states adjusted

This commit is contained in:
Stefan Kögl 2012-10-02 22:00:49 +02:00
parent 0161495ffb
commit 338a8de119
3 changed files with 60 additions and 20 deletions

View File

@ -322,7 +322,7 @@ mkdir build
cd build cd build
cmake .. cmake ..
make make
make reflowctl-upload make reflowctl-upload && ../serialmon.py
</pre> </pre>
</div> </div>
</body> </body>

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@ -13,4 +13,4 @@ Then you have to install cmake, for the serialmon.py script python and pyserial.
cd build cd build
cmake .. cmake ..
make make
make reflowctl-upload make reflowctl-upload && ../serialmon.py

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@ -1,4 +1,20 @@
#define START_STATE 0
#define PREHEAT_STATE 1
#define RAMP_UP_STATE 2
#define TAL_FIRST_STATE 3
#define PEAK_STATE 4
#define TAL_SECOND_STATE 5
#define RAMPDOWN_STATE 6
#define END_STATE 7
#define ERROR_STATE 8
// error conditions
#define E_RAMPUP 1 // oven heats up too fast
#define E_RAMPDOWN_TOO_FAST 2 // oven cools down too fast
#define E_RAMPDOWN_TOO_SLOW 3 // oven cools down too slow
#define E_TIME_MAX 4 // reflow process does take too long
unsigned int time = 0; // profile seconds unsigned int time = 0; // profile seconds
unsigned int temperatur = 25; // actual oven temp unsigned int temperatur = 25; // actual oven temp
unsigned int last_temperatur = 25; unsigned int last_temperatur = 25;
@ -12,28 +28,18 @@ unsigned int tal = 217; // 217°C
unsigned int tal_duration = 100; // 60-150s unsigned int tal_duration = 100; // 60-150s
unsigned int peak_duration = 30; // 20-40s unsigned int peak_duration = 30; // 20-40s
unsigned int rampdown_max = 6; // 6°C/s max unsigned int rampdown_max = 6; // 6°C/s max
unsigned int rampdown_min = 2; // 2°C/s max
unsigned int time_max = 480; // 8*60s max unsigned int time_max = 480; // 8*60s max
#define START_STATE 0
#define PREHEAT_STATE 1
#define TAL_STATE 2
#define MAX_STATE 3
#define RAMPDOWN_STATE 4
#define END_STATE 5
#define ERROR_STATE 6
byte state = START_STATE;
unsigned int Ts_min_time = 0; unsigned int Ts_min_time = 0;
unsigned int Ts_max_time = 0; unsigned int Ts_max_time = 0;
unsigned int Tl_time = 0; unsigned int Tl_time = 0;
unsigned int Tl_time_end = 0;
unsigned int Tp_time = 0; unsigned int Tp_time = 0;
unsigned int Tl_end_time = 0; unsigned int Tl_end_time = 0;
#define RAMPUP_TOO_FAST 1
#define RAMPDOWN_TOO_FAST 2
unsigned int error_condition = 0; unsigned int error_condition = 0;
byte state = START_STATE;
void setup() { void setup() {
pinMode(13, OUTPUT); pinMode(13, OUTPUT);
@ -47,12 +53,40 @@ void get_temp() {
boolean check_rampup_rate() { boolean check_rampup_rate() {
if (temperatur - last_temperatur > rampup_rate) { if (temperatur - last_temperatur > rampup_rate) {
error_condition = RAMPUP_TOO_FAST; error_condition = E_RAMPUP;
return false; return false;
} }
return true; return true;
} }
boolean check_rampdown_rate() {
unsigned int dt = temperatur - last_temperatur;
if (dt > rampdown_max) {
error_condition = E_RAMPDOWN_TOO_FAST;
return false;
}
if (dt < rampdown_min) {
error_condition = E_RAMPDOWN_TOO_SLOW;
return false;
}
return true;
}
boolean time_max_check() {
if (time > time_max) {
error_condition = E_TIME_MAX;
return false;
}
}
boolean check_tal_duration() {
if (time > time_max) {
error_condition = E_TIME_MAX;
return false;
}
}
void loop() { void loop() {
time = millis() / 1000; time = millis() / 1000;
get_temp(); get_temp();
@ -62,32 +96,38 @@ void loop() {
Serial.print(" "); Serial.print(" ");
Serial.println(last_temperatur); Serial.println(last_temperatur);
delay(1000);
switch (state) { switch (state) {
case START_STATE: case START_STATE:
// going from room temp to preheat, nothing to check here // going from room temp to preheat, nothing to check here
if (!check_rampup_rate()) if (!check_rampup_rate())
goto error; goto error;
if (temperatur > Ts_min) { if (temperatur > Ts_min) {
Serial.println("Changed state to PREHEAT_STATE");
Ts_min_time = time;
state++; state++;
} }
case PREHEAT_STATE: case PREHEAT_STATE:
if (temperatur > Ts_max) { if (temperatur > Ts_max) {
Serial.println("Changed state to PREHEAT_STATE"); Serial.println("Changed state to PREHEAT_STATE");
Ts_max_time = time;
state++; state++;
} }
break; break;
case TAL_STATE: case TAL_FIRST_STATE:
break; break;
case MAX_STATE: case PEAK_STATE:
break;
case TAL_SECOND_STATE:
break; break;
case RAMPDOWN_STATE: case RAMPDOWN_STATE:
break; break;
case END_STATE:
default: default:
break; break;
} }
delay(1000);
return; return;
error: error: