Difference between revisions of "Paraflasher"

From coreboot
Jump to: navigation, search
(The Circuit Explained)
(20 intermediate revisions by the same user not shown)
Line 1: Line 1:
The Paraflasher Project has now moved to flashrom: [http://www.flashrom.org/Paraflasher http://www.flashrom.org/Paraflasher]
Welcome to '''The LPCflasher Project'''. Open source hardware for developing open source software.
The project is maintained by [[User:linux_junkie|Joseph Smith]].
The LPCflasher is low-cost simple flash programming device. It can be used to flash a variety of LPC flash chips and firmware hubs (FWH). The hope is someday it will also be able to support SPI chips. It is also meant to be modular so you can flash a variety flash chip packages. The LPCflasher is based on an old LPC programmer built to flash LPC chips on the xbox, the [http://rex.xbox-scene.com/LPC2/LPC2.html LPC^2 (Low Parts Count LPC Programming Cable)]. The LPCflasher is not for sale, it is meant for that "do-it-yourself" kind of person. Although if the project becomes popular, bare PCB's could be produced and sold at cost. Anyone with novice to moderate soldering skills can build one.
'''Other Pictures'''
Image:LPCflasher_bottom.jpg|Ugly Bottom
{| border="0" cellpadding="2"
|- bgcolor="#6699ff"
! Component
! Recomended Specs
! Part Used
! Price Paid ($US)
|- bgcolor="#dddddd"
! DB25 Connector
*Type:D Sub
*No. of Contacts:25
*Contact Termination:Right Angle Through Hole
| [http://www.farnell.com/datasheets/78807.pdf ITW McMurdo DB25PNF]
| 3.82
|- bgcolor="#eeeeee"
! 7 Resistors
*Power Rating:250mW (1/4W)
*Material:Metal Film
| [http://www.irctt.com/pdf/CMF.pdf IRC / TT Electronics CMF1/41001FLFTR]
| 0.05 X 7
|- bgcolor="#dddddd"
! Octal Buffer
*IC Generic Number:74HC244
*Supply Voltage Max:6V
*Mounting Type:Through Hole
| [http://www.st.com/stonline/books/pdf/docs/8024.pdf STMicroelectronics M74HC244B1R]
| 0.40
|- bgcolor="#eeeeee"
! Header Connector
*No. of Contacts:16
*Pitch Spacing:2.54mm
*No. of Rows:2
| [http://www.molex.com/catalog/pdf/MX70280.pdf Molex 10897162]
| 1.19
|- bgcolor="#dddddd"
! USB B Connector
*No. of Contacts:4
*Connector Mounting:PC Board
*Contact Termination:Right Angle Through Hole
| [http://www.adam-tech.com/rick/FinalSingle/CatPg127-134.pdf Adam Technologies USB-B-S-RA]
| 0.39
|- bgcolor="#eeeeee"
! PTC Resettable Fuse
*Hold Current:0.25 Amp (250ma)
*Trip Current:0.5 Amp (500ma)
*Current Rating (Max):40 Amps
| [http://www.littelfuse.com/data/en/Data_Sheets/Littelfuse_60R.pdf Littelfuse 60R025XU]
| 0.26
|- bgcolor="#dddddd"
! Blue LED
*Bulb Size:5mm
*LED Color:Blue
*Forward Current:20mA
*Forward Voltage:3.4V
| [http://www.optekinc.com/datasheets/OVLFx3C7SERIES.PDF OPTEK Technology OVLFB3C7]
| 0.74
|- bgcolor="#eeeeee"
! LED Resistor
*Resistance:200 Ohms
*Power Rating:2 Watts
*Material:Metal Film
| [http://www.vishay.com/docs/31021/cpf.pdf Vishay/Dale CPF2200R00FKE14]
| 0.42
|- bgcolor="#dddddd"
! Linear Voltage Regulator
*Voltage Regulator Type:LDO Linear
*Output Voltage Max:3.3V
*No. of Pins:3
| [http://cache.national.com/ds/LM/LM1084.pdf National Semiconductor LM1084IT-3.3/NOPB]
| 2.83
|- bgcolor="#eeeeee"
! 2 Tantalum Capacitors
*Capacitance:10 uF
*Voltage Rating:10 Volts
*Termination Style:Axial
*Product:Tantalum Solid High Reliability
| [http://www.vishay.com/docs/40019/173d.pdf Vishay/Sprague 173D106X9010VE3]
| 0.56 X 2
|- bgcolor="#dddddd"
! Breadboard PCB
*Min External Height: 50.80mm
*Min External Width: 82.55mm
*Board Thickness:1.5mm
*Pitch Spacing:2.54mm
*Hole Diameter:1mm
| A piece of [http://www.farnell.com/datasheets/98850.pdf Roth Electronik 26M2198]
| Already had (5.93)
|- bgcolor="#eeeeee"
! Hook-Up Wire
*Conductor Size AWG:30
*Jacket Material:Polyvinylchloride (PVC)
*No. Strands x Strand Size:Solid
*Conductor Material:Copper
| About a foot of [https://edeskv2.belden.com/Products/techdata//english/swf/9978.swf Belden 9978 013100]
| Already had (Spool of 100ft 22.61)
|- bgcolor="#dddddd"
! Small Power Wires
* Red wire for 5V
* Two Orange wires for 3.3V
| Already had
==The Circuit Explained==
[[Image:LPCflashersch.jpg|LPCflasher Schematic|600px]]
If there are any inconsistencies or you would like to elaborate, please feel free.
===Data Circuit===
===Power Circuit===
==Daughter Boards==
TODO: flashrom???

Latest revision as of 15:18, 11 July 2010

The Paraflasher Project has now moved to flashrom: http://www.flashrom.org/Paraflasher