Hi, we are currently trying to reduce the power consumption on our product that uses an nrf52810.
An 1k pull-down resistor has been used on the SWDIO pin, but I don't really know why, as it seems that it induces an unnecessary current (there is a 3V voltage present on this pin), and from the documentation, an internal resistor is already present.
Here is the BLE part of ou schematic:
Can you please confirm (or not) the possibility to remove this resistor.
Thank you,
Olivier
Hello,
In these applications we have done, SWDIO and SWDCLK are directly connected, and the 52810 official manual reference design does not mention the need for pull-down resistors. It is recommended to follow the circuit design in the official manual.
Help it helps
BR./Zara Wu (RF-star technology)
Hi,
We would always recommend (as Zara Wu mentioned) , to follow our reference design which is as follows:
You can also visit our infocenter for further details.
Best Regards,
Priyanka
