Prof Greg Egan
/
UAVXArm-GKE
UAVX Multicopter Flight Controller.
leds.c@0:62a1c91a859a, 2011-02-18 (annotated)
- Committer:
- gke
- Date:
- Fri Feb 18 22:28:05 2011 +0000
- Revision:
- 0:62a1c91a859a
- Child:
- 1:1e3318a30ddd
First release
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
gke | 0:62a1c91a859a | 1 | // =============================================================================================== |
gke | 0:62a1c91a859a | 2 | // = UAVXArm Quadrocopter Controller = |
gke | 0:62a1c91a859a | 3 | // = Copyright (c) 2008 by Prof. Greg Egan = |
gke | 0:62a1c91a859a | 4 | // = Original V3.15 Copyright (c) 2007 Ing. Wolfgang Mahringer = |
gke | 0:62a1c91a859a | 5 | // = http://code.google.com/p/uavp-mods/ http://uavp.ch = |
gke | 0:62a1c91a859a | 6 | // =============================================================================================== |
gke | 0:62a1c91a859a | 7 | |
gke | 0:62a1c91a859a | 8 | // This is part of UAVXArm. |
gke | 0:62a1c91a859a | 9 | |
gke | 0:62a1c91a859a | 10 | // UAVXArm is free software: you can redistribute it and/or modify it under the terms of the GNU |
gke | 0:62a1c91a859a | 11 | // General Public License as published by the Free Software Foundation, either version 3 of the |
gke | 0:62a1c91a859a | 12 | // License, or (at your option) any later version. |
gke | 0:62a1c91a859a | 13 | |
gke | 0:62a1c91a859a | 14 | // UAVXArm is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without |
gke | 0:62a1c91a859a | 15 | // even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
gke | 0:62a1c91a859a | 16 | // See the GNU General Public License for more details. |
gke | 0:62a1c91a859a | 17 | |
gke | 0:62a1c91a859a | 18 | // You should have received a copy of the GNU General Public License along with this program. |
gke | 0:62a1c91a859a | 19 | // If not, see http://www.gnu.org/licenses/ |
gke | 0:62a1c91a859a | 20 | |
gke | 0:62a1c91a859a | 21 | #include "UAVXArm.h" |
gke | 0:62a1c91a859a | 22 | |
gke | 0:62a1c91a859a | 23 | void SendLEDs(void); |
gke | 0:62a1c91a859a | 24 | void SaveLEDs(void); |
gke | 0:62a1c91a859a | 25 | void RestoreLEDs(void); |
gke | 0:62a1c91a859a | 26 | void LEDsOn(uint16); |
gke | 0:62a1c91a859a | 27 | void LEDsOff(uint16); |
gke | 0:62a1c91a859a | 28 | void LEDChaser(void); |
gke | 0:62a1c91a859a | 29 | |
gke | 0:62a1c91a859a | 30 | void PCA9551Test(void); |
gke | 0:62a1c91a859a | 31 | void WritePCA9551(uint8); |
gke | 0:62a1c91a859a | 32 | boolean IsPCA9551Active(void); |
gke | 0:62a1c91a859a | 33 | |
gke | 0:62a1c91a859a | 34 | void DoLEDs(void); |
gke | 0:62a1c91a859a | 35 | void PowerOutput(int8); |
gke | 0:62a1c91a859a | 36 | void LEDsAndBuzzer(void); |
gke | 0:62a1c91a859a | 37 | void InitLEDs(void); |
