This content has been marked as final.
Show 3 replies
-
1. Re: Initial startup configuration of I/Os
bob.marlowe Nov 29, 2016 2:13 AM (in response to anands)Welcome in the forum, Anand.
There are 3 stages for PSoC4 GPIO pins during power-up:
- Until the minimum voltage reached (1.8V) the outputs are undefined.
- Outputs go High-Z until programmed during boot
- Outputs follow the programming
To keep the pins to a defined state during the High-Z phase you will need some resistors to force the states to whatever you want.
Bob
-
2. Re: Initial startup configuration of I/Os
anands Nov 29, 2016 3:02 AM (in response to anands)Thank You Bob,
But when checked the data sheet the reset option tab for GPIO pin is only applicable for PSoC 3 and PSoC5, and I am using PSoC4, Is there any other way to configure it.
-
3. Re: Initial startup configuration of I/Os
bob.marlowe Nov 29, 2016 3:27 AM (in response to anands)No option for PSoC4, use resistors.
Bob