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Modify eliminate jitter delay timebase in header file:
#define KEY_DELAY_TIMEBASE (10) -
In STM32 Systick interrupt ISR, each eliminate jitter delay timebase decrement once variable
g_uwKeyDelayX10ms. -
Loop call the function
keyOperateCmd(), example for inmain()robin-round it. -
Implement 3 funtions with prototype:
void keyUpHook(RetKeyType_un keyData)void keyDownHook(RetKeyType_un keyData)void keyAlwaysDownHook(RetKeyType_un keyData)
Example for:
void KeyDownHook(RetKeyType_un keyData) { switch (keyData.ucReadKeyByByte[0]) { // Only a button be pressed case 1: switch (keyData.ucReadKeyByByte[1]) { case KU_KEY_OK: // Up button be pressed handle code... break; case KD_KEY_OK: // Down button be pressed handle code... break; case KL_KEY_OK: // Left button be pressed handle code... break; case KR_KEY_OK: // Right button be pressed handle code... break; case ENTER_KEY_OK: // Enter button be pressed handle code... break; case BACK_KEY_OK: // Back button be pressed handle code... break; default: break; } break; // Two buttons are pressed simultaneously case 2: // Here has 6 buttons, each 2 buttons be pressed simultaneously, // so there are 15 different combinations switch (keyData.ucReadKeyByByte[1] + keyData.ucReadKeyByByte[2]) { // KU_KEY_OK + KD_KEY_OK case KD_KEY_OK: break; ... } break; // Other... default: break; } }