Tami Farber / microbit-dal

Revised to disable BLE for radio communication as needed.

Dependencies:   BLE_API nRF51822 mbed-dev-bin

Dependents:   microbit

source/core/MicroBitCompat.cpp@74:26717338739d, 2019-11-26 (annotated)

Committer:
tsfarber
Date:
Tue Nov 26 04:12:46 2019 +0000
Revision:
74:26717338739d
Parent:
1:8aa5cdb4ab67 
This program combines samples programs radio TX and radio RX so that both units can send or receive depending on which unit's buttons are pressed. Tested successfully. MicroBitConfig.h has been edited to disable BLE.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jonathan Austin 1:8aa5cdb4ab67 1 /*
Jonathan Austin 1:8aa5cdb4ab67 2 The MIT License (MIT)
Jonathan Austin 1:8aa5cdb4ab67 3
Jonathan Austin 1:8aa5cdb4ab67 4 Copyright (c) 2016 British Broadcasting Corporation.
Jonathan Austin 1:8aa5cdb4ab67 5 This software is provided by Lancaster University by arrangement with the BBC.
Jonathan Austin 1:8aa5cdb4ab67 6
Jonathan Austin 1:8aa5cdb4ab67 7 Permission is hereby granted, free of charge, to any person obtaining a
Jonathan Austin 1:8aa5cdb4ab67 8 copy of this software and associated documentation files (the "Software"),
Jonathan Austin 1:8aa5cdb4ab67 9 to deal in the Software without restriction, including without limitation
Jonathan Austin 1:8aa5cdb4ab67 10 the rights to use, copy, modify, merge, publish, distribute, sublicense,
Jonathan Austin 1:8aa5cdb4ab67 11 and/or sell copies of the Software, and to permit persons to whom the
Jonathan Austin 1:8aa5cdb4ab67 12 Software is furnished to do so, subject to the following conditions:
Jonathan Austin 1:8aa5cdb4ab67 13
Jonathan Austin 1:8aa5cdb4ab67 14 The above copyright notice and this permission notice shall be included in
Jonathan Austin 1:8aa5cdb4ab67 15 all copies or substantial portions of the Software.
Jonathan Austin 1:8aa5cdb4ab67 16
Jonathan Austin 1:8aa5cdb4ab67 17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Jonathan Austin 1:8aa5cdb4ab67 18 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Jonathan Austin 1:8aa5cdb4ab67 19 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
Jonathan Austin 1:8aa5cdb4ab67 20 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Jonathan Austin 1:8aa5cdb4ab67 21 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
Jonathan Austin 1:8aa5cdb4ab67 22 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
Jonathan Austin 1:8aa5cdb4ab67 23 DEALINGS IN THE SOFTWARE.
Jonathan Austin 1:8aa5cdb4ab67 24 */
Jonathan Austin 1:8aa5cdb4ab67 25
Jonathan Austin 1:8aa5cdb4ab67 26 /**
Jonathan Austin 1:8aa5cdb4ab67 27 * This file contains functions used to maintain compatability and portability.
Jonathan Austin 1:8aa5cdb4ab67 28 * It also contains constants that are used elsewhere in the DAL.
Jonathan Austin 1:8aa5cdb4ab67 29 */
Jonathan Austin 1:8aa5cdb4ab67 30 #include "MicroBitConfig.h"
Jonathan Austin 1:8aa5cdb4ab67 31 #include "MicroBitCompat.h"
Jonathan Austin 1:8aa5cdb4ab67 32 #include "ErrorNo.h"
Jonathan Austin 1:8aa5cdb4ab67 33
Jonathan Austin 1:8aa5cdb4ab67 34
Jonathan Austin 1:8aa5cdb4ab67 35 /**
Jonathan Austin 1:8aa5cdb4ab67 36 * Performs an in buffer reverse of a given char array.
Jonathan Austin 1:8aa5cdb4ab67 37 *
