Hi,
Does the analog input pin with
VREFH = 1.8V,
CSACAL = 1 and
3V3 GPIO_NVCC mode
need a protection against voltage levels above 1.8V or is a protection for values above 3.96V sufficient?
Thanks for the help!
Solved! Go to Solution.
Hi @ak2 ,
From the RT1170RM, we can know some information:
But, if you define CSACAL = 1, then it is Full scale (Factor of 1),
So, the input voltage should follow this table:
can't above 1.8V, thanks.
If the CSACAL = 0, you can input 3.3V.
Wish it helps you!
Best Regards,
Kerry
Hi @ak2 ,
From the RT1170RM, we can know some information:
But, if you define CSACAL = 1, then it is Full scale (Factor of 1),
So, the input voltage should follow this table:
can't above 1.8V, thanks.
If the CSACAL = 0, you can input 3.3V.
Wish it helps you!
Best Regards,
Kerry
Thank you!
As you mention, I will set CSCALE to 0.