Kenji Arai / Mbed OS Keypad_input

test program for keypad(Extended not only 3x4 but 4x4,4x5 and 5x5 keys)

Dependencies:   Keypad

Fork of study_step0 by Team_PjL

see /users/kenjiArai/notebook/keypadkey-matrix--control/

key_4x4.cpp@4:0564f82dd0ef, 2020-08-01 (annotated)

Committer:
kenjiArai
Date:
Sat Aug 01 07:49:39 2020 +0000
Revision:
4:0564f82dd0ef
Parent:
3:0c888cad9376
Child:
5:53fb9eed6b67
changed pc.printf to printf

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 *
kenjiArai 2:aa6fdecebf2b 4 * Copyright (c) 2020 Kenji Arai / JH1PJL
kenjiArai 2:aa6fdecebf2b 5 * http://www7b.biglobe.ne.jp/~kenjia/
kenjiArai 2:aa6fdecebf2b 6 * https://os.mbed.com/users/kenjiArai/
kenjiArai 2:aa6fdecebf2b 7 * Created: April 5th, 2020
kenjiArai 4:0564f82dd0ef 8 * Revised: August 1st, 2020
kenjiArai 2:aa6fdecebf2b 9 */
kenjiArai 2:aa6fdecebf2b 10
kenjiArai 2:aa6fdecebf2b 11 // Pre-selection --------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 12 #include "select_example.h"
kenjiArai 2:aa6fdecebf2b 13 //#define KEY4X4
kenjiArai 2:aa6fdecebf2b 14 #ifdef KEY4X4
kenjiArai 2:aa6fdecebf2b 15
kenjiArai 2:aa6fdecebf2b 16 // Include --------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 17 #include "mbed.h"
kenjiArai 2:aa6fdecebf2b 18 #include "Keypad.h"
kenjiArai 2:aa6fdecebf2b 19
kenjiArai 2:aa6fdecebf2b 20 // Definition -----------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 21
kenjiArai 2:aa6fdecebf2b 22 // Object ---------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 23 DigitalOut my_led(LED1);
kenjiArai 3:0c888cad9376 24 // X Y Z W A B C D OUT(XYZW), IN(ABCD)
kenjiArai 3:0c888cad9376 25 Keypad key(D11, D10, D9, D8, D6, D5, D4, D3);
kenjiArai 2:aa6fdecebf2b 26
kenjiArai 2:aa6fdecebf2b 27 // RAM ------------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 28
kenjiArai 2:aa6fdecebf2b 29 // ROM / Constant data --------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 30 // X*A = *, X*B = 7, X*C = 4, X*D = 1
kenjiArai 2:aa6fdecebf2b 31 // Y*A = 0, Y*B = 8, Y*C = 5, Y*D = 2
kenjiArai 2:aa6fdecebf2b 32 // Z*A = #, Z*B = 9, Z*C = 6, Z*D = 3
kenjiArai 2:aa6fdecebf2b 33 // W*A = A, W*B = B, W*C = C, W*D = D
kenjiArai 2:aa6fdecebf2b 34 // key_table[0]=? is not used!
kenjiArai 2:aa6fdecebf2b 35 const char *const key_table = "?*7410852#963ABCD";
kenjiArai 2:aa6fdecebf2b 36 // 1234567890123456
kenjiArai 2:aa6fdecebf2b 37
kenjiArai 2:aa6fdecebf2b 38 // Function prototypes --------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 39
kenjiArai 2:aa6fdecebf2b 40 //------------------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 41 // Control Program
kenjiArai 2:aa6fdecebf2b 42 //------------------------------------------------------------------------------
kenjiArai 2:aa6fdecebf2b 43 int main()
kenjiArai 2:aa6fdecebf2b 44 {
kenjiArai 2:aa6fdecebf2b 45 uint32_t key_num;
kenjiArai 2:aa6fdecebf2b 46 uint32_t counter = 0;
kenjiArai 2:aa6fdecebf2b 47
kenjiArai 4:0564f82dd0ef 48 printf("Start Key-Pad test 4x4 keys\r\n");
kenjiArai 2:aa6fdecebf2b 49 while(true) {
kenjiArai 2:aa6fdecebf2b 50 while ((key_num = key.read()) != 0) {
kenjiArai 4:0564f82dd0ef 51 printf("%2u:[%2d] %c\r\n",
kenjiArai 2:aa6fdecebf2b 52 counter++, key_num, *(key_table + key_num));
kenjiArai 2:aa6fdecebf2b 53 }
kenjiArai 2:aa6fdecebf2b 54 wait_us(100000);
kenjiArai 2:aa6fdecebf2b 55 }
kenjiArai 2:aa6fdecebf2b 56 }
kenjiArai 2:aa6fdecebf2b 57
kenjiArai 2:aa6fdecebf2b 58 #endif // #ifdef KEY4X4