Can I mask NRST signal input temporarily?

[yoshi]

Posted on September 05, 2017 at 18:12

Hi there,

I am coding STM32F030F4 using CubeMX generated EWARM project.

All ICs are monitored by single voltage supervisor including F030, but unfortunately one of IC has design problem and it need a 'reset pulse' after start up.

I have to generate this reset pulse on F030 and the signal manipulates supervisor's manual reset input that reset also F030 itself.

So I would like to add NRST input mask routine for F030 while reset pulse sending operation.

Can I do this?

tyro

[Tesla DeLorean]

Posted on September 05, 2017 at 18:25

No

Going to need to modify the board to drive a GPIO based reset to your problematic device.

You could generate a reset on the pin from the STM32.

[yoshi]

Posted on September 06, 2017 at 06:29

Hello Clive One,

Ok I'll redesign my board to GPIO based reset control.

Thank you for your advice.

[Tesla DeLorean]

Posted on September 06, 2017 at 06:34

Can you mod the one you have to check the solution?

Could you cut the NRST line at the STM32? It should be able to reset itself