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authorKevin O'Connor <kevin@koconnor.net>2018-07-27 14:24:01 -0400
committerKevin O'Connor <kevin@koconnor.net>2018-08-06 23:36:05 -0400
commit5633e6c249270f6c2361a754e8c330c88c014ecf (patch)
tree414270945157a025033a7c82e98e506bf403e181 /lib/samd21/samd21a/include/system_samd21.h
parent50142cc1b34c1c414910cffc5bb42930874ca3d0 (diff)
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lib: Add Atmel SAMD21 cmsis headers
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'lib/samd21/samd21a/include/system_samd21.h')
-rw-r--r--lib/samd21/samd21a/include/system_samd21.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/samd21/samd21a/include/system_samd21.h b/lib/samd21/samd21a/include/system_samd21.h
new file mode 100644
index 00000000..ed948b63
--- /dev/null
+++ b/lib/samd21/samd21a/include/system_samd21.h
@@ -0,0 +1,48 @@
+/**
+ * \file
+ *
+ * \brief Low-level initialization functions called upon chip startup
+ *
+ * Copyright (c) 2018 Microchip Technology Inc.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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 Licence 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.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#ifndef _SYSTEM_SAMD21_H_INCLUDED_
+#define _SYSTEM_SAMD21_H_INCLUDED_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
+
+void SystemInit(void);
+void SystemCoreClockUpdate(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SYSTEM_SAMD21_H_INCLUDED */