therm-ng Changeset - 9ae5559ab974 · protofusion repositories

Changeset - 9ae5559ab974

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matthewreed - 7 years ago 2018-12-30 21:46:42

Added current setpoint number to heating screens, and a few fixes for floating point numbers and such.

6 files changed with 39 insertions and 12 deletions:

inc/states.h

inc/system/gpio.h

src/display.c

src/main.c

src/system/gpio.c

src/tempsense.c

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inc/states.h

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 #ifndef STATES_H
 #define STATES_H
 #include "stm32f3xx_hal.h"
 #include "config.h"
 typedef struct {
     float temp;
     uint8_t state_resume;
     uint8_t state;
-    int32_t setpoint;
+    float setpoint;
     uint8_t pid_enabled;
     uint8_t error_code;
     uint8_t setpoint_index;
 } therm_status_t;
 typedef union
+{
      struct {
         uint32_t boottobrew;
         uint32_t temp_units;
         uint32_t windup_guard;
         uint32_t k_p;
         uint32_t k_i;
         uint32_t k_d;
-        int32_t temp_offset; //TODO: convert to float
+        float temp_offset;
         uint32_t ignore_error;
-        int32_t setpoints[MAX_SETPOINTS];
+        float setpoints[MAX_SETPOINTS];
         uint32_t control_mode;
         uint32_t sensor_type;
         uint32_t plant_type;
         uint32_t hysteresis;
         uint32_t setpoint_count;
         uint32_t setpoint_aux_select_enable;
     } val;
     uint16_t data[128];
 } therm_settings_t;
 enum tempunits {
     TEMP_UNITS_CELSIUS = 0,
     TEMP_UNITS_FAHRENHEIT,
 };
 enum state {
     STATE_IDLE = 0,
 	STATE_SETSENSORTYPE,
     STATE_SETMODE,
     STATE_SETPLANTTYPE,
     STATE_SETSETPOINTCOUNT,
     STATE_SETSETPOINTAUXSELECTENABLE,

inc/system/gpio.h

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@@ @@ -26,29 +26,30 @@ @@
 #define SW_C_Pin GPIO_PIN_7
 #define SW_C_GPIO_Port GPIOA
 #define SW_DOWN SW_C_GPIO_Port, SW_C_Pin
 #define SW_BTN_Pin GPIO_PIN_0
 #define SW_BTN_GPIO_Port GPIOB
 #define SW_BTN SW_BTN_GPIO_Port , SW_BTN_Pin
 #define LED_PIN GPIO_PIN_6
 #define LED_GPIO_Port GPIOB
 #define LED LED_GPIO_Port, LED_PIN
 #define AUX_INPUT_Pin GPIO_PIN_10
 #define AUX_INPUT_GPIO_Port GPIOA
 #define AUX_INPUT AUX_INPUT_GPIO_Port , AUX_INPUT_Pin
 #define AUX_RETURN_Pin GPIO_PIN_9
 #define AUX_RETURN_GPIO_Port GPIOA
 #define AUX_RETURN AUX_RETURN_GPIO_Port , AUX_RETURN_Pin
 void user_input(uint16_t* to_modify);
 void user_input_min_max(uint16_t* to_modify, uint16_t min, uint16_t max);
 void user_input_signed(int32_t* to_modify);
 void user_input_float(float* to_modify);
 void gpio_init(void);
 void gpio_led_blueblink(uint8_t num_blinks);
 #endif

