int main(void) {
led__init();
schedule();
for(;;) {
if (timer0__overflow__interrupt__pending__get()) {
timer0__overflow__interrupt__pending__clear();
timer0__conf__set(TIMER0_CONF_DEFAULT);
led__toggle();
schedule();
}
}
}
void temperature_reader__thread__run(void) {
VT_BEGIN(temperature_reader__thread, temperature_reader__thread__ip);
timer0__overflow__interrupt__pending__clear();
for (;;) {
// led1__set(1);
// led2__set(1);
onewire__setup_transaction((uint8_t) sizeof(command_convert), 0, command_convert, 0);
onewire__transaction();
do {
VT_YIELD_WITH_MARK(temperature_reader__thread, temperature_reader__thread__ip, COMMAND_CONVERT);
onewire__thread__run();
}
while (onewire__thread__is_alive());
// led1__set(1);
// led2__set(0);
onewire__thread__delay_counter = 46;
timer0__conf__set(TIMER0_CONF_PRESCALER_1024|TIMER0_CONF_WGM_NORMAL);
for (;;) {
VT_YIELD_WITH_MARK(temperature_reader__thread, temperature_reader__thread__ip, SLEEP);
timer0__overflow__interrupt__pending__clear();
if (--onewire__thread__delay_counter == 0) break;
}
// led1__set(0);
// led2__set(1);
onewire__setup_transaction(sizeof(command), sizeof(response), command, response);
onewire__transaction();
do {
VT_YIELD_WITH_MARK(temperature_reader__thread, temperature_reader__thread__ip, COMMAND_READ);
onewire__thread__run();
}
while (onewire__thread__is_alive());
// led1__set(0);
// led2__set(0);
temperature_reader__reading = (response[0] | (response[1] << 8)) << 4;
temperature_reader__reading__on_changed();
// _delay_ms(1);
}
VT_UNREACHEABLE_END(temperature_reader__thread);
}
void schedule(void) {
timer0__value__set(0);
timer0__conf__set(TIMER0_CONF_PRESCALER_64|TIMER0_CONF_WGM_NORMAL);
}
/**
* 1-wire thread function.
* Invoked when it's time to render new bit on the bus.
* Other interrupts in the system should not take much time (say, less than 3uS) not to skrew up 1-wire timings.
*/
void onewire__thread__run(void) {
timer0__overflow__interrupt__pending__clear();
VT_BEGIN(onewire__thread, onewire__thread__ip);
// timer0__conf__set(TIMER0_CONF_DEFAULT);
led__toggle();
VT_YIELD(onewire__thread, onewire__thread__ip);
led__toggle();
VT_YIELD(onewire__thread, onewire__thread__ip);
led__toggle();
VT_YIELD(onewire__thread, onewire__thread__ip);
led__toggle();
VT_YIELD(onewire__thread, onewire__thread__ip);
timer0__conf__set(TIMER0_CONF_DEFAULT);
/*
onewire__bus__set(0);
timer0__value__set(0); // 0.5uS * 256 = 128uS timeout
timer0__conf__set(ONEWIRE__BIT_SPAN_TIMER__FAST_CONF);
VT_YIELD(onewire__thread, onewire__thread__ip);
onewire__bus__set(1);
timer0__conf__set(TIMER0_CONF_DEFAULT);
*/
/*
onewire__bus__set(0);
timer0__value__set(0); // 0.5uS * 256 = 128uS timeout
timer0__conf__set(ONEWIRE__BIT_SPAN_TIMER__FAST_CONF);
VT_YIELD(onewire__thread, onewire__thread__ip);
onewire__bus__set(1);
timer0__conf__set(TIMER0_CONF_DEFAULT);
onewire__bus__set(0);
timer0__value__set(0); // 0.5uS * 256 = 128uS timeout
timer0__conf__set(ONEWIRE__BIT_SPAN_TIMER__FAST_CONF);
VT_YIELD(onewire__thread, onewire__thread__ip);
onewire__bus__set(1);
timer0__conf__set(TIMER0_CONF_DEFAULT);
onewire__bus__set(0);
timer0__value__set(0); // 0.5uS * 256 = 128uS timeout
timer0__conf__set(ONEWIRE__BIT_SPAN_TIMER__FAST_CONF);
VT_YIELD(onewire__thread, onewire__thread__ip);
onewire__bus__set(1);
timer0__conf__set(TIMER0_CONF_DEFAULT);
*/
/*
//Render "0" bit
onewire__bus__set(0);
timer2__compare_a__value__set(238); // 238
timer2__value__set(118); // start from 118, count till 238 = 120, 60uS
timer2__conf__set(ONEWIRE__BIT_FORM_TIMER__FAST_CONF);
timer2__compare_a__interrupt__enable();
timer0__value__set(0); // 0.5uS * 256 = 128uS timeout
timer0__conf__set(ONEWIRE__BIT_SPAN_TIMER__FAST_CONF);
VT_YIELD(onewire__thread, onewire__thread__ip);
timer0__conf__set(TIMER0_CONF_DEFAULT);
timer2__conf__set(TIMER2_CONF_DEFAULT);
timer2__compare_a__interrupt__disable();
// Render 32uS low pulse
onewire__bus__set(0);
timer2__compare_a__value__set(238);
timer2__value__set(174); // start from 174, count till 238 = 64, 32uS
timer2__conf__set(ONEWIRE__BIT_FORM_TIMER__FAST_CONF);
timer2__compare_a__interrupt__enable();
timer0__value__set(0); // 0.5uS * 256 = 128uS timeout
timer0__conf__set(ONEWIRE__BIT_SPAN_TIMER__FAST_CONF);
VT_YIELD(onewire__thread, onewire__thread__ip);
timer0__conf__set(TIMER0_CONF_DEFAULT);
timer2__conf__set(TIMER2_CONF_DEFAULT);
timer2__compare_a__interrupt__disable();
// Render "1" bit
onewire__bus__set(0);
timer2__compare_a__value__set(238); // 238
timer2__value__set(226); // start from 226, count till 238 = 12, 6uS
timer2__conf__set(ONEWIRE__BIT_FORM_TIMER__FAST_CONF);
timer2__compare_a__interrupt__enable();
timer0__value__set(0); // 0.5uS * 256 = 128uS timeout
timer0__conf__set(ONEWIRE__BIT_SPAN_TIMER__FAST_CONF);
VT_YIELD(onewire__thread, onewire__thread__ip);
timer0__conf__set(TIMER0_CONF_DEFAULT);
timer2__conf__set(TIMER2_CONF_DEFAULT);
timer2__compare_a__interrupt__disable();
*/
onewire__thread__alive__set(false);
VT_END(onewire__thread);
}
/** Starts the thread */
void onewire__thread__start(void) {
VT_INIT(onewire__thread, onewire__thread__ip);
onewire__thread__alive__set(true);
timer0__conf__set(ONEWIRE__BIT_SPAN_TIMER__FAST_CONF);
}
void temperature_reader__thread__start(void) {
VT_INIT(temperature_reader__thread, temperature_reader__thread__ip);
timer0__conf__set(TIMER0_CONF_PRESCALER_1024|TIMER0_CONF_WGM_NORMAL);
}
