Diff: main.cpp

Revision:

5:af38bfffd6d3

Parent:

4:d3171636a86b

Child:

8:2b1ab5937e95

--- a/main.cpp	Sun Apr 07 09:55:34 2019 +0000
+++ b/main.cpp	Sun Apr 07 11:01:25 2019 +0000
@@ -69,34 +69,33 @@
     DigitalOut gLED(LED2, LED_OFF);
     DigitalOut bLED(LED3, LED_OFF);
     gLED = LED_ON;
-    printf("DS1775 DS75 Digital Thermometer and Thermostat example source code.\r\n");
+    printf("DS1775 DS75 Digital Thermometer and "
+        "Thermostat example source code.\r\n");
     printf("\r\n");
 
     DS1775 temp_sensor(i2cBus, DS1775_I2C_SLAVE_ADR_R0);
     i2cBus.frequency(400000);
-  #if 0   
     /* Configure for 9 bit resolution, fault filter 1, 
        active low, comparator, continuous,
      */
-    temp_sensor.write_cfg(uint16_t(DS1775_CFG_RESOLUTION_9BIT |
+    temp_sensor.write_cfg(uint8_t(DS1775_CFG_RESOLUTION_9BIT |
         DS1775_CFG_FAULT_FILTER_6 | DS1775_CFG_OS_POLARITY_ACT_LOW |
         DS1775_CFG_COMPARATOR_MODE | DS1775_CFG_CONTINUOUS));
     for (i = 0; i < 10; i++) {
         wait(DS1775_WAIT_CONV_TIME_9BIT);
-        temperature = temp_sensor.read_reg_as_temperature(DS1775_REG_TEMPERATURE);
+        temperature =
+            temp_sensor.read_reg_as_temperature(DS1775_REG_TEMPERATURE);
         printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
             temperature, temp_sensor.celsius_to_fahrenheit(temperature));
     }
-    temperature = temp_sensor.read_reg_as_temperature(DS1775_REG_TOS_HIGH_TRIP);
-        printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
-            temperature, temp_sensor.celsius_to_fahrenheit(temperature));
     temp_sensor.read_cfg_reg(&cfg);
     printf("Configuration Register = 0x%02Xh \r\n", cfg);
     
 #if 0
     temp_sensor.write_trip_low(-63.9375);
     wait(0.03);
-    temperature = temp_sensor.read_reg_as_temperature(DS1775_REG_THYST_LOW_TRIP);
+    temperature =
+        temp_sensor.read_reg_as_temperature(DS1775_REG_THYST_LOW_TRIP);
     printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
             temperature, temp_sensor.celsius_to_fahrenheit(temperature));
 
@@ -110,21 +109,19 @@
 
     printf("\r\n");
 
-
-    temp_sensor.read_cfg_reg(&cfg);
-    printf("Configuration Register = 0x%02Xh \r\n", cfg);
     for (i = 0; i < 8; i++) {
         /* Configure for 12 bit resolution, fault filter 2, 
            active low, interrupt, continous,
         */
-        temp_sensor.write_cfg(uint16_t(DS1775_CFG_RESOLUTION_12BIT |
+        temp_sensor.write_cfg(uint8_t(DS1775_CFG_RESOLUTION_12BIT |
             DS1775_CFG_FAULT_FILTER_6 | DS1775_CFG_OS_POLARITY_ACT_LOW |
             DS1775_CFG_INTERRUPT_MODE | DS1775_CFG_CONTINUOUS));
         wait(DS1775_WAIT_CONV_TIME_9BIT);
-        temperature = temp_sensor.read_reg_as_temperature(DS1775_REG_TEMPERATURE);
+        temperature =
+            temp_sensor.read_reg_as_temperature(DS1775_REG_TEMPERATURE);
         printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
             temperature, temp_sensor.celsius_to_fahrenheit(temperature));
-        temp_sensor.write_cfg(uint16_t(DS1775_CFG_RESOLUTION_12BIT |
+        temp_sensor.write_cfg(uint8_t(DS1775_CFG_RESOLUTION_12BIT |
             DS1775_CFG_FAULT_FILTER_6 | DS1775_CFG_OS_POLARITY_ACT_LOW |
             DS1775_CFG_INTERRUPT_MODE | DS1775_CFG_SHUTDOWN));
         wait(2); /*  leave it in shutdown mode for a while */
@@ -134,11 +131,11 @@
 
     printf("\r\n\r\n");
 
-
 #if 0
     temp_sensor.write_trip_low(-55.0f);
     wait(0.03);
-    temperature = temp_sensor.read_reg_as_temperature(DS1775_REG_THYST_LOW_TRIP);
+    temperature = 
+        temp_sensor.read_reg_as_temperature(DS1775_REG_THYST_LOW_TRIP);
     printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
             temperature, temp_sensor.celsius_to_fahrenheit(temperature));
 