src/display.c

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@@ @@ -542,159 +542,167 @@ void display_process(void) @@
             else if(!HAL_GPIO_ReadPin(SW_UP)) {
                 set->val.temp_units = TEMP_UNITS_FAHRENHEIT;
+            }
             else if(!HAL_GPIO_ReadPin(SW_DOWN)) {
                 set->val.temp_units = TEMP_UNITS_CELSIUS;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_SETTEMPOFFSET:
+        {
             // Write text to OLED
             // [ therm :: set temp offset ]
             // [ g = 12         ]
             ssd1306_drawstring("Temp Cal Offset", 0, 40);
             ssd1306_drawlogo();
             ssd1306_drawchar(updown(), 1, 52);
             char tempstr[12];
-            snprintf(tempstr, 12, "O=%ld", set->val.temp_offset);
+            snprintf(tempstr, 12, "O=%.1f  ", set->val.temp_offset);
             ssd1306_drawstring(tempstr, 1, 60);
             ssd1306_drawstring("Press to accept", 3, 40);
             // Button handler
             if(SW_BTN_PRESSED) {
                 flash_savesettings();
                 status->state = STATE_IDLE;
+            }
             else {
-                user_input_signed(&set->val.temp_offset);
+                user_input_float(&set->val.temp_offset);
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_PREHEAT:
+        {
             // Write text to OLED
             // [ therm : preheating brew ]
             // [ 30 => 120 C             ]
             if(set->val.plant_type == PLANT_HEATER)
-                ssd1306_drawstring("Preheating...", 0, 0);
+                ssd1306_drawstring("Preheat...", 0, 0);
             else
                 ssd1306_drawstring("Precooling...", 0, 0);
                 ssd1306_drawstring("Precool...", 0, 0);
             char tempstr[4];
             snprintf(tempstr, 4, "#%d  ", (status->setpoint_index + 1));
             ssd1306_drawstring(tempstr, 0, 65);
             //ssd1306_drawlogo();
             draw_setpoint(status);
             status->pid_enabled = 1;
             status->setpoint = set->val.setpoints[status->setpoint_index];
             // Button handler
             if(SW_BTN_PRESSED) {
                 status->state = STATE_IDLE;
                 flash_savesettings();
+            }
             else if (!(set->val.setpoint_aux_select_enable) && SW_LEFT_PRESSED)
+            {
                 if (status->setpoint_index > 0)
+                {
                     status->setpoint_index--;
+                }
+            }
             else if (!(set->val.setpoint_aux_select_enable) && SW_RIGHT_PRESSED)
+            {
                 if (status->setpoint_index < (set->val.setpoint_count - 1))
+                {
                     status->setpoint_index++;
+                }
+            }
             else {
-                user_input_signed(&set->val.setpoints[status->setpoint_index]);
+                user_input_float(&set->val.setpoints[status->setpoint_index]);
+            }
             // Event Handler
             if(status->temp >= status->setpoint) {
                 status->state = STATE_MAINTAIN;
+            }
             if(set->val.setpoint_aux_select_enable && aux_input)
+            {
                 status->setpoint_index = 1;
+            }
             else if(set->val.setpoint_aux_select_enable && !aux_input)
+            {
                 status->setpoint_index = 0;
+            }
         } break;
         case STATE_MAINTAIN:
+        {
             // Write text to OLED
             // [ therm : ready to brew ]
             // [ 30 => 120 C           ]
             if(set->val.plant_type == PLANT_HEATER)
                 ssd1306_drawstring("Preheated!", 0, 0);
             else
                 ssd1306_drawstring("Precooled!", 0, 0);
             char tempstr[4];
             snprintf(tempstr, 4, "#%d  ", (status->setpoint_index + 1));
             ssd1306_drawstring(tempstr, 0, 65);
             draw_setpoint(status);
             status->pid_enabled = 1;
             status->setpoint = set->val.setpoints[status->setpoint_index];
             // Button handler
             if(SW_BTN_PRESSED) {
                 status->state = STATE_IDLE;
                 flash_savesettings();
+            }
             else if (!(set->val.setpoint_aux_select_enable) && SW_LEFT_PRESSED)
+            {
                 if (status->setpoint_index > 0)
+                {
                     status->setpoint_index--;
+                }
+            }
             else if (!(set->val.setpoint_aux_select_enable) && SW_RIGHT_PRESSED)
+            {
                 if (status->setpoint_index < (set->val.setpoint_count - 1))
+                {
                     status->setpoint_index++;
+                }
+            }
             else {
-                user_input_signed(&set->val.setpoints[status->setpoint_index]);
+                user_input_float(&set->val.setpoints[status->setpoint_index]);
+            }
             // Event Handler
             // N/A
         } break;
         // Thermocouple error
         case STATE_TC_ERROR:
+        {
             // Write text to OLED
             // [ therm : ready to steam ]
             // [ 30 => 120 C            ]
             ssd1306_drawstring("Error:              ", 0, 0);
             char tempstr[6];
             itoa(status->error_code, tempstr, 10);
             ssd1306_drawstring(tempstr, 0, 57);
             //TODO: add RTD error codes
             if(status->error_code == 1)
                 ssd1306_drawstring("    TC Open Circuit", 1, 0);
             else if(status->error_code == 4)
@@ @@ -821,40 +829,40 @@ void display_process(void) @@
     sw_up_last = sw_up;
     sw_down_last = sw_down;
     sw_left_last = sw_left;
     sw_right_last = sw_right;
+}
 static float temp_last = 43002.0;
 static float setpoint_last = 10023.0;
 // Draw current setpoint on display
 static void draw_setpoint(therm_status_t* status) {
     // FIXME: need to do this when switching modes too
     if(status->temp != temp_last || trigger_drawsetpoint) {
         char tempstr[8];
         snprintf(tempstr, 8, "%4.1f", status->temp);
         ssd1306_drawstringbig(tempstr, 3, 0);
+    }
     if(trigger_drawsetpoint)
         ssd1306_drawstringbig(">", 3, 74);
     if(status->setpoint != setpoint_last || trigger_drawsetpoint) {
         char tempstr[4];
-        snprintf(tempstr, 4, "%ld     ", status->setpoint);
+        snprintf(tempstr, 4, "%3.0f     ", status->setpoint);
         ssd1306_drawstringbig(tempstr, 3, 90);
+    }
     trigger_drawsetpoint = 0;
     setpoint_last = status->setpoint;
     temp_last = status->temp;
+}
 void display_startup_screen() {
     ssd1306_clearscreen();
     ssd1306_drawstring("therm v0.4", 1, 40);
     ssd1306_drawstring("protofusion.org/therm", 3, 0);
+}
 // vim:softtabstop=4 shiftwidth=4 expandtab

