static void kbd_task(void *pvParameters)
{
uint8_t idx = 0;
bool last_state = false;
char hikob[] = "-- HiKoB --";
while (1)
{
/* LED used to indicate if the device is set up */
if(kbd_get_state())
leds_off(LED_1);
last_state = false;
leds_toggle(LED_0);
vTaskDelay(configTICK_RATE_HZ/10);
if(!button_state() && !last_state){ //if the button is pushed
kbd_send(hikob[idx]);
idx ++;
last_state = true;
}
else{
kbd_send(NO_CHAR);
last_state = false;
}
if(idx > sizeof(hikob))
idx = 0;
}
}
/* Pesquisa de tecla */
int button_pressed(){
int i;
switch(buttonStatus_Pressed){
case testButton_Pressed: // Testar se existe alguma tecla premida
for(i=0; i<maxButton; ++i)
if( button_state(i) ){
buttonStatus_Pressed = pressedDebounce;
initial = chrono_start();
actualButton_Pressed = i;
break;
}
break;
case pressedDebounce: // Esperar tempo (debounce)
if(chrono_timeout(initial, debounceTime)){
if( button_state(actualButton_Pressed) ){
write(&fifo, buttons[actualButton_Pressed].id);// escreve no fifobuffer
buttonStatus_Pressed = testButton_Released;
return 1; //botao premido
}
buttonStatus_Pressed = testButton_Pressed; // Nao ha tecla premida
}
break;
case testButton_Released: // verificar se botao continua pressionado
if( !button_state(actualButton_Pressed) ){
initial = chrono_start();
buttonStatus_Pressed = releaseDebounce;
}
//return 1; //botao continua pressionado
break;
case releaseDebounce: // Debounce (botao largado)
if(chrono_timeout(initial, debounceTime) ){
if( button_state(actualButton_Pressed) ){
buttonStatus_Pressed = testButton_Released; // continua premido
//return 1;
}
else buttonStatus_Pressed = testButton_Pressed;
}
//else return 1;
break;
default:
return 0;
}
return 0;
}
void game_snd_buffer(uint16_t *stream, int size)
{
for (int i=0;i<size; i++) {
if (sample_in_tick++==Player.samplesPerTick) {
// check button for next song ...
if (!button_state() && prev_but){
set_led(vga_frame & 64);
loadNextFile();
} else {
player();
}
prev_but=button_state();
sample_in_tick=0;
}
stream[i] = mixer(stream);
}
}
void game_frame()
{
// if button pressed, send 'a' quickly
if (button_state())
serial_putchar('a'); // low level output
if (vga_frame%16) return;
led=1-led;
set_led(led);
// echo input first character
if (serial_rx_ready())
serial_putchar(serial_getchar()); // could block
}
__attribute__((weak)) int main(void)
{
game_init();
while (1) {
game_frame();
// wait next frame.
int oframe=vga_frame;
while (oframe==vga_frame);
set_led(button_state());
}
}
int main(void)
{
int ret;
button_init();
while(1){
ret = button_state();
if(ret != 4)
printf("button %d is down\n", ret);
}
return 0;
}
int bitbox_main() {
static int i;
while(1) {
set_led(button_state() || (i++ & 1<<20));
}
}
