Basic implementation of Xbus message parsing and generation for embedded processors. The code has no dependencies and should also work for other MCU architectures than ARM provided a C99 compiler is available.

Dependents:   MTi-1_example_LPC1768 MTi-1_rikbeun MTi-1_example MTi-1_example

For an example of using the Xbus library to communicate with an MTi-1 series device using a full-duplex UART see:

Import programMTi-1_example

Example of using Xbus library to communicate with an MTi-1 series device using a full-duplex UART connection.

Revision:
0:eb25b1785ee4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xbusparser.h	Tue Jun 16 07:54:23 2015 +0000
@@ -0,0 +1,76 @@
+/*!
+ * \file
+ * \copyright Copyright (C) Xsens Technologies B.V., 2015.
+ *
+ * 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.
+ */
+
+#ifndef __XBUSPARSER_H
+#define __XBUSPARSER_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include "xbusmessage.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct XbusParser;
+
+/*!
+ * \brief Callback function structure for use with the XbusParser.
+ */
+struct XbusParserCallback
+{
+	/*!
+	 * \brief Allocate a buffer for message reception.
+	 * \param bufSize The size of the buffer to allocate.
+	 * \returns Pointer to buffer to use for message reception, or NULL if
+	 * a buffer cannot be allocated.
+	 *
+	 * \note It is the resposibility of the user to deallocate the message
+	 * data buffers pointed to by XbusMessage structures passed to the
+	 * handleMessage() callback function.
+	 */
+	void* (*allocateBuffer)(size_t bufSize);
+
+	/*!
+	 * \brief Deallocate a buffer that was previously allocated by a call to
+	 * allocateBuffer.
+	 */
+	void (*deallocateBuffer)(void const* buffer);
+
+	/*!
+	 * \brief Handle a received message.
+	 *
+	 * \note If the passed XbusMessage structure has a non-null data pointer
+	 * then it is the responsibility of the user to free this once handling
+	 * of the message is complete.
+	 */
+	void (*handleMessage)(struct XbusMessage const* message);
+};
+
+size_t XbusParser_mem(void);
+struct XbusParser* XbusParser_create(struct XbusParserCallback const* callback);
+void XbusParser_destroy(struct XbusParser* parser);
+struct XbusParser* XbusParser_init(void* parserMem, struct XbusParserCallback const* callback);
+
+void XbusParser_parseByte(struct XbusParser* parser, uint8_t byte);
+void XbusParser_parseBuffer(struct XbusParser* parser, uint8_t const* buf, size_t bufSize);
+
+#ifdef __cplusplus
+}
+#endif // extern "C"
+
+#endif // __XBUSPARSER_H