@@ -149,7 +146,7 @@
             temperature, temp_sensor.celsius_to_fahrenheit(temperature));
     printf("\r\n\r\n");
 #endif
-  #endif
+
     /***************************************************************************
      * Call the C code version of the driver
      ***************************************************************************
@@ -172,54 +169,61 @@
     }
 
     ds1775_read_cfg_reg(&cfg, i2cBus);
-    printf("Configuration Register = 0x%04Xh \r\n", cfg);
-#if 0
+    printf("Configuration Register = 0x%02Xh \r\n", cfg);
 
 #if 0
     ds1775_write_trip_low(-63.9375, i2cBus);
     wait(0.03);
-    temperature = ds1775_read_reg_as_temperature(DS1775_REG_THYST_LOW_TRIP, i2cBus);
+    temperature = ds1775_read_reg_as_temperature(DS1775_REG_THYST_LOW_TRIP,
+        i2cBus);
     printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
             temperature, ds1775_celsius_to_fahrenheit(temperature));
 
     ds1775_write_trip_high(64.0625f, i2cBus);
     wait(0.03);
-    temperature = ds1775_read_reg_as_temperature(DS1775_REG_TOS_HIGH_TRIP, i2cBus);
+    temperature = ds1775_read_reg_as_temperature(DS1775_REG_TOS_HIGH_TRIP,
+        i2cBus);
     printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
             temperature, ds1775_celsius_to_fahrenheit(temperature));
 #endif
 
     printf("\r\n");
-    for (i = 0; i < 2; i++) {
-        ds1775_write_cfg(uint16_t(DS1775_CFG_FAULT_FILTER_4 | 
-            DS1775_CFG_INTERRUPT_MODE | DS1775_CFG_SHUTDOWN |
-            DS1775_CFG_EXTENDED_FORMAT| DS1775_CFG_CONV_RATE_0_25 | 
-            DS1775_CFG_RESOLUTION_10BIT | DS1775_CFG_ONE_SHOT_START),
+    for (i = 0; i < 8; i++) {
+        /* Configure for 12 bit resolution, fault filter 2, 
+           active low, interrupt, continous,
+        */
+        ds1775_write_cfg_reg(uint8_t(DS1775_CFG_RESOLUTION_12BIT |
+            DS1775_CFG_FAULT_FILTER_6 | DS1775_CFG_OS_POLARITY_ACT_LOW |
+            DS1775_CFG_INTERRUPT_MODE | DS1775_CFG_CONTINUOUS),
             i2cBus);
-        wait(DS1775_WAIT_CONV_RATE_0_25);
+        wait(DS1775_WAIT_CONV_TIME_9BIT);
         temperature = ds1775_read_reg_as_temperature(DS1775_REG_TEMPERATURE,
             i2cBus);
         printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
             temperature, temp_sensor.celsius_to_fahrenheit(temperature));
+        ds1775_write_cfg_reg(uint8_t(DS1775_CFG_RESOLUTION_12BIT |
+            DS1775_CFG_FAULT_FILTER_6 | DS1775_CFG_OS_POLARITY_ACT_LOW |
+            DS1775_CFG_INTERRUPT_MODE | DS1775_CFG_SHUTDOWN), i2cBus);
+        wait(2); /*  leave it in shutdown mode for a while */
     }
-    ds1775_read_reg(&cfg, DS1775_REG_CONFIGURATION, i2cBus);
-    printf("Configuration Register = 0x%04Xh \r\n", cfg);
+    ds1775_read_cfg_reg(&cfg, i2cBus);
+    printf("Configuration Register = 0x%02Xh \r\n", cfg);
 
 #if 0
-    temp_sensor.write_trip_low(-127.9375);
-    ds1775_write_trip_low(-127.9375, i2cBus);
+    ds1775_write_trip_low(-55, i2cBus);
     wait(0.03);
-    temperature = ds1775_read_reg_as_temperature(DS1775_REG_THYST_LOW_TRIP, i2cBus);
+    temperature = ds1775_read_reg_as_temperature(DS1775_REG_THYST_LOW_TRIP,
+        i2cBus);
     printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
             temperature, ds1775_celsius_to_fahrenheit(temperature));
 
-    ds1775_write_trip_high(129.0625f, i2cBus);
+    ds1775_write_trip_high(125.0f, i2cBus);
     wait(0.03);
-    temperature = ds1775_read_reg_as_temperature(DS1775_REG_TOS_HIGH_TRIP, i2cBus);
+    temperature = ds1775_read_reg_as_temperature(DS1775_REG_TOS_HIGH_TRIP,
+        i2cBus);
     printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
             temperature, ds1775_celsius_to_fahrenheit(temperature));
 #endif
-  #endif 
     printf("\r\n\r\n\r\n");