[hpsdr] Orion_v4.5 firmware download package (Orion MkI boards)

[Joe Martin]

All, 

An Orion_v4.5 download package is available for download at: 

http://k5so.com/HPSDR_downloads.html

This version of firmware for Orion-based radios (Orion MkI boards) upgrades the firmware design from Quartus II v13.1 to Quartus Prime Lite v16.0, including upgrades of all megafunctions in the design. The 122.88MHz VCXO lock feature is reworked to operate at 10MHz vs the previous 80KHz which in turn allows removal of one of the previous PLLs, the new PLLs are improved megafunction versions that exhibit lower output noise.  This firmware also removes an unnecessary PTT input in the firmware that had potential for creating audio pops/clicks on Rx-to-Tx transitions.  Details of the changes are listed in the Orion release notes included in the download package, as is the Quartus source code archive file for the firmware. 

A similar package for the Orion MkII boards will be coming soon.  

73, Joe K5SO