Part Number: CC2642R
Tool/software: Code Composer Studio
Hello,
I'm trying to get a handle on using the CC2642 and I'm trying to setup a sample project that is showing off the low power nature of this microcontroller (I'd like to show something that is showing less than 1mW of power consumption with sparse Bluetooth messages).
I'm starting from the Project Zero example, but I'm having trouble getting it to be low power, and I'm wondering if maybe it's not entering sleep mode?
Here are my results for power consumption measured using the EnergyTrace feature in Code Composer (I'm using this with a CC26x2 LaunchPad (which actually has a CC2652 rev E on board):
With the Project Zero example unaltered, the power during advertising is ~2.7mW and the power during a connection with a phone is ~3.5mW.
To reduce I went into the syscfg file and changed the Tx power from 5dBm to 0dBm. However, the power consumption remained exactly the same.
I then changed the min and max connection interval from 15ms and 45ms to 800ms and 1000ms.
This slightly reduced the power consumption during the connected state from 3.5mW to 3.2mW, but this is still a huge amount of power for such a low connection interval.
Is there something else I should be doing to reduce the power? I was able to get lower power numbers using the very old CC2540, so I'm certain that I'm not doing something correctly.
Any help would be much appreciated!
