Since we are just doing a loopback all the logic is contained within the
IO bank. By using a BUFIO instead of a BUFG we avoid having to route the
clock signal from the IO bank to the middle of the FPGA and back to the IO
bank. This reduces the skew between clock and the data signals and makes
sure that the we can use the same design over a range of different
resolutions without having to calibrate the delay.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The ADV7511 samples on the rising edge. Update the data on the falling
edge, this gives us a larger margin and improved signal stability.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Those were added by mistake. It does not seem to be legal Verilog, but for
some reason Vivado accepts it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
ffff and 0000 are always reserved control characters when using embedded
syncs. So make sure that we never have them in the pixel data, even when
running in full-range mode.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Add a control bit to the register map that allows to bypass the chroma
sub-sampler in the axi_hdmi_tx core. This is primarily interned to be used
to send the test-pattern directly to the HDMI transmitter without modifying
it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Connect the raw HDMI data as generated by the ADV7604 to the ILA. For
debugging it is quite useful to be able to compare the data before and
after conversion pipeline.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Currently the hdmi_de_int signal is asserted one clock cycle too early in
packed 422 mode. As a result the EAV sequence ends up in the first pixel
and every other pixel is off by one.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check for both full range and limited range test-pattern sequences and only
if both don't match assert the tpm_oos signal.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Move the test pattern matcher to its own module. This makes it easier to
use it in other configurations as well.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The TPG is no longer part of the RX core and the corresponding bit in the
register map isn't hooked up to anything. So drop it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Connect the enable signal in the register map to the up_preset signal so
that it is possible to enable/disable to core at runtime.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Rejeesh Kutty
Adrian Costina
Istvan Csomortani
Lars-Peter Clausen