All input and output delays should be referenced to a virtual clock.
If the input and output delays reference base clocks or PLL clocks rather than
virtual clocks, the intra- and inter-clock transfer clock uncertainties,
determined by derive_clock_uncertainty, are incorrectly applied to the I/O ports.
See mnl_timequest_cookbook.pdf for more info.
The process ad_xcvrcon has a device_clk attribute which can be used to
connect a custom device clock to the XCVR. Fix the proc call so we can
simplify the block design script.
Use the new util_cpack2 and util_upack2 cores. They have lower utilization
that the old util_cpack and util_upack cores.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The loopback on the unused gpio inputs consumes routing resources
while does not gives any value for the software.
Connect these lines to zero instead.
Some projects use the ad_iobuf on IOs that are not bidirectional
producing synthesis warnings.
The change fixes warnings like:
[Synth 8-6104] Input port 'gpio_bd_i' has an internal driver
[Synth 8-6104] Input port 'gpio_status' has an internal driver
- remove interrupts from system_top
- for all suported carriers:
- remove all interrupt bd pins
- connect to GND all initial unconnected interrupt pins
- update ad_cpu_interrupt procedure to disconnect a interrupt from GND
before connectiong it to another pin.
Moved XCVR related connections to HP0, where the HP shares the MUX with the Video DMA
HP1 and HP2 are used for RX OS and RX DMAs, sharing the MUX. Usually they shouldn't run at the same time.
HP3 is used for TX DMA, sharing the MUX with the FPD DMA controller
All HPx and DMA buswidths have been increased to 128 bits
The HPx-DMA clock has been increased to 300 MHz
DAC FIFO address size has been increased to 17
Istvan Csomortani
AndreiGrozav
Arpadi
Laszlo Nagy
Adrian Costina
Lars-Peter Clausen