EmbeddedArtists AB / Mbed 2 deprecated lpc4088_ebb_ptp

Production Test Program (PTP) for the LPC4088 Experiment Base Board

Dependencies:   EALib I2S LM75B SDFileSystem mbed

TestAcc.cpp@9:eb6086159020, 2014-10-01 (annotated)

Committer:
embeddedartists
Date:
Wed Oct 01 11:16:38 2014 +0000
Revision:
9:eb6086159020
Parent:
2:2f4b7535ceb3 
Updated used libraries

Who changed what in which revision?

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embeddedartists 2:2f4b7535ceb3 1 /*
embeddedartists 2:2f4b7535ceb3 2 * Copyright 2013 Embedded Artists AB
embeddedartists 2:2f4b7535ceb3 3 *
embeddedartists 2:2f4b7535ceb3 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 2:2f4b7535ceb3 5 * you may not use this file except in compliance with the License.
embeddedartists 2:2f4b7535ceb3 6 * You may obtain a copy of the License at
embeddedartists 2:2f4b7535ceb3 7 *
embeddedartists 2:2f4b7535ceb3 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 2:2f4b7535ceb3 9 *
embeddedartists 2:2f4b7535ceb3 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 2:2f4b7535ceb3 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 2:2f4b7535ceb3 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 2:2f4b7535ceb3 13 * See the License for the specific language governing permissions and
embeddedartists 2:2f4b7535ceb3 14 * limitations under the License.
embeddedartists 2:2f4b7535ceb3 15 */
embeddedartists 2:2f4b7535ceb3 16
embeddedartists 2:2f4b7535ceb3 17 /******************************************************************************
embeddedartists 2:2f4b7535ceb3 18 * Includes
embeddedartists 2:2f4b7535ceb3 19 *****************************************************************************/
embeddedartists 2:2f4b7535ceb3 20
embeddedartists 2:2f4b7535ceb3 21 #include "mbed.h"
embeddedartists 2:2f4b7535ceb3 22 #include "TestAcc.h"
embeddedartists 2:2f4b7535ceb3 23 #include "MMA7455.h"
embeddedartists 2:2f4b7535ceb3 24
embeddedartists 2:2f4b7535ceb3 25 /******************************************************************************
embeddedartists 2:2f4b7535ceb3 26 * Defines and typedefs
embeddedartists 2:2f4b7535ceb3 27 *****************************************************************************/
embeddedartists 2:2f4b7535ceb3 28
embeddedartists 2:2f4b7535ceb3 29 #define ACC_XMIN (1<<0)
embeddedartists 2:2f4b7535ceb3 30 #define ACC_XMAX (1<<1)
embeddedartists 2:2f4b7535ceb3 31 #define ACC_YMIN (1<<2)
embeddedartists 2:2f4b7535ceb3 32 #define ACC_YMAX (1<<3)
embeddedartists 2:2f4b7535ceb3 33 #define ACC_ZMIN (1<<4)
embeddedartists 2:2f4b7535ceb3 34 #define ACC_ZMAX (1<<5)
embeddedartists 2:2f4b7535ceb3 35
embeddedartists 2:2f4b7535ceb3 36 #define ACC_MIN_LIMIT (-50)
embeddedartists 2:2f4b7535ceb3 37 #define ACC_MAX_LIMIT ( 50)
embeddedartists 2:2f4b7535ceb3 38
embeddedartists 2:2f4b7535ceb3 39 #define ACC_THRESHOLD (2)
embeddedartists 2:2f4b7535ceb3 40
embeddedartists 2:2f4b7535ceb3 41 /******************************************************************************
embeddedartists 2:2f4b7535ceb3 42 * Public Functions
embeddedartists 2:2f4b7535ceb3 43 *****************************************************************************/
embeddedartists 2:2f4b7535ceb3 44
embeddedartists 2:2f4b7535ceb3 45 /*
embeddedartists 2:2f4b7535ceb3 46 Prerequisites:
embeddedartists 2:2f4b7535ceb3 47
embeddedartists 2:2f4b7535ceb3 48 - For this test to work jumpers JP8 and JP9 on the LPC4088 Experiment Base Board
embeddedartists 2:2f4b7535ceb3 49 must both be in positions 1-2
embeddedartists 2:2f4b7535ceb3 50 */
embeddedartists 2:2f4b7535ceb3 51
embeddedartists 2:2f4b7535ceb3 52 bool TestAcc::runTest() {
