Difference between revisions of "Paraflasher"
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signals from 5V to 3.needed by the flash chip. The parallel port data lines D0, D1, and D2 are used for driving the control signals LCLK, LFRAME, and RST. The parallel port data lines D3, D4, D5, and D6 are used for bi-directional data transfers of the corresponding LAD0, LAD1, LAD2, and LAD3 lines. LAD0, LAD1, LAD2, and LAD3 lines are also buffered and feed back to the parallel port /Error, /SELIN, /PE, and /Ack signals. The 74HC244 is an advanced high-speed CMOS Octal Bus Buffer that acts as a simple signal buffer between D0, D1, /Error, /SELIN, /PE, /Ack and the LCLK, LFRAME, LAD0, LAD1, LAD2, LAD3 lines.
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Revision as of 02:58, 28 November 2008
THIS PAGE IS STILL UNDER CONSTRUCTION AND IS NOT LINKED ANYWHERE YET
Welcome to The LPCflasher Project. Open source hardware for developing open source software.
The project is maintained by 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 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.
- LPCflasher top.jpg
- LPCflasher bottom.jpg
- LPCflasher front.jpg
- LPCflasher right.jpg
- LPCflasher rear.jpg
- LPCflasher left.jpg
|Component||Recomended Specs||Part Used||Price Paid ($US)|
||ITW McMurdo DB25PNF||3.82|
|10-Bit FET Bus Switch With Level Shifting||
||Texas Instruments SN74CBTD3861DW||0.64|
|SOIC To DIP Adapter||
||MIND_TEK SOIC surface mount PCB adaptor||1.60|
|USB B Connector||
||Adam Technologies USB-B-S-RA||0.39|
|PTC Resettable Fuse||
||OPTEK Technology OVLFB3C7||0.74|
|Linear Voltage Regulator||
||National Semiconductor LM1084IT-3.3/NOPB||2.83|
|2 Tantalum Capacitors||
||Vishay/Sprague 173D106X9010VE3||0.56 X 2|
||A piece of Roth Electronik 26M2198||Already had (5.93)|
||About a foot of Belden 9978 013100||Already had (Spool of 100ft 22.61)|
|Small Power Wires||
The Circuit Explained
|Parallel Port||To LPC Signal||To FWH Signal|
If there are any inconsistencies or you would like to elaborate on anything above, please feel free.