osmo-e1-hardware/gateware
Sylvain Munaut 60f664fba3 gateware: Rework the low-level line state monitoring ticks
The 'tick' system was meant to allow the firmware to monitor the
low level state of the line, beyong just "not aligned", but it was
never really useful in the present state.

Now we have more tick source available (but only one can be measured
at the same time). More specifically, the firmware can monitor the
presence/absence of raw pulses (LOS condition), it can also monitor
the number of '1' pulses to detect an AIS signals, or simply the rate
of RX pulses (to tune the local oscillator to incoming signal rate).

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Change-Id: I31fa8a717a26643f1b6ca5644bee1d8c41a2512e
2024-04-30 16:08:14 +02:00
..
build@87481ca25e gateware/build: Update submodule 2022-08-25 17:05:01 +02:00
common gateware: Rework the low-level line state monitoring ticks 2024-04-30 16:08:14 +02:00
cores gateware: Rework the low-level line state monitoring ticks 2024-04-30 16:08:14 +02:00
doc gateware: Initial import of all common parts 2020-09-14 10:56:49 +02:00
e1-tracer gateware: Rework the low-level line state monitoring ticks 2024-04-30 16:08:14 +02:00
icE1usb gateware: Rework the low-level line state monitoring ticks 2024-04-30 16:08:14 +02:00
icE1usb-proto gateware: Rework the low-level line state monitoring ticks 2024-04-30 16:08:14 +02:00
README.md gateware/README.md: Fix typo (CERL->CERN) 2020-11-04 15:54:25 +01:00

README.md

E1 related gateware

This directory contains the iCE40 gateware for various boards hosted in this repository.

Licensing

Most of the cores/HDL in here is licensed under one of the CERN OHL 2.0 license. See the doc/ subdirectory for the full license texts and refer to each file header to know the license applicable to each file.

Some files have been imported from other projects with compatible licenses. Refer to each file header for the proper copyright and license information.

The repository also includes submodules which have their own licensing and copyright terms.