diff options
Diffstat (limited to 'src/systemcmds/tests/test_uart_loopback.c')
| -rw-r--r-- | src/systemcmds/tests/test_uart_loopback.c | 70 |
1 files changed, 18 insertions, 52 deletions
diff --git a/src/systemcmds/tests/test_uart_loopback.c b/src/systemcmds/tests/test_uart_loopback.c index 3be152004..f1d41739b 100644 --- a/src/systemcmds/tests/test_uart_loopback.c +++ b/src/systemcmds/tests/test_uart_loopback.c @@ -1,8 +1,6 @@ /**************************************************************************** - * px4/sensors/test_gpio.c * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Lorenz Meier <lm@inf.ethz.ch> + * Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -14,7 +12,7 @@ * 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 + * 3. Neither the name PX4 nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * @@ -33,9 +31,11 @@ * ****************************************************************************/ -/**************************************************************************** - * Included Files - ****************************************************************************/ +/** + * @file test_uart_loopback.c + * Tests the uart outputs + * + */ #include <nuttx/config.h> @@ -55,40 +55,6 @@ #include <math.h> #include <float.h> - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Types - ****************************************************************************/ - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -/**************************************************************************** - * Public Data - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: test_led - ****************************************************************************/ - int test_uart_loopback(int argc, char *argv[]) { @@ -97,11 +63,11 @@ int test_uart_loopback(int argc, char *argv[]) int uart5_nwrite = 0; int uart2_nwrite = 0; - int uart1 = open("/dev/ttyS0", O_RDWR | O_NOCTTY); // + /* opening stdout */ + int stdout_fd = 1; - /* assuming NuttShell is on UART1 (/dev/ttyS0) */ - int uart2 = open("/dev/ttyS1", O_RDWR | O_NONBLOCK | O_NOCTTY); // - int uart5 = open("/dev/ttyS2", O_RDWR | O_NONBLOCK | O_NOCTTY); // + int uart2 = open("/dev/ttyS1", O_RDWR | O_NONBLOCK | O_NOCTTY); + int uart5 = open("/dev/ttyS2", O_RDWR | O_NONBLOCK | O_NOCTTY); if (uart2 < 0) { printf("ERROR opening UART2, aborting..\n"); @@ -113,7 +79,7 @@ int test_uart_loopback(int argc, char *argv[]) exit(uart5); } - uint8_t sample_uart1[] = {'C', 'O', 'U', 'N', 'T', ' ', '#', '\n'}; + uint8_t sample_stdout_fd[] = {'C', 'O', 'U', 'N', 'T', ' ', '#', '\n'}; uint8_t sample_uart2[] = {'C', 'O', 'U', 'N', 'T', ' ', '#', 0}; uint8_t sample_uart5[] = {'C', 'O', 'U', 'N', 'T', ' ', '#', 0}; @@ -121,7 +87,7 @@ int test_uart_loopback(int argc, char *argv[]) for (i = 0; i < 1000; i++) { // printf("TEST #%d\n",i); - write(uart1, sample_uart1, sizeof(sample_uart1)); + write(stdout_fd, sample_stdout_fd, sizeof(sample_stdout_fd)); /* uart2 -> uart5 */ r = write(uart2, sample_uart2, sizeof(sample_uart2)); @@ -130,7 +96,7 @@ int test_uart_loopback(int argc, char *argv[]) uart2_nwrite += r; // printf("TEST #%d\n",i); - write(uart1, sample_uart1, sizeof(sample_uart1)); + write(stdout_fd, sample_stdout_fd, sizeof(sample_stdout_fd)); /* uart2 -> uart5 */ r = write(uart5, sample_uart5, sizeof(sample_uart5)); @@ -139,7 +105,7 @@ int test_uart_loopback(int argc, char *argv[]) uart5_nwrite += r; // printf("TEST #%d\n",i); - write(uart1, sample_uart1, sizeof(sample_uart1)); + write(stdout_fd, sample_stdout_fd, sizeof(sample_stdout_fd)); /* try to read back values */ do { @@ -150,7 +116,7 @@ int test_uart_loopback(int argc, char *argv[]) } while (r > 0); // printf("TEST #%d\n",i); - write(uart1, sample_uart1, sizeof(sample_uart1)); + write(stdout_fd, sample_stdout_fd, sizeof(sample_stdout_fd)); do { r = read(uart2, sample_uart5, sizeof(sample_uart5)); @@ -160,7 +126,7 @@ int test_uart_loopback(int argc, char *argv[]) } while (r > 0); // printf("TEST #%d\n",i); -// write(uart1, sample_uart1, sizeof(sample_uart5)); +// write(stdout_fd, sample_stdout_fd, sizeof(sample_uart5)); } for (i = 0; i < 200000; i++) { @@ -181,7 +147,7 @@ int test_uart_loopback(int argc, char *argv[]) } - close(uart1); + close(stdout_fd); close(uart2); close(uart5); |