Low-level RTT (Real Time Timer) peripheral driver interface definitions. More...
Detailed Description
#include <stdint.h>#include "periph_conf.h"
Include dependency graph for rtt.h: This graph shows which files directly or indirectly include this file:Go to the source code of this file.
Macros | |
| #define | RTT_FREQUENCY |
| The desired frequency for the RTT. | |
| #define | RTT_MAX_VALUE |
| The maximum value for the RTT counter, must be (2^n - 1) | |
| #define | RTT_MIN_OFFSET (2U) |
| The minimum offset to correctly set an rtt callback. More... | |
| #define | RTT_US_TO_TICKS(us) (RTT_SEC_TO_TICKS(us) / 1000000UL) |
| Convert microseconds to rtt ticks. More... | |
| #define | RTT_MS_TO_TICKS(ms) (RTT_SEC_TO_TICKS(ms) / 1000UL) |
| Convert milliseconds to rtt ticks. More... | |
| #define | RTT_SEC_TO_TICKS(sec) (sec * RTT_FREQUENCY) |
| Convert seconds to rtt ticks. More... | |
| #define | RTT_MIN_TO_TICKS(min) (RTT_SEC_TO_TICKS((min) * 60)) |
| Convert minutes to rtt ticks. More... | |
| #define | RTT_TICKS_TO_US(ticks) ((uint64_t)(ticks) * 1000000UL / RTT_FREQUENCY) |
| Convert rtt ticks to microseconds. More... | |
| #define | RTT_TICKS_TO_MS(ticks) (RTT_TICKS_TO_US(ticks) / 1000) |
| Convert rtt ticks to milliseconds. More... | |
| #define | RTT_TICKS_TO_SEC(ticks) (RTT_TICKS_TO_MS(ticks) / 1000) |
| Convert rtt ticks to seconds. More... | |
| #define | RTT_TICKS_TO_MIN(ticks) (RTT_TICKS_TO_SEC(ticks) / 60) |
| Convert rtt ticks to minutes. More... | |
Typedefs | |
| typedef void(* | rtt_cb_t) (void *arg) |
| Signature for the alarm callback. More... | |
Functions | |
| void | rtt_init (void) |
| Initialize RTT module. | |
| void | rtt_set_overflow_cb (rtt_cb_t cb, void *arg) |
| Set a callback for the counter overflow event. More... | |
| void | rtt_clear_overflow_cb (void) |
| Clear the overflow callback. | |
| uint32_t | rtt_get_counter (void) |
| Get the current RTT counter. More... | |
| void | rtt_set_counter (uint32_t counter) |
| Set the RTT counter to a specified value. More... | |
| void | rtt_set_alarm (uint32_t alarm, rtt_cb_t cb, void *arg) |
| Set an alarm for RTT to the specified absolute target time. More... | |
| uint32_t | rtt_get_alarm (void) |
| Get the value of a set alarm. More... | |
| void | rtt_clear_alarm (void) |
| Clear any set alarm, do nothing if nothing set. | |
| void | rtt_poweron (void) |
| Turn the RTT hardware module on. | |
| void | rtt_poweroff (void) |
| Turn the RTT hardware module off. | |
