NXP / FXLS8471

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Dependents:   FRDMSTBC-A8471_SensorShield_HelloWorld

Fork of MMA8652FC by NXP

FXLS8471.cpp@1:ac1a9afd8401, 2016-03-23 (annotated)

Committer:
AswinSivakumar
Date:
Wed Mar 23 05:34:00 2016 +0000
Revision:
1:ac1a9afd8401
Parent:
MMA8652.cpp@0:6642dad09196
Child:
2:0eacd0e5db3b
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AswinSivakumar 0:6642dad09196 1 /* Copyright (c) 2015 NXP Semiconductors. MIT License
AswinSivakumar 0:6642dad09196 2 *
AswinSivakumar 0:6642dad09196 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
AswinSivakumar 0:6642dad09196 4 * and associated documentation files (the "Software"), to deal in the Software without
AswinSivakumar 0:6642dad09196 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
AswinSivakumar 0:6642dad09196 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
AswinSivakumar 0:6642dad09196 7 * Software is furnished to do so, subject to the following conditions:
AswinSivakumar 0:6642dad09196 8 *
AswinSivakumar 0:6642dad09196 9 * The above copyright notice and this permission notice shall be included in all copies or
AswinSivakumar 0:6642dad09196 10 * substantial portions of the Software.
AswinSivakumar 0:6642dad09196 11 *
AswinSivakumar 0:6642dad09196 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
AswinSivakumar 0:6642dad09196 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
AswinSivakumar 0:6642dad09196 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
AswinSivakumar 0:6642dad09196 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
AswinSivakumar 0:6642dad09196 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
AswinSivakumar 0:6642dad09196 17 */
AswinSivakumar 0:6642dad09196 18
AswinSivakumar 1:ac1a9afd8401 19 #include "FXLS8471.h"
AswinSivakumar 0:6642dad09196 20 #include "mbed.h"
AswinSivakumar 0:6642dad09196 21
AswinSivakumar 1:ac1a9afd8401 22 FXLS8471::FXLS8471(PinName MOSI, PinName MISO, PinName CLK, PinName CS) : FXLS8471_spi(MOSI,MISO,CLK), FXLS8471_cs(CS)
AswinSivakumar 0:6642dad09196 23 {
AswinSivakumar 1:ac1a9afd8401 24 FXLS8471_cs=1;
AswinSivakumar 0:6642dad09196 25 }
AswinSivakumar 0:6642dad09196 26
AswinSivakumar 1:ac1a9afd8401 27 void FXLS8471::FXLS8471_config(void)
AswinSivakumar 0:6642dad09196 28 {
AswinSivakumar 0:6642dad09196 29 char d[2];
AswinSivakumar 1:ac1a9afd8401 30 d[0] = FXLS8471_CTRL_REG1; //Puts device in Standby mode
AswinSivakumar 1:ac1a9afd8401 31 FXLS8471_cs=0;
AswinSivakumar 1:ac1a9afd8401 32 FXLS8471_spi.write(d[0]+128);
AswinSivakumar 1:ac1a9afd8401 33 FXLS8471_spi.write(0x00);
AswinSivakumar 1:ac1a9afd8401 34 FXLS8471_spi.write(0x00);
AswinSivakumar 1:ac1a9afd8401 35 FXLS8471_cs=1;
AswinSivakumar 0:6642dad09196 36
AswinSivakumar 0:6642dad09196 37
AswinSivakumar 1:ac1a9afd8401 38 d[0] = FXLS8471_CTRL_REG1; //Puts device in Active mode
AswinSivakumar 1:ac1a9afd8401 39 FXLS8471_cs=0;
AswinSivakumar 1:ac1a9afd8401 40 FXLS8471_spi.write(d[0]+128);
AswinSivakumar 1:ac1a9afd8401 41 FXLS8471_spi.write(0x01);
AswinSivakumar 1:ac1a9afd8401 42 FXLS8471_spi.write(0x01);
AswinSivakumar 1:ac1a9afd8401 43 FXLS8471_cs=1;
AswinSivakumar 0:6642dad09196 44
AswinSivakumar 0:6642dad09196 45 }
AswinSivakumar 0:6642dad09196 46
AswinSivakumar 0:6642dad09196 47
AswinSivakumar 0:6642dad09196 48
AswinSivakumar 1:ac1a9afd8401 49 void FXLS8471::acquire_FXLS8471_data_g(float * a_data)
AswinSivakumar 0:6642dad09196 50 {
AswinSivakumar 0:6642dad09196 51
AswinSivakumar 0:6642dad09196 52 char data_bytes[7];
AswinSivakumar 0:6642dad09196 53 char d[1];
AswinSivakumar 1:ac1a9afd8401 54 int count=1;
AswinSivakumar 1:ac1a9afd8401 55 d[0]=0x01;
AswinSivakumar 0:6642dad09196 56
AswinSivakumar 1:ac1a9afd8401 57 FXLS8471_cs=0;
AswinSivakumar 1:ac1a9afd8401 58 FXLS8471_spi.write(d[0]);
AswinSivakumar 1:ac1a9afd8401 59 FXLS8471_spi.write(0x00);
AswinSivakumar 1:ac1a9afd8401 60 while(count<7)
AswinSivakumar 1:ac1a9afd8401 61 { data_bytes[count]= FXLS8471_spi.write(0xff); count=count+1;
AswinSivakumar 1:ac1a9afd8401 62 }
AswinSivakumar 1:ac1a9afd8401 63 FXLS8471_cs=1;
AswinSivakumar 1:ac1a9afd8401 64
AswinSivakumar 1:ac1a9afd8401 65 // a_data[0]= ((float)((int16_t)data_bytes[1]));
AswinSivakumar 0:6642dad09196 66 a_data[0] = ((float)((int16_t)(((data_bytes[1]*256) + (data_bytes[2])))>> 4) * 0.0009765);
AswinSivakumar 0:6642dad09196 67 a_data[1] = ((float)((int16_t)(((data_bytes[3]*256) + (data_bytes[4])))>> 4) * 0.0009765);
AswinSivakumar 0:6642dad09196 68 a_data[2] = ((float)((int16_t)(((data_bytes[5]*256) + (data_bytes[6])))>> 4) * 0.0009765);
AswinSivakumar 0:6642dad09196 69
AswinSivakumar 0:6642dad09196 70 }
AswinSivakumar 0:6642dad09196 71
AswinSivakumar 0:6642dad09196 72