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Diffstat (limited to 'os/hal/ports/NRF51/NRF51822/hal_lld.h')
-rw-r--r--os/hal/ports/NRF51/NRF51822/hal_lld.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/os/hal/ports/NRF51/NRF51822/hal_lld.h b/os/hal/ports/NRF51/NRF51822/hal_lld.h
index 1cc9057..b685667 100644
--- a/os/hal/ports/NRF51/NRF51822/hal_lld.h
+++ b/os/hal/ports/NRF51/NRF51822/hal_lld.h
@@ -44,9 +44,11 @@
/*===========================================================================*/
/*===========================================================================*/
-/* Derived constants and error checks. */
+/* Driver constants and error checks. */
/*===========================================================================*/
+#define NRF51_LFCLK_FREQUENCY 32768
+
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/