gke | 0:62a1c91a859a | 38 | |
gke | 0:62a1c91a859a | 39 | uint16 LEDShadow, SavedLEDs, LEDPattern = 0; |
gke | 0:62a1c91a859a | 40 | uint16 PrevLEDShadow; |
gke | 0:62a1c91a859a | 41 | uint8 PrevPCA9551LEDShadow; |
gke | 0:62a1c91a859a | 42 | |
gke | 0:62a1c91a859a | 43 | boolean PrevHolding = false; |
gke | 0:62a1c91a859a | 44 | const uint16 LEDChase[8] = { |
gke | 0:62a1c91a859a | 45 | YellowM, |
gke | 0:62a1c91a859a | 46 | RedM, |
gke | 0:62a1c91a859a | 47 | GreenM, |
gke | 0:62a1c91a859a | 48 | BlueM, |
gke | 0:62a1c91a859a | 49 | DRV1M, |
gke | 0:62a1c91a859a | 50 | DRV3M, |
gke | 0:62a1c91a859a | 51 | DRV2M, |
gke | 0:62a1c91a859a | 52 | DRV0M |
gke | 0:62a1c91a859a | 53 | }; |
gke | 0:62a1c91a859a | 54 | |
gke | 0:62a1c91a859a | 55 | void WritePCA9551(uint8 S) { |
gke | 0:62a1c91a859a | 56 | const uint8 M = 0; // On |
gke | 0:62a1c91a859a | 57 | // const uint8 M = 2; // PWM0 rate |
gke | 0:62a1c91a859a | 58 | // const uint8 M = 3; // PWM1 rate |
gke | 0:62a1c91a859a | 59 | |
gke | 0:62a1c91a859a | 60 | const uint8 LOFF = 1; // High impedance |
gke | 0:62a1c91a859a | 61 | static uint8 L03, L47, i; |
gke | 0:62a1c91a859a | 62 | |
gke | 0:62a1c91a859a | 63 | L03 = L47 = 0; |
gke | 0:62a1c91a859a | 64 | for ( i = 0; i < 4; i++ ) { |
gke | 0:62a1c91a859a | 65 | L03 <<= 2; |
gke | 0:62a1c91a859a | 66 | if ( S & 0x80 ) |
gke | 0:62a1c91a859a | 67 | L03 |= M; |
gke | 0:62a1c91a859a | 68 | else |
gke | 0:62a1c91a859a | 69 | L03 |= LOFF; |
gke | 0:62a1c91a859a | 70 | S <<= 1; |
gke | 0:62a1c91a859a | 71 | } |
gke | 0:62a1c91a859a | 72 | |
gke | 0:62a1c91a859a | 73 | for ( i = 0; i <4; i++ ) { |
gke | 0:62a1c91a859a | 74 | L47 <<= 2; |
gke | 0:62a1c91a859a | 75 | if ( S & 0x80 ) |
gke | 0:62a1c91a859a | 76 | L47 |= M; |
gke | 0:62a1c91a859a | 77 | else |
gke | 0:62a1c91a859a | 78 | L47 |= LOFF; |
gke | 0:62a1c91a859a | 79 | S <<= 1; |
gke | 0:62a1c91a859a | 80 | } |
gke | 0:62a1c91a859a | 81 | |
gke | 0:62a1c91a859a | 82 | I2CLED.start(); |
gke | 0:62a1c91a859a | 83 | I2CLED.write(PCA9551_ID); |
gke | 0:62a1c91a859a | 84 | I2CLED.write(0x15); |
gke | 0:62a1c91a859a | 85 | I2CLED.write(L03); |
gke | 0:62a1c91a859a | 86 | I2CLED.write(L47); |
gke | 0:62a1c91a859a | 87 | I2CLED.stop(); |
gke | 0:62a1c91a859a | 88 | |
gke | 0:62a1c91a859a | 89 | } // WritePCA9551 |
gke | 0:62a1c91a859a | 90 | |
gke | 0:62a1c91a859a | 91 | void SendLEDs(void) { // 39.3 uS @ 40MHz |
gke | 0:62a1c91a859a | 92 | static uint8 PCA9551LEDShadow; |
gke | 0:62a1c91a859a | 93 | |
gke | 0:62a1c91a859a | 94 | if ( LEDShadow != PrevLEDShadow ) { |
gke | 0:62a1c91a859a | 95 | |
gke | 0:62a1c91a859a | 96 | BlueLED = LEDShadow & BlueM; |
gke | 0:62a1c91a859a | 97 | RedLED = LEDShadow & RedM; |
