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comparison Scan/MatrixARM/matrix_scan.c @ 299:c856f826bd49

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Adding DebounceThrottleDiv define to slow down the debounce rate. By default: DebounceThrottleDiv = 0; This is the default infinity behaviour right now (may be changed in the future). Increasing DebounceThrottleDiv will increase the scan rate divider. DebounceThrottleDiv = 1; # Scans half as much DebounceThrottleDiv = 2; # Scans a quarter as much DebounceThrottleDiv = 3; # Scans an eigth as much etc. For ARM based uCs (like the Infinity) the maximum divider is 32.
author Jacob Alexander <haata@kiibohd.com>
date Fri, 06 Mar 2015 22:18:15 -0800
parents 57f40871c726
children e464aaa4730f
comparison
equal deleted inserted replaced
298:39f84a603350 299:c856f826bd49
24 // Compiler Includes 24 // Compiler Includes
25 #include <Lib/ScanLib.h> 25 #include <Lib/ScanLib.h>
26 26
27 // Project Includes 27 // Project Includes
28 #include <cli.h> 28 #include <cli.h>
29 #include <kll.h>
29 #include <led.h> 30 #include <led.h>
30 #include <print.h> 31 #include <print.h>
31 #include <macro.h> 32 #include <macro.h>
32 33
33 // Local Includes 34 // Local Includes
34 #include "matrix_scan.h" 35 #include "matrix_scan.h"
35 36
36 // Matrix Configuration 37 // Matrix Configuration
37 #include <matrix.h> 38 #include <matrix.h>
39
40
41
42 // ----- Defines -----
43
44 #if ( DebounceThrottleDiv_define > 0 )
45 nat_ptr_t Matrix_divCounter = 0;
46 #endif
38 47
39 48
40 49
41 // ----- Function Declarations ----- 50 // ----- Function Declarations -----
42 51
230 239
231 // Scan the matrix for keypresses 240 // Scan the matrix for keypresses
232 // NOTE: scanNum should be reset to 0 after a USB send (to reset all the counters) 241 // NOTE: scanNum should be reset to 0 after a USB send (to reset all the counters)
233 void Matrix_scan( uint16_t scanNum ) 242 void Matrix_scan( uint16_t scanNum )
234 { 243 {
244 #if ( DebounceThrottleDiv_define > 0 )
245 // Scan-rate throttling
246 // By scanning using a divider, the scan rate slowed down
247 // DebounceThrottleDiv_define == 1 means -> /2 or half scan rate
248 // This helps with bouncy switches on fast uCs
249 if ( !( Matrix_divCounter++ & (1 << ( DebounceThrottleDiv_define - 1 )) ) )
250 return;
251 #endif
252
235 // Increment stats counters 253 // Increment stats counters
236 if ( scanNum > matrixMaxScans ) matrixMaxScans = scanNum; 254 if ( scanNum > matrixMaxScans ) matrixMaxScans = scanNum;
237 if ( scanNum == 0 ) 255 if ( scanNum == 0 )
238 { 256 {
239 matrixPrevScans = matrixCurScans; 257 matrixPrevScans = matrixCurScans;