Rohan Mandhotra: UWOrbital Onboarding

Testing/Temporary/CTestCostData.txt

@@ -0,0 +1 @@
+---

Testing/Temporary/LastTest.log

@@ -0,0 +1,3 @@
+Start testing: Jan 23 15:15 EST
+----------------------------------------------------------
+End testing: Jan 23 15:15 EST

lm75bd/lm75bd.c

@@ -8,8 +8,8 @@
 #include <math.h>
 
 /* LM75BD Registers (p.8) */
-#define LM75BD_REG_CONF 0x01U  /* Configuration Register (R/W) */
-
+#define LM75BD_REG_CONF 0x01U /* Configuration Register (R/W) */
+#define LM75BD_REG_TEMP 0x00U /* Temperature Register (R) */
 error_code_t lm75bdInit(lm75bd_config_t *config) {
   error_code_t errCode;
 
@@ -24,11 +24,29 @@ error_code_t lm75bdInit(lm75bd_config_t *config) {
 
   return ERR_CODE_SUCCESS;
 }
-
 error_code_t readTempLM75BD(uint8_t devAddr, float *temp) {
   /* Implement this driver function */
-
+  error_code_t errCode;
+
+  /* Set pointer to the sensor's temperature register */
+  uint8_t tempPointer = LM75BD_REG_TEMP;
+
+  /* Selects sensor's temperature register */
+  RETURN_IF_ERROR_CODE(i2cSendTo(devAddr, &tempPointer, 1));
+
+  uint8_t tempData[2] = {0};
+
+  /* Receives temperature data from the sensor, stores it in tempData */
+  RETURN_IF_ERROR_CODE(i2cReceiveFrom(devAddr, tempData, 2));
+
+  /* Converts tempData to a signedValue int16_t */
+  int16_t tempVal = tempData[1] | (tempData[0] << 8);
+
+  /* Sets temp pointer to the decimal value of the sensor temperature, and eliminates 5 LSBytes to the right */
+  *temp = (float)(tempVal >> 5) * 0.125;
   return ERR_CODE_SUCCESS;
+
+
 }
 
 #define CONF_WRITE_BUFF_SIZE 2U

lm75bd/lm75bd.h

@@ -5,7 +5,7 @@
 #include <stdint.h>
 
 /* LM75BD I2C Device Address */
-#define LM75BD_OBC_I2C_ADDR /* Define the address here */
+#define LM75BD_OBC_I2C_ADDR 0x4F/* Define the address here */
 
 /* LM75BD Configuration Values */
 #define LM75BD_DEV_OP_MODE_NORMAL 0x00U

services/thermal_mgr/thermal_mgr.c

@@ -9,7 +9,11 @@
 
 #include <string.h>
 
+#include "logging.h"
+
 #define THERMAL_MGR_STACK_SIZE 256U
+#define I2C_TEMP_OT_THRESH 80.0f
+#define I2C_TEMP_HYST_THRESH 75.0f
 
 static TaskHandle_t thermalMgrTaskHandle;
 static StaticTask_t thermalMgrTaskBuffer;
@@ -43,18 +47,47 @@ void initThermalSystemManager(lm75bd_config_t *config) {
 
 error_code_t thermalMgrSendEvent(thermal_mgr_event_t *event) {
   /* Send an event to the thermal manager queue */
-
+
+  if(event == NULL) return ERR_CODE_INVALID_ARG;
+  if(thermalMgrQueueHandle == NULL) return ERR_CODE_INVALID_STATE;
+  if(xQueueSend(thermalMgrQueueHandle, event, 0) == errQUEUE_FULL) return ERR_CODE_QUEUE_FULL;
   return ERR_CODE_SUCCESS;
 }
 
 void osHandlerLM75BD(void) {
   /* Implement this function */
+  thermal_mgr_event_t event = {.type = THERMAL_MGR_EVENT_INTERRUPT};
+  thermalMgrSendEvent(&event);
 }
 
 static void thermalMgr(void *pvParameters) {
   /* Implement this task */
   while (1) {
-
+    error_code_t errCode;
+    thermal_mgr_event_t tempEvent;
+    float tempVal;
+
+
+    if (xQueueReceive(thermalMgrQueueHandle, &tempEvent, portMAX_DELAY) == pdTRUE){
+      if (tempEvent.type == THERMAL_MGR_EVENT_MEASURE_TEMP_CMD)
+      {
+        errCode = readTempLM75BD(LM75BD_OBC_I2C_ADDR, &tempVal);
+        if(errCode == ERR_CODE_SUCCESS) {
+          addTemperatureTelemetry(tempVal);
+        }
+      }
+      else if (tempEvent.type == THERMAL_MGR_EVENT_INTERRUPT) {
+        errCode = readTempLM75BD(LM75BD_OBC_I2C_ADDR, &tempVal);
+        if (errCode == ERR_CODE_SUCCESS) {
+          if (tempVal >= I2C_TEMP_OT_THRESH) {
+            overTemperatureDetected();
+          }
+          if (tempVal <= I2C_TEMP_HYST_THRESH) {
+            safeOperatingConditions();
+          }          
+        }
+      }
+    }
   }
 }
 

services/thermal_mgr/thermal_mgr.h

@@ -5,7 +5,7 @@
 
 typedef enum {
   THERMAL_MGR_EVENT_MEASURE_TEMP_CMD,
-
+  THERMAL_MGR_EVENT_INTERRUPT, 
 } thermal_mgr_event_type_t;
 
 typedef struct {