Ensilica FPGA FW Releases

Owned by Jon Layton (Unlicensed)
Last updated: Oct 27, 2022
2 min read

  • Current release is version: 13

Release Date

Version 

Description

Aug. 2016

1

Design with 32K FFT.
FFT Output bit-width increased to 24 from 22 bits.
Added control logic for programming the external ADF PLL.
Added logic for sweep and sector blanking.

Sept. 2016

2

Bug fixes on Version 1.
DMA'd ABI counter modified to include bit with sector blanking fllag.
ADF write LUT controlled by a single 32-bit register.

Sept. 2016

3

Bug fixes on Version 2.

Sept. 2016

4

Made blanking output signal active low. Bug fixes in sweep blanking.

Jul. 2017

5

Debug version for issue observed in lab by Navtech. Frames appear to be offset in memory and possibly some frames are lost.

Jul. 2017

6

Debug version for issue observed in lab by Navtech. Frames appear to be offset in memory and possibly some frames are lost.

Jul. 2017

7

Latest debug version delivered to Navtech. Includes new register for alarms. Issue with address offset observed by Navtech was resolved without RTL modification (modified SW programming sequence).

Sept. 2017

8

Check-in for V0x08. Modified low precision dB data to be generated from 42 or 47 bit linear power data. Added control bits for selecting truncation mode for linear power data.

Jan. 2018

9

Amended the active_fft_bins_octates register function to create a window for DMA transfer of the FFT bits.

May-22

A = V10

Attempted bug fix for fixing radar image rotation issue due to variations in radar's angular speed.

May-22

B = V11

Attempted bug fix for fixing radar image rotation issue due to variations in radar's angular speed. Applied modifications on Version 7, since Versions 8 and 9 were not adopted by Navtech.

May-22

C = V12

Attempted bug fix for fixing radar image rotation issue due to variations in radar's angular speed.

Jun. 2022

D = V13

Attempted bug fix for fixing radar image rotation issue due to variations in radar's angular speed. Introduced register-controlled cut-off threshold for disabling sweep triggering when the radar is overspeeding.

Jun. 2022

E = V14

Final modification of solution given in Section D. This has solved the issue.