Dear All
The ADFM (bit 7 ) of ADCON1 register is used for result justification. please advice me what is the benefit this justification and what kind of Technic we can use, using this justification
This is reference to 16f877a MCU
Please advice
Thanks in advanc
I need a another advice which is,
1.In ADC we can use VREF to reduce the step size. my problem is how we apply (-) VREF
2. If we use (+) VREF as 3V and (-) VREf as -2 volt, how we calculate the step size
please help
As for calculating the step size its always the voltage range / 1024 ie 5v /1024 or 2.5/1024 etc.
If you have got a negative voltage that needs to be read, eg a ph probe then you need an op amp to convert it.
See Nigels ADC tutorial for details of how its done.
The ADC module is working while The device in the SLEEP mode. As I know in the SLEEP mode the Fosc is stopped. so my question is, how ADC module will functioning while Fosc is stopped
please advice