gke | 0:62a1c91a859a | 98 | GreenLED = LEDShadow & GreenM; |
gke | 0:62a1c91a859a | 99 | YellowLED = LEDShadow & YellowM; |
gke | 0:62a1c91a859a | 100 | |
gke | 0:62a1c91a859a | 101 | PCA9551LEDShadow = uint8(LEDShadow & 0x00ff); |
gke | 0:62a1c91a859a | 102 | |
gke | 0:62a1c91a859a | 103 | if ( F.UsingLEDDriver && ( PCA9551LEDShadow != PrevPCA9551LEDShadow ) ) { |
gke | 0:62a1c91a859a | 104 | WritePCA9551(PCA9551LEDShadow); |
gke | 0:62a1c91a859a | 105 | PrevPCA9551LEDShadow = PCA9551LEDShadow; |
gke | 0:62a1c91a859a | 106 | } |
gke | 0:62a1c91a859a | 107 | |
gke | 0:62a1c91a859a | 108 | PrevLEDShadow = LEDShadow; |
gke | 0:62a1c91a859a | 109 | } |
gke | 0:62a1c91a859a | 110 | |
gke | 0:62a1c91a859a | 111 | } // SendLEDs |
gke | 0:62a1c91a859a | 112 | |
gke | 0:62a1c91a859a | 113 | |
gke | 0:62a1c91a859a | 114 | void SaveLEDs(void) { // one level only |
gke | 0:62a1c91a859a | 115 | SavedLEDs = LEDShadow; |
gke | 0:62a1c91a859a | 116 | } // SaveLEDs |
gke | 0:62a1c91a859a | 117 | |
gke | 0:62a1c91a859a | 118 | void RestoreLEDs(void) { |
gke | 0:62a1c91a859a | 119 | LEDShadow = SavedLEDs; |
gke | 0:62a1c91a859a | 120 | SendLEDs(); |
gke | 0:62a1c91a859a | 121 | } // RestoreLEDs |
gke | 0:62a1c91a859a | 122 | |
gke | 0:62a1c91a859a | 123 | void LEDsOn(uint16 l) { |
gke | 0:62a1c91a859a | 124 | LEDShadow |= l; |
gke | 0:62a1c91a859a | 125 | SendLEDs(); |
gke | 0:62a1c91a859a | 126 | } // LEDsOn |
gke | 0:62a1c91a859a | 127 | |
gke | 0:62a1c91a859a | 128 | void LEDsOff(uint16 l) { |
gke | 0:62a1c91a859a | 129 | LEDShadow &= ~l; |
gke | 0:62a1c91a859a | 130 | SendLEDs(); |
gke | 0:62a1c91a859a | 131 | } // LEDsOff |
gke | 0:62a1c91a859a | 132 | |
gke | 0:62a1c91a859a | 133 | void LEDChaser(void) { |
gke | 0:62a1c91a859a | 134 | #define LED_NO (uint8)6 // skip buzzer |
gke | 0:62a1c91a859a | 135 | //#define LED_NO (uint8)7 // all LEDs |
gke | 0:62a1c91a859a | 136 | |
gke | 0:62a1c91a859a | 137 | if ( mSClock() > mS[LEDChaserUpdate] ) { |
gke | 0:62a1c91a859a | 138 | if ( F.HoldingAlt ) { |
gke | 0:62a1c91a859a | 139 | LEDShadow ^= LEDChase[LEDPattern]; |
gke | 0:62a1c91a859a | 140 | if ( LEDPattern < LED_NO ) LEDPattern++; |
gke | 0:62a1c91a859a | 141 | else LEDPattern = 0; |
gke | 0:62a1c91a859a | 142 | LEDShadow |= LEDChase[LEDPattern]; |
gke | 0:62a1c91a859a | 143 | SendLEDs(); |
gke | 0:62a1c91a859a | 144 | } else { |
gke | 0:62a1c91a859a | 145 | LEDShadow = SavedLEDs; |
gke | 0:62a1c91a859a | 146 | SendLEDs(); |
gke | 0:62a1c91a859a | 147 | } |
gke | 0:62a1c91a859a | 148 | |
gke | 0:62a1c91a859a | 149 | mS[LEDChaserUpdate] = mSClock() + 50; |
gke | 0:62a1c91a859a | 150 | } |
gke | 0:62a1c91a859a | 151 | } // LEDChaser |
gke | 0:62a1c91a859a | 152 | |
