Rev 1775 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1775 | - | 1 | #include <inttypes.h> |
| 2 | #include "attitude.h" |
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| 3 | #include "uart0.h" |
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| 4 | #include "configuration.h" |
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| 5 | #include "dongfangMath.h" |
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| 6 | |||
| 7 | // For scope debugging only! |
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| 8 | #include "rc.h" |
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| 9 | |||
| 10 | // = cos^2(45 degs). |
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| 1821 | - | 11 | const int32_t MINPROJECTION = (int32_t) MATH_UNIT_FACTOR * MATH_UNIT_FACTOR / 2; |
| 1775 | - | 12 | |
| 13 | // Takes 380 - 400 usec. Way too slow. |
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| 14 | // With static MINPROJECTION: 220 usec. |
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| 15 | uint16_t AC_getThrottle(uint16_t throttle) { |
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| 1821 | - | 16 | int32_t projection; |
| 1775 | - | 17 | |
| 1821 | - | 18 | // part1 start: 150 usec |
| 19 | // It's factor (int32_t)MATH_UNIT_FACTOR^2 too high. |
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| 20 | projection = (int32_t) int_cos(angle[PITCH]) * (int32_t) int_cos(angle[ROLL]); |
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| 21 | // part1 end. |
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| 1775 | - | 22 | |
| 1821 | - | 23 | uint8_t effect = dynamicParams.UserParams[2]; // Userparam 3 |
| 24 | int16_t deltaThrottle; |
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| 1775 | - | 25 | |
| 1821 | - | 26 | if (projection < MINPROJECTION && projection >= 0) { |
| 27 | // projection = MINPROJECTION; |
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| 28 | deltaThrottle = 0; |
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| 29 | } else if (projection > -MINPROJECTION && projection < 0) { |
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| 30 | // projection = -MINPROJECITON; |
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| 31 | deltaThrottle = 0; |
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| 32 | } else |
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| 33 | /* |
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| 34 | * We need delta throttle = constant/projection1 |
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| 35 | * (constant * MATH_UNIT_FACTOR^2) / projection. |
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| 36 | */ |
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| 37 | deltaThrottle = ((int32_t) effect * (int32_t) MATH_UNIT_FACTOR |
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| 38 | * (int32_t) MATH_UNIT_FACTOR) / (projection / 10) - effect * 10; |
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| 39 | // DebugOut.Analog[13] = deltaThrottle; |
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| 1775 | - | 40 | |
| 1821 | - | 41 | return throttle + deltaThrottle; |
| 1775 | - | 42 | } |
| 43 | /* |
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| 1821 | - | 44 | har: R = e * k/p |
| 45 | vil R = e * ( 1 - k/p ) |
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| 46 | = e - ek/p |
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| 47 | */ |