Kenji Arai / Mbed OS Keypad_input

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Dependencies:   Keypad

Fork of study_step0 by Team_PjL

key_3x4.cpp@3:0c888cad9376, 2020-04-13 (annotated)

Committer:
kenjiArai
Date:
Mon Apr 13 02:07:09 2020 +0000
Revision:
3:0c888cad9376
Parent:
2:aa6fdecebf2b
Child:
4:0564f82dd0ef
modified keypad library and changed port assign

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 2:aa6fdecebf2b 1 /*
kenjiArai 2:aa6fdecebf2b 2 * Mbed Application program
kenjiArai 2:aa6fdecebf2b 3 * example:
kenjiArai 2:aa6fdecebf2b 4 * Akizuki AE-KIT45-KEYPAD4X3
kenjiArai 2:aa6fdecebf2b 5 * http://akizukidenshi.com/catalog/g/gK-12229/
kenjiArai 2:aa6fdecebf2b 6 *
kenjiArai 2:aa6fdecebf2b 7 * Copyright (c) 2017,'20 Kenji Arai / JH1PJL
kenjiArai 2:aa6fdecebf2b 8 * http://www7b.biglobe.ne.jp/~kenjia/
kenjiArai 2:aa6fdecebf2b 9 * https://os.mbed.com/users/kenjiArai/
kenjiArai 2:aa6fdecebf2b 10 * Created: September 27th, 2017
kenjiArai 3:0c888cad9376 11 * Revised: April 13th, 2020
kenjiArai 2:aa6fdecebf2b 12 */
kenjiArai 2:aa6fdecebf2b 13
kenjiArai 2:aa6fdecebf2b 14 // Pre-selection --------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 15 #include "select_example.h"
kenjiArai 2:aa6fdecebf2b 16 //#define KEY3X4
kenjiArai 2:aa6fdecebf2b 17 #ifdef KEY3X4
kenjiArai 2:aa6fdecebf2b 18
kenjiArai 2:aa6fdecebf2b 19 // Include --------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 20 #include "mbed.h"
kenjiArai 2:aa6fdecebf2b 21 #include "Keypad.h"
kenjiArai 2:aa6fdecebf2b 22
kenjiArai 2:aa6fdecebf2b 23 // Definition -----------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 24
kenjiArai 2:aa6fdecebf2b 25 // Object ---------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 26 DigitalOut my_led(LED1);
kenjiArai 2:aa6fdecebf2b 27 Serial pc(USBTX,USBRX);
kenjiArai 3:0c888cad9376 28 // X Y Z A B C D OUT(XYZ), IN(ABCD)
kenjiArai 3:0c888cad9376 29 Keypad key(D11, D10, D9, D6, D5, D4, D3);
kenjiArai 2:aa6fdecebf2b 30
kenjiArai 2:aa6fdecebf2b 31 // RAM ------------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 32
kenjiArai 2:aa6fdecebf2b 33 // ROM / Constant data --------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 34 // X*A = *, X*B = 7, X*C = 4, X*D = 1
kenjiArai 2:aa6fdecebf2b 35 // Y*A = 0, Y*B = 8, Y*C = 5, Y*D = 2
kenjiArai 2:aa6fdecebf2b 36 // Z*A = #, Z*B = 9, Z*C = 6, Z*D = 3
kenjiArai 2:aa6fdecebf2b 37 // key_table[0]=? is not used!
kenjiArai 2:aa6fdecebf2b 38 const char *const key_table = "?*7410852#963";
kenjiArai 2:aa6fdecebf2b 39 // 123456789012
kenjiArai 2:aa6fdecebf2b 40
kenjiArai 2:aa6fdecebf2b 41 // Function prototypes --------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 42
kenjiArai 2:aa6fdecebf2b 43 //------------------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 44 // Control Program
kenjiArai 2:aa6fdecebf2b 45 //------------------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 46 int main()
kenjiArai 2:aa6fdecebf2b 47 {
kenjiArai 2:aa6fdecebf2b 48 uint32_t key_num;
kenjiArai 2:aa6fdecebf2b 49 uint32_t counter = 0;
kenjiArai 2:aa6fdecebf2b 50
kenjiArai 3:0c888cad9376 51 pc.printf("Start Key-Pad test 3x4 keys\r\n");
kenjiArai 2:aa6fdecebf2b 52 while(true) {
kenjiArai 2:aa6fdecebf2b 53 while ((key_num = key.read()) != 0) {
kenjiArai 2:aa6fdecebf2b 54 pc.printf("%2u:[%2d] %c\r\n",
kenjiArai 2:aa6fdecebf2b 55 counter++, key_num, *(key_table + key_num));
kenjiArai 2:aa6fdecebf2b 56 }
kenjiArai 2:aa6fdecebf2b 57 wait_us(100000);
kenjiArai 2:aa6fdecebf2b 58 }
kenjiArai 2:aa6fdecebf2b 59 }
kenjiArai 2:aa6fdecebf2b 60
kenjiArai 2:aa6fdecebf2b 61 #endif // #ifdef KEY3X4