Configuring i2c

Author: MikeHLee

utils/i2c_helper.py

@@ -2,20 +2,19 @@
 import smbus2
 
 # Create a new SMBus instance on line 2
-bus = smbus2.SMBus(2)  
+bus = smbus2.SMBus(1)  
 
 if __name__ == "__main__":
 
     if sys.argv[1] == "set_rtcm":
         # Device i2c write address
-        device_address_write = 0xA2
-        device_address_read = 0xA3
+        device_address = 0x51
 
         # Register address
         register_address = 0x28
 
         # First, we need to read the current value of the register
-        current_value = bus.read_byte_data(device_address_read, register_address)
+        current_value = bus.read_byte_data(device_address, register_address)
 
         # Then, we need to clear the fourth bit (fifth from the left, little endian starting at 0)
         # We can do this by creating a mask where all bits are 1, except for the fourth bit, which is 0. 
@@ -24,5 +23,5 @@
         new_value = current_value & mask
 
         # Write the new value back to the register
-        bus.write_byte_data(device_address_write, register_address, new_value)
+        bus.write_byte_data(device_address, register_address, new_value)