HL2+ Gateware Download

New!  Here is the link to the latest Gateware for the Hermes Lite 2 Plus: HL2+ V4.x 75p0 Gateware   

The new gateware addresses the following reported issue with HL2+ ATU operation:

Corrects continued TX after ATU tune cycle.  TX now discontinues at the conclusion of ATU tune cycle.  The continued TX at the end of ATU cycle was intended, for ATU's like the Icom AH4 which has no display and no post-tune VSWR indication.  Most if not all current ATU's do show post-tune VSWR and so this behavior has been removed/corrected.

Archive info on previous gateware(s):

There are separate  gateware files for V3.3 and V4.x versions of the AK4951 Companion Board due to the ATU support hardware which was added to V4.x Companion Boards.    

___________________________________________________

Gateware for V4.x AK4951 Companion Board:
hl2b5up_ak4951v4.rbf (ID's as 74p2, which will show as 74,2,5,4 in SparkSDR)

Gateware for V3.3 and earlier AK4951 Companion Boards: 
hl2b5up_ak4951v3.rbf (ID's as 74p2, which will show as 74,2,5,4 in SparkSDR)

___________________________________________________

    Changes made in 74p2 from the previous 74p0 version (with incorrect file name of 73p3):
    1.  HL2/HL2+ Common Update
       - Tx Inhibit (from CN8) in the C&C packet bits is now active low
       - Fix for CW bug as described in this thread: CW Bug
    2. HL2+ Only Update
       - ATU support function changed to match HL2.  ATU enabled/disabled by "Mic/Line-in" select:  HL2 AH4 ATU Support

___________________________________________________

    Icom AH4 ATU Operation using the HL2/HL2+:  V4 gateware supports Icom AH4 protocol (and compatible, there are many).  Pressing the TUN button in Thetis initiates an ATU tune cycle.
___________________________________________________
 
Previous HL2+ 73p3 GW's.  Use with both V4.x and V3.x AK4951 Companion Boards
 
73p3_testing_release_ak4951v3_variant_hl2b5up.rbf (ID's as 74p0, which will show as 74,0,5,4 in SparkSDR)
 
For use with Icom AH4 ATU only: 
73p3_testing_release_ak4951v3_variant_hl2b5up_ATU.rbf (ID's as 74p1, which will show as 74,1,5,4 in SparkSDR))
 
    Usage of AK4951 Companion Board for Icom AH4 ATU Control with 74p1: