Fujitsu MB91V360 Посібник користувача - Сторінка 16
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3.3 Simple test routine for SRAM of Level-Shifter board
/********************************************************************************************/
/* Levelshifter – Simple Test Routine for SRAM-Access with CS6
/* Usage MEM window of Softune workbench for memory check at 20:00000000 */
/* Notes: before usage of the SRAM must be set jumper and pre selected CS6
/*
by software with port function register
/********************************************************************************************/
#include "MB91360.H"
#include "global.h"
/* declarations */
/* prototypes */
/*****************************************************************************/
/* Main Routine */
/*****************************************************************************/
void main(void)
{
#define DATATYPE long
volatile DATATYPE Data;
volatile DATATYPE *pData;
unsigned long i;
/* set size of SRAM-Memory
#define RAM_SIZE 0x40000
/* set chip select for test
#define CS6_Adr 0x20000000
pData = (DATATYPE *)CS6_Adr;
PFR7_PF76
= 1;
PFR27
= 0x40;
ASR6 = CS6_Adr>>16;
AMR6 = 0x000F;
AMD6 = 0x17;
CSE = 0x42;
/*****************************************************************************/
/* RAM check 0x12345678 */
/*****************************************************************************/
pData = (DATATYPE*)CS6_Adr;
for ( i=0;i<RAM_SIZE;i++ )
*pData++ = 0x12345678;
*/
pData = (DATATYPE*)CS6_Adr;
for ( i=0;i<RAM_SIZE;i++ )
if ( *pData++ != 0x12345678 )
__asm(" INTE ");
at this Adress-4 */
/*****************************************************************************/
/* RAM check 0x55555555 */
/*****************************************************************************/
pData = (DATATYPE*)CS6_Adr;
for ( i=0;i<RAM_SIZE;i++ )
*pData++ = 0x55555555;
*/
pData = (DATATYPE*)CS6_Adr;
UG-910005-24
LEVELSHIFTER BOARD
Chapter 3 Appendix
/* include all IO-Register definitions */
/* some useful definitions */
0:0000-F:FFFF */
*/
/* Chip-select area 2 */
/* Pointer at ext. SRAM */
/* PFR select CS6 */
/* ... */
/* 1Mbyte address range 2000:0000-200F:FFFF */
/* 32 bits bus width, 7 wait cycles,
RDY disable, SRAM 150ns cycle time */
/* CS1 + CS6 enable */
/* set Pointer at start-ADR of ext. SRAM */
/* (2 x 512kbyts) */
/* write Testpattern into ext.SRAM of LevelShifter-Board
/* set Pointer at start-ADR of ext. SRAM */
/* (2 x 512kbyts) */
/* check memory - SRAM of LevelShifter-Board */
/* --> Emulator stop by memory error
/* set Pointer at start-ADR of ext. SRAM */
/* (2 x 512kbyts) */
/* write Testpattern into ext.SRAM of LevelShifter-Board
/* set Pointer at start-ADR of ext. SRAM */
- 16 -
*/
*/
*/
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