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Production Test Program (PTP) for the LPC4088 Experiment Base Board
Dependencies: EALib I2S LM75B SDFileSystem mbed
TestTemperature.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?
User | Revision | Line number | New contents of line |
---|---|---|---|
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 "TestTemperature.h" |
embeddedartists | 2:2f4b7535ceb3 | 23 | #include "LM75B.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 MIN_TEMP (15.0f) |
embeddedartists | 2:2f4b7535ceb3 | 30 | #define MAX_TEMP (45.0f) |
embeddedartists | 2:2f4b7535ceb3 | 31 | |
embeddedartists | 2:2f4b7535ceb3 | 32 | /****************************************************************************** |
embeddedartists | 2:2f4b7535ceb3 | 33 | * Public Functions |
embeddedartists | 2:2f4b7535ceb3 | 34 | *****************************************************************************/ |
embeddedartists | 2:2f4b7535ceb3 | 35 | |
embeddedartists | 2:2f4b7535ceb3 | 36 | /* |
embeddedartists | 2:2f4b7535ceb3 | 37 | Prerequisites: |
embeddedartists | 2:2f4b7535ceb3 | 38 | |
embeddedartists | 2:2f4b7535ceb3 | 39 | - For this test to work jumpers JP8 and JP9 on the LPC4088 Experiment Base Board |
embeddedartists | 2:2f4b7535ceb3 | 40 | must both be in positions 1-2 |
embeddedartists | 2:2f4b7535ceb3 | 41 | */ |
embeddedartists | 2:2f4b7535ceb3 | 42 | |
embeddedartists | 2:2f4b7535ceb3 | 43 | bool TestTemperature::runTest() { |
embeddedartists | 2:2f4b7535ceb3 | 44 | //Create an LM75B object at 0x92/0x93 (ADDRESS_1) |
embeddedartists | 2:2f4b7535ceb3 | 45 | LM75B sensor(P0_27, P0_28, LM75B::ADDRESS_1); |
embeddedartists | 2:2f4b7535ceb3 | 46 | |
embeddedartists | 2:2f4b7535ceb3 | 47 | printf("Testing LM75 temperature sensor...\n"); |
embeddedartists | 2:2f4b7535ceb3 | 48 | |
embeddedartists | 2:2f4b7535ceb3 | 49 | // Test waits up to 5 seconds, sampling the temperature twice per second, |
embeddedartists | 2:2f4b7535ceb3 | 50 | // for the sensor to produce a value in the MIN_TEMP to MAX_TEMP range. |
embeddedartists | 2:2f4b7535ceb3 | 51 | |
embeddedartists | 2:2f4b7535ceb3 | 52 | if (sensor.open()) { |
embeddedartists | 2:2f4b7535ceb3 | 53 | printf("LM75 Device detected!\n"); |
embeddedartists | 2:2f4b7535ceb3 | 54 | |
embeddedartists | 2:2f4b7535ceb3 | 55 | int i = 10; |
embeddedartists | 2:2f4b7535ceb3 | 56 | while (i--) { |
embeddedartists | 2:2f4b7535ceb3 | 57 | float f = (float)sensor; |
embeddedartists | 2:2f4b7535ceb3 | 58 | |
embeddedartists | 2:2f4b7535ceb3 | 59 | printf("Temp = %.3f\n", f); |
embeddedartists | 2:2f4b7535ceb3 | 60 | |
embeddedartists | 2:2f4b7535ceb3 | 61 | if ((f >= MIN_TEMP) && (f <= MAX_TEMP)) { |
embeddedartists | 2:2f4b7535ceb3 | 62 | printf("Temp in %.3f..%.3f range - test passed\n", MIN_TEMP, MAX_TEMP); |
embeddedartists | 2:2f4b7535ceb3 | 63 | return true; |
embeddedartists | 2:2f4b7535ceb3 | 64 | } |
embeddedartists | 2:2f4b7535ceb3 | 65 | |
embeddedartists | 2:2f4b7535ceb3 | 66 | //Sleep for 0.5 seconds |
embeddedartists | 2:2f4b7535ceb3 | 67 | wait(0.5); |
embeddedartists | 2:2f4b7535ceb3 | 68 | } |
embeddedartists | 2:2f4b7535ceb3 | 69 | if (i == 0) { |
embeddedartists | 2:2f4b7535ceb3 | 70 | printf("LM75 No temp in range %.3f..%.3f!\n", MIN_TEMP, MAX_TEMP); |
embeddedartists | 2:2f4b7535ceb3 | 71 | } |
embeddedartists | 2:2f4b7535ceb3 | 72 | } else { |
embeddedartists | 2:2f4b7535ceb3 | 73 | printf("LM75 Device not detected!\n"); |
embeddedartists | 2:2f4b7535ceb3 | 74 | } |
embeddedartists | 2:2f4b7535ceb3 | 75 | return false; |
embeddedartists | 2:2f4b7535ceb3 | 76 | } |
embeddedartists | 2:2f4b7535ceb3 | 77 | |
embeddedartists | 2:2f4b7535ceb3 | 78 |