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LibrePilot/flight/PiOS.posix/posix/pios_debug.c
Stacey Sheldon bfe6676eed exti: rewrite exti layer to improve portability
The exti layer now allows drivers to register interrupt callbacks
during board initialization.  All details of the driver using a
particular EXTI pin have been removed from the EXTI layer so it
can now be used on any board without board-specific modification.

This includes some nice refinements provided by Mike Smith during
initial review.  His original commits have been squashed into this
one.
2012-01-22 23:23:41 -05:00

97 lines
2.3 KiB
C

/**
******************************************************************************
* @addtogroup PIOS PIOS Core hardware abstraction layer
* @{
* @defgroup PIOS_DEBUG Debugging Functions
* @brief Debugging functionality
* @{
*
* @file pios_debug.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief Debugging Functions
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Project Includes */
#include "pios.h"
// Global variables
const char *PIOS_DEBUG_AssertMsg = "ASSERT FAILED";
/* Private Function Prototypes */
/**
* Initialise Debug-features
*/
void PIOS_DEBUG_Init(void)
{
}
/**
* Set debug-pin high
* \param pin 0 for S1 output
*/
void PIOS_DEBUG_PinHigh(uint8_t Pin)
{
}
/**
* Set debug-pin low
* \param pin 0 for S1 output
*/
void PIOS_DEBUG_PinLow(uint8_t Pin)
{
}
void PIOS_DEBUG_PinValue8Bit(uint8_t value)
{
}
void PIOS_DEBUG_PinValue4BitL(uint8_t value)
{
}
/**
* Report a serious error and halt
*/
void PIOS_DEBUG_Panic(const char *msg) __attribute__ ((noreturn))
{
#ifdef PIOS_COM_DEBUG
register int *lr asm("lr"); // Link-register holds the PC of the caller
PIOS_COM_SendFormattedStringNonBlocking(PIOS_COM_DEBUG, "\r%s @0x%x\r", msg, lr);
#endif
// tell the user whats going on on commandline too
fprintf(stderr,"CRITICAL ERROR: %s\n",msg);
// this helps debugging: causing a div by zero allows a backtrace
// and/or ends execution
int b = 0;
int a = (2/b);
b=a;
}
/**
* @}
* @}
*/