gke | 0:62a1c91a859a | 153 | void DoLEDs(void) { |
gke | 0:62a1c91a859a | 154 | if ( F.AccelerationsValid ) LEDYellow_ON; |
gke | 0:62a1c91a859a | 155 | else LEDYellow_OFF; |
gke | 0:62a1c91a859a | 156 | |
gke | 0:62a1c91a859a | 157 | if ( F.Signal ) { |
gke | 0:62a1c91a859a | 158 | LEDRed_OFF; |
gke | 0:62a1c91a859a | 159 | LEDGreen_ON; |
gke | 0:62a1c91a859a | 160 | } else { |
gke | 0:62a1c91a859a | 161 | LEDGreen_OFF; |
gke | 0:62a1c91a859a | 162 | LEDRed_ON; |
gke | 0:62a1c91a859a | 163 | } |
gke | 0:62a1c91a859a | 164 | } // DoLEDs |
gke | 0:62a1c91a859a | 165 | |
gke | 0:62a1c91a859a | 166 | void PowerOutput(int8 d) { |
gke | 0:62a1c91a859a | 167 | int8 s; |
gke | 0:62a1c91a859a | 168 | uint16 m; |
gke | 0:62a1c91a859a | 169 | |
gke | 0:62a1c91a859a | 170 | m = 1 << d; |
gke | 0:62a1c91a859a | 171 | for ( s=0; s < 10; s++ ) { // 10 flashes (count MUST be even!) |
gke | 0:62a1c91a859a | 172 | LEDShadow ^= m; |
gke | 0:62a1c91a859a | 173 | SendLEDs(); |
gke | 0:62a1c91a859a | 174 | Delay1mS(50); |
gke | 0:62a1c91a859a | 175 | } |
gke | 0:62a1c91a859a | 176 | } // PowerOutput |
gke | 0:62a1c91a859a | 177 | |
gke | 0:62a1c91a859a | 178 | void LEDsAndBuzzer(void) { |
gke | 0:62a1c91a859a | 179 | int8 s, m; |
gke | 0:62a1c91a859a | 180 | uint16 mask, LEDSave; |
gke | 0:62a1c91a859a | 181 | |
gke | 0:62a1c91a859a | 182 | LEDSave = LEDShadow; |
gke | 0:62a1c91a859a | 183 | LEDShadow = 0; |
gke | 0:62a1c91a859a | 184 | SendLEDs(); |
gke | 0:62a1c91a859a | 185 | |
gke | 0:62a1c91a859a | 186 | TxString("\r\nOutput test\r\n"); |
gke | 0:62a1c91a859a | 187 | TxString("Sequence Drv0/Buzz, Drv1, Drv2, Drv3, Aux0, Aux1, Aux2, Aux3, Y, R, G, B\r\n"); |
gke | 0:62a1c91a859a | 188 | mask = (uint8)1; |
gke | 0:62a1c91a859a | 189 | for ( m = 1; m <= 12; m++ ) { |
gke | 0:62a1c91a859a | 190 | for ( s = 0; s < 10; s++ ) { // 10 flashes (count MUST be even!) |
gke | 0:62a1c91a859a | 191 | LEDShadow ^= mask; |
gke | 0:62a1c91a859a | 192 | SendLEDs(); |
gke | 0:62a1c91a859a | 193 | Delay1mS(100); |
gke | 0:62a1c91a859a | 194 | } |
gke | 0:62a1c91a859a | 195 | mask <<= 1; |
gke | 0:62a1c91a859a | 196 | } |
gke | 0:62a1c91a859a | 197 | LEDShadow = LEDSave; |
gke | 0:62a1c91a859a | 198 | SendLEDs(); |
gke | 0:62a1c91a859a | 199 | TxString("Test Finished\r\n"); |
gke | 0:62a1c91a859a | 200 | } // LEDsAndBuzzer |
gke | 0:62a1c91a859a | 201 | |
gke | 0:62a1c91a859a | 202 | //______________________________________________________________________________________________ |
gke | 0:62a1c91a859a | 203 | |
gke | 0:62a1c91a859a | 204 | // LED Driver |
gke | 0:62a1c91a859a | 205 | |
gke | 0:62a1c91a859a | 206 | void PCA9551Test(void) { |
gke | 0:62a1c91a859a | 207 | static char b[8], i, r; |
