage Level Monitoring) and sets it to the lowest value Vcc=2.5V
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// In 3V supply scenarios (2 AG13/LR44 button cells in serial) this makes no sense because Vcc almost immediately drops below 2.5V
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#define FEAT_STANDBY
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// Activates PB1 and PB2. PB2 is the standby button, pull it to ground to activate deep sleep or wake up. Its pullup resistor is enabled.
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// PB1 is set to high when awake and low when asleep. Can be used to disable external hardware during sleep mode
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// Color values
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#define R_STATIC 110 //80
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#define G_HIGH 55 //40
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#define B_STATIC 0 // 0
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#define G_BURN 46 //34
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#define G_FLICKER 43 //31
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#define G_FLUTTER 35 //49 //25
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// Timings
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#define T_ON 5
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#define T_BURN 4
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#define T_FLICKER 3
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#define T_FLUTTER 2
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#ifndef F_CPU
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#define F_CPU 8000000UL
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#endif
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#include <avr/io.h>
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#include <avr/sleep.h>
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#include <avr/interrupt.h>
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extern "C" {
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#include "ws2812_config.h"
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#include "light_ws2812.h"
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}
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struct cRGB led[1];
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volatile uint8_t timertick = 0;
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void delayms(uint16_t ms);
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#ifdef FEAT_STANDBY
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void buttonrelease() {
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while ((PINB & (1<<PB2)) == 0) { // Wait 50ms per check until PB2 goes up again (pulled low by pressed button)
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delayms(50);
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}
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delayms(50); // Wait additional 50ms to skip released button bouncing
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}
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void checksleep() {
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if ((EIMSK & (1<<INT0)) == 0) {
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uint8_t tempr = led[0].r;
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uint8_t tempg = led[0].g;
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uint8_t tempb = led[0].b;
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led[0].r = 0; led[0].g = 0; led[0].b = 0;
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ws2812_setleds(led,1);
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PORTB &= ~(1<<DDB1); // Deactivate LED Power supply
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buttonrelease(); // Wait for button release
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EIMSK |= (1<<INT0); // Reenable INT0 for wakeup
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set_sleep_mode(SLEEP_MODE_PWR_DOWN); // Prepare sleep mode
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sleep_enable();
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sleep_mode(); // Go down until PB2 gets low (by pressed button
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sleep_disable();
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PORTB |= (1<<DDB1); // Activate LED Power supply
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buttonrelease(); // Wait for button release
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led[0].r = tempr; led[0].g = tempg; led[0].b = tempb;
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ws2812_setleds(led,1); // Restore previous colors
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EIMSK |= (1<<INT0); // Reenable INT0 for next shutdown
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}
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}
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#endif
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void fire(uint8_t g_low, uint8_t g_high, uint8_t gdelay) {
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for (led[0].g = g_high; led[0].g > g_low; led[0].g--) {
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ws2812_setleds(led,1);
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delayms(gdelay);
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}
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for (led[0].g = g_low; led[0].g < g_high; led[0].g++) {
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ws2812_setleds(led,1);
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delayms(gdelay);
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}
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#ifdef FEAT_STANDBY
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checksleep();
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#endif
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}
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void on(uint8_t f) {
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led[0].g = G_HIGH;
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ws2812_setleds(led,1);
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for (uint8_t t = f<<4; t > 0; t--) { // f*16
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delayms(62);
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#ifdef FEAT_STANDBY
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checksleep();
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#endif
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}
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}
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void burn(uint8_t f) {
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for(uint8_t var = f<<4; var > 0; var--) { // f*16
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fire(G_BURN, G_HIGH, T_BURN);
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}
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}
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void flicker(uint8_t f) {
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fire(G_BURN,G_HIGH,T_BURN);
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for(uint8_t var = f<<4; var > 0; var--) { // f*16
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fire(G_FLICKER,G_HIGH,T_FLICKER);
