nrf52820_microbit: Set I2C protocol to v1 until busy flag is implemented.
@@ -37,7 +37,12 @@ extern "C" {
#define I2C_SLAVE_HID (0x71U)
#define I2C_SLAVE_FLASH (0x72U)
+// Busy flag not yet implemented in nRF52
+#if defined(INTERFACE_NRF52820)
+#define I2C_PROTOCOL_VERSION (0x01)
+#else
#define I2C_PROTOCOL_VERSION (0x02)
+#endif
/*! i2c command Id type enumeration */
typedef enum cmdId_tag {
