mbed_board.c

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2013 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 #include <stdio.h>
00017 #include "hal/gpio_api.h"
00018 #include "platform/mbed_wait_api.h"
00019 #include "platform/mbed_toolchain.h"
00020 #include "platform/mbed_interface.h"
00021 #include "platform/mbed_critical.h"
00022 #include "hal/serial_api.h"
00023 
00024 #if DEVICE_SERIAL
00025 extern int stdio_uart_inited;
00026 extern serial_t stdio_uart;
00027 #endif
00028 
00029 WEAK void mbed_die(void) {
00030 #if !defined (NRF51_H) && !defined(TARGET_EFM32)
00031     core_util_critical_section_enter();
00032 #endif
00033     gpio_t led_err; gpio_init_out(&led_err, LED1);
00034 
00035     while (1) {
00036         for (int i = 0; i < 4; ++i) {
00037             gpio_write(&led_err, 1);
00038             wait_ms(150);
00039             gpio_write(&led_err, 0);
00040             wait_ms(150);
00041         }
00042 
00043         for (int i = 0; i < 4; ++i) {
00044             gpio_write(&led_err, 1);
00045             wait_ms(400);
00046             gpio_write(&led_err, 0);
00047             wait_ms(400);
00048         }
00049     }
00050 }
00051 
00052 void mbed_error_printf(const char* format, ...) {
00053     va_list arg;
00054     va_start(arg, format);
00055     mbed_error_vfprintf(format, arg);
00056     va_end(arg);
00057 }
00058 
00059 void mbed_error_vfprintf(const char * format, va_list arg) {
00060 #if DEVICE_SERIAL
00061 #define ERROR_BUF_SIZE      (128)
00062     core_util_critical_section_enter();
00063     char buffer[ERROR_BUF_SIZE];
00064     int size = vsnprintf(buffer, ERROR_BUF_SIZE, format, arg);
00065     if (size > 0) {
00066         if (!stdio_uart_inited) {
00067             serial_init(&stdio_uart, STDIO_UART_TX, STDIO_UART_RX);
00068         }
00069 #if MBED_CONF_PLATFORM_STDIO_CONVERT_NEWLINES
00070         char stdio_out_prev = '\0';
00071         for (int i = 0; i < size; i++) {
00072             if (buffer[i] == '\n' && stdio_out_prev != '\r') {
00073                  serial_putc(&stdio_uart, '\r');
00074             }
00075             serial_putc(&stdio_uart, buffer[i]);
00076             stdio_out_prev = buffer[i];
00077         }
00078 #else
00079         for (int i = 0; i < size; i++) {
00080             serial_putc(&stdio_uart, buffer[i]);
00081         }
00082 #endif
00083     }
00084     core_util_critical_section_exit();
00085 #endif
00086 }