src/main.c

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@@ @@ -16,63 +16,62 @@ @@
 #include "error.h"
 #include "flash.h"
 #include "ssd1306/ssd1306.h"
 #include "pwmout.h"
 int main(void)
+{
     sysclock_init();
     hal_init();
     gpio_init();
     flash_init();
     ssd1306_init();
     // Startup screen
     display_startup_screen();
     HAL_Delay(2000);
     ssd1306_clearscreen();
     //ssd1306_drawlogo();
     // Default status
     runtime_status()->temp = 0.0;
     runtime_status()->state_resume = 0;
     runtime_status()->setpoint = 70;
+    runtime_status()->setpoint = 70.0;
     runtime_status()->pid_enabled = 0;
     runtime_status()->setpoint_index = 0;
     if (flash_getsettings()->val.boottobrew)
+    {
         runtime_status()->state = STATE_PREHEAT;
+    }
     else
+    {
         runtime_status()->state = STATE_IDLE;
+    }
     pid_init();
     pwmout_init();
     flash_init();
     watchdog_init();
     tempsense_init();
     // Soft timers
     uint32_t last_pid = 0;
     uint32_t last_thermostat = 0;
     uint32_t last_1hz = 0;
     uint32_t last_5hz = 0;
     int16_t duty = 0;
     while (1)
+    {
         if(HAL_GetTick() - last_1hz > 750)
+        {
             display_1hz();
             last_1hz = HAL_GetTick();
+        }
         if(HAL_GetTick() - last_5hz > 200)
+        {
             tempsense_readtemp();
             runtime_status()->temp = tempsense_gettemp();

src/system/gpio.c

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@@ @@ -88,24 +88,42 @@ void user_input_min_max(uint16_t* to_mod @@
             CHANGE_RESET;
             (*to_modify)--;
+        }
+    }
+}
 // Increment/decrement signed variable with up/down buttons
 void user_input_signed(int32_t* to_modify)
+{
     //fixme: need to cast to 16/32 bits correctly
     if(CHANGE_ELAPSED) {
         if(!HAL_GPIO_ReadPin(SW_UP) ) {
             CHANGE_RESET;
             if (*to_modify < 32768)
                 (*to_modify)++;
+        }
         else if(!HAL_GPIO_ReadPin(SW_DOWN)) {
             CHANGE_RESET;
             if (*to_modify >= -32768)
                 (*to_modify)--;
+        }
+    }
+}
 // Increment/decrement signed variable with up/down buttons
 void user_input_float(float* to_modify)
+{
     //fixme: need to cast to 16/32 bits correctly
     if(CHANGE_ELAPSED) {
         if(!HAL_GPIO_ReadPin(SW_UP) ) {
             CHANGE_RESET;
             if (*to_modify < 32768)
                 (*to_modify)++;
+        }
         else if(!HAL_GPIO_ReadPin(SW_DOWN)) {
             CHANGE_RESET;
             if (*to_modify >= -32768)
                 (*to_modify)--;
+        }
+    }
+}

src/tempsense.c

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@@ @@ -20,44 +20,45 @@ void tempsense_init(void) @@
     // we need to re-init...
+}
 // Request reading from configured temperature sensor
 void tempsense_readtemp(void)
+{
     switch(flash_getsettings()->val.sensor_type)
+    {
         case SENSOR_TC_K:
         case SENSOR_TC_E:
         case SENSOR_TC_N:
         case SENSOR_TC_R:
         case SENSOR_TC_S:
         case SENSOR_TC_T:
+        {
             // Read MAX31856
             max31856_process();
         } break;
         case SENSOR_NTC:
+        {
             // Read analog value from internal ADC, linearize the reading, etc
             //TODO
         } break;
+    }
     // either return latest reading from DMA loop (NTC, etc)
     // or initiate a blocking read and return it.
     // Need to gracefully handle the timeout...
+}
 // Get latest temperature in requested units
 float tempsense_gettemp(void)
+{
     float temp_converted = max31856_latest_temp();
     if(flash_getsettings()->val.temp_units == TEMP_UNITS_FAHRENHEIT)
         temp_converted = temp_converted * 1.8f + 32.0f;
     return temp_converted;
+}

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