- The API changes name from `_SWITCH_APP` to `_SYSTEM_MODE_CTRL`.
- The registers and wires changes name to `system_mode_*`, instead of a
mix of `switch_app_*` and `fw_app_mode`.
production_test related files are moved out of this repository, since it
relates to production of the hardware and not the fpga construction or
firmware.
* -abc2, run two passes of 'abc' for slightly improved logic density
* -device u, optimize timing for up5k device
* -dff, run 'abc'/'abc9' with -dff (D flip flop) option
Update digest of application_fpga.bin
Flags:
--indentation_spaces=2
--wrap_end_else_clauses=true
Verify flag, used in checkfmt, only returns error if the last file is
not formatted, temporary fix implemented with grep.
To simplify versioning and isolate the different parts of the projects
to their own repositories, these hardware parts are moved to separate
locations.
- tk1, mta1-usb-dev, mta-usb-v1 and mta1-library moves to
https://github.com/tillitis/tk1-pcba
- tp1, mta1-usb-programmer, mta1-library and KiCad-RP Pico moves to
https://github.com/tillitis/tp1
- Relevant documentation referring to these boards are also moved to the
new repositories, links are updated to point to the new location
- The CERN-OHL-S license is removed from this repo
- CI is no longer building the TP1 firmware
* Break long lines and use tab to indent
* Remove use of "tee" since it messes up the return status
* Remove the generated application_fpga_par.json if nextpnr-ice40 fails
on timing.
* Change log file ending from .log to .txt
* Fix some spacing
The removal is coordinated and approved by YosysHQ, and are removed
to keep our headers uniform. These files were written on behalf of
Tillitis.
Two typos was corrected as well.
- Remove the define `NOCONSOLE`, add define `QEMU_CONSOLE`
- Inverse the use of it, add the define to have QEMU debug output in fw.
- Add a make target `qemu_firmware.elf` which builds the firmware with
QEMU console enabled.
Co-authored-by: Mikael Ågren <mikael@tillitis.se>
Move the logic implementing the RAM address and data
scrambling, descrambling into the RAM module. This cleans up
the top level, and makes it easier to change the scrambling
without chaning the top. In order to do correct scrambling the
address to the RAM core must be 16 bits, not 15.
Clean up some minor details at the top level, fixing text
aligment and grouping of ports in instances.
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
Add API address to trigger system reset.
When written to will send system_reset signal
to the reset generator, which then perform a complete
reset cycle of the FPGA system.
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
- Remove DUT variables from state display that was removed as part of
performance fix
- Corrected some incorrect display statements for expected unique ID and
byte counters
Co-authored-by: Daniel Jobson <jobson@tillitis.se>
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
Update:
- README
- testbench
- Symbolic names and variables in fw
- registers
- port name and wires
- Update fpga and fw digests
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
Remove the preceeding zero in the constant expression
that cause the simulator to warn about incorrect
bit size.
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
- Remove all text about other software than firmware.
- Remove the Reset section.
- Include a diagram and detailed explanation about the state machine
in close vicinity.
- Describe the test firmware.
Co-authored-by: Joachim Strömbergson <joachim@assured.se>
- Change SPI clock from 16 CPU cyles/flank to one cycle/flank
- Remove separate flank length wait states in the FSM
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
- Changed FSM states to localparams
- Added localparam for SPI clock divisor
- Added internal signal for divisor reached
- Improved comments to clarify code
- Fixed some minor textual nits
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
For Verilator >5.019 `-Wno-GENUNNAMED` needs to be added to LINT_FLAGS
to silence warnings from the cell library.
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
- Add more flags to catch the issues seen when linting the FPGA.
- Store issues in separate file for viewing. Remove with make clean.
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
The RAM address and data scrambling API was called twice, once before filling
RAM with random values, and once after. Since moving to a significantly
better PRNG (xorwow) this is now deemed unnecessary. See issue #225.
This changes both FPGA and firmware hashes.
Modify the loop to zeroise the FW-RAM instead of the
RAM. RAM is filled with random data at the start of main().
Changes firmware and bitstream digests.
Signed-off-by: Joachim Strömbergson <joachim@assured.se>