gke | 0:62a1c91a859a | 208 | |
gke | 0:62a1c91a859a | 209 | TxString("\r\nPCA9551Test\r\n"); |
gke | 0:62a1c91a859a | 210 | |
gke | 0:62a1c91a859a | 211 | I2CLED.start(); |
gke | 0:62a1c91a859a | 212 | I2CGYRO.write(PCA9551_ID); |
gke | 0:62a1c91a859a | 213 | I2CGYRO.write(0x11); |
gke | 0:62a1c91a859a | 214 | I2CLED.stop(); |
gke | 0:62a1c91a859a | 215 | |
gke | 0:62a1c91a859a | 216 | I2CLED.read(PCA9551_ID, b, 7); |
gke | 0:62a1c91a859a | 217 | |
gke | 0:62a1c91a859a | 218 | TxString("0:\t0b"); |
gke | 0:62a1c91a859a | 219 | TxBin8(b[6]); |
gke | 0:62a1c91a859a | 220 | TxNextLine(); |
gke | 0:62a1c91a859a | 221 | for (i = 0; i <6; i++ ) { |
gke | 0:62a1c91a859a | 222 | TxVal32(i+1, 0,0); |
gke | 0:62a1c91a859a | 223 | TxString(":\t0b"); |
gke | 0:62a1c91a859a | 224 | TxBin8(b[i]); |
gke | 0:62a1c91a859a | 225 | TxNextLine(); |
gke | 0:62a1c91a859a | 226 | } |
gke | 0:62a1c91a859a | 227 | TxNextLine(); |
gke | 0:62a1c91a859a | 228 | } // PCA9551Test |
gke | 0:62a1c91a859a | 229 | |
gke | 0:62a1c91a859a | 230 | boolean IsPCA9551Active(void) { |
gke | 0:62a1c91a859a | 231 | |
gke | 0:62a1c91a859a | 232 | const char b[7] = {0x11,0x25,0x80,0x25,0x80,0x00,0x00}; // Period 1Sec., PWM 50%, ON |
gke | 0:62a1c91a859a | 233 | |
gke | 0:62a1c91a859a | 234 | F.UsingLEDDriver = true; // optimistic |
gke | 0:62a1c91a859a | 235 | |
gke | 0:62a1c91a859a | 236 | I2CLED.start(); |
gke | 0:62a1c91a859a | 237 | if ( I2CGYRO.write(PCA9551_ID) != I2C_ACK ) goto LError; |
gke | 0:62a1c91a859a | 238 | I2CLED.stop(); |
gke | 0:62a1c91a859a | 239 | |
gke | 0:62a1c91a859a | 240 | I2CLED.write(PCA9551_ID, b, 7); |
gke | 0:62a1c91a859a | 241 | |
gke | 0:62a1c91a859a | 242 | TrackMinI2CRate(400000); |
gke | 0:62a1c91a859a | 243 | |
gke | 0:62a1c91a859a | 244 | return ( true ); |
gke | 0:62a1c91a859a | 245 | |
gke | 0:62a1c91a859a | 246 | LError: |
gke | 0:62a1c91a859a | 247 | F.UsingLEDDriver = false; |
gke | 0:62a1c91a859a | 248 | return ( F.UsingLEDDriver ); |
gke | 0:62a1c91a859a | 249 | |
gke | 0:62a1c91a859a | 250 | } //IsPCA9551Active |
gke | 0:62a1c91a859a | 251 | |
gke | 0:62a1c91a859a | 252 | void InitLEDs(void) { |
gke | 0:62a1c91a859a | 253 | |
gke | 0:62a1c91a859a | 254 | boolean r; |
gke | 0:62a1c91a859a | 255 | |
gke | 0:62a1c91a859a | 256 | r = IsPCA9551Active(); |
gke | 0:62a1c91a859a | 257 | |
gke | 0:62a1c91a859a | 258 | LEDShadow = SavedLEDs = LEDPattern = 0; |
gke | 0:62a1c91a859a | 259 | PrevLEDShadow = 0x0fff; |
gke | 0:62a1c91a859a | 260 | |
gke | 0:62a1c91a859a | 261 | PrevPCA9551LEDShadow = 0; |
gke | 0:62a1c91a859a | 262 | WritePCA9551( PrevPCA9551LEDShadow ); |
gke | 0:62a1c91a859a | 263 | |
gke | 0:62a1c91a859a | 264 | } // InitLEDs |
gke | 0:62a1c91a859a | 265 |