embeddedartists 2:2f4b7535ceb3 53 MMA7455 sensor(P0_27, P0_28);
embeddedartists 2:2f4b7535ceb3 54
embeddedartists 2:2f4b7535ceb3 55 // Initialize the accelerometer
embeddedartists 2:2f4b7535ceb3 56 if (!sensor.setMode(MMA7455::ModeMeasurement)) {
embeddedartists 2:2f4b7535ceb3 57 printf("Unable to set mode for MMA7455!\n");
embeddedartists 2:2f4b7535ceb3 58 return false;
embeddedartists 2:2f4b7535ceb3 59 }
embeddedartists 2:2f4b7535ceb3 60
embeddedartists 2:2f4b7535ceb3 61 // Calibrate it. It does not matter if it is on a level surface
embeddedartists 2:2f4b7535ceb3 62 // as this test is only interested in relative values.
embeddedartists 2:2f4b7535ceb3 63 if (!sensor.calibrate()) {
embeddedartists 2:2f4b7535ceb3 64 printf("Failed to calibrate MMA7455!\n");
embeddedartists 2:2f4b7535ceb3 65 return false;
embeddedartists 2:2f4b7535ceb3 66 }
embeddedartists 2:2f4b7535ceb3 67
embeddedartists 2:2f4b7535ceb3 68 int val[3] = { 0, 0, 0};
embeddedartists 2:2f4b7535ceb3 69 int max[3] = {-1000,-1000,-1000};
embeddedartists 2:2f4b7535ceb3 70 int min[3] = { 1000, 1000, 1000};
embeddedartists 2:2f4b7535ceb3 71 int i;
embeddedartists 2:2f4b7535ceb3 72 Timer t;
embeddedartists 2:2f4b7535ceb3 73 t.start();
embeddedartists 2:2f4b7535ceb3 74
embeddedartists 2:2f4b7535ceb3 75 // Read the x, y and z values every 100ms for up to five seconds.
embeddedartists 2:2f4b7535ceb3 76 // When the accelerometer is working those values will sightly vary
embeddedartists 2:2f4b7535ceb3 77 // even if the board is still. When a ACC_THRESHOLD difference has
embeddedartists 2:2f4b7535ceb3 78 // been detected in each of the three axis the test is considered
embeddedartists 2:2f4b7535ceb3 79 // successful.
embeddedartists 2:2f4b7535ceb3 80 while (t.read() < 5) {
embeddedartists 2:2f4b7535ceb3 81 if (!sensor.read(val[0], val[1], val[2])) {
embeddedartists 2:2f4b7535ceb3 82 printf("Failed to read accelerometer data!\n");
embeddedartists 2:2f4b7535ceb3 83 return false;
embeddedartists 2:2f4b7535ceb3 84 }
embeddedartists 2:2f4b7535ceb3 85 printf("ACC: x,y,z = {%5d, %5d, %5d}\n", val[0], val[1], val[2]);
embeddedartists 2:2f4b7535ceb3 86 for (i = 0; i < 3; i++) {
embeddedartists 2:2f4b7535ceb3 87 if (val[i] < min[i]) {
embeddedartists 2:2f4b7535ceb3 88 min[i] = val[i];
embeddedartists 2:2f4b7535ceb3 89 }
embeddedartists 2:2f4b7535ceb3 90 if (val[i] > max[i]) {
embeddedartists 2:2f4b7535ceb3 91 max[i] = val[i];
embeddedartists 2:2f4b7535ceb3 92 }
embeddedartists 2:2f4b7535ceb3 93 }
embeddedartists 2:2f4b7535ceb3 94 for (i = 0; i < 3; i++) {
embeddedartists 2:2f4b7535ceb3 95 if ((max[i] - min[i]) < ACC_THRESHOLD) {
embeddedartists 2:2f4b7535ceb3 96 break;
embeddedartists 2:2f4b7535ceb3 97 }
embeddedartists 2:2f4b7535ceb3 98 if (i == 2) {
embeddedartists 2:2f4b7535ceb3 99 printf("All three axis work\n");
embeddedartists 2:2f4b7535ceb3 100 return true;
embeddedartists 2:2f4b7535ceb3 101 }
embeddedartists 2:2f4b7535ceb3 102 }
embeddedartists 2:2f4b7535ceb3 103 wait(0.1);
embeddedartists 2:2f4b7535ceb3 104 }
embeddedartists 2:2f4b7535ceb3 105 printf("Accelerometer data invalid\n");
embeddedartists 2:2f4b7535ceb3 106 printf("Not enough variation X {%d..%d}, Y {%d..%d}, Z {%d..%d}!\n",
embeddedartists 2:2f4b7535ceb3 107 min[0], max[0], min[1], max[1], min[2], max[2]);
embeddedartists 2:2f4b7535ceb3 108 return false;
embeddedartists 2:2f4b7535ceb3 109 }
embeddedartists 2:2f4b7535ceb3 110
embeddedartists 2:2f4b7535ceb3 111 bool TestAcc::alternativeTest() {
embeddedartists 2:2f4b7535ceb3 112 MMA7455 sensor(P0_27, P0_28);
embeddedartists 2:2f4b7535ceb3 113
embeddedartists 2:2f4b7535ceb3 114 // Initialize the accelerometer
embeddedartists 2:2f4b7535ceb3 115 if (!sensor.setMode(MMA7455::ModeMeasurement)) {
