Some small performance improvements from Thomas Kopp.
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119e9889c9
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5fe28a0205
1 changed files with 5 additions and 5 deletions
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@ -38,7 +38,7 @@ void init()
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PORTD = 0b01000000;
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// Setup Timer-Interrupt "TIMER1" compare match interrupt
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TIMSK |= (1 << OCIE1A);
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TIMSK = (1 << OCIE1A);
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// Refreshrate is 100Hz of the whole LEDCube.
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// The ISR comes up at 300Hz.
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@ -48,7 +48,7 @@ void init()
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OCR1AL = 0b01110001;
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// Set prescale to 64 and clear the counter on compare match.
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TCCR1B |= (1 << CS11) | (1 << CS10) | (1 << WGM12);
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TCCR1B = (1 << CS11) | (1 << CS10) | (1 << WGM12);
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sei(); // Enable interrupts global
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}
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@ -57,8 +57,7 @@ void init()
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*/
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ISR (TIMER1_COMPA_vect)
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{
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if ( !(--delay) ) // decrease the counter and check if we are done with waiting
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if (!(--delay)) // decrease the counter and check if we are done with waiting
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{
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if (frmnum == MAX_EEPROM_FRAMES)
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{
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@ -82,6 +81,7 @@ ISR (TIMER1_COMPA_vect)
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}
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// !!!Don't touch the 6th bit (9th LED wire)!!!
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// PORTD = __, 9, C, B, A, D+, D-, __
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PORTD &= 0b11000111; // delete bit 3 to 6 (bit 3 to 5 = layer 0 to 2
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uint8_t tmp = level * 9; // calculate the position in the frame
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@ -90,7 +90,7 @@ ISR (TIMER1_COMPA_vect)
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// 0 = led is on, 1 = led is off
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PORTB = ~((frame >> tmp) & 0xff);
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if ( (((frame >> tmp) >> 8) & 0x01) )
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if ((((frame >> tmp) >> 8) & 0x01))
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PORTD &= ~(1 << 6); // turn the 9th LED on
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else
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PORTD |= (1 << 6); // turn the 9th LED off
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