I would like to know how to implement reset button on nRF51822. Image of schematic would be very useful, but good explanation should be enough. Thank you in advance.
I already have SWDIO/nRESET (pin 23) connected from ARM programming connector.
I would like to know how to implement reset button on nRF51822. Image of schematic would be very useful, but good explanation should be enough. Thank you in advance.
I already have SWDIO/nRESET (pin 23) connected from ARM programming connector.
Hi Håkon,
I was planning to use an active-low reset switch in parallel to SWDIO just like Michal describes. The -EK shows 150Ω in series with the switch to ground.
Is the value of the pull-up 13kΩ similar to the GPIO?
Also, can you comment on whether there is an internal capacitor to GND on the reset line or a Schmidt trigger on the reset line's input to de-glitch the transitions?
Thanks, William
Oh' sorry, did not answer the full post. There is no internal capacitor, other than the stray capacitances that you have in the pad connection and PCB tracks (totals <10 pF-area).
Best regards Håkon
Oh' sorry, did not answer the full post. There is no internal capacitor, other than the stray capacitances that you have in the pad connection and PCB tracks (totals <10 pF-area).
Best regards Håkon