Instructions

227 C-Control Pro IDE

5.3.2.1

AC_Disable

Analog Compare Functions Example

Syntax

void AC_Disable(byte ctrl);

Sub AC_Disable(ctrl As Byte);

Description

Turns the specified Analog Comparator off.

Parameter

ctrl Analog Comparator (0 - 1)

5.3.2.2 AC_Enable

Analog Compare Functions Example

Syntax

void AC_Enable(byte ctrl, byte in_pos, byte in_neg);

Sub AC_Enable(ctrl As Byte, in_pos As Byte, in_neg As Byte);

Description

Turns the Analog Comparator on. The Atmel AVR32 has 2 Analog Comparators. The table shows

which port inputs can be used for which comparator (Ctrl 0, Ctrl 1), and for what input parameter (in_pos or

in_neg). Only inputs on the same comparator can be compared, but both comparators can work on the

same time. A hysteresis of 0 is used.

Due to the used TQFP100 version of the processor, Analog Comparator 0 has fewer choices for

the selection of the input pins than Comparator 1.

Parameter

ctrl Analog Comparator (0 - 1)

in_pos Input V_ip

in_neg Input V_in

Table Analog Comparator Pin Selection

#define

Port

Value

Ctrl 0

Ctrl 1

AC_AC0AP0

P18

in_pos