Exercise $2$

$1-$ What would be the value in TPM$0\_$MOD of the KL$25$ microcontroller to yield the maximal

sampling rate of its ADC converter using TOF of TPM$0$ module for triggering the start of the

ADC conversion. Assume that the ADCK clock is selected to be its Bus clock, the frequency of

which is set to $24$ MHz

$2-$ Design the circuit conditioning of the ADC module if the analog signal ranges from $0\mathrm{.}5$ mV to

$+0\mathrm{.}5$ mV$,$ vref $+=3\mathrm{.}3$ V and Vref$-=-3\mathrm{.}3$ V$,$ and that the minimum quantization error is sought.

$3-$ Provide the proper values of the associated KL$25$ control registers corresponding to the above

constraint assuming that:

a$.$ The analog signal is fed to channel $10$ of the KL$25$ ADC module

b$.$ The analog signal is a differential signal $($i$.$e$.$ not single ended$)$

c$.$ Vref$+(3\mathrm{.}3$ Volts$)$ and vref$-(-3\mathrm{.}3$ V$)$ are used

d$.$ Number of bits sought in ADC$0\_$R$0$ is signed $13$ bits