In most of the standalone projects the generic project creation flow is not followed. The project's device
is defined manualy. This fix makes sure that those projects still builds without an issue.
NOTE: In these case we should use adi_project_create directly in system_project.tcl.
Without defining this signal, the UART lines receive garbage data
when no cable is connected to the J4 USB UART port.
The GPIO9 is enabled in the reference base design along with the
4MA CURRENT_STRENGTH constraint on the UART pins
When phase alignment is active, the PFD frequency value should be used
as outclk1 actual frequency.
The configuration interface of the fPLL does not support fractional values.
If the reference clock is fractional, the tool will throw an error that requirement
above is not respected.
Round up the reference clock for the SERDES and the lane rate in order to
overcome this issue, until it's not fixed by Intel.
When phase alignment is active, the PFD frequency value should be used
as outclk1 actual frequency.
The configuration interface of the fPLL does not support fractional values.
If the reference clock is fractional, the tool will throw an error that requirement
above is not respected.
Round up the reference clock for the SERDES and the lane rate in order to
overcome this issue, until it's not fixed by Intel.
When phase alignment is active, the PFD frequency value should be used
as outclk1 actual frequency.
The configuration interface of the fPLL does not support fractional values.
If the reference clock is fractional, the tool will throw an error that requirement
above is not respected.
Round up the reference clock for the SERDES and the lane rate in order to
overcome this issue, until it's not fixed by Intel.
The new REG_PRBS_CNTRL and REG_PRBS_STATUS registers expose controls of internal
PRBS generators and checkers allowing the testing the multi-gigabit serial link
at the physical layer without the need of the link layer bringup.
In phase aligned mode the fPLL uses an external feedback path to better
align the phase of the PLL output to the phase of the external reference
clock.
This mode is required for deterministic latency to be able to sample SYSREF
which is source synchronous to the external reference clock signal.
So far phase aligned mode had been disabled since manual PLL calibration
would fail in this mode under certain (unknown) circumstances and dynamic
reconfiguration of the PLL would not work.
The latest Intel Arria 10 transceiver datasheet contains instructions for
the proper calibration sequence to make it work when the PLL is configured
for phase aligned mode. Software has been updated accordingly, so enable
phase aligned mode.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Laszlo Nagy
Sergiu Arpadi
Istvan Csomortani
Adrian Costina
aholtzma
Lars-Peter Clausen
AndreiGrozav