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comparison Scan/MatrixARM/matrix_scan.h @ 343:e464aaa4730f

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Adding timing based debounce code - Uses expiry timer to decide on when to allow a state change - Initial state transitions are unaffected - Use MinDebounceTime define in kll to configure - ms granularity
author Jacob Alexander <haata@kiibohd.com>
date Fri, 19 Jun 2015 01:50:56 -0700
parents 66eccdd9ced5
children 293154e4aafe
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342:b29c291ad130 343:e464aaa4730f
36 #define DebounceCounter uint16_t 36 #define DebounceCounter uint16_t
37 #elif ( DebounceDivThreshold_define < 0xFFFFFFFF + 1 ) 37 #elif ( DebounceDivThreshold_define < 0xFFFFFFFF + 1 )
38 #define DebounceCounter uint32_t 38 #define DebounceCounter uint32_t
39 #else 39 #else
40 #error "Debounce threshold is too high... 32 bit max. Check .kll defines." 40 #error "Debounce threshold is too high... 32 bit max. Check .kll defines."
41 #endif
42
43 #if ( MinDebounceTime_define > 0xFF )
44 #error "MinDebounceTime is a maximum of 255 ms"
45 #elif ( MinDebounceTime_define < 0x00 )
46 #error "MinDebounceTime is a minimum 0 ms"
41 #endif 47 #endif
42 48
43 49
44 50
45 // ----- Enums ----- 51 // ----- Enums -----
124 Pin pin; 130 Pin pin;
125 } GPIO_Pin; 131 } GPIO_Pin;
126 132
127 // Debounce Element 133 // Debounce Element
128 typedef struct KeyState { 134 typedef struct KeyState {
135 DebounceCounter activeCount;
136 DebounceCounter inactiveCount;
129 KeyPosition prevState; 137 KeyPosition prevState;
130 KeyPosition curState; 138 KeyPosition curState;
131 DebounceCounter activeCount; 139 uint8_t prevDecisionTime;
132 DebounceCounter inactiveCount; 140 } __attribute__((packed)) KeyState;
133 } KeyState;
134 141
135 142
136 143
137 // ----- Functions ----- 144 // ----- Functions -----
138 145