This is an old revision of the document!
Timer Input
Programming Example
The code snippet bellow shows how to configure and use a GPIO pin as input.
#include "reg_stm32f4xx.h" /* TO-DODELI DOO. */
Configuration Registers
CR1
Configuration register 1
| CKD | 00 | tDTS ⇒ tCKINT |
| 01 | tDTS ⇒ 2 · tCKINT | |
| 10 | tDTS ⇒ 4 · tCKINT | |
| 11 | Reserved |
SMCR
Slave mode control register
| ETP | 0 | ETR is noninverted, active at high level or rising edge. |
| 1 | ETR is inverted, active at low level or falling edge. | |
| ETPS | 00 | Prescaler off. |
| 01 | fETPR / 2 | |
| 10 | fETPR / 4 | |
| 11 | fETPR / 8 | |
| ETF | 0 | |
| 1 | ||
Legend
