cfg_rtt_default.h File Reference
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Default RTT configuration for nRF52 based boards. More...

Detailed Description

Default RTT configuration for nRF52 based boards.

Author
Alexandre Abadie alexa.nosp@m.ndre.nosp@m..abad.nosp@m.ie@i.nosp@m.nria..nosp@m.fr

Definition in file cfg_rtt_default.h.

Go to the source code of this file.

Real time counter configuration

#define RTT_DEV   (1) /* NRF_RTC1 */
 
#define RTT_MAX_VALUE   (0x00ffffff) /* 24bit */
 
#define RTT_MAX_FREQUENCY   (32768U) /* in Hz */
 
#define RTT_MIN_FREQUENCY   (8U) /* in Hz */
 
#define RTT_CLOCK_FREQUENCY   (32768U) /* in Hz, LFCLK*/
 
#define RTT_MIN_OFFSET   (3U)
 Default offset of 2 ticks is not enough, see figures 8 and 9 in https://docs.nordicsemi.com/bundle/ps_nrf52840/page/rtc.html.
 
#define RTT_FREQUENCY   (1024U) /* in Hz */