For reliable and correct operation it is vital that the FPGA is fully
configured and up and running before the PCIe host de-asserts the reset.
Add a small logic circuit that detects de-assertion of the reset signal
that can be used to verify that the reset de-assertion was seen by the
FPGA.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The IO voltage for bank 12 and 13 is 3.3V on the PCIe carrier. Set the
IOSTANDARD of the pins on these banks accordingly.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Only the FMC carrier and the breakout board do have push buttons and LEDs.
They are not present on the PCIe carrier. So move the constraints to a
separate file that can be included by the projects that need them and
remove all LED and button related signals from the PCIe project.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
To be able to access the GPIO pins and the SPI port through the PCIe bridge
we need to use the PL SPI and GPIO controllers rather than the PS
controllers. Adjust the sytem_top.v accordingly so that the PL peripherals
are connected to the external pins.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Only enable bitstream compression only if both the
ADI_NO_BITSTREAM_COMPRESSION environment and TCL variable are not set.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Enabling bitstream compression reduces the size of the generated bitstream.
This means on one hand it will consume less storage, which is especially
useful for the BOOT partition of the ADI images where we store BOOT.BIN
files for all supported platforms.
On the other hand a smaller bitstream is faster to load from the storage
medium and it is also faster to program to the FPGA. So it reduces the
overall boot time as well.
The only downside of bitstream compression is that the bitstream size is no
longer constant, but depends on the actual design and resource utilization.
This will not work with bootloaders that expect a fixed size.
When building a bitstream using the tcl scripts bitstream compression can
be disabled by setting the ADI_NO_BITSTREAM_COMPRESSION environment
variable.
Initial tests show a reduction of a round 50% in size for most ADI
projects.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Dragos Bogdan
Adrian Costina
Rejeesh Kutty
Istvan Csomortani
Lars-Peter Clausen
Shrutika Redkar
AndreiGrozav