Fixed an issue on the production line

1. Measurement enhancement - Added setup/hold time: tsu@R, tsu@F, th@R, th@F
2. Optimized UI
3. Added SCPI commands for Measure Cursors and clearing measure items in Simple mode
4. Supported LXI (only with the Uboot-OS Version 5.4)
5. Supported time zone setting
6. Fixed several bugs
a) Webserver doesn’t show instrument UI if the scope reboot with a wireless mouse connected
b) Incorrect “Recall”icon in the File Manager
c) Scope freezes with AWG enabled and measure cursor on rise time
d) IP setting of AWG in Bode Plot not remembered after reboot
e) Network storage only works for SMB1.0
f) MEAS:SIMPle:ITEM\sOVSN,ON does not work as expected
g) Roll time incorrect at 1ks/div and 20kpts
h) Raw data not consistent in x and sinx/x interpolation modes
i) Math: Dx parameter of Derivation cannot be increased by universal control
j) Incorrect FFT sample rate

Compatible with new hardware (hardware version: 04-xx).
Note:
1. This is a firmware compatible with new hardware. No feature or specification difference between it and 1.3.9R6. It’s not necessary to upgrade it from 1.3.9R6 to this release.
2. This release cannot be downgraded to former releases.

1. Measurement enhancement:
a) Supported cursors for measurement
b) Supported Track plot
c) Added parameters: Positive Slope and Negative Slope
2. Display:
a) Supported to display axis label
b) Auto hide menu setting increased to 10 seconds
c) Added “Hide” button in the fast menu of channel for quickly hiding trace
3. Save/Recall:
a) Supported network storage
b) Supported to Print only grid area
c) Supported to save FFT result
d) Updated the File Manager
4. Bode Plot:
a) The maximum generator amplitude changed from 6Vp-p to 24Vp-p
b) Supported single sweep
5. Horizontal: Time Zero strategy updated – time zero changed from center display to trigger position.
6. Acquisition: Deleted some unnecessary clear operations on the history buffer
7. Updated Russian menu
8. Supported setting Cursors by virtual keypad
9. Fixed several bugs
a) Decode failure occurs on last nibble or byte
b) The “STL?” query issue in AWG function
c) If persistence is enabled, and you change the trigger setting, persistence will be switched off
d) Decode list can't go higher than item #2
e) Decode format is reset to "binary" when recalling stored settings
f) Sequence capture does not work with serial trigger from digital channel
g) ERES 0.5-bit works for ERES(C1), but not for ERES(F1)
h) The icons for rise and fall time in the Measure Select screen are reversed
i) When switching the attenuator, the message “Zone is too small” appears
j) After shutting-down the scope and rebooting not all settings are restored
k) Bode plot abnormal when Sequence is enabled
l) SENT decode: tolerance not functional
m) SENT decode: only display CRC segment but no calculation on the CRC checksum
n) SENT decode: The Short Serial data is NOT decoded if only 16 frames are sent. If a 17th frame follows, the data is decoded
o) SENT decode: Changing the horizontal time/div affects the ability to decode.
p) Save/recall: Number of digits of time stamp is not enough in the long period
q) Infinite persistence not works after switching between 8-bit and 10-bit
r) Tolerance of UART decode too strict
s) FFT max. scale is unrealistic

1. Fixed a bug that a firmware upgrade kills the scope if a previous upgrade from the WebServer was failed.

1. Supported Sign as a math function
2. Updated the Webserver. The built-in bin2csv tool supported to convert binary data of digital channels
3. Added English help information
4. Fixed several bugs