Release (1.04-8)

The streaming application was improved. One of the main features is that users can now exactly know when and which samples are lost due to throughput problems or limitation
Watchdog was implemented for Linux and WEB applications. In case of fatal error or lost connection device will always return to its previous operation state.
Open source FPGA code can now be compiled with Vivado 2020.1
New OS available notification was implemented into WEB interface other general improvements and updates

Stable version (1.03-6)

General improvements:

Access point working with official WIFI dongle
Client WIFI mode fixed
Trigger issues fixed
Broken acquired signal issues fixed
Jupyter slow analog inputs bug fixed
Improved UI of the oscilloscope and spectrum analyzer
Shutdown button added to WEB interface
Added console server for streaming application
Multiple bug fixes in streaming applications
Added functionality limiting the number of samples in streaming application
Improved console applications. Added calibration support.
Other stability improvements & bug fixes

Beta version (0.99-43)

Improved stability

Streaming:

Added speed limit depending on the choice of data transfer mode

Stable version (0.98-5)

SCPI server:

Fixed bug with choosing the type of generated signal

Beta version (0.98-694)

Bode analyser:

The periods number was added: minimum periods number of the generated signal for each step

Spectrum analyzer:

The CSV export was fixed (min/max values).

Oscilloscope:

Some trigger bugs at the low frequency were fixed

Network manager:

The link-local IP displays when no other IP's are available

Beta version (0.98-693)

Spectrum analyzer:

Signal generator is now available also in Spectrum analyzer app

Logic analyzer, Bode analyser:

Logic analyzer & Bode analyzer data can be exported also in raw format

Oscilloscope:

Oscilloscope app settings are restored at startup

Applications:

Several bug fixes & stability improvements

Beta version (0.98-685)

VNA:

added Vector network analyser application to the ecosystem image
now it's possible to download windows tool for VNA application here:
VNA windows tool and VNA python script support bonjour rp-XXXXXX.local addresses

Bode analyser:

Improved phase and amplitude calculations

OS

Changed links to external resources

Stable version (0.98-615)

FPGA (mercury):

fixed bugs causing unreliable reads from oscilloscope, logic analyzer buffer
moved burst mode finite/infinite control into period repetitions register
restructured arbitrary signal generator, so periodic and burst mode are separate modules
added digital loopback between generator and oscilloscope (this is for test purposes)
added bit controlling if trigger will restart a running burst or not
trigger holdoff was removed from oscilloscope, instead it should be placed into a common trigger module accepting various trigger inputs and handling timing, while oscilloscope and logic analyzer triggers only handle values, at least this is the idea

OS:

updated to Ubuntu 16.04.3

Jupyter:

using ctypes array for generator/oscilloscope data buffer

Bazaar:

fixed some issues with network manager and update manager

Release 0.97-RC7

Linux kernel:

added support for BCM43143 USB Wi-Fi chipset
updated 8192cu driver to switch from 'wext' to 'cfg80211' raspberrypi/linux#1489

FPGA:

CPU and SPI clock updates
using old DNA regset in logic FPGA project to avoid Bazaar issues FPGA (mercury):
recoded burst mode for asg/generator, Python API changes were also needed

OS:

added some TFT SPI display support code
installed console-setup to fix some keyboard/console related systemd issues
removed discovery
removed wireless extensions related code
updated libiio to version 0.10

Jupyter:

updated for latest mercury FPGA code
recoded regset in ctypes
reorginized part of the code into smaller reusable blocks
updated calibration (it is not finished yet and not enabled by default)
added LG/LA driver and examples

Release 0.97-RC6

Release 0.97

U-Boot:

updated to upstream xilinx-v2016.4

Linux kernel:

added support for I2C GPIO expanders (PCA953X, MCP23S08)
added GPIO based drivers for SPI, I2C and 1-wire
enabled reset controller support
patched Cadence I2C controller driver to add proper HW reset
changed kernel patching procedure, the kernel is now forked, and patches are commited to the fork Git repo
updated to upstream xilinx-v2016.2
added TFT framebuffer and touch screen drivers
added GPIO expander and HW monitor device drivers for HAMLAB

FPGA:

updated build procedure to create bitstreams from multiple projects
moved device tree code to the FPGA directory
instead of patching just append or include *.dtsi files
adddd UIO device which covers the entire FPGA address space
added UDEV code for renaming UIO devices
added UDEV code for changing group access permissions xdevcfg,uio,led,gpio,spi,i2c,dialout,dma
added the Mercury project, will be used to implement new features, initially only supported in Jupyter
the axi4lite project is used to test AXI4 bus implementations, for now here is a basic AXI4-Lite slave (GPIO) and an integrated logic analyzer for observing bus performance and bugs

OS:

Update to Ubuntu 16.04.2
OS build script cleanup, mostly to organize the code into topics
partially removed IPv6 support, it was causing issues with zeroconf
installed more libraries (libiio v0.9, ...)

API:

changed API to map /dev/uio/
added cleaner API1 just used by Jupyter apps now, it is far from stable

Documentation:

recoded most documentation into reStructuredText, so it can be published on http://redpitaya.readthedocs.io/en/latest/

Wyliodrin:

removed

Applications:

added bode analyzer

Jupyter:

added Jupyter for interactive Python notebooks
added a few basic exampleds

Release 0.96 RC?

