RISC-V Debug Support v0.8.1

Changed

• debug_rom: Add rst

RISC-V Debug Support v0.7.0

Fixed

• 64-bit unaligned accesses (#145) @creinwar
• Various minor testbench fixes (#146)

Changed

• Halted, Resume and Exception addresses are now aligned to 8 bytes

RISC-V Debug Support v0.6.0

Fixed

• Testbench build (#141, #142)
• remote_bitbang tb build for newer GCC versions (#133) @epsilon537
• 32-bit access to abstract data (#27) @Silabs-ArjanB
• dm_mem: Clear state of hart upon ndmreset (#140) @andreaskurth
• dmi_jtag_tap: Bring all state to initial value in test-logic-reset (#139) @andreaskurth
• Fix DMI response when command or SBA are busy (#138) @andreaskurth

Changed

• Add expontential backoff to read_dmi in tb (#134) @colluca

RISC-V Debug Support v0.5.1

Fixed

• Fixed dmi_bscane_tap top-level signals

RISC-V Debug Support v0.5.0

Added

• Add sbaccess8 and sbaccess16 support (#106) @noytzach
• Implement SBA bad address error (#12) @msfchaffner
• Added random reset tests to dmi testbench.

Changed

• Implement dmihardreset functionaliy in dtmcs register.
• dmi_rst_ni of dm_top is now a synchronous signal. However, dmi_rst_no of
  dmi_jtag is glitch-free and asserted during all forms (functional or POR) of
  resets.

Fixed

• Fixed documentation (csr)
• Fixed reset value of sbcs register (#127) @msfchaffner
• Fixed various ascent lint warnings @msfchaffner
• Implement proper CDC flushing behavior on functional resets and JTAG resets (asynchronous or TestLogicReset driven).
• Fix JTAG non-compliance in TestLogicReset state (IR should reset to IDCODE).

RISC-V Debug Support v0.4.1

Added

Changed

Fixed

• Remove superfluous helper variable in dm_csrs.sv
• Synchronized Bender.yml entries
• Various Lint warnings

RISC-V Debug Support v0.4

Added

• Added parameter ReadByteEnable that may be disabled to revert SBA be behavior to 0 on reads
• Optional wrapper dm_obi_top.sv that wraps dm_top providing an OBI compliant interface
• tb that runs dm in conjunction with ri5cy and OpenOCD
• .travis-ci.yml running tb with verilator

Changed

• Made second scratch register optional (default is two) from @zarubaf
• Use latest version of CV32E40P in testbench (#82) @Silabs-ArjanB
• Move assertions into separate module (#82) @Silabs-ArjanB

Fixed

• Fix for SBA be when reading to match the request size from (#70) @jm4rtin
• Off-by-one error in data and progbuf end address from @pbing
• Haltsum1-3 calculation
• A DMI read of SBAddress0 andSBAddress0 will (wrongly) trigger SBBUSYERROR when
  the system bus master is busy (#93) @Silabs-ArjanB
• When the two scratch mode is being used, a0 was loaded instead of saved into
  scratch1 (#90) @Silabs-ArjanB
• dmireset can be accidentally triggered (#89) @Silabs-ArjanB
• enumeration lint issue in ProgBuf (#84) @Silabs-ArjanB
• Fix faulty assertion because of bad hartinfo_i in testbench (#82)
  @Silabs-ArjanB
• Return CmