How to use the CF in EP2C35(DEV kit)

[Altera_Forum]

Dear Hippo 

Thank you for your help ,now I have run the linux in my board . Now I want to use the CF card in my board. can you tell me how to do it .   My board is the NIOSII EP2C35( altera DEV KIT ) .

[Altera_Forum]

Hi Alex, 

 You need to download the CF examples, http://forum.niosforum.com/downloads/cflash/cf5_0.zip (http://forum.niosforum.com/downloads/cflash/cf5_0.zip)  Use the 2C35's sof and ptf in the examples design. In kernel config, select drivers->ata->altera CF

[Altera_Forum]

Dear HIppo  

Now I have select drivers->ata->altera CF in kernel config, so I get The  Next Information when the system boot.  <div class='quotetop'>QUOTE </div>  --- Quote Start ---  smc_probe: 85000 Khz Nios SMSC LAN91C111 Driver (v2.1), (Linux Kernel 2.6) eth0: SMC91C11xFD(rev:1) at 0x81000300 IRQ:6 MEMSIZE:8192b NOWAIT:0 ADDR: 00:07: ed:0f:61:8e smc_probe: 85000 Khz Nios Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx CF: ctl=1 hda: Hitachi XXM2.3.0, CFA DISK drive ide0 at 0x81011000-0x81011007,0x81011038 on irq 7 NET: Registered protocol family 2 IP: routing cache hash table of 512 buckets, 4Kbytes TCP established hash table entries: 2048 (order: 2, 16384 bytes) TCP bind hash table entries: 2048 (order: 1, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) NET: Registered protocol family 1 Freeing unused kernel memory: 2036k freed (0x4160000 - 0x435c000) init started:  BusyBox v1.1.1-pre0 (2006.03.06-16:49+0000) multi-call binary   BusyBox v1.1.1-pre0 (2006.03.06-16:49+0000) Built-in shell (msh) Enter &#39;help&#39; for a list of built-in commands. # [/b]  --- Quote End ---   the kerner have check the CF card .  <div class='quotetop'>QUOTE </div>  --- Quote Start ---  ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx CF: ctl=1 hda: Hitachi XXM2.3.0, CFA DISK drive ide0 at 0x81011000-0x81011007,0x81011038 on irq 7[/b]  --- Quote End ---   Now I shoud mount it  but i don&#39;t know which node is the CF card. first i have select the VFAT in the kernel config <div class='quotetop'>QUOTE </div>  --- Quote Start ---  # cat /proc/filesystems nodev sysfs nodev rootfs nodev bdev nodev proc nodev sockfs nodev pipefs nodev futexfs nodev tmpfs nodev ramfs         vfat nodev autofs[/b]  --- Quote End ---   but i find i got the next error <div class='quotetop'>QUOTE </div>  --- Quote Start ---  # mount -t vfat /dev/hda /mnt mount: Mounting /dev/hda on /mnt failed: No such device or address# [/b]  --- Quote End ---   pls help me ! thanks!

[Altera_Forum]

Did you format the CF card on XP? 

Try on nios2 linux, "fdisk /dev/hda".

[Altera_Forum]

Do you have this in kernel config? 

<*> Include IDE/ATA-2 DISK support (NEW)

[Altera_Forum]

Thanks hippo , now I have find i miss the  

<*> Include IDE/ATA-2 DISK support (NEW)  now I config it i find the next information <div class='quotetop'>QUOTE </div>  --- Quote Start ---  hda: Hitachi XXM2.3.0, CFA DISK drive ide0 at 0x81011000-0x81011007,0x81011038 on irq 7 hda: max request size: 128KiB hda: 31488 sectors (16 MB) w/1KiB Cache, CHS=246/4/32  hda: hda1[/b]  --- Quote End ---   now I can find the hda1. beacuse the size of my CF card is small ,16M byte, I have format it in my pc . the fs format is FAT12 .   when i mount the disk , i got the next inforamtion <div class='quotetop'>QUOTE </div>  --- Quote Start ---  mount -t vfat  /dev/hda1 /mnt  hda: hda1 FAT: codepage cp437 not found mount: Mounting /dev/hda1 on /mnt failed: Invalid argument[/b]  --- Quote End ---     now i have resolve the problem  beacuse I have select the language support  I select the native language support in menuconfig

[Altera_Forum]

Hi ALL 

  Now , I have mount the CF card into the linux . but i find when i create a file in the CF card , when i power off ,and then reboot the system and mount the CF card .but i can&#39;t the file . i want to know , does the fat system of linux have some problem???

[Altera_Forum]

Check your mounts with "cat /etc/mtab", or "df" . 

 You have to do "umount /mnt" or "shutdown" before power off. You can also use "sync" to flush disk cache after write files.

[Altera_Forum]

Hippo thank you very much . i have write and read a file in CF card. 

the case is over?? http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif  I summary it  if you want to use the CF card in nios2.   1. You need to download the CF examples, http://forum.niosforum.com/downloads/cflash/cf5_0.zip (http://forum.niosforum.com/downloads/cflash/cf5_0.zip)  Use the 2C35&#39;s sof and ptf in the examples design. In kernel config, select drivers->ata->altera CF <*> Include IDE/ATA-2 DISK support (NEW)   select the native language support in menuconfig   2. Mount it  mount -t vfat /dev/hda1 /mnt 3. when you write a file in card of cf ,you should make sure to be saved. so you to do "umount /mnt  Beacuse I have only 2 month to learn the linux . hippo give me more help . thank you very much .