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155 lines
1.9 KiB
155 lines
1.9 KiB
#include "bsp_key.h"
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#include "bsp_config_delay.h"
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U8 bsp_key_init(void)
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{
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D_stdIO_P3(BITN6);
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D_stdIO_P1(BITN7);
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D_stdIO_P0(BITN6);
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D_stdIO_P4(BITN3);
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D_HighR_P1(BITN0);
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D_HighR_P0(BITN7);
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D_HighR_P1(BITN3);
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D_HighR_P2(BITN0);
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KR1 = KR2 = KR3 = KR4 = 1;
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KC1 = KC2 = KC3 = KC4 = 1;
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return 0;
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}
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void scan_row(U8 r)
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{
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KR1 = 0;
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KR2 = 0;
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KR3 = 0;
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KR4 = 0;
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switch(r){
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case 1:
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KR1 = 1;break;
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case 2:
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KR2 = 1;break;
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case 3:
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KR3 = 1;break;
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case 4:
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KR4 = 1;break;
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default:
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break;
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}
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}
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U8 scan_col(U8 c)
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{
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if(c == 1)
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{
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if(KC1 == 1)
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{
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delayInMs(10);
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if(KC1 == 1)
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{
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while(KC1 == 1);
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return 1;
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}
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}
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}
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else if(c == 2){
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if(KC2 == 1)
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{
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delayInMs(10);
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if(KC2 == 1)
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{
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while(KC2 == 1);
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return 1;
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}
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}
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}
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else if(c == 3){
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if(KC3 == 1)
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{
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delayInMs(10);
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if(KC3 == 1)
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{
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while(KC3 == 1);
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return 1;
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}
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}
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}
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else if(c == 4){
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if(KC4 == 1)
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{
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delayInMs(10);
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if(KC4 == 1)
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{
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while(KC4 == 1);
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return 1;
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}
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}
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}
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return 0;
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}
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U8 bsp_key_scan(void)
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{
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U8 key = BSP_KEY_NUM_MAX;
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//扫描第1行
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scan_row(1);
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if(scan_col(1) > 0){
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return 0;
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}
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if(scan_col(2) > 0){
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return 1;
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}
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if(scan_col(3) > 0){
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return 2;
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}
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if(scan_col(4) > 0){
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return 3;
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}
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// //扫描第2行
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// scan_row(2);
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// if(scan_col(1) > 0){
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// key = 4;
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// }
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// if(scan_col(2) > 0){
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// key = 5;
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// }
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// if(scan_col(3) > 0){
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// key = 6;
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// }
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// if(scan_col(4) > 0){
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// key = 7;
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// }
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// //扫描第3行
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// scan_row(3);
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// if(scan_col(1) > 0){
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// key = 8;
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// }
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// if(scan_col(2) > 0){
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// key = 9;
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// }
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// if(scan_col(3) > 0){
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// key = 10;
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// }
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// if(scan_col(4) > 0){
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// key = 11;
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// }
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// //扫描第4行
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// scan_row(4);
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// if(scan_col(1) > 0){
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// key = 12;
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// }
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// if(scan_col(2) > 0){
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// key = 13;
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// }
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// if(scan_col(KC3) > 0){
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// key = 14;
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// }
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// if(scan_col(KC4) > 0){
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// key = 15;
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// }
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return key;
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}
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