Production Test Program (PTP) for the LPC4088 Experiment Base Board
Dependencies: EALib I2S LM75B SDFileSystem mbed
TestTrimpot.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 "TestTrimpot.h" |
embeddedartists | 2:2f4b7535ceb3 | 23 | |
embeddedartists | 2:2f4b7535ceb3 | 24 | /****************************************************************************** |
embeddedartists | 2:2f4b7535ceb3 | 25 | * Defines and typedefs |
embeddedartists | 2:2f4b7535ceb3 | 26 | *****************************************************************************/ |
embeddedartists | 2:2f4b7535ceb3 | 27 | |
embeddedartists | 2:2f4b7535ceb3 | 28 | #define MIN_VALUE (0.010f) |
embeddedartists | 2:2f4b7535ceb3 | 29 | #define MAX_VALUE (0.990f) |
embeddedartists | 2:2f4b7535ceb3 | 30 | |
embeddedartists | 2:2f4b7535ceb3 | 31 | /****************************************************************************** |
embeddedartists | 2:2f4b7535ceb3 | 32 | * Public Functions |
embeddedartists | 2:2f4b7535ceb3 | 33 | *****************************************************************************/ |
embeddedartists | 2:2f4b7535ceb3 | 34 | |
embeddedartists | 2:2f4b7535ceb3 | 35 | bool TestTrimpot::runTest() { |
embeddedartists | 2:2f4b7535ceb3 | 36 | AnalogIn trimpot(p15); |
embeddedartists | 2:2f4b7535ceb3 | 37 | bool min = false; |
embeddedartists | 2:2f4b7535ceb3 | 38 | bool max = false; |
embeddedartists | 2:2f4b7535ceb3 | 39 | |
embeddedartists | 2:2f4b7535ceb3 | 40 | printf("Reading trimpot for 5 seconds...\n"); |
embeddedartists | 2:2f4b7535ceb3 | 41 | |
embeddedartists | 2:2f4b7535ceb3 | 42 | // Reads the analog value of the right trimpot every 100ms for |
embeddedartists | 2:2f4b7535ceb3 | 43 | // up to five seconds or until both end limit have been reached. |
embeddedartists | 2:2f4b7535ceb3 | 44 | for (int i = 0; i < 50; i++) { |
embeddedartists | 2:2f4b7535ceb3 | 45 | float f = trimpot.read(); |
embeddedartists | 2:2f4b7535ceb3 | 46 | printf("Trimpot = %.3f\n", f); |
embeddedartists | 2:2f4b7535ceb3 | 47 | if (f < MIN_VALUE) { |
embeddedartists | 2:2f4b7535ceb3 | 48 | min = true; |
embeddedartists | 2:2f4b7535ceb3 | 49 | } else if (f > MAX_VALUE) { |
embeddedartists | 2:2f4b7535ceb3 | 50 | max = true; |
embeddedartists | 2:2f4b7535ceb3 | 51 | } |
embeddedartists | 2:2f4b7535ceb3 | 52 | if (min && max) { |
embeddedartists | 2:2f4b7535ceb3 | 53 | printf("Test passed\n"); |
embeddedartists | 2:2f4b7535ceb3 | 54 | return true; |
embeddedartists | 2:2f4b7535ceb3 | 55 | } |
embeddedartists | 2:2f4b7535ceb3 | 56 | |
embeddedartists | 2:2f4b7535ceb3 | 57 | wait(0.1); |
embeddedartists | 2:2f4b7535ceb3 | 58 | } |
embeddedartists | 2:2f4b7535ceb3 | 59 | printf("Trimpot does not reach limits (%.3f - %.3f)!\n", MIN_VALUE, MAX_VALUE); |
embeddedartists | 2:2f4b7535ceb3 | 60 | return false; |
embeddedartists | 2:2f4b7535ceb3 | 61 | } |
embeddedartists | 2:2f4b7535ceb3 | 62 | |
embeddedartists | 2:2f4b7535ceb3 | 63 |