This adds a Readme.md to each project directory with pointers to project
documentation in the wiki, and the drivers (if they exist). This will
help with some autogenerated doc in the wiki, that is generated with the
innovatily named "wiki_summary.sh" shell script that parses through
these Readme.md files, and generates a summary table.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Iacob Liviu Mihai <liviu.iacob@analog.com>
Occasionally with zed, the implementation failed at the placement stage where
the tool could not fit the logic cells inside a single clock region,
constraint required by the usage of regional clock buffers.
This commit allows the usage of the global clock buffers which help the tool
in such cases and allow a larger application logic to be implemented in fabric.
For CMOS case, lane rates are so low that reference clock of the source
synchronous interface can be routed on non-clock routes. The delays on
the clock line are adjusted by the digital interface tuning controlled
through software.
Lock down clock buffers on Rx and Tx interfaces, this avoids suboptimal
placement which causes large skew between clocks at the serdes pins.
1. Reduce max allowed skew between source synchronous clocks that can
occur due PCB differences. 250ps represents a difference more than an
inch.
2. In order to reduce skew between source synchronous clock and the
divided clock instruct the tool to use a common clock root for them.
For fixing "Failed to reset the device and set SPI Config"
error, both clockPolarity and clockPhase should be disabled
or both enabled. By default both are unset.
Signed-off-by: Stefan Raus <stefan.raus@analog.com>
The ADRV9002 uses in the digital interface 1.8V, however the Zed VADJ is
selectable by a jumper can go up to 3.3V . Voltage levels higher than 1.8V
are detected by the EVAL-ADRV9002 board, asserting the VADJ_ERR pin.
If VADJ error is set high keep all drivers in high-z state and signalize
it to the software layer through a gpio line.
sergiu arpadi
Robin Getz
Laszlo Nagy
Adrian Costina
LIacob106
stefan.raus
Istvan Csomortani