Difference between revisions of "Light-APF27Dev"

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(New page: == Introduction == Using apf27 for a custom hobbyist project is very expensive. Because it's necessary to buy a big and expensive extension card named APF27-dev (152€ min) with the base...)
 
m (Introduction)
 
(2 intermediate revisions by one other user not shown)
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The aim of this project is to make a little PCB with minimum extension devices to have an extension card that cost 50€ max.
 
The aim of this project is to make a little PCB with minimum extension devices to have an extension card that cost 50€ max.
The apf27dev PCB design will be reused surface will be divided by 2 to speed development.
+
The apf27dev PCB design will be reused; surface will be divided by 2 to speed development.
  
 
== Caracteristics ==
 
== Caracteristics ==
  
 
Maximum of I/Os and ports must be available on light-apf27dev :
 
Maximum of I/Os and ports must be available on light-apf27dev :
* 1 USB Host
+
* 1 USB OTG (Only host ar real OTG TBD)
* 1 RS232
+
 
* 1 ethernet
 
* 1 ethernet
  
Line 17: Line 16:
 
* FPGA connector J19 and J20
 
* FPGA connector J19 and J20
 
* User extension interface J22
 
* User extension interface J22
 +
  
 
Necessary devices:
 
Necessary devices:
 
* 1 power circuit
 
* 1 power circuit
 
* 1 reset button
 
* 1 reset button
 +
* 3-pin header for debug uart
  
 
And maybe but not sure:
 
And maybe but not sure:
 
* SD connector
 
* SD connector
* usb OTG
+
* second USB host

Latest revision as of 10:15, 14 December 2009

Introduction

Using apf27 for a custom hobbyist project is very expensive. Because it's necessary to buy a big and expensive extension card named APF27-dev (152€ min) with the base module apf27 (127€ min), very few hobbyist use it.

The aim of this project is to make a little PCB with minimum extension devices to have an extension card that cost 50€ max. The apf27dev PCB design will be reused; surface will be divided by 2 to speed development.

Caracteristics

Maximum of I/Os and ports must be available on light-apf27dev :

  • 1 USB OTG (Only host ar real OTG TBD)
  • 1 ethernet

Header that correspond on apf27Dev to :

  • Wireless connector J8 and J9
  • FPGA connector J19 and J20
  • User extension interface J22


Necessary devices:

  • 1 power circuit
  • 1 reset button
  • 3-pin header for debug uart

And maybe but not sure:

  • SD connector
  • second USB host