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Valued Contributor III
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the problem of compactflash test

yesterday£¬my group produced the slot between compactflash card and up3 board 

I first write a test code# include <stdio.h># include <stdlib.h># include <unistd.h> 

# include "system.h"# include "sys/alt_alarm.h"# include "sys/alt_irq.h"# include "altera_avalon_cf_regs.h"# include "altera_avalon_cf.h"# include "ide.h"# define ctl_base (int*)CF_CTL_BASE# define ctl_irq (int)CF_CTL_IRQ# define ide_base (int*)CF_IDE_BASE# define ide_irq (int)CF_IDE_IRQ 

 

 

 

int cardPresent(void); 

 

int main() 

unsigned short usStatus, usBuffer[256]; 

unsigned int i; 

 

printf("cf card inert or not"); 

if( !cardPresent() ) 

printf("error: Compact Flash card not detected.\n"); 

return -1; 

 

IOWR_ALTERA_AVALON_CF_IDE_COMMAND(ide_base, IdentifyDeviceCmd); 

usleep(1); 

usStatus = IORD_ALTERA_AVALON_CF_IDE_STATUS(ide_base); 

usStatus = IORD_ALTERA_AVALON_CF_IDE_ALTERNATE_STATUS(ide_base); 

if(usStatus & StatusRegBitDRQ) 

for(i = 0; i < 256; ++i) 

usBuffer = iord_altera_avalon_cf_ide_data(ide_base); 

else 

printf("error: drq not set in status reg\n"); 

return -1; 

 

for(i=0;i<256;i++) 

printf(¡°%04x\n",usbuffer); 

 

 

int cardPresent(void) 

if( (IORD_ALTERA_AVALON_CF_CTL_STATUS(ctl_base) &  

ALTERA_AVALON_CF_CTL_STATUS_PRESENT_MSK) ) 

printf("you have insert the cf card"); 

return 1; 

else 

return 0; 

 

 

the result is ¡±you have insert the cf card¡° 

ffffffff 

fffffff 

¡£¡£¡£ 

ffffff 

why£¿ 

 

 

 

 

then i use the test code on our forum  

it only show 

nios2-terminal: Warning: Unable to verify whether your download cable is 

nios2-terminal: supported for Nios II systems. If you use an unsupported cable 

nios2-terminal: you may experience intermittent JTAG communication failures. 

nios2-terminal: Please refer to the file errata.txt included in the Nios II 

nios2-terminal: development kit documents directory for information on how to 

nios2-terminal: update your system. 

 

nios2-terminal: connected to hardware target using JTAG UART on cable 

nios2-terminal: "ByteBlasterII [LPT1]", device 1, instance 0 

nios2-terminal: starting in terminal mode (Control-C exits) 

 

 

the design of slot error£¿£¿£¿£¿£¿
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