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11. (timesys linux q )

FPGA

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Timesys linux overview

Fully preemptible kernel Constant-time scheduler

Fully schedulable interrupt handlers

Fully schedulable soft-IRQs

Reduced interrupt disable timers

2

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Timesys linux 4

TimeSys Linux/GPL The basic TimeSys Linux kernel

offers full preemption at the kernel level

prioritized interrupt handlers

TimeSys Linux/Real-time

Makes Linux a true RTOS by adding priority inheritance

POSIX-based high-resolution timer API

TimeSys Linux/CPU

Adds support for CPU reservation

TimeSys Linux/Net Adds support for network bandwidth reservation

3

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Install SDK

Tslinux-amxap100 install script ./install

4

Found Red Hat LinuxVersion 7.3TimeSys Linux 4.0 for Amirix AP100This CD contains several separate and independent software programs.

TimeSys Linux/Real-Time, TimeSys Linux/CPU and TimeSys Linux/NET areowned and licensed by TimeSys Corporation under the terms of the TimeSysCorporation End User License Agreement contained in the file LICENSE onthis CD. TimeSys Linux is owned and licensed by TimeSys Corporation underthe terms of the Free Software Foundation, Inc. GNU General PublicLicense contained in the file GPL on this CD. Other software programs arelicensed under the terms of their respective owners license agreementsas contained on this CD. All rights not expressly granted are reserved by

the respective Licensors.Press to continue:

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Install SDK

5

The install script displays the following summary of the installableproducts. Enter the number correspondingto the TimeSys Linux product that you want to install and press Enter tocontinue. Selecting number 5 displaysan additional menu that enables you to select specific subsets of TimeSysLinux for installation. You should onlyselect this option if you are extremely familiar with TimeSys Linux or ifyou have discussed the ramifications of

installing a subset of TimeSys Linux with TimeSys Customer Support personnel.1. TimeSys Linux/GPL..............................................711525Kb2. TimeSys Linux/Real-Time........................................711865Kb3. TimeSys Linux/CPU..............................................711975Kb4. TimeSys Linux/NET..............................................712100Kb5. Custom Installation.................................................0Kb6. ExitSelect the TimeSys distribution you wish to install or update:1

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Install SDK

6

Type YES or yes if you agree to the terms of this license.Type NO or no to abort the installation.Press key to see the License again. yes

Creating: /opt/timesys/linux/4.0/amxap100/rfs/usr/share/man

Creating: /opt/timesys/linux/4.0/amxap100/toolsCreating: /opt/timesys/linux/4.0/amxap100/etcCreating: /opt/timesys/linux/4.0/amxap100/includeCreating: /opt/timesys/linux/4.0/amxap100/rfs/etcCreating: /opt/timesys/linux/4.0/amxap100/src/2.4.18-timesys-4.0Creating: /opt/timesys/linux/4.0/amxap100/rfs/bootCreating: /opt/timesys/linux/4.0/amxap100/rfs/usr/bin--> Installing kernel--> Installing boot--> Installing rfs

--> Installing init--> Installing tools--> Installing lektools--> Installing rfstools--> Installing tsgpl--> Installing tsrt--> Installing tscpu--> Installing tsnet

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PC NFS

/etc/exports

Restart NFS

7

/opt/timesys/linux/4.0/amxap100/rfs 10.0.0.10(rw,sync,no_root_squash)

# /etc/rc.d/init.d/nfslock restart

# /etc/rc.d/init.d/nfs stop# /etc/rc.d/init.d/nfs start

Target IP

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PC DHCP

/etc/dhcpd.conf

DHCP

8

subnet 10.0.0.0 netmask 255.0.0.0 {host amxap100 {hardware ethernet 00:20:0c:10:75:0d;fixed-address 10.0.0.10;server-name "10.0.0.2";option root-path "/opt/timesys/linux/4.0/amxap100/rfs";

}}

# killall -v -TERM dhcpd

# dhcpd -d eth1

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PC TFTP

/etc/xinetd.d

TFTP

9

# default: off# description: The tftp server serves files using the Trivial File Transfer\# Protocol. The tftp protocol is often used to boot diskless \# workstations, download configuration files to network-aware printers, \# and to start the installation process for some operating systems.

service tftp{socket_type = dgramprotocol = udpwait = yesuser = rootserver = /usr/sbin/in.tftpdserver_args = -s /tftpboot

disable = no}

# /etc/rc.d/init.d/xinetd restart

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Serial configuration

Baud rate : 57600 8 bit communications

No parity

1 Stop bit

No software or hardware flow control

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COM1

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3 enter

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Target IP

host IP

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TFTP server

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Default directory

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18

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Ramdisk

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20

(none) login: root

Linux (none) 2.4.18-timesys-4.0.632 #1 Thu Feb 5 11:06:26 EST 2004 ppc unknown

bash-2.05#

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Ramdisk

Ramdisk (8mb ramdisk)

Loopback device ramdisk

(ext2)

( q )

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dd if=/dev/zero of=ramdisk.image bs=1024 count=8192

losetup /dev/loop0 ramdisk.image

mke2fs b 1024 /dev/loop0

mount /dev/loop0 MOUNT-POINT

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Ramdisk

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# umount MOUNT-POINT# losetup -d /dev/loop0# gzip -9 ramdisk.image

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Ramdisk

Ramdisk

Ramdisk loopback device

Ramdisk mount( )

Unmount

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#gzip -d ramdisk.gz

#losetup /dev/loop1 ramdisk

#mount /dev/loop1 mount-point

#umount mount-point#losetup -d /dev/loop1#gzip -9 ramdisk