EzUHF
Firmware Upgrades
Version 1.25b*
<- This is a
highly-recommended update for all EzUHF systems
Version 1.25b UK
Version* <-
UK-legal version of the above, using 459MHz band, and 100mW max.
power.
Version 1.18 Manual
ImmersionRC Tools
Firmware Updater v1.21 (IMPORTANT: use this to upgrade the
firmware. Uninstall previous version of ImmersionRC Tools before
installing)
EzUHF
firmware update and driver install procedure<- details
the firmware upgrade and driver install procedure
EzOSD v1.14*
<- Latest EzOSD update compatible with v1.25b of the EzUHF
Revision History
V1.25b
- Fix an issue with the timing of the PWM output for channel 8
V1.25a
- Fix an issue with the timing of the PPM output for channel 8 (MikroKopter mode)
V1.24 - NOTE: All Tx/Rx need updating to v1.24, no
compatibility between v1.24 and previous
- Greatly improves link quality when multiple EzUHF systems share the
same band
- Greatly improves the noise immunity of EzUHF Rx's
- Fix issues with USB dropouts when testing at the limits of
sensitivity
- Add option to emit the PWM representation of Link Quality to an
unused servo port
Important Note: The EzUHF systems which started shipping to
retailers in Nov 2011 are all equipped with firmware version v1.24.
To retain compatibility with older systems, ensure that the older
systems are upgraded to v1.24 also.
V1.20 - NOTE: All Tx/Rx need updating to v1.20, no
compatibility between v1.20 and previous
- Increase frequency deviation, which results in a more robust link,
with slight increase in sensitivity
- reduced bind freq. resolution (again...)
- Improve binding robustness, new LED flash codes for the Rx side:
.....6 short = binding failed due to calibration error
.....10 fast = binding failure (calibration worked, binding failed)
- Switch to 1/2 the number of hops, over the same frequency span. Bins
are randomly chosen. Advantages: faster recovery from failsafe (500ms
vs. 1 sec.), and the same immunity from interference.
- Update IRC Tools to support choosing the frequency band. Useful when
formation flying at long range to move co-located transmitters onto a
clear band. Also useful to avoid particularly 'noisy' parts of the UHF
band (use the IRC Tools spectrum analyzer to analyze band usage in
your area)
V1.19
- Added code to kick-start the Xtal oscillator at extremes of
temperature
- Increase bind frequency calibration resolution
V1.18
- Add the possibility to control UHF output power level from the R/C
Tx (for Jeff, Workshop)
- Increase Rx bind timeout to 60 seconds after boot (was 10 seconds)
- Restore normal Rx operation after plotting a spectrum in the
ImmersionRC Tools
- Fix Xtal load capacitance, reduce (dramatically) the frequency drift
at extremes of temperature dependency (NOTE: This change requires a
rebind of all receivers)
V1.17
- Fix minor servo jitter issue when the EzUHF is hooked to an EzOSD
(~10us of jitter, noticable on fast digital servos)
- Add headtracker control to the EzUHF Tx, using either the
pushbutton, or a R/C channel
V1.16
- switched to interruptable interrupts to fix servo jitter issue
- removed servo 'walking' on the Tx side when no PPM input detected
V1.15
- remove the logging of frequency errors, no longer required, and
possibly causing corrupted eeprom
V1.14
- fixed doubly counting bad packets, fixes link quality indicator once
and for all (0% is now really 0%!)
- improve spectrum analyzer performance, much faster when using the
IRC tools
- add support for blanking and menu button pressing from the EzUHF Tx
v1.10
- Link Quality indicator rescaled, 0% = no reception, 100% = all is
well
- Changed FHSS diagnostics to index by freq. and not hop bin
- Add support for the ImmersionRC Tools spectrum analyzer diagnostics
- Rewrote Binding code to be more tolerant of crystal differences
- Increased tolerance to marginal preambles (slightly better
performance in marginal conditions)
- Added support for new Rx silicon revision, significantly better
performance for new receivers
- Added various 'beep codes' to indicate connectivity problems on the
Tx side
v1.03
- First Customer Release