How to configuarte sample time of MPC5746R SAR ADC

[曾经怀念]

Hi all

   There are some requirements in MPC5746R datasheet 

   But only the INPSAMP register can config

extra information

SAR CLK = 50 MHZ

ADC_MCR[ADCLKSEL] = 1(ADC clock frequency is equal to bus clock)

One shot mode

configuration tool ：EB Tresos

thanks

[PetrS]

Hi,

conversion time is discussed and explained with examples within chapter 35.2.5.12 Conversion time of the device Reference Manual. INSAMP must be set to value you do not exceed datasheet specification (tsample). 

BR, Petr  

[曾经怀念]

Hi petr

   it's my mistake. 

   so the min sample time = 0.25 * 50 = 12.5, is the better config for sample time larger than 13

[PetrS]

you are right.

BR, Petr