Added script reading Voltage sensor

APSCT_CLK_I2C.py

@@ -31,6 +31,7 @@ READ_LOCK = True
 READ_ALL = False
 CHECK_EEPROM = True
 PWR_RST = True
+READ_SENSOR = True
 
 CLK_FREQ = '200MHz'
 dev_i2c_eeprom = I2C(0x50)
@@ -203,6 +204,41 @@ def wr_rd_eeprom(value=0x34):
         print(stri)
     return True
 
+def apsct_sensors():
+    addr = 0x74
+    Vref = 3.0
+    one_step = Vref/(2**(16+1))
+    I2C_device = I2C(addr, BUSNR=I2CBUSNR)
+    I2C_device.write_bytes(0xB8, 0xB0)
+    sleep(1)
+    ret_ack, ret_value = I2C_device.read_last_reg(3)
+    if ret_ack:
+        stri = "Return value input 0 : 0x{0} ".format(ret_value)
+        print(stri)
+        if int(ret_value, 16) >= 0xC00000:
+            print("over range")
+        else:
+            steps = (int(ret_value, 16) & 0x1FFFFF) >> 6
+            voltage = one_step * steps
+            string = "Voltage is {0:.4f}".format(voltage)
+            print(string)
+    else:
+        print("ACK nok")
+    sleep(1)
+    temp_slope = 93.5E-6 * 2**(16+1) / Vref
+    I2C_device.write_bytes(0xA0, 0xE0)
+    sleep(1)
+    ret_ack, ret_value = I2C_device.read_last_reg(3)
+    if ret_ack:
+        raw_value  = (int(ret_value, 16) & 0x1FFFFF) >> 6
+        temperature_K = (raw_value/temp_slope)
+        temperature = temperature_K-273
+        stri = "Return value : 0x{0} Temperature : {1:.2f} gr. C".format(ret_value, temperature)
+        print(stri)
+    else:
+        print("ACK nok")
+
+
 if CHECK_EEPROM :
     wr_rd_eeprom()
 
@@ -228,3 +264,5 @@ if READ_LOCK:
     else:
         print("Not locked --> PLL Error")
 
+if READ_SENSOR:
+    apsct_sensors()
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