1 files changed, 131 insertions, 0 deletions
diff --git a/src/systemcmds/tests/test_uart_send.c b/src/systemcmds/tests/test_uart_send.c
new file mode 100644
index 000000000..7e1e8d307
--- /dev/null
+++ b/src/systemcmds/tests/test_uart_send.c
@@ -0,0 +1,131 @@
+/****************************************************************************
+ * px4/sensors/test_gpio.c
+ *
+ *  Copyright (C) 2012 PX4 Development Team. All rights reserved.
+ *            Lorenz Meier <lm@inf.ethz.ch>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "tests.h"
+
+#include <math.h>
+#include <float.h>
+#include <drivers/drv_hrt.h>
+
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: test_led
+ ****************************************************************************/
+
+int test_uart_send(int argc, char *argv[])
+{
+	/* input handling */
+	char *uart_name = "/dev/ttyS3";
+
+	if (argc > 1) uart_name = argv[1];
+
+	/* assuming NuttShell is on UART1 (/dev/ttyS0) */
+	int test_uart = open(uart_name, O_RDWR | O_NONBLOCK | O_NOCTTY); //
+
+	if (test_uart < 0) {
+		printf("ERROR opening UART %s, aborting..\n", uart_name);
+		return test_uart;
+
+	} else {
+		printf("Writing to UART %s\n", uart_name);
+	}
+
+	char sample_test_uart[25];// = {'S', 'A', 'M', 'P', 'L', 'E', ' ', '\n'};
+
+	int i, n;
+
+	uint64_t start_time = hrt_absolute_time();
+
+	for (i = 0; i < 30000; i++) {
+		n = sprintf(sample_test_uart, "SAMPLE #%d\n", i);
+		write(test_uart, sample_test_uart, n);
+	}
+
+	int interval = hrt_absolute_time() - start_time;
+
+	int bytes = i * sizeof(sample_test_uart);
+
+	printf("Wrote %d bytes in %d ms on UART %s\n", bytes, interval / 1000, uart_name);
+
+	close(test_uart);
+
+	return 0;
+}