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} eGreyCode;
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} eGreyCode;
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typedef struct {
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typedef struct {
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GPIO_TypeDef * GPIO;
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GPIO_TypeDef * GPIO;
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uint16_t Pin;
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uint16_t Pin;
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uint16_t Debounce;
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} sGPIOPin;
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} sGPIOPin;
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volatile int dial_pos[MAX_DIALS];
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volatile int dial_pos[MAX_DIALS];
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volatile int dial_last[MAX_DIALS]; // previous debounced switch position
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volatile int dial_last[MAX_DIALS]; // previous debounced switch position
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volatile static int sw_newstate[MAX_SWITCHES]; //< debounced switch state
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volatile static int sw_newstate[MAX_SWITCHES]; //< debounced switch state
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volatile static int sw_count[MAX_SWITCHES]; //< debounce counter
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volatile static int sw_count[MAX_SWITCHES]; //< debounce counter
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static const sGPIOPin sw_arr[MAX_SWITCHES] =
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static const sGPIOPin sw_arr[MAX_SWITCHES] =
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        { { SW1_I_GPIO_Port, SW1_I_Pin }, // these two pins used to encode SW1 phase
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        { { SW1_I_GPIO_Port, SW1_I_Pin , 5}, // these two pins used to encode SW1 phase
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                        { SW1_Q_GPIO_Port, SW1_Q_Pin }, // "                             SW1 phase
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                        { SW1_Q_GPIO_Port, SW1_Q_Pin, 5 }, // "                             SW1 phase
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                        { SW2_I_GPIO_Port, SW2_I_Pin }, // these two pins used to encode SW2 phase
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                        { SW2_I_GPIO_Port, SW2_I_Pin , 5}, // these two pins used to encode SW2 phase
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                        { SW2_Q_GPIO_Port, SW2_Q_Pin }, // "                             SW2 phase
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                        { SW2_Q_GPIO_Port, SW2_Q_Pin , 5}, // "                             SW2 phase
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                        { SW1_PUSH_GPIO_Port, SW1_PUSH_Pin }, // two debounced switches
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                        { SW1_PUSH_GPIO_Port, SW1_PUSH_Pin, 10 }, // two debounced switches
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{ SW2_PUSH_GPIO_Port, SW2_PUSH_Pin }, };
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{ SW2_PUSH_GPIO_Port, SW2_PUSH_Pin, 10 }, };
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// call this to setup switch states
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// call this to setup switch states
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void InitSwitches(void) {
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void InitSwitches(void) {
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int i;
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int i;
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          sw_count[i] = 0;
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          sw_count[i] = 0;
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    }
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    }
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    else
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    else
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    {
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    {
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        // count up to debounce time
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        // count up to debounce time
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          if (sw_count[i] < DEBOUNCE_TIME)
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          if (sw_count[i] < sw_arr[i].Debounce)
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          {
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          {
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                sw_count[i]++;
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                sw_count[i]++;
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                if (sw_count[i] == DEBOUNCE_TIME)
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                if (sw_count[i] == sw_arr[i].Debounce)
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                {
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                {
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                        sw_newstate[i] = sw;
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                        sw_newstate[i] = sw;
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                }
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                }
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         }
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         }
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    }
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    }