Mark Gottscho / UtilityLib

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of UtilityLib by Mark Gottscho

Utility.cpp@0:cc61e9d1c295, 2014-02-18 (annotated)

Committer:
mgottscho
Date:
Tue Feb 18 22:19:16 2014 +0000
Revision:
0:cc61e9d1c295
Child:
1:2a3bbec22035
Globally useful utilities on the mbed.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mgottscho 0:cc61e9d1c295 1 /* Utility.cpp
mgottscho 0:cc61e9d1c295 2 * Tested with mbed board: FRDM-KL46Z
mgottscho 0:cc61e9d1c295 3 * Author: Mark Gottscho
mgottscho 0:cc61e9d1c295 4 * mgottscho@ucla.edu
mgottscho 0:cc61e9d1c295 5 */
mgottscho 0:cc61e9d1c295 6
mgottscho 0:cc61e9d1c295 7 #include "mbed.h"
mgottscho 0:cc61e9d1c295 8 #include <string>
mgottscho 0:cc61e9d1c295 9 #include "Utility.h"
mgottscho 0:cc61e9d1c295 10
mgottscho 0:cc61e9d1c295 11 using namespace std;
mgottscho 0:cc61e9d1c295 12
mgottscho 0:cc61e9d1c295 13 Utility::Utility(PinName green_led_pin, PinName red_led_pin, PinName serial_tx_pin, PinName serial_rx_pin) :
mgottscho 0:cc61e9d1c295 14 console(serial_tx_pin, serial_rx_pin),
mgottscho 0:cc61e9d1c295 15 __green_led(green_led_pin),
mgottscho 0:cc61e9d1c295 16 __green_led_interrupt(),
mgottscho 0:cc61e9d1c295 17 __red_led(red_led_pin),
mgottscho 0:cc61e9d1c295 18 __red_led_interrupt() {
mgottscho 0:cc61e9d1c295 19 }
mgottscho 0:cc61e9d1c295 20
mgottscho 0:cc61e9d1c295 21 Utility::~Utility() { }
mgottscho 0:cc61e9d1c295 22
mgottscho 0:cc61e9d1c295 23
mgottscho 0:cc61e9d1c295 24 void Utility::panic(string errorMessage, int errorCode) {
mgottscho 0:cc61e9d1c295 25 //We're dead. This is the point of no return! Permanently ignore interrupts.
mgottscho 0:cc61e9d1c295 26 __disable_irq();
mgottscho 0:cc61e9d1c295 27
mgottscho 0:cc61e9d1c295 28 console.printf(">>> PANIC, CODE # %d: %s <<<\r\n", errorCode, errorMessage);
mgottscho 0:cc61e9d1c295 29
mgottscho 0:cc61e9d1c295 30 __green_led = 1;
mgottscho 0:cc61e9d1c295 31 __red_led = 0;
mgottscho 0:cc61e9d1c295 32
mgottscho 0:cc61e9d1c295 33 volatile uint32_t fake = 0;
mgottscho 0:cc61e9d1c295 34 while(1) { fake = 0; } //Spinloop for eternity
mgottscho 0:cc61e9d1c295 35 }
mgottscho 0:cc61e9d1c295 36
mgottscho 0:cc61e9d1c295 37 void Utility::warn(string errorMessage, int errorCode) {
mgottscho 0:cc61e9d1c295 38 console.printf(">>> WARN, CODE # %d: %s <<<\r\n", errorCode, errorMessage);
mgottscho 0:cc61e9d1c295 39 }
mgottscho 0:cc61e9d1c295 40
mgottscho 0:cc61e9d1c295 41 #ifdef NDEBUG
mgottscho 0:cc61e9d1c295 42 void Utility::myAssert(bool condition, const char *file, const unsigned long line) { }
mgottscho 0:cc61e9d1c295 43 #else
mgottscho 0:cc61e9d1c295 44 void Utility::myAssert(bool condition, const char *file, const unsigned long line) {
mgottscho 0:cc61e9d1c295 45 if (!condition)
mgottscho 0:cc61e9d1c295 46 {
mgottscho 0:cc61e9d1c295 47 char msg[256];
mgottscho 0:cc61e9d1c295 48 sprintf(msg, "Assertion failed at file %s, line %d", file, line);
mgottscho 0:cc61e9d1c295 49 panic(msg, -1); \
mgottscho 0:cc61e9d1c295 50 }
mgottscho 0:cc61e9d1c295 51 }
mgottscho 0:cc61e9d1c295 52 #endif
mgottscho 0:cc61e9d1c295 53
mgottscho 0:cc61e9d1c295 54 void Utility::blinkGreen(bool enable, float half_period) {
mgottscho 0:cc61e9d1c295 55 if (enable) {
mgottscho 0:cc61e9d1c295 56 if (half_period <= 0) {
mgottscho 0:cc61e9d1c295 57 __green_led_interrupt.detach();
mgottscho 0:cc61e9d1c295 58 __green_led = 0;
mgottscho 0:cc61e9d1c295 59 } else if (half_period <= 1800)
mgottscho 0:cc61e9d1c295 60 __green_led_interrupt.attach(this, &Utility::__greenLED_ISR, half_period);
mgottscho 0:cc61e9d1c295 61 }
mgottscho 0:cc61e9d1c295 62 else {
mgottscho 0:cc61e9d1c295 63 __green_led_interrupt.detach();
mgottscho 0:cc61e9d1c295 64 __green_led = 1;
mgottscho 0:cc61e9d1c295 65 }
mgottscho 0:cc61e9d1c295 66 }
mgottscho 0:cc61e9d1c295 67
mgottscho 0:cc61e9d1c295 68 void Utility::blinkRed(bool enable, float half_period) {
mgottscho 0:cc61e9d1c295 69 if (enable) {
mgottscho 0:cc61e9d1c295 70 if (half_period <= 0) {
mgottscho 0:cc61e9d1c295 71 __red_led_interrupt.detach();
mgottscho 0:cc61e9d1c295 72 __red_led = 0;
mgottscho 0:cc61e9d1c295 73 } else if (half_period <= 1800)
mgottscho 0:cc61e9d1c295 74 __red_led_interrupt.attach(this, &Utility::__redLED_ISR, half_period);
mgottscho 0:cc61e9d1c295 75 }
mgottscho 0:cc61e9d1c295 76 else {
mgottscho 0:cc61e9d1c295 77 __red_led_interrupt.detach();
mgottscho 0:cc61e9d1c295 78 __red_led = 1;
mgottscho 0:cc61e9d1c295 79 }
mgottscho 0:cc61e9d1c295 80 }
mgottscho 0:cc61e9d1c295 81
mgottscho 0:cc61e9d1c295 82 void Utility::__greenLED_ISR() {
mgottscho 0:cc61e9d1c295 83 if (__green_led == 0) //Just flip the LED status every time we are called
mgottscho 0:cc61e9d1c295 84 __green_led = 1;
mgottscho 0:cc61e9d1c295 85 else
mgottscho 0:cc61e9d1c295 86 __green_led = 0;
mgottscho 0:cc61e9d1c295 87 }
mgottscho 0:cc61e9d1c295 88
mgottscho 0:cc61e9d1c295 89 void Utility::__redLED_ISR() {
mgottscho 0:cc61e9d1c295 90 if (__red_led == 0) //Just flip the LED status every time we are called
mgottscho 0:cc61e9d1c295 91 __red_led = 1;
mgottscho 0:cc61e9d1c295 92 else
mgottscho 0:cc61e9d1c295 93 __red_led = 0;
mgottscho 0:cc61e9d1c295 94 }