How to use the CF in EP2C35(DEV kit)

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

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>

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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>

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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>

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# 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]

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but i find i got the next error

<div class='quotetop'>QUOTE </div>

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# mount -t vfat /dev/hda /mnt

mount: Mounting /dev/hda on /mnt failed: No such device or address# [/b]

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pls help me ! thanks!

Did you format the CF card on XP?

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

Do you have this in kernel config?

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

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

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???

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.

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 .