embeddedartists 2:2f4b7535ceb3 116 printf("Unable to set mode for MMA7455!\n");
embeddedartists 2:2f4b7535ceb3 117 return false;
embeddedartists 2:2f4b7535ceb3 118 }
embeddedartists 2:2f4b7535ceb3 119
embeddedartists 2:2f4b7535ceb3 120 // Calibrate it. The board must be on a flat surface
embeddedartists 2:2f4b7535ceb3 121 // during calibration!
embeddedartists 2:2f4b7535ceb3 122 if (!sensor.calibrate()) {
embeddedartists 2:2f4b7535ceb3 123 printf("Failed to calibrate MMA7455!\n");
embeddedartists 2:2f4b7535ceb3 124 return false;
embeddedartists 2:2f4b7535ceb3 125 }
embeddedartists 2:2f4b7535ceb3 126
embeddedartists 2:2f4b7535ceb3 127 printf("Now tilt the board in all directions (max 10 seconds)...\n");
embeddedartists 2:2f4b7535ceb3 128 int x=0, y=0, z=0;
embeddedartists 2:2f4b7535ceb3 129 uint8_t done = 0;
embeddedartists 2:2f4b7535ceb3 130 char msg[30] = {0};
embeddedartists 2:2f4b7535ceb3 131
embeddedartists 2:2f4b7535ceb3 132 Timer t;
embeddedartists 2:2f4b7535ceb3 133 t.start();
embeddedartists 2:2f4b7535ceb3 134
embeddedartists 2:2f4b7535ceb3 135 // Read the x, y and z values every 100ms for up to ten seconds.
embeddedartists 2:2f4b7535ceb3 136 // Lift and tilt the board along all axis and look at the printed
embeddedartists 2:2f4b7535ceb3 137 // output. There are ACC_MIN_LIMIT and ACC_MAX_LIMIT limits and
embeddedartists 2:2f4b7535ceb3 138 // as the value of an axis passes that limit it is printed and
embeddedartists 2:2f4b7535ceb3 139 // if all six limits (min/max for x,y and z) are passed within the
embeddedartists 2:2f4b7535ceb3 140 // time limit the test is considered successful.
embeddedartists 2:2f4b7535ceb3 141 while ((t.read() < 10) && (done != 0x3f)) {
embeddedartists 2:2f4b7535ceb3 142 if (!sensor.read(x, y, z)) {
embeddedartists 2:2f4b7535ceb3 143 printf("Failed to read accelerometer data!\n");
embeddedartists 2:2f4b7535ceb3 144 return false;
embeddedartists 2:2f4b7535ceb3 145 }
embeddedartists 2:2f4b7535ceb3 146 printf("ACC: x,y,z = {%5d, %5d, %5d} %s\n", x, y, z, msg);
embeddedartists 2:2f4b7535ceb3 147 if ((x < ACC_MIN_LIMIT) && !(done & ACC_XMIN)) {
embeddedartists 2:2f4b7535ceb3 148 done |= ACC_XMIN;
embeddedartists 2:2f4b7535ceb3 149 printf("Tilted XMIN\n");
embeddedartists 2:2f4b7535ceb3 150 } else if ((x > ACC_MAX_LIMIT) && !(done & ACC_XMAX)) {
embeddedartists 2:2f4b7535ceb3 151 done |= ACC_XMAX;
embeddedartists 2:2f4b7535ceb3 152 printf("Tilted XMAX\n");
embeddedartists 2:2f4b7535ceb3 153 }
embeddedartists 2:2f4b7535ceb3 154 if ((y < ACC_MIN_LIMIT) && !(done & ACC_YMIN)) {
embeddedartists 2:2f4b7535ceb3 155 done |= ACC_YMIN;
embeddedartists 2:2f4b7535ceb3 156 printf("Tilted YMIN\n");
embeddedartists 2:2f4b7535ceb3 157 } else if ((y > ACC_MAX_LIMIT) && !(done & ACC_YMAX)) {
embeddedartists 2:2f4b7535ceb3 158 done |= ACC_YMAX;
embeddedartists 2:2f4b7535ceb3 159 printf("Tilted XMAX\n");
embeddedartists 2:2f4b7535ceb3 160 }
embeddedartists 2:2f4b7535ceb3 161 if ((z < ACC_MIN_LIMIT) && !(done & ACC_ZMIN)) {
embeddedartists 2:2f4b7535ceb3 162 done |= ACC_ZMIN;
embeddedartists 2:2f4b7535ceb3 163 printf("Tilted ZMIN\n");
embeddedartists 2:2f4b7535ceb3 164 } else if ((z > ACC_MAX_LIMIT) && !(done & ACC_ZMAX)) {
embeddedartists 2:2f4b7535ceb3 165 done |= ACC_ZMAX;
embeddedartists 2:2f4b7535ceb3 166 printf("Tilted ZMAX\n");
embeddedartists 2:2f4b7535ceb3 167 }
embeddedartists 2:2f4b7535ceb3 168 wait(0.1);
embeddedartists 2:2f4b7535ceb3 169 }
embeddedartists 2:2f4b7535ceb3 170 printf("Done with ACC tests!\n");
embeddedartists 2:2f4b7535ceb3 171 return (t.read() < 10);
embeddedartists 2:2f4b7535ceb3 172 }
embeddedartists 2:2f4b7535ceb3 173