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-rw-r--r--chip/nrf51/config_chip.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/chip/nrf51/config_chip.h b/chip/nrf51/config_chip.h
index 1b39439681..9de7b1eb76 100644
--- a/chip/nrf51/config_chip.h
+++ b/chip/nrf51/config_chip.h
@@ -27,6 +27,9 @@
/* Maximum number of deferrable functions */
#define DEFERRABLE_MAX_COUNT 8
+/* Number of I2C ports */
+#define I2C_PORT_COUNT 2
+
/*
* --- chip variant settings ---
*/