1 files changed, 63 insertions, 0 deletions
diff --git a/os/hal/ports/AVR/XMEGA/ATXMEGAxxxA4U/hal_lld.c b/os/hal/ports/AVR/XMEGA/ATXMEGAxxxA4U/hal_lld.c
new file mode 100644
index 000000000..b6a466e00
--- /dev/null
+++ b/os/hal/ports/AVR/XMEGA/ATXMEGAxxxA4U/hal_lld.c
@@ -0,0 +1,63 @@
+/*
+    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    ATXMEGAxxxA4U/hal_lld.c
+ * @brief   AVR HAL subsystem low level driver code.
+ *
+ * @addtogroup HAL
+ * @{
+ */
+
+#include "hal.h"
+
+/*==========================================================================*/
+/* Driver exported variables.                                               */
+/*==========================================================================*/
+
+/*==========================================================================*/
+/* Driver local variables and types.                                        */
+/*==========================================================================*/
+
+/*==========================================================================*/
+/* Driver local functions.                                                  */
+/*==========================================================================*/
+
+/*==========================================================================*/
+/* Driver interrupt handlers.                                               */
+/*==========================================================================*/
+
+/*==========================================================================*/
+/* Driver exported functions.                                               */
+/*==========================================================================*/
+
+/**
+ * @brief   Low level HAL driver initialization.
+ *
+ * @notapi
+ */
+void hal_lld_init(void) {
+
+  OSC_CTRL |= OSC_RC32MEN_bm;             /* Setup 32Mhz crystal.           */
+     
+  while(!(OSC_STATUS & OSC_RC32MRDY_bm)); /* Wait the systeme clock to
+                                              stabilize.                    */
+     
+  CCP = CCP_IOREG_gc;                     /* Trigger protection mechanism.  */
+  CLK_CTRL = CLK_SCLKSEL_RC32M_gc;        /* Enable internal  32Mhz crystal.*/
+}
+
+/** @} */