AN3248

List of figures

Doc ID 17758 Rev 3

3/17

List of figures

Figure 1.

Sensor output connection to COMP2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 2.

Sensor output connection to COMP1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 3.

Power consumption in an analog voltage monitoring application . . . . . . . . . . . . . . . . . . . . . 5

Figure 4.

COMP2 configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 5.

Analog comparators combined in window mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 6.

Analog watchdog during Stop mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 7.

COMP2 with output redirection feature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 8.

Pulse width measurement: COMP2 output redirection to timer . . . . . . . . . . . . . . . . . . . . . 10

Figure 9.

PWM signal control: COMP2 output redirection to timer . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 10.

RC network connection for capacitance measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 11.

Capacitance measurement using COMP2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 12.

Connecting an LDR resistor to an STM32L1 device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 13.

Comparator output behavior versus light intensity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15