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56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
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// disk.h
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// A2Mac
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//
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// Created by Tamas Rudnai on 2/15/20.
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// Copyright © 2020 GameAlloy. All rights reserved.
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//
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#ifndef disk_h
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#define disk_h
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#include "common.h"
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#define minDiskTrackNum 0
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#define maxDiskTrackNum 39
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#define minDiskPhaseStates 8 // 4 quarters * 2 because of two neighbouring magnets can be activated at the same time which leaves motor in a half quarter movement
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#define minDiskPhaseNum 0
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#define maxDiskPhaseNum (minDiskPhaseStates * maxDiskTrackNum)
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typedef struct phase_s {
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uint8_t lastMagnet : 4;
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uint8_t magnet : 4;
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int count;
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} phase_t;
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typedef struct disk_s {
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phase_t phase;
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} disk_t;
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extern disk_t disk;
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// Magnet States --> Stepper Motor Position
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//
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// N
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// 0001
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// NW | NE
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// 1001 | 0011
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// |
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// W 1000 ------- o ------- 0010 E
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// |
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// 1100 | 0110
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// SW | SE
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// 0100
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// S
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extern const int magnet_to_Poistion[16];
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extern const int position_to_direction[8][8];
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extern void disk_phase();
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extern uint8_t disk_read();
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#endif /* disk_h */
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