void adc_task(void) {
uint8_t update_time = 0;
adc_init();
while (1) {
char light_str[6], temp_str[6], time_str[6];
uint8_t light = adc_acquire(0);
uint8_t temperature = adc_acquire(1);
uint8_t_to_ascii(light, &(light_str[0]));
uint8_t_to_ascii(temperature, &(temp_str[0]));
uint8_t_to_ascii(ticks, &(time_str[0]));
os_semaphore_wait(&lcd_sem);
lcd_set_cursor(0, 0);
lcd_putstr("Time: ");
lcd_putstr(time_str);
lcd_set_cursor(1, 0);
lcd_putstr("Light: ");
lcd_putstr(light_str);
lcd_set_cursor(2, 0);
lcd_putstr("Temp: ");
lcd_putstr(temp_str);
os_semaphore_signal(&lcd_sem);
os_semaphore_wait(&stt_sem);
if (state) {
update_time = 1;
} else {
update_time = 0;
}
os_semaphore_signal(&stt_sem);
os_semaphore_wait(&tck_sem);
if (update_time) {
ticks++;
}
os_semaphore_signal(&tck_sem);
if (state == 1) {
usart_puts("Time: ");
usart_puts(time_str);
usart_puts("\r\n");
usart_puts("Light: ");
usart_puts(light_str);
usart_puts("\r\n");
usart_puts("Temperature: ");
usart_puts(temp_str);
usart_puts("\r\n");
}
os_delay(os_get_current_pid(), 1000);
}
}
//LM35 data processing function
unsigned int temp_acquire(void)
{
float l;
l=adc_acquire(CHANNEL_0); //get data for processing
l=(l*500.0)/1023.0;
unsigned int temp_val=l;
return temp_val;
}
