Xavier Gouesnard / Mbed 2 deprecated Assignment_2_XG

Test session

Dependencies:   FatFileSystem MCP23017 WattBob_TextLCD mbed

Fork of Assignment_2_herpe by Xavier Herpe

check_task.cpp@4:48761259552a, 2017-03-14 (annotated)

Committer:
xouf2114
Date:
Tue Mar 14 14:46:43 2017 +0000
Revision:
4:48761259552a
Test of Assignment 2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
xouf2114 4:48761259552a 1 /**
xouf2114 4:48761259552a 2 * The following task checks the digital inputs on pin11 and pin12
xouf2114 4:48761259552a 3 * it also checks for "errors" and save the error code to the state.
xouf2114 4:48761259552a 4 * If pin12 is 1, it schedules the counting task.
xouf2114 4:48761259552a 5 *
xouf2114 4:48761259552a 6 * Author: Jacob Baungard Hansen
xouf2114 4:48761259552a 7 */
xouf2114 4:48761259552a 8
xouf2114 4:48761259552a 9 #include "check_task.h"
xouf2114 4:48761259552a 10
xouf2114 4:48761259552a 11 /**
xouf2114 4:48761259552a 12 *
xouf2114 4:48761259552a 13 * @param starting_offset when the task should but run first
xouf2114 4:48761259552a 14 * @param frequency_ms the frequency in ms of how often the task should run
xouf2114 4:48761259552a 15 */
xouf2114 4:48761259552a 16 CheckTask::CheckTask(int starting_offset, int frequency_ms,
xouf2114 4:48761259552a 17 State * state, TaskManager * tm)
xouf2114 4:48761259552a 18 : Task(starting_offset, frequency_ms) {
xouf2114 4:48761259552a 19
xouf2114 4:48761259552a 20 this->state = state;
xouf2114 4:48761259552a 21 this->tm = tm;
xouf2114 4:48761259552a 22 this->counting_task = new CountingTask(0, 1800);
xouf2114 4:48761259552a 23 this->counting_scheduled = 0;
xouf2114 4:48761259552a 24 this->digital_in_1 = new DigitalIn(p11);
xouf2114 4:48761259552a 25 this->digital_in_2 = new DigitalIn(p12);
xouf2114 4:48761259552a 26
xouf2114 4:48761259552a 27 }
xouf2114 4:48761259552a 28
xouf2114 4:48761259552a 29 /*
xouf2114 4:48761259552a 30 * Simple destructor
xouf2114 4:48761259552a 31 */
xouf2114 4:48761259552a 32 CheckTask::~CheckTask() {
xouf2114 4:48761259552a 33 delete this->counting_task;
xouf2114 4:48761259552a 34 delete this->digital_in_1;
xouf2114 4:48761259552a 35 delete this->digital_in_2;
xouf2114 4:48761259552a 36 }
xouf2114 4:48761259552a 37
xouf2114 4:48761259552a 38 /**
xouf2114 4:48761259552a 39 * The function that is run at the specified frequency.
xouf2114 4:48761259552a 40 */
xouf2114 4:48761259552a 41 void CheckTask::action() {
xouf2114 4:48761259552a 42
xouf2114 4:48761259552a 43 // get the digital values
xouf2114 4:48761259552a 44 int switch_1 = digital_in_1->read();
xouf2114 4:48761259552a 45 int switch_2 = digital_in_2->read();
xouf2114 4:48761259552a 46
xouf2114 4:48761259552a 47 // save to the state
xouf2114 4:48761259552a 48 this->state->set_digital_1(switch_1);
xouf2114 4:48761259552a 49 this->state->set_digital_2(switch_2);
xouf2114 4:48761259552a 50
xouf2114 4:48761259552a 51 // check possible error codes
xouf2114 4:48761259552a 52 if (switch_1 == 1 && (this->state->get_avg_analog_1() > this->state->get_avg_analog_2() ) ) {
xouf2114 4:48761259552a 53 this->state->set_error(3);
xouf2114 4:48761259552a 54 } else {
xouf2114 4:48761259552a 55 this->state->set_error(0);
xouf2114 4:48761259552a 56 }
xouf2114 4:48761259552a 57
xouf2114 4:48761259552a 58 // schedule or deschedule counting task as appropriate
xouf2114 4:48761259552a 59 if (switch_2 == 1 && this->counting_scheduled == 0) {
xouf2114 4:48761259552a 60 // schedule binary LED task
xouf2114 4:48761259552a 61 this->counting_scheduled = 1;
xouf2114 4:48761259552a 62 // set the binary LED task next run
xouf2114 4:48761259552a 63 int next_run = this->get_next_run_ms()+300;
xouf2114 4:48761259552a 64 this->counting_task->set_next_run_ms(next_run);
xouf2114 4:48761259552a 65 // add task to task manager
xouf2114 4:48761259552a 66 this->tm->add_task(this->counting_task);
xouf2114 4:48761259552a 67 } else if (switch_2 == 0) {
xouf2114 4:48761259552a 68 // delete task from task manager
xouf2114 4:48761259552a 69 this->tm->remove_task(this->counting_task);
xouf2114 4:48761259552a 70 this->counting_scheduled = 0;
xouf2114 4:48761259552a 71 }
xouf2114 4:48761259552a 72
xouf2114 4:48761259552a 73 }