Difference between revisions of "Ethernet Module"

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{|border="1" cellspacing="0" cellpadding="5"
 
{|border="1" cellspacing="0" cellpadding="5"
 
|+ Table 2.1 Component List
 
|+ Table 2.1 Component List
! Item !! Description !! Quantity
+
! Special Item !! Description !! Quantity
 
|-valign="top"
 
|-valign="top"
 
| [http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9000A-DS-F01-101906.pdf DM9000AEP] || Ethernet Controller || 1
 
| [http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9000A-DS-F01-101906.pdf DM9000AEP] || Ethernet Controller || 1
 
|-
 
|-
 
| [http://www.hanrun.com/hr/upfile/2_1_113.pdf HR911102A] || RJ45 Connector with Integrated Magnetics for 10/100 Base-TX  || 1
 
| [http://www.hanrun.com/hr/upfile/2_1_113.pdf HR911102A] || RJ45 Connector with Integrated Magnetics for 10/100 Base-TX  || 1
 +
|-
 +
| [http://ww1.microchip.com/downloads/en/DeviceDoc/21749F.pdf 93LC46B] || http://ww1.microchip.com/downloads/en/DeviceDoc/21749F.pdf  || 1 (Optional)
 +
|-
 +
| 25MHz Crystal || Crystal || 1
 +
|-
 +
| 22pF || For Crystal Use || 2
 +
|-
 +
| 220uF || For RXVDD25/TXVDD25  || 1
 +
|-
 +
| 49.9ohm || For RX+/RX-/TX+/TX- || 4
 +
|-
 +
| 6.8kohm || For BGRES/BGGND || 1
 +
|-
 +
| 510ohm || For LEDs|| 2
 
|-
 
|-
 
|}
 
|}

Revision as of 20:29, 8 August 2007

Introduction

  • This project aims to develop an Ethernet Module, to be used in conjunction with a 8/16 bits embedded system such as the dsPic33F development board.
  • The entire Ethernet Module consists of:
  1. Hardware: a LAN card based on Davicom DM9000A chip
  2. Software: a TCP/IP stack based on uIP 1.0

References

DM9000A

DM9000A Datasheet

uIP

lwIP

HTML

  • W3 Schools: Learning how to write HTML and JavaScript
  • Nvu: Open source HTML Editor

SNMP

  • SNMP Link: Information on SNMP Agents
  • IANA: Applying a Private Enterprise Number


Hardware

Component List

Table 2.1 Component List
Special Item Description Quantity
DM9000AEP Ethernet Controller 1
HR911102A RJ45 Connector with Integrated Magnetics for 10/100 Base-TX 1
93LC46B http://ww1.microchip.com/downloads/en/DeviceDoc/21749F.pdf 1 (Optional)
25MHz Crystal Crystal 1
22pF For Crystal Use 2
220uF For RXVDD25/TXVDD25 1
49.9ohm For RX+/RX-/TX+/TX- 4
6.8kohm For BGRES/BGGND 1
510ohm For LEDs 2

Circuit and PCB

in gEDA format and its gEDA sym and footprints


Software

Driver

Base in Freertos and dspic platform, see http://chungyan5.no-ip.org/vc/tags/1.07.08/demo_posix/dspic/drivers/dm9000a.c?root=freertos_posix&view=markup