Part Number:CC1310
Tool/software: Code Composer Studio
Dear,
How the voltage supervision circuit works on CC1310? Is it possible to select the voltage threshold to reset the IC?
My circuit is based on CC1310 some sensors powered by a CR2132 litium battery. However, I have a external DC/DC TPS610981 to supply all the circuit to keep the MCU and sensor at the same voltage and be able to use the battery until the end.
When I plug the battery, the circuit comes up and works fine, sinking around 4mA during 1 or 2 seconds and then going to low power when sinks around 15uA...
If I remove the battery for a short period (around 2 seconds) and plug it again, the circuit doesn't reset, and the power consuption goes to more than 100mA, sinking all the battery quickly.
I already made some tests assembling only the TPS to check if the problem is the DC/DC. The TPS works fine even on short reset times. And then, I added the sensor, that also works fine. So, I think that my problem is with CC1310, that during the reset time, reach a voltage that cannot reset the IC and when the power comes back, starts incorrectly.
I think if I set the Voltage Threshold of Voltage Supervision Circuit for somethinh around 2.8V (since the TPS always keep the 3.3V), this problem can be resolved.
So:
1) is it possible to set this voltage threshold?
2) any tip to avoid this behaivor? How about to change the capacitor value at MCU Reset Pin (currently 100nF)?
3) let me know if you are desagree with my conclusion.
I'm looking forward your feedback.
Thanks in advance...