Jonathan Austin 1:8aa5cdb4ab67 38 * @param s the string to reverse.
Jonathan Austin 1:8aa5cdb4ab67 39 *
Jonathan Austin 1:8aa5cdb4ab67 40 * @return MICROBIT_OK, or MICROBIT_INVALID_PARAMETER.
Jonathan Austin 1:8aa5cdb4ab67 41 */
Jonathan Austin 1:8aa5cdb4ab67 42 int string_reverse(char *s)
Jonathan Austin 1:8aa5cdb4ab67 43 {
Jonathan Austin 1:8aa5cdb4ab67 44 //sanity check...
Jonathan Austin 1:8aa5cdb4ab67 45 if(s == NULL)
Jonathan Austin 1:8aa5cdb4ab67 46 return MICROBIT_INVALID_PARAMETER;
Jonathan Austin 1:8aa5cdb4ab67 47
Jonathan Austin 1:8aa5cdb4ab67 48 char *j;
Jonathan Austin 1:8aa5cdb4ab67 49 int c;
Jonathan Austin 1:8aa5cdb4ab67 50
Jonathan Austin 1:8aa5cdb4ab67 51 j = s + strlen(s) - 1;
Jonathan Austin 1:8aa5cdb4ab67 52
Jonathan Austin 1:8aa5cdb4ab67 53 while(s < j)
Jonathan Austin 1:8aa5cdb4ab67 54 {
Jonathan Austin 1:8aa5cdb4ab67 55 c = *s;
Jonathan Austin 1:8aa5cdb4ab67 56 *s++ = *j;
Jonathan Austin 1:8aa5cdb4ab67 57 *j-- = c;
Jonathan Austin 1:8aa5cdb4ab67 58 }
Jonathan Austin 1:8aa5cdb4ab67 59
Jonathan Austin 1:8aa5cdb4ab67 60 return MICROBIT_OK;
Jonathan Austin 1:8aa5cdb4ab67 61 }
Jonathan Austin 1:8aa5cdb4ab67 62
Jonathan Austin 1:8aa5cdb4ab67 63 /**
Jonathan Austin 1:8aa5cdb4ab67 64 * Converts a given integer into a string representation.
Jonathan Austin 1:8aa5cdb4ab67 65 *
Jonathan Austin 1:8aa5cdb4ab67 66 * @param n The number to convert.
Jonathan Austin 1:8aa5cdb4ab67 67 *
Jonathan Austin 1:8aa5cdb4ab67 68 * @param s A pointer to the buffer where the resulting string will be stored.
Jonathan Austin 1:8aa5cdb4ab67 69 *
Jonathan Austin 1:8aa5cdb4ab67 70 * @return MICROBIT_OK, or MICROBIT_INVALID_PARAMETER.
Jonathan Austin 1:8aa5cdb4ab67 71 */
Jonathan Austin 1:8aa5cdb4ab67 72 int itoa(int n, char *s)
Jonathan Austin 1:8aa5cdb4ab67 73 {
Jonathan Austin 1:8aa5cdb4ab67 74 int i = 0;
Jonathan Austin 1:8aa5cdb4ab67 75 int positive = (n >= 0);
Jonathan Austin 1:8aa5cdb4ab67 76
Jonathan Austin 1:8aa5cdb4ab67 77 if (s == NULL)
Jonathan Austin 1:8aa5cdb4ab67 78 return MICROBIT_INVALID_PARAMETER;
Jonathan Austin 1:8aa5cdb4ab67 79
Jonathan Austin 1:8aa5cdb4ab67 80 // Record the sign of the number,
Jonathan Austin 1:8aa5cdb4ab67 81 // Ensure our working value is positive.
Jonathan Austin 1:8aa5cdb4ab67 82 if (positive)
Jonathan Austin 1:8aa5cdb4ab67 83 n = -n;
Jonathan Austin 1:8aa5cdb4ab67 84
Jonathan Austin 1:8aa5cdb4ab67 85 // Calculate each character, starting with the LSB.
Jonathan Austin 1:8aa5cdb4ab67 86 do {
Jonathan Austin 1:8aa5cdb4ab67 87 s[i++] = abs(n % 10) + '0';
Jonathan Austin 1:8aa5cdb4ab67 88 } while (abs(n /= 10) > 0);
Jonathan Austin 1:8aa5cdb4ab67 89
Jonathan Austin 1:8aa5cdb4ab67 90 // Add a negative sign as needed
Jonathan Austin 1:8aa5cdb4ab67 91 if (!positive)
Jonathan Austin 1:8aa5cdb4ab67 92 s[i++] = '-';
Jonathan Austin 1:8aa5cdb4ab67 93
Jonathan Austin 1:8aa5cdb4ab67 94 // Terminate the string.
Jonathan Austin 1:8aa5cdb4ab67 95 s[i] = '\0';
Jonathan Austin 1:8aa5cdb4ab67 96
Jonathan Austin 1:8aa5cdb4ab67 97 // Flip the order.
Jonathan Austin 1:8aa5cdb4ab67 98 string_reverse(s);
Jonathan Austin 1:8aa5cdb4ab67 99
Jonathan Austin 1:8aa5cdb4ab67 100 return MICROBIT_OK;
Jonathan Austin 1:8aa5cdb4ab67 101 }