Below are links to Gateware for the Hermes Lite 2 Plus. There are separate gateware files for V3.3 and V4.x versions of the AK4951 Companion Board.
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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)
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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
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Icom AH4 ATU Operation using the HL2/HL2+: Please stand by for updated information___________________________________________________Previous HL2+ 73p3 GW's. Use with both V4.x and V3.x AK4951 Companion Boards73p3_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: