/******************************************************************************
FILE : datapage.c
PURPOSE : paged data access runtime routines
MACHINE : Freescale 68HC12 (Target)
LANGUAGE : ANSI-C
HISTORY : 21.7.96 first version created
******************************************************************************/
#include "hidef.h"
#include "non_bank.sgm"
#include "runtime.sgm"
/*lint --e{957} , MISRA 8.1 REQ, these are runtime support functions and, as such, are not meant to be called in user code; they are only invoked via jumps, in compiler-generated code */
/*lint -estring(553, __OPTION_ACTIVE__) , MISRA 19.11 REQ , __OPTION_ACTIVE__ is a built-in compiler construct to check for active compiler options */
#ifndef __HCS12X__ /* it's different for the HCS12X. See the text below at the #else // __HCS12X__ */
/*
According to the -Cp option of the compiler the
__DPAGE__, __PPAGE__ and __EPAGE__ macros are defined.
If none of them is given as argument, then no page accesses should occur and
this runtime routine should not be used !
To be on the save side, the runtime routines are created anyway.
*/
/* Compile with option -DHCS12 to activate this code */
#if defined(HCS12) || defined(_HCS12) || defined(__HCS12__)
#ifndef PPAGE_ADDR
#ifdef __PPAGE_ADR__
#define PPAGE_ADDR __PPAGE_ADR__
#else
#define PPAGE_ADDR (0x30 + REGISTER_BASE)
#endif
#endif
#ifndef __PPAGE__ /* may be set already by option -CPPPAGE */
#define __PPAGE__
#endif
/* Compile with option -DDG128 to activate this code */
#elif defined DG128 /* HC912DG128 derivative has PPAGE register only at 0xFF */
#ifndef PPAGE_ADDR
#define PPAGE_ADDR (0xFF+REGISTER_BASE)
#endif
#ifndef __PPAGE__ /* may be set already by option -CPPPAGE */
#define __PPAGE__
#endif
#elif defined(HC812A4)
/* all setting default to A4 already */
#endif
#if !defined(__EPAGE__) && !defined(__PPAGE__) && !defined(__DPAGE__)
/* as default use all page registers */
#define __DPAGE__
#define __EPAGE__
#define __PPAGE__
#endif
/* modify the following defines to your memory configuration */
#define EPAGE_LOW_BOUND 0x400u
#define EPAGE_HIGH_BOUND 0x7ffu
#define DPAGE_LOW_BOUND 0x7000u
#define DPAGE_HIGH_BOUND 0x7fffu
#define PPAGE_LOW_BOUND (DPAGE_HIGH_BOUND+1u)
#define PPAGE_HIGH_BOUND 0xBFFFu
#ifndef REGISTER_BASE
#define REGISTER_BASE 0x0u
#endif
#ifndef DPAGE_ADDR
#define DPAGE_ADDR (0x34u+REGISTER_BASE)
#endif
#ifndef EPAGE_ADDR
#define EPAGE_ADDR (0x36u+REGISTER_BASE)
#endif
#ifndef PPAGE_ADDR
#define PPAGE_ADDR (0x35u+REGISTER_BASE)
#endif
/*
The following parts about the defines are assumed in the code of _GET_PAGE_REG :
- the memory region controlled by DPAGE is above the area controlled by the EPAGE and
below the area controlled by the PPAGE.
