Prof Greg Egan
/
UAVXArm-GKE
UAVX Multicopter Flight Controller.
temperature.c@2:90292f8bd179, 2011-04-26 (annotated)
- Committer:
- gke
- Date:
- Tue Apr 26 12:12:29 2011 +0000
- Revision:
- 2:90292f8bd179
- Parent:
- 0:62a1c91a859a
Not flightworthy. Posted for others to make use of the I2C SW code.
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 | 2:90292f8bd179 | 5 | // = http://code.google.com/p/uavp-mods/ = |
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 | void GetTemperature(void); |
gke | 0:62a1c91a859a | 23 | void InitTemperature(void); |
gke | 0:62a1c91a859a | 24 | |
gke | 0:62a1c91a859a | 25 | i16u AmbientTemperature; |
gke | 0:62a1c91a859a | 26 | |
gke | 0:62a1c91a859a | 27 | void GetTemperature(void) { |
gke | 0:62a1c91a859a | 28 | |
gke | 0:62a1c91a859a | 29 | I2CTEMP.start(); |
gke | 2:90292f8bd179 | 30 | if ( I2CTEMP.write(TMP100_RD) != I2C_ACK ) goto TMP100Error; |
gke | 0:62a1c91a859a | 31 | AmbientTemperature.b1 = I2CTEMP.read(I2C_ACK); |
gke | 0:62a1c91a859a | 32 | AmbientTemperature.b0 = I2CTEMP.read(I2C_NACK); |
gke | 0:62a1c91a859a | 33 | I2CTEMP.stop(); |
gke | 0:62a1c91a859a | 34 | |
gke | 0:62a1c91a859a | 35 | // Top 9 bits 0.5C res. scale to 0.1C |
gke | 0:62a1c91a859a | 36 | AmbientTemperature.i16 = SRS16( AmbientTemperature.i16, 7) * 5; |
gke | 0:62a1c91a859a | 37 | if ( AmbientTemperature.i16 > Stats[MaxTempS]) |
gke | 0:62a1c91a859a | 38 | Stats[MaxTempS] = AmbientTemperature.i16; |
gke | 0:62a1c91a859a | 39 | else |
gke | 0:62a1c91a859a | 40 | if ( AmbientTemperature.i16 < Stats[MinTempS] ) |
gke | 0:62a1c91a859a | 41 | Stats[MinTempS] = AmbientTemperature.i16; |
gke | 0:62a1c91a859a | 42 | return; |
gke | 0:62a1c91a859a | 43 | |
gke | 2:90292f8bd179 | 44 | TMP100Error: |
gke | 0:62a1c91a859a | 45 | I2CTEMP.stop(); |
gke | 2:90292f8bd179 | 46 | |
gke | 2:90292f8bd179 | 47 | I2CError[TMP100_ID]++; |
gke | 0:62a1c91a859a | 48 | AmbientTemperature.i16 = 0; |
gke | 0:62a1c91a859a | 49 | |
gke | 0:62a1c91a859a | 50 | return; |
gke | 0:62a1c91a859a | 51 | } // GetTemperature |
gke | 0:62a1c91a859a | 52 | |
gke | 0:62a1c91a859a | 53 | void InitTemperature(void) { |
gke | 0:62a1c91a859a | 54 | I2CTEMP.start(); |
gke | 0:62a1c91a859a | 55 | if( I2CTEMP.write(TMP100_WR) != I2C_ACK ) goto Terror; |
gke | 0:62a1c91a859a | 56 | if( I2CTEMP.write(TMP100_CMD) != I2C_ACK ) goto Terror; |
gke | 0:62a1c91a859a | 57 | if( I2CTEMP.write(TMP100_CFG) != I2C_ACK ) goto Terror; |
gke | 0:62a1c91a859a | 58 | I2CTEMP.stop(); |
gke | 0:62a1c91a859a | 59 | |
gke | 0:62a1c91a859a | 60 | I2CTEMP.start(); |
gke | 0:62a1c91a859a | 61 | if( I2CTEMP.write(TMP100_WR) != I2C_ACK ) goto Terror; |
gke | 0:62a1c91a859a | 62 | if( I2CTEMP.write(TMP100_TMP) != I2C_ACK ) goto Terror; // Select temperature |
gke | 0:62a1c91a859a | 63 | I2CTEMP.stop(); |
gke | 0:62a1c91a859a | 64 | |
gke | 0:62a1c91a859a | 65 | GetTemperature(); |
gke | 0:62a1c91a859a | 66 | |
gke | 0:62a1c91a859a | 67 | return; |
gke | 0:62a1c91a859a | 68 | |
gke | 0:62a1c91a859a | 69 | Terror: |
gke | 0:62a1c91a859a | 70 | I2CTEMP.stop(); |
gke | 0:62a1c91a859a | 71 | AmbientTemperature.i16 = 0; |
gke | 0:62a1c91a859a | 72 | |
gke | 0:62a1c91a859a | 73 | } // InitTemperature |