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Merge pull request #21743 from BOZHENG001/fix-rtt

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nrf52/cfg_rtt_default: fix rtt min offset
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mguetschow 2025-09-30 20:16:13 +00:00 committed by GitHub
commit 99cd4617a5
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boards/common/nrf52/include/cfg_rtt_default.h
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@ -32,6 +32,11 @@ extern "C" {
#define RTT_MAX_FREQUENCY (32768U) /* in Hz */
#define RTT_MIN_FREQUENCY (8U) /* in Hz */
#define RTT_CLOCK_FREQUENCY (32768U) /* in Hz, LFCLK*/
/**
* 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_MIN_OFFSET (3U)
#ifndef RTT_FREQUENCY
#define RTT_FREQUENCY (1024U) /* in Hz */