I'd like to tie the MR pin with MCU reset pin so users can reset MCU with short click and hardware reset with long click. (please check above schematic)
However, MCU reset pin has pullup resistor around 10KR and 1uF Capacitor for filter.
In this case, Is it possible to function External NTC Monitoring (TS) without a problem?
Thank you in advance.
Hi Jiwon,
If the desire is to an MCU pin to read when the button is pressed with a button that is normally high, it might be good to use the following circuit:
This way, when the button press occurs, the MCU can be connected to the MCU_INPUT_TSMR signal and also read the duration that the button is pressed. You can then also add an NTC resistor from TS/MR to GND
If the desire is to use the MCU to drive the TSMR pin low with a GPIO pin, the following should work.
[Second image removed as it is incorrect]
This way, when the GPIO pin on the MCU is used to push the button (GPIO HIGH), the FET pulls the TS/MR pin low to push the button. You'll also be able to add an NTC resistor from TS/MR to GND with this configuration.
Let me know if there's any clarification needed.
Best Regards,
Anthony Pham
