HELP ADC 8 bit and 10 bits

[iukhan]

Suppose that the ADC directive is set to 10 i.e. #device ADC=10

I want 2 analog inputs as 10 bits and the rest as 8 bits. Is this possible? if so how?

I know that adc value store in 16 bit variable can be converted to 8 bit but this will require more processing. I just want to use the code efficiently. Please help

[Ttelmah]

There is only one ADC. The inputs are _multiplexed_ to this. Any setting is global.

However it would depend on what you want to do with the ten bit value?.

Key is that if you used *=16, you would get a 16bit value (just with the low 6 bits = 0). Then 'make8' could access the top byte of this, in a single machine instruction. Much more efficient that trying to rotate the 10 bit value right twice to get the 8bit result. However you'd then have a 16bit value for the 10bit ones. If though you are doing something like scaling this already, just divide your scale factor by 64....

Best Wishes