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Re: [Xylo-SDR] Lionheart Block diagram v1.4



Is there a bootPROM for either the FPGA or the FX2 or both? I note that
the Xylo has one. Otherwise, does the all the firmware have to be
downloaded through USB every time the board is turned on?

Also, since all but the power pins on the bus go only to the FPGA, the
line assignments on the left of the diagram are really "hints" as far as
the hardware is concerned; it's the firmware that really assigns the
meaning, right?


	Chris AE6VK
 

-----Original Message-----
From: Phil Harman [mailto:pvharman@arach.net.au] 
Sent: Saturday, January 28, 2006 1:13 AM
To: Xylo-SDR Discussion
Subject: [Xylo-SDR] Lionheart Block diagram v1.4

Latest Lionheart  Visio block diagram at
http://www.hamsdr.com/personaldirectory.aspx?id=123
and gif at
http://www.hamsdr.com/personaldirectory.aspx?id=124

Thanks for all the feedback.

Changes:

- Removed RS232 (will place on Janus board)
- Added  MCP120T  reset device  (Lyle  - please check it is reticulated
correctly)
- Added LDVS input socket for 200MHz DDS etc clock - What type of
connector is used with LVDS? Should this be on edge of PCB?
- Moved USB, LED's, GPS and I/O connectors to front edge of PCB
- Added 24LC64 EPROM to FX2 via I2C.
- Added 48MHz system clock to bus

Phil_C what will you need in the way of bus signals  to/from your high
speed A/D D/A board?

Feedback please!

73's  Phil....VK6APH



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