- the lower bound of the PPAGE area is equal to be the higher bound of the DPAGE area + 1
*/
#if (EPAGE_LOW_BOUND >= EPAGE_HIGH_BOUND) || (EPAGE_HIGH_BOUND >= DPAGE_LOW_BOUND) || (DPAGE_LOW_BOUND >= DPAGE_HIGH_BOUND) || (DPAGE_HIGH_BOUND >= PPAGE_LOW_BOUND) || (PPAGE_LOW_BOUND >= PPAGE_HIGH_BOUND)
#error /* please adapt _GET_PAGE_REG for this non default page configuration */
#endif
#if (DPAGE_HIGH_BOUND+1u) != PPAGE_LOW_BOUND
#error /* please adapt _GET_PAGE_REG for this non default page configuration */
#endif
/* this module does either control if any access is in the bounds of the specified page or */
/* ,if only one page is specified, just use this page. */
/* This behavior is controlled by the define USE_SEVERAL_PAGES. */
/* If !USE_SEVERAL_PAGES does increase the performance significantly */
/* NOTE : When !USE_SEVERAL_PAGES, the page is also set for accesses outside of the area controlled */
/* by this single page. But this is should not cause problems because the page is restored to the old value before any other access could occur */
#if !defined(__DPAGE__) && !defined(__EPAGE__) && !defined(__PPAGE__)
/* no page at all is specified */
/* only specifying the right pages will speed up these functions a lot */
#define USE_SEVERAL_PAGES 1
#elif (defined(__DPAGE__) && defined(__EPAGE__)) || (defined(__DPAGE__) && defined(__PPAGE__)) || (defined(__EPAGE__) && defined(__PPAGE__))
/* more than one page register is used */
#define USE_SEVERAL_PAGES 1
#else
#define USE_SEVERAL_PAGES 0
#if defined(__DPAGE__) /* check which pages are used */
#define PAGE_ADDR PPAGE_ADDR
#elif defined(__EPAGE__)
#define PAGE_ADDR EPAGE_ADDR
#elif defined(__PPAGE__)
#define PAGE_ADDR PPAGE_ADDR
#else /* we do not know which page, decide it at runtime */
#error /* must not happen */
#endif
#endif
#if USE_SEVERAL_PAGES /* only needed for several pages support */
/*--------------------------- _GET_PAGE_REG --------------------------------
Runtime routine to detect the right register depending on the 16 bit offset part
of an address.
This function is only used by the functions below.
Depending on the compiler options -Cp different versions of _GET_PAGE_REG are produced.
Arguments :
- Y : offset part of an address
Result :
if address Y is controlled by a page register :
- X : address of page register if Y is controlled by an page register
- Zero flag cleared
- all other registers remain unchanged
if address Y is not controlled by a page register :
- Zero flag is set
- all registers remain unchanged
--------------------------- _GET_PAGE_REG ----------------------------------*/
#if defined(__DPAGE__)
#ifdef __cplusplus
extern "C"
#endif
#pragma NO_ENTRY
#pragma NO_EXIT
#pragma NO_FRAME
static void NEAR _GET_PAGE_REG(void) { /*lint -esym(528, _GET_PAGE_REG) used in asm code */
asm {
L_DPAGE:
CPY #DPAGE_LOW_BOUND ;/* test of lower bound of DPAGE */
#if defined(__EPAGE__)
BLO L_EPAGE ;/* EPAGE accesses are possible */
#else
BLO L_NOPAGE ;/* no paged memory below accesses */
#endif
CPY #DPAGE_HIGH_BOUND ;/* test of higher bound DPAGE/lower bound PPAGE */
#if defined(__PPAGE__)
