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/*********************************************************************************************************************
* File Name : $Source: fdl_user.c $
* Mod. Revision : $Revision: 1.17 $
* Mod. Date : $Date: 2016/05/31 16:15:27JST $
* Device(s) : RV40 Flash based RH850 microcontroller
* Description : library related functions, which may be edited by the user
*********************************************************************************************************************/
/*********************************************************************************************************************
* DISCLAIMER
* This software is supplied by Renesas Electronics Corporation and is only intended for use with Renesas products.
* No other uses are authorized. This software is owned by Renesas Electronics Corporation and is protected under all
* applicable laws, including copyright laws.
* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING THIS SOFTWARE, WHETHER EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS ELECTRONICS CORPORATION NOR ANY OF ITS
* AFFILIATED COMPANIES SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY
* REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGES.
* Renesas reserves the right, without notice, to make changes to this software and to discontinue the availability of
* this software. By using this software, you agree to the additional terms and conditions found by accessing the
* following link:
* http://www.renesas.com/disclaimer
*
* Copyright (C) 2015-2016 Renesas Electronics Corporation. All rights reserved.
*********************************************************************************************************************/
/*********************************************************************************************************************
* FDL header files include
*********************************************************************************************************************/
#include "r_typedefs.h"
#include "app.h"
#include "target.h"
/*********************************************************************************************************************
* Compiler specific defines
*********************************************************************************************************************/
#if APP_COMPILER == APP_COMP_GHS
#elif APP_COMPILER == APP_COMP_IAR
#define asm __asm
#elif APP_COMPILER == APP_COMP_REC
#endif
/*********************************************************************************************************************
* module global variable
*********************************************************************************************************************/
uint32_t PSWSafe; /* Variable to backup the PSW value before disabling ID/NP */
/*********************************************************************************************************************
* Function name: FDL_User_CriticalSetionBegin
*********************************************************************************************************************/
/**
* Function to disable Maskable / non maskable exceptions and NMI when critical code shall be
* executed that allows no access to the code Flash or might have problems with synchronization
*
* @param ---
* @return ---
*/
/*********************************************************************************************************************/
#if APP_COMPILER == APP_COMP_GHS
void FDL_User_CriticalSetionBegin (void)
{
asm( "ldsr r0, 31" ); /* select system register bank 0
(contains PSW)*/
asm( "stsr 0x05, r7" ); /* load PSW (register 5) */
asm( "mov _PSWSafe, r6" ); /* backup PSW */
asm( "st.w r7, 0[r6]" ); /* " */
asm( "movea 0x00A0, r0, r6" ); /* NMI Flag=1, ID=1 */
asm( "or r7, r6 "); /* " */
asm( "ldsr r6, 5" ); /* write PSW */
}
#elif APP_COMPILER == APP_COMP_REC
#pragma inline_asm FDL_User_CriticalSetionBegin
void FDL_User_CriticalSetionBegin (void)
{
ldsr r0, 31 /* select system register bank 0 */
/* (contains PSW) */
stsr 0x05, r7 /* load PSW (register 5) */
mov #_PSWSafe, r6 /* backup PSW */
st.w r7, 0[r6] /* " */
movea 0x00A0, r0, r6 /* NMI Flag=1, ID=1 */
or r7, r6 /* " */
ldsr r6, 5 /* write PSW */
}
#else
/* IAR */
void FDL_User_CriticalSetionBegin (void)
{
__asm(" ldsr r0, 31 \n"
" stsr 0x05, r7 \n"
" mov _PSWSafe, r6 \n"
" st.w r7, 0[r6] \n"
" movea 0x00A0, r0, r6 \n"
" or r7, r6 \n"
" ldsr r6, 5 \n"
);
}
#endif
/*********************************************************************************************************************
* Function name: FDL_User_CriticalSetionEnd
*********************************************************************************************************************/
/**
* Function to enable Maskable / non maskable exceptions and NMI after critical code has been
* executed
*
* @param ---
* @return ---
*/
/*********************************************************************************************************************/
#if APP_COMPILER == APP_COMP_GHS
void FDL_User_CriticalSetionEnd (void)
{
asm( "ldsr r0, 31" ); /* select system register bank 0
(contains PSW)*/
asm( "mov _PSWSafe, r6" ); /* Restore PSW value */
asm( "ld.w 0[r6], r7" ); /* " */
asm( "ldsr r7, 5" ); /* write PSW */
}
#elif APP_COMPILER == APP_COMP_REC
#pragma inline_asm FDL_User_CriticalSetionEnd
void FDL_User_CriticalSetionEnd (void)
{
ldsr r0, 31 /* select system register bank 0
(contains PSW) */
mov #_PSWSafe, r6 /* Restore PSW value */
ld.w 0[r6], r7 /* " */
ldsr r7, 5 /* write PSW */
}
#else
/* IAR */
void FDL_User_CriticalSetionEnd (void)
{
__asm(" ldsr r0, 31 \n"
" mov _PSWSafe, r6 \n"
" ld.w 0[r6], r7 \n"
" ldsr r7, 5 \n"
);
}
#endif
/*********************************************************************************************************************
* Function name: FDL_Open
*********************************************************************************************************************/
/**
* Function to open the FDL operation.
* The user modifiable function e.g. Initializes/Configures the Data Flash access
*
* @param ---
* @return ---
*/
/*********************************************************************************************************************/
void FDL_Open (void)
{
//INIT_FLASHACCESS //keith
}
/*********************************************************************************************************************
* Function name: FDL_Close
*********************************************************************************************************************/
/**
* Function to close the FDL operation.
* The user modifyable function might disable Flash access, ... currently, it is empty
*
* @param ---
* @return ---
*/
/*********************************************************************************************************************/
void FDL_Close (void)
{
// DISABLE_FLASHACCESS //keith
}