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}
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fire(G_BURN,G_HIGH,T_BURN);
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fire(G_BURN,G_HIGH,T_BURN);
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fire(G_BURN,G_HIGH,T_BURN);
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}
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void flutter(uint8_t f) {
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fire(G_BURN,G_HIGH,T_BURN);
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fire(G_FLICKER,G_HIGH,T_FLICKER);
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for(uint8_t var = f<<4; var > 0; var--) { // f*16
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fire(G_FLUTTER,G_HIGH,T_FLUTTER);
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}
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fire(G_FLICKER,G_HIGH,T_FLICKER);
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fire(G_BURN,G_HIGH,T_BURN);
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fire(G_BURN,G_HIGH,T_BURN);
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}
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void delayms(uint16_t ms) {
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timertick = 0;
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cli();
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PRR &= ~(1<<PRTIM0); // Power up Timer 0
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TCNT0 = 0; // Reset Timer to Zero
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sei();
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TIMSK0 = 2; // Set OCIE0A Flag, Compare Match Interrupt for OCR0A
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if ( ms < 525 ) { // At Prescaler /64 and CPU = 8MHz, 1ms = 125 ticks. TIMER0 can only handle 524 of those
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OCR0A = (ms<<7) - ms - ms - ms; // ms * 125
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} else { // TIMER0 can only count 16bit, 2^16 / 125 per ms = 524,28ms max
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OCR0A = 65535;
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}
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// TCCR0A = 0; // Ports OC0A and OC0B disconnected, Waveform Generation Mode: CTC OCR0A
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TCCR0B = 11; // CS0 = 011 = Prescaler clk/1024), Waveform Generation Mode: CTC OCR0A
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while (timertick == 0) {
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set_sleep_mode(SLEEP_MODE_IDLE); // While we wait for the timer to finish its delay, put the CPU in idle mode
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sleep_enable();
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sleep_mode(); // Start idle mode. Timer interrupt will wake up the CPU again
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sleep_disable();
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} // CPU could wake up due to Timer interrupt or INT0 low level. If latter, make sure to go to sleep again.
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TCCR0B = 0; // Timer0 off
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TIMSK0 = 0; // Disable Timer Interrupts
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PRR |= (1<<PRTIM0); // Power down Timer0
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}
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ISR(TIM0_COMPA_vect) {
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timertick = 1;
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}
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#ifdef FEAT_UNDERVOLTSLEEP
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ISR(VLM_vect) { // Battery below 2.5V, power down for safety
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cli(); // Disable interrupts so that nothing can wake up deep sleep
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VLMCSR = 0; // Disable VLM entirely, interrupts will be ignored anyway
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struct cRGB leds[1];
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leds[0].r=0; leds[0].g=0; leds[0].b=0;
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ws2812_setleds(leds,1); // Turn LEDs off
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set_sleep_mode(SLEEP_MODE_PWR_DOWN); // Prepare eternal sleep
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sleep_enable();
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sleep_mode(); // Go down until someone changes the battery and resets the Tiny10
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}
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#endif
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#ifdef FEAT_STANDBY
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ISR(INT0_vect) {
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EIMSK &= ~(1<<INT0); // Disable INT0
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}
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#endif
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int __attribute__((OS_main))
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main (void) {
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CCP = 0xD8; // configuration change protection, write signature
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CLKPSR = 0; // set cpu clock prescaler =1 (8Mhz)
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ADCSRA &= ~(1<<ADEN); // Disable ADC
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PRR |= (1<<PRADC); // Power down ADC entirely
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PRR |= (1<<PRTIM0); // Power down Timer0 for now, we will enable it when needed
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#ifdef FEAT_UNDERVOLTSLEEP
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VLMCSR |= (1<<VLMIE) | (1<<VLM1) | (1<<VLM0); // Enable VLM Interrupt, set VLM Level to 2.5V
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#endif
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// Pin Setup:
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// PB0 - LED Data (out) Reset (PB3)
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// GND VCC
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// PB1 - LED Power (out) PB2 (INT0) - Sleep Button (in)
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// PB1 and PB2 are only used if FEAT_STANDBY is defined
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#ifdef FEAT_STANDBY
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DDRB |= (1<<DDB1); // Set PB1 to output leave everything else at default (input)
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PUEB |= (1<<PUEB2); // Activate internal Pullup resistor for PB2
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PORTB |= (1<<DDB1); // Activate LED Power supply
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EICRA = 0; // Set External Interrupt INT0 to low level interrupt request generation
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EIMSK |= (1<<INT0); // Enable INT0
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sei(); // Make sure interrupts are coming through
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#endif