Application changes:

partial cleanup of copied JS/CSS code and images

Release 0.96 RC1

System Changes:

recoded Bazaar related Makefiles, instead of cross compilation, a native compiler root system is used, running inside an ARM QEMU virtualized environment, this avoids library version issues, but emulation is slow
top Makefiles are now split into a system Makefile.x86, which requires x86 to run tools like Vivado and a user space Makefile used to compile applications (Bazaar, web apps, SCPI, API, ...)
updated Nginx from version 1.5.3 to the latest 1.10.0
removed NGINX patches
updated Lua Nginx from version v0.8.7 to the latest v0.10.2
updated Websocket++ from version 0.5.0 to a slightly newer 0.7.0, and provided a patch for an issue triggered by kernel update to 4.4
removed Buildroot, lately it was only used to provide libraries at compile time, now Debian libraries are used directly
removing SDK, since it was not maintained, now it is possible to compile all user space code directly on Red Pitaya
removed some deprecated/duplicated source code
Vivado/U-Boot/Linux were updated to xilins-v2016.2
the Linaro compiler is no longer needed, ARMHF compiler is now part of Vivado SDK

OS changes:

the OS was switched from Debian Jessie to Ubintu 16.04, the main reason for the switch is access to Launchpad PPA
OS image building scripts are now a bit cleaner with separation into generic Ubuntu settings, network and Red Pitaya specific settings

Network:

the network setup was entirely recoded using systemd specific tools
zeroconf support was added
the network setup is now properly documented in NETWORK.md

FPGA2:

fpga2 project was added, which is used by api2 and the LA application
the project is rewritten in SystemVerilog mostly to make the code shorter
instead of storing samples in a short buffer, Xilinx DMA is used to copy data into the main memory
more thought is (should be) given to modules with Linux kernel drivers available

API2:

UIO is used to divide the memory space into separate segments each controlled by a separate driver
device tree overlays are used to handle loading various FPGA images, this is not yet ready for public use

Application changes:

Makefile changes so applications can be compiled directly on Red Pitaya
removing 'libjpeg' sources from spectrum analyzer applications and instead using the 'libjpeg-turbo' Debian system library

Network manager /SCPI/Wyliodrin managers

Release 0.95

New applications:

LCR meter application - accurately measures capacitors, inductors and resistors using the test frequencies of 100Hz, 1 kHz, 10kHz and 100kHz.

Application improvements: -SCPI server:

can now be started directly from WEB browser via Remote control app
Oscilloscope:
- navigation was improved (time offset can now be set by mouse dragging, t/div can be changed by scrolling)
- user is now able to retrieve signal acquired into ADC buffer even if acquisition is stopped
- stability of data transfer was improved together with network performance indication
- gain setting is now remembered when quitting app
- trigger status is now properly updated at high frequencies
- we fixed few normal trigger issues
Spectrum analyzer:
- acquire algorithm fix that fixes spectrum issues

General system improvements:

discovery service & market access problems are now solved
user is now able to upgrade Red Pitaya OS directly from the WEB browser rewriting complete SD card image is now only necesary in case of Debian/Ubuntu changes (usually systemd and network related)
Red Pitaya desktop was improved so it is more simple to use and also provides better support for tablets and smartphones
browser detection was added that suggest users to install or upgrade to recommended version
online/offline detection was added so that user knows if Red Pitaya can access the internet / if it is possible use some features that requires internet connection
switching between contributed and official applications doesn’t causes problems anymore
system crashes reports with debug information can now be sent to Red Pitaya team on user request
Feedback app - enables user to send feedback our support with attached information about Red Pitaya OS, computer OS & browser
Analytics is sent to Red Pitaya team on user request in order to track system events that can help improve user experience

Other:

access to wiki page was added, but the main news is that we also updated wiki documentation

Release 0.94 RC24

Changes:

libstdc++.so was removed from /opt/redpitaya/lib, this was made possible by fixing C++ application Makefile-s, some were using g++ while also linking stdc++, which caused conflicts, linking stdc++ was removed
small updates to free applications

Known issues (at least major ones) are same as in 0.94 RC23.

Release 0.94 RC23

Changes:

migration to Vivado 2015.4 and related U-Boot, Linux kernel and devicetree versions
changes to ARM clocking so the CPU runs at 666MHz instead of 500MHz (Ulrich Habel)
SPI userspace access seems to be fixed, /dev/spidev1.0 is present, but kernel log still does not mention SPI or QSPI drivers

Known issues

FPGA

possible timing issues
poorly written test benches
generator burst mode is buggy

U-Boot

there is no simple method to remove 3 second boot wait

Linux kernel, device tree

Warnings are reported for Lantiq Ethernet PHY devicetree

OS

wireless is broken on Buildroot, and will probably only be futher maintained on Debian/Ubuntu

Other applications

SCPI server is poorly tested and the documentation is old

Release 0.94 RC22

System changes:

fixed slow analog output API
fixed generator code in many old applications, so they can use the latest FPGA bitstream (0.94), this should reduce issues with applications, which do not load their own bitstream (Test, SCPI)

Application changes:

system monitor was added under (Settings -> SYS INFO) in order to monitor network performances, refresh rate and RP CPU, RAM status
refresh rate is auto-adjusted to network performance and user is also informed if network performance is too low and can affect user experience
transferred data is now compressed