Simple answer- you cannot do that.
You should design your project with active low outputs to account for the High-Z input state at power on. Almost every microcontroller, I know, behaves...
Hi Acetronics2,
thanks for your reply.
To be accurate, during power on, these I/Os turn on and off (and then stay off) very quickly (like a flash). The idea is to stop that high-low behavior.
no defined I/Os state before you set it ... :rolleyes::rolleyes::rolleyes:
the one and only way is an external pull up or down resistor, as I/Os are placed in an INPUT state ( High impedance ) @...
Hi guys,
quick question...
Is there a way (somewhere on the datasheet for example) to know what are the I/O pins state during power up?
I've noticed that some I/O pins (on my 18F2580 MCU)...
Hello, this is a website about ICs. If you need more information about ICs, you can click the link to view it. :微笑::微笑:
[/URL][URL]https://www.zouser.com/
I will not stick to specific PIC.
Any one that can do it is OK with me. K42 is most likely the one.
Thanks Richard,
Ioannis
Hello tumbleweed
About the resistor I used 2k for 1Mhz as for the AN989 even thought the test was done using an LC on that document.
It's not so easy to get the FC serie running from PBP3, so...
one panel
https://youtu.be/ADqMRU4rcBg
what chip what osc ?
a 16f18426 can do it @8mhz
a 18f27q43 can do it at any fosc
k42 family is a likely candidate too
Re: I/O Pin status during startup
Greetings,
PaulMaker Today, 09:58thank you Jerson for your reply.
Regarding "design your project with active low outputs to account for the High-Z input state at power on", what do you mean exactly?
If, for...