BHI L_PPAGE ;/* EPAGE accesses are possible */
#else
BHI L_NOPAGE ;/* no paged memory above accesses */
#endif
FOUND_DPAGE:
LDX #DPAGE_ADDR ;/* load page register address and clear zero flag */
RTS
#if defined(__PPAGE__)
L_PPAGE:
CPY #PPAGE_HIGH_BOUND ;/* test of higher bound of PPAGE */
BHI L_NOPAGE
FOUND_PPAGE:
LDX #PPAGE_ADDR ;/* load page register address and clear zero flag */
RTS
#endif
#if defined(__EPAGE__)
L_EPAGE:
CPY #EPAGE_LOW_BOUND ;/* test of lower bound of EPAGE */
BLO L_NOPAGE
CPY #EPAGE_HIGH_BOUND ;/* test of higher bound of EPAGE */
BHI L_NOPAGE
FOUND_EPAGE:
LDX #EPAGE_ADDR ;/* load page register address and clear zero flag */
RTS
#endif
L_NOPAGE:
ORCC #0x04 ;/* sets zero flag */
RTS
}
}
#else /* !defined(__DPAGE__) */
#if defined( __PPAGE__ )
#ifdef __cplusplus
extern "C"
#endif
#pragma NO_ENTRY
#pragma NO_EXIT
#pragma NO_FRAME
static void NEAR _GET_PAGE_REG(void) { /*lint -esym(528, _GET_PAGE_REG) used in asm code */
asm {
L_PPAGE:
CPY #PPAGE_LOW_BOUND ;/* test of lower bound of PPAGE */
#if defined( __EPAGE__ )
BLO L_EPAGE
#else
BLO L_NOPAGE ;/* no paged memory below */
#endif
CPY #PPAGE_HIGH_BOUND ;/* test of higher bound PPAGE */
BHI L_NOPAGE
FOUND_PPAGE:
LDX #PPAGE_ADDR ;/* load page register address and clear zero flag */
RTS
#if defined( __EPAGE__ )
L_EPAGE:
CPY #EPAGE_LOW_BOUND ;/* test of lower bound of EPAGE */
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飞思卡尔S12G128带freemaster can通信调试功能的工程
共65个文件
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c:15个
h:13个
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G128_freemaster - 副本.zip (65个子文件)
G128_freemaster - 副本
.gitignore 27B
TBDML.ini 1KB
bin
Project.abs 234KB
Project.abs.phy 11KB
Project.map 143KB
Project.abs.s19 11KB
Sources
main.c 660B
datapage.c 68KB
can.c 3KB
cpmu.h 115B
cpmu.c 982B
Start12.c 23KB
FreeMaster
platforms
freemaster_HC12.h 20KB
freemaster.h 11KB
freemaster_HC12.c 16KB
freemaster_cfg.h 6KB
freemaster_example.h 2KB
freemaster_example.c 23KB
common
freemaster_protocol.c 25KB
freemaster_tsa.c 14KB
freemaster_rec.c 26KB
freemaster_tsa.h 12KB
freemaster_pipes.c 49KB
freemaster_appcmd.c 14KB
freemaster_private.h 19KB
freemaster_can.c 28KB
freemaster_protocol.h 9KB
freemaster_scope.c 5KB
freemaster_defcfg.h 16KB
freemaster_sfio.c 6KB
freemaster_rec.h 3KB
derivative.h 260B
types.h 381B
can.h 479B
G128_freemaster_Data
Standard
ObjectCode
freemaster_HC12.c.o 8KB
mc9s12g128.c.o 156KB
freemaster_appcmd.c.o 6KB
main.c.o 5KB
freemaster_example.c.o 36KB
cpmu.c.o 6KB
can.c.o 16KB
freemaster_rec.c.o 5KB
freemaster_pipes.c.o 46KB
freemaster_can.c.o 15KB
freemaster_tsa.c.o 11KB
Start12.c.o 5KB
freemaster_protocol.c.o 14KB
freemaster_scope.c.o 4KB
datapage.c.o 9KB
freemaster_sfio.c.o 4KB
TargetDataWindows.tdt 643KB
CWSettingsWindows.stg 4KB
C_Layout.hwl 855B
Default.mem 161B
prm
Project.prm 4KB
burner.bbl 1KB
pmp
demo.pmp 67KB
G128_freemaster.mcp 61KB
cmd
TBDML_Vppon.cmd 78B
TBDML_Postload.cmd 59B
TBDML_Vppoff.cmd 77B
TBDML_Startup.cmd 59B
TBDML_Reset.cmd 60B
TBDML_Preload.cmd 60B
TBDML_Erase_unsecure_hcs12p.cmd 1KB
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