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led[0].r=R_STATIC; led[0].g=G_HIGH; led[0].b=B_STATIC;
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ws2812_setleds(led,1);
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delayms(100);
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while (1)
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{
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on(12);
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burn(3);
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on(10);
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burn(3);
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on(5);
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flicker(3);
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burn(2);
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on(12);
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flutter(1);
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burn(4);
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on(15);
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burn(3);
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}
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return(0);
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}
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181
light_ws2812.c
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181
light_ws2812.c
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/*
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* light weight WS2812 lib V2.0b
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*
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* Controls WS2811/WS2812/WS2812B RGB-LEDs
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* Author: Tim (cpldcpu@gmail.com)
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*
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* Jan 18th, 2014 v2.0b Initial Version
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* Nov 29th, 2015 v2.3 Added SK6812RGBW support
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*
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* License: GNU GPL v2+ (see License.txt)
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*/
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#include "light_ws2812.h"
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#include <avr/interrupt.h>
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#include <avr/io.h>
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#include <util/delay.h>
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// Setleds for standard RGB
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void inline ws2812_setleds(struct cRGB *ledarray, uint16_t leds)
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{
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ws2812_setleds_pin(ledarray,leds, _BV(ws2812_pin));
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}
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void inline ws2812_setleds_pin(struct cRGB *ledarray, uint16_t leds, uint8_t pinmask)
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{
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ws2812_sendarray_mask((uint8_t*)ledarray,leds+leds+leds,pinmask);
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_delay_us(ws2812_resettime);
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}
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// Setleds for SK6812RGBW
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void inline ws2812_setleds_rgbw(struct cRGBW *ledarray, uint16_t leds)
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{
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ws2812_sendarray_mask((uint8_t*)ledarray,leds<<2,_BV(ws2812_pin));
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_delay_us(ws2812_resettime);
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}
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void ws2812_sendarray(uint8_t *data,uint16_t datlen)
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{
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ws2812_sendarray_mask(data,datlen,_BV(ws2812_pin));
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}
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/*
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This routine writes an array of bytes with RGB values to the Dataout pin
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using the fast 800kHz clockless WS2811/2812 protocol.
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*/
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// Timing in ns
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#define w_zeropulse 350
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#define w_onepulse 900
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#define w_totalperiod 1250
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// Fixed cycles used by the inner loop
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#define w_fixedlow 2
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#define w_fixedhigh 4
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#define w_fixedtotal 8
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// Insert NOPs to match the timing, if possible
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#define w_zerocycles (((F_CPU/1000)*w_zeropulse )/1000000)
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#define w_onecycles (((F_CPU/1000)*w_onepulse +500000)/1000000)
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#define w_totalcycles (((F_CPU/1000)*w_totalperiod +500000)/1000000)
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// w1 - nops between rising edge and falling edge - low
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#define w1 (w_zerocycles-w_fixedlow)
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// w2 nops between fe low and fe high
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#define w2 (w_onecycles-w_fixedhigh-w1)
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// w3 nops to complete loop
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#define w3 (w_totalcycles-w_fixedtotal-w1-w2)
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#if w1>0
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#define w1_nops w1
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#else
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#define w1_nops 0
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#endif
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// The only critical timing parameter is the minimum pulse length of the "0"
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// Warn or throw error if this timing can not be met with current F_CPU settings.
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#define w_lowtime ((w1_nops+w_fixedlow)*1000000)/(F_CPU/1000)
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#if w_lowtime>550
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#error "Light_ws2812: Sorry, the clock speed is too low. Did you set F_CPU correctly?"
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#elif w_lowtime>450
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#warning "Light_ws2812: The timing is critical and may only work on WS2812B, not on WS2812(S)."
