NRF5x: Add bug fix for the first timer read.

mprse · mprse · commit 7e222f2994e8 · 2018-06-19T08:47:04.000+02:00
It has been noticed that first read value can not be trusted.
diff --git a/targets/TARGET_NORDIC/TARGET_NRF5x/us_ticker.c b/targets/TARGET_NORDIC/TARGET_NRF5x/us_ticker.c
@@ -100,6 +100,9 @@ void us_ticker_init(void)
 
     nrf_timer_task_trigger(NRF_TIMER1, NRF_TIMER_TASK_START);
 
+    /* Bug fix. First value can't be trusted. */
+    nrf_timer_task_trigger(NRF_TIMER1, NRF_TIMER_TASK_CAPTURE1);
+
     us_ticker_initialized = true;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -100,6 +100,9 @@ void us_ticker_init(void)`
`100`	`100`
`101`	`101`	`nrf_timer_task_trigger(NRF_TIMER1, NRF_TIMER_TASK_START);`
`102`	`102`
	`103`	`+ /* Bug fix. First value can't be trusted. */`
	`104`	`+ nrf_timer_task_trigger(NRF_TIMER1, NRF_TIMER_TASK_CAPTURE1);`
	`105`	`+`
`103`	`106`	`us_ticker_initialized = true;`
`104`	`107`	`}`
`105`	`108`