Basic fading in and out of leds with light sensor.

Dependencies:   mbed

Committer:
mturner5
Date:
Mon Sep 19 03:24:58 2016 +0000
Revision:
0:cf7af2656659
Basic v1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mturner5 0:cf7af2656659 1 /* mbed Microcontroller Library
mturner5 0:cf7af2656659 2 * Copyright (c) 2006-2013 ARM Limited
mturner5 0:cf7af2656659 3 *
mturner5 0:cf7af2656659 4 * Licensed under the Apache License, Version 2.0 (the "License");
mturner5 0:cf7af2656659 5 * you may not use this file except in compliance with the License.
mturner5 0:cf7af2656659 6 * You may obtain a copy of the License at
mturner5 0:cf7af2656659 7 *
mturner5 0:cf7af2656659 8 * http://www.apache.org/licenses/LICENSE-2.0
mturner5 0:cf7af2656659 9 *
mturner5 0:cf7af2656659 10 * Unless required by applicable law or agreed to in writing, software
mturner5 0:cf7af2656659 11 * distributed under the License is distributed on an "AS IS" BASIS,
mturner5 0:cf7af2656659 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mturner5 0:cf7af2656659 13 * See the License for the specific language governing permissions and
mturner5 0:cf7af2656659 14 * limitations under the License.
mturner5 0:cf7af2656659 15 */
mturner5 0:cf7af2656659 16 #ifndef MBED_ERROR_H
mturner5 0:cf7af2656659 17 #define MBED_ERROR_H
mturner5 0:cf7af2656659 18
mturner5 0:cf7af2656659 19 /** To generate a fatal compile-time error, you can use the pre-processor #error directive.
mturner5 0:cf7af2656659 20 *
mturner5 0:cf7af2656659 21 * @code
mturner5 0:cf7af2656659 22 * #error "That shouldn't have happened!"
mturner5 0:cf7af2656659 23 * @endcode
mturner5 0:cf7af2656659 24 *
mturner5 0:cf7af2656659 25 * If the compiler evaluates this line, it will report the error and stop the compile.
mturner5 0:cf7af2656659 26 *
mturner5 0:cf7af2656659 27 * For example, you could use this to check some user-defined compile-time variables:
mturner5 0:cf7af2656659 28 *
mturner5 0:cf7af2656659 29 * @code
mturner5 0:cf7af2656659 30 * #define NUM_PORTS 7
mturner5 0:cf7af2656659 31 * #if (NUM_PORTS > 4)
mturner5 0:cf7af2656659 32 * #error "NUM_PORTS must be less than 4"
mturner5 0:cf7af2656659 33 * #endif
mturner5 0:cf7af2656659 34 * @endcode
mturner5 0:cf7af2656659 35 *
mturner5 0:cf7af2656659 36 * Reporting Run-Time Errors:
mturner5 0:cf7af2656659 37 * To generate a fatal run-time error, you can use the mbed error() function.
mturner5 0:cf7af2656659 38 *
mturner5 0:cf7af2656659 39 * @code
mturner5 0:cf7af2656659 40 * error("That shouldn't have happened!");
mturner5 0:cf7af2656659 41 * @endcode
mturner5 0:cf7af2656659 42 *
mturner5 0:cf7af2656659 43 * If the mbed running the program executes this function, it will print the
mturner5 0:cf7af2656659 44 * message via the USB serial port, and then die with the blue lights of death!
mturner5 0:cf7af2656659 45 *
mturner5 0:cf7af2656659 46 * The message can use printf-style formatting, so you can report variables in the
mturner5 0:cf7af2656659 47 * message too. For example, you could use this to check a run-time condition:
mturner5 0:cf7af2656659 48 *
mturner5 0:cf7af2656659 49 * @code
mturner5 0:cf7af2656659 50 * if(x >= 5) {
mturner5 0:cf7af2656659 51 * error("expected x to be less than 5, but got %d", x);
mturner5 0:cf7af2656659 52 * }
mturner5 0:cf7af2656659 53 * #endcode
mturner5 0:cf7af2656659 54 */
mturner5 0:cf7af2656659 55
mturner5 0:cf7af2656659 56 #ifdef __cplusplus
mturner5 0:cf7af2656659 57 extern "C" {
mturner5 0:cf7af2656659 58 #endif
mturner5 0:cf7af2656659 59
mturner5 0:cf7af2656659 60 void error(const char* format, ...);
mturner5 0:cf7af2656659 61
mturner5 0:cf7af2656659 62 #ifdef __cplusplus
mturner5 0:cf7af2656659 63 }
mturner5 0:cf7af2656659 64 #endif
mturner5 0:cf7af2656659 65
mturner5 0:cf7af2656659 66 #endif