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#warning "Please consider a higher clockspeed, if possible"
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#endif
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#if w2>0
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#define w2_nops w2
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#else
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#define w2_nops 0
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#endif
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#if w3>0
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#define w3_nops w3
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#else
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#define w3_nops 0
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#endif
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#define w_nop1 "nop \n\t"
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#define w_nop2 "rjmp .+0 \n\t"
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#define w_nop4 w_nop2 w_nop2
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#define w_nop8 w_nop4 w_nop4
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#define w_nop16 w_nop8 w_nop8
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void inline ws2812_sendarray_mask(uint8_t *data,uint16_t datlen,uint8_t maskhi)
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{
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uint8_t curbyte,ctr,masklo;
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uint8_t sreg_prev;
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ws2812_DDRREG |= maskhi; // Enable output
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masklo =~maskhi&ws2812_PORTREG;
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maskhi |= ws2812_PORTREG;
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sreg_prev=SREG;
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cli();
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while (datlen--) {
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curbyte=*data++;
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asm volatile(
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" ldi %0,8 \n\t"
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"loop%=: \n\t"
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" out %2,%3 \n\t" // '1' [01] '0' [01] - re
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#if (w1_nops&1)
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w_nop1
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#endif
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#if (w1_nops&2)
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w_nop2
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#endif
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#if (w1_nops&4)
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w_nop4
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#endif
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#if (w1_nops&8)
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w_nop8
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#endif
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#if (w1_nops&16)
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w_nop16
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#endif
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" sbrs %1,7 \n\t" // '1' [03] '0' [02]
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" out %2,%4 \n\t" // '1' [--] '0' [03] - fe-low
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" lsl %1 \n\t" // '1' [04] '0' [04]
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#if (w2_nops&1)
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w_nop1
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#endif
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#if (w2_nops&2)
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w_nop2
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#endif
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#if (w2_nops&4)
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w_nop4
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#endif
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#if (w2_nops&8)
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w_nop8
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#endif
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#if (w2_nops&16)
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w_nop16
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#endif
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" out %2,%4 \n\t" // '1' [+1] '0' [+1] - fe-high
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#if (w3_nops&1)
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w_nop1
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#endif
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#if (w3_nops&2)
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w_nop2
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#endif
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#if (w3_nops&4)
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w_nop4
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#endif
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#if (w3_nops&8)
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w_nop8
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#endif
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#if (w3_nops&16)
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w_nop16
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#endif
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" dec %0 \n\t" // '1' [+2] '0' [+2]
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" brne loop%=\n\t" // '1' [+3] '0' [+4]
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: "=&d" (ctr)
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: "r" (curbyte), "I" (_SFR_IO_ADDR(ws2812_PORTREG)), "r" (maskhi), "r" (masklo)
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);
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}
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SREG=sreg_prev;
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}
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97
light_ws2812.h
Normal file
97
light_ws2812.h
Normal file
|
|
@ -0,0 +1,97 @@
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/*
|
||||
* light weight WS2812 lib include
|
||||
*
|
||||
* Version 2.3 - Nev 29th 2015
|
||||
* Author: Tim (cpldcpu@gmail.com)
|
||||
*
|
||||
* Please do not change this file! All configuration is handled in "ws2812_config.h"
|
||||
*
|
||||
* License: GNU GPL v2+ (see License.txt)
|
||||
+
|
||||
*/
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||||
|
||||
#ifndef LIGHT_WS2812_H_
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||||
#define LIGHT_WS2812_H_
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||||
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||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
// Define Reset time in µs.
|
||||
//
|
||||
// This is the time the library spends waiting after writing the data.
|
||||
//
|
||||
// WS2813 needs 300 µs reset time
|
||||
// WS2812 and clones only need 50 µs
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
#if !defined(ws2812_resettime)
|
||||
#define ws2812_resettime 300
|
||||
#endif
|
||||
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
// Define I/O pin
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
#if !defined(ws2812_port)
|
||||
#define ws2812_port B // Data port
|
||||
#endif
|
||||
|
||||
#if !defined(ws2812_pin)
|
||||
#define ws2812_pin 0 // Data out pin
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Structure of the LED array
|
||||
*
|
||||
* cRGB: RGB for WS2812S/B/C/D, SK6812, SK6812Mini, SK6812WWA, APA104, APA106
|
||||
* cRGBW: RGBW for SK6812RGBW
|
||||
*/
|
||||
|
||||
struct cRGB { uint8_t r; uint8_t g; uint8_t b; };
|
||||
struct cRGBW { uint8_t g; uint8_t r; uint8_t b; uint8_t w;};
|
||||
|
||||
|
||||
|
||||
/* User Interface
|
||||
*
|
||||
* Input:
|
||||
* ledarray: An array of GRB data describing the LED colors
|
||||
* number_of_leds: The number of LEDs to write
|
||||
* pinmask (optional): Bitmask describing the output bin. e.g. _BV(PB0)
|
||||
*
|
||||
* The functions will perform the following actions:
|
||||
* - Set the data-out pin as output
|
||||
* - Send out the LED data
|
||||
* - Wait 50µs to reset the LEDs
|
||||
*/
|
||||
|
||||
void ws2812_setleds (struct cRGB *ledarray, uint16_t number_of_leds);
|
||||
void ws2812_setleds_pin (struct cRGB *ledarray, uint16_t number_of_leds,uint8_t pinmask);
|
||||
void ws2812_setleds_rgbw(struct cRGBW *ledarray, uint16_t number_of_leds);
|
||||
|
||||
/*
|
||||
* Old interface / Internal functions
|
||||
*
|
||||
* The functions take a byte-array and send to the data output as WS2812 bitstream.
|
||||
* The length is the number of bytes to send - three per LED.
|
||||
*/
|
||||
|
||||
void ws2812_sendarray (uint8_t *array,uint16_t length);
|
||||
void ws2812_sendarray_mask(uint8_t *array,uint16_t length, uint8_t pinmask);
|
||||
|
||||
|
||||
/*
|
||||
* Internal defines
|
||||
*/
|
||||
#if !defined(CONCAT)
|
||||
#define CONCAT(a, b) a ## b
|
||||
#endif
|
||||
|
||||
#if !defined(CONCAT_EXP)
|
||||
#define CONCAT_EXP(a, b) CONCAT(a, b)
|
||||
#endif
|
||||
|
||||
#define ws2812_PORTREG CONCAT_EXP(PORT,ws2812_port)
|
||||
#define ws2812_DDRREG CONCAT_EXP(DDR,ws2812_port)
|
||||
|
||||
#endif /* LIGHT_WS2812_H_ */
|
||||
31
makefile
Normal file
31
makefile
Normal file
|
|
@ -0,0 +1,31 @@
|
|||
CC = avr-gcc
|
||||
UC = attiny10
|
||||
COMPOPT = -mmcu=$(UC) -DF_CPU=8000000 -g -Os -flto -mtiny-stack -maccumulate-args -fno-inline-small-functions -mcall-prologues -fno-caller-saves -ffunction-sections
|
||||
LINKOPT = -mmcu=$(UC) -flto -mrelax -Wl,--gc-sections
|
||||
OBJ = attiny10-lantern.o light_ws2812.o
|
||||
|
||||
.PHONY: clean upload
|
||||
|
||||
all: attiny10-lantern.elf
|
||||
|
||||
attiny10-lantern.elf: $(OBJ)
|
||||
$(CC) $(LINKOPT) -o attiny10-lantern.elf $(OBJ)
|
||||
avr-size --mcu=attiny10 -C attiny10-lantern.elf
|
||||
|
||||
attiny10-lantern.o: attiny10-lantern.cpp
|
||||
$(CC) $(COMPOPT) -c attiny10-lantern.cpp
|
||||
|
||||
light_ws2812.o: light_ws2812.c
|
||||
$(CC) $(COMPOPT) -c light_ws2812.c
|
||||
|
||||
clean:
|
||||
rm -f *.o *.elf
|
||||
|
||||
install: attiny10-lantern.elf
|
||||
avrdude -C /etc/avrdude.conf -c usbasp -p t10 -U flash:w:attiny10-lantern.elf
|
||||
avr-size --mcu=attiny10 -C attiny10-lantern.elf
|
||||
|
||||
# Binary Size: 990 byte
|
||||
# -flto: 844 byte
|
||||
# -mtiny-stack: 842 byte
|
||||
# Code adv: 818 byte
|
||||
34
ws2812_config.h
Normal file
34
ws2812_config.h
Normal file
|
|
@ -0,0 +1,34 @@
|
|||
/*
|
||||
* light_ws2812_config.h
|
||||
*
|
||||
* v2.4 - Nov 27, 2016
|
||||
*
|
||||
* User Configuration file for the light_ws2812_lib
|
||||
*
|
||||
*/
|
||||
|
||||
|
||||
#ifndef WS2812_CONFIG_H_
|
||||
#define WS2812_CONFIG_H_
|
||||
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
// Define Reset time in µs.
|
||||
//
|
||||
// This is the time the library spends waiting after writing the data.
|
||||
//
|
||||
// WS2813 needs 300 µs reset time
|
||||
// WS2812 and clones only need 50 µs
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
|
||||
#define ws2812_resettime 50
|
||||
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
// Define I/O pin
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
|
||||
|
||||
#define ws2812_port B // Data port
|
||||
#define ws2812_pin 2 // Data out pin
|
||||
|
||||
#endif /* WS2812_CONFIG_H_ */
|
||||
Loading…
Reference in a new issue