NET OS 6.1 Training

1
NETOS 6.1 Training
2
Introduction
3
What is NetOs?
4
The Operating System - ThreadX

• ThreadX is the underlying RTOS in NETOS
• Scalable, high performance, real-time kernel
• Developed by Express Logic (www.expresslogic.com)
• Included in NETOS as a library
  /netos/lib/32b/tx.a
• Only objects used are linked to the image
• ANSI C compliant
• Source code optionally available

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The TCP/IP Stack

• Stack is based on the gtgtFusionltlt TCP/IP
  Stack(former Pacific Softworks)
• Protocols PPP, ARP/RARP, ICMP, IGMP, IP,
  UDP, TCP, DHCP
• Berkeley BSD compliant Socket Interface
• Included in NETOS as a library
  /netos/lib/32b/tcpip.a
• Only objects used are linked to the image
• ANSI C compliant

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Guide to Protocols inside NETOS
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Higher Level Networking Protocols

• Easy to use APIs for
• POP3 / SMTP
• FTP client and server
• HTTP
• Telnet
• SNMP,SNMPv2
• DNS
• NTP
• Fast IP
• Fast UDP

void applicationStart (void) unsigned long
rc unsigned long handle char to
"01739011196_at_d2-message.de" //char to
"nsso01_at_marvin.os" char from
"devboard_at_marvin.os" char subject "Hi
there" char msg "Howdy." handle
MCCreate(POP3, 110, "192.168.101.240", \
25, "192.168.101.240") rc
MCSendSimpleMail(handle, from, to, subject, msg,
strlen(msg)) printf("MCSendSimpleMail
returned d\n", rc) rc MCClose(handle)
tx_thread_suspend(tx_thread_identify())
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Low Level Code

• Board Support Package (BSP) completely available
  in source, including device drivers for
• Network Interface, Loop Back Device
• Serial UART, SPI, HDLC
• DMA
• I2C, LCD
• USB Host, Device
• Power Save

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GHS - Multi 2000
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GHS Multi 2000

• Green Hills Multi 2000, includes
• Project Builder
• C/C Compiler, Linker, Source Level Debugger
• Performance Profiler
• Run-time Error Checking
• Graphical Function Browser
• Version Control Systemincludes Interface to
  ClearCase as well
• Event Analyzer

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The GNU Development Tools
run in a UNIX shell emulation called Cygwin
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Covering the Tools w/ graphical FEs
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GDBTK - Insight A graphical FE for GDB
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The Boot Up Procedure

• Bootloader Image
• Application Image

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Boot loaderDoes the same BSP Initialization