udhay_cit
Full Member level 6
Dear friends, i am new to PIC32 & i'm using PIC32MX564F128H microcontroller. Operating voltage of uC is 3.3V. I need to interface a GSM module with PIC32 microcontroller. The STATUS pin is delivering output voltage of 2.78V, but the microcontroller not recognizing this voltage as logic 1.
If i connect a 3.3V supply directly it sense it as a logic 1.
I am using RG3 pin for this connection & it is a schemitt trigger input. As per the datasheet it should sense the voltage of 0.8*VDD=2.64V as logic 1. But i am giving 2.78V & the uC not able to sense this why?
Please ask me is there any other parameter you need to know...
Thanks & Regards
Udhay
If i connect a 3.3V supply directly it sense it as a logic 1.
I am using RG3 pin for this connection & it is a schemitt trigger input. As per the datasheet it should sense the voltage of 0.8*VDD=2.64V as logic 1. But i am giving 2.78V & the uC not able to sense this why?
Please ask me is there any other parameter you need to know...
Thanks & Regards
Udhay