servo.asm
1 | .include "m8def.inc"
| 2 |
| 3 | #define temp r16
| 4 |
| 5 |
| 6 |
| 7 |
| 8 |
| 9 |
| 10 | .org 0x000
| 11 | rjmp start
| 12 | .org INT0addr ; External Interrupt0 Vector Address
| 13 | reti
| 14 | .org INT1addr ; External Interrupt1 Vector Address
| 15 | reti
| 16 | .org OC2addr ; Output Compare2 Interrupt Vector Address
| 17 | reti
| 18 | .org OVF2addr ; Overflow2 Interrupt Vector Address
| 19 | reti
| 20 | .org ICP1addr ; Input Capture1 Interrupt Vector Address
| 21 | reti
| 22 | .org OC1Aaddr ; Output Compare1A Interrupt Vector Address
| 23 | reti
| 24 | .org OC1Baddr ; Output Compare1B Interrupt Vector Address
| 25 | reti
| 26 | .org OVF1addr ; Overflow1 Interrupt Vector Address
| 27 | rjmp timer1
| 28 | .org OVF0addr ; Overflow0 Interrupt Vector Address
| 29 | reti
| 30 | .org SPIaddr ; SPI Interrupt Vector Address
| 31 | reti
| 32 | .org URXCaddr ; USART Receive Complete Interrupt Vector Address
| 33 | reti
| 34 | .org UDREaddr ; USART Data Register Empty Interrupt Vector Address
| 35 | reti
| 36 | .org UTXCaddr ; USART Transmit Complete Interrupt Vector Address
| 37 | reti
| 38 | .org ADCCaddr ; ADC Interrupt Vector Address
| 39 | reti
| 40 | .org ERDYaddr ; EEPROM Interrupt Vector Address
| 41 | reti
| 42 | .org ACIaddr ; Analog Comparator Interrupt Vector Address
| 43 | reti
| 44 | .org TWIaddr ; Irq. vector address for Two-Wire Interface
| 45 | reti
| 46 | .org SPMRaddr ; SPM complete Interrupt Vector Address
| 47 | reti
| 48 |
| 49 |
| 50 |
| 51 |
| 52 |
| 53 |
| 54 | start:
| 55 |
| 56 | ldi temp, LOW(RAMEND)
| 57 | out SPL, temp
| 58 | ldi temp, HIGH(RAMEND)
| 59 | out SPH, temp
| 60 |
| 61 | ldi temp, 0xFF
| 62 | out DDRB, temp
| 63 | rcall loadtimer
| 64 | ldi temp, 1<<CS12
| 65 | out TCCR1B, temp
| 66 | ldi temp, 1<<TOIE1
| 67 | out TIMSK, temp
| 68 | ldi temp, (1<<COM1A1)| (1<<COM1A0) | (1<<WGM11) | (1<<WGM10);
| 69 | out TCCR1A, temp
| 70 |
| 71 | ldi temp, 0x03
| 72 | out OCR1AH, temp
| 73 | ldi temp, 0xeF
| 74 | out OCR1AL, temp
| 75 |
| 76 |
| 77 |
| 78 |
| 79 | loop: rjmp loop
| 80 |
| 81 |
| 82 | timer1:
| 83 | rcall loadtimer
| 84 | reti
| 85 |
| 86 |
| 87 |
| 88 | loadtimer:
| 89 | cli
| 90 | ldi temp, 0x63
| 91 | out TCNT1H, temp
| 92 | ldi temp, 0x00
| 93 | out TCNT1L, temp
| 94 | sei
| 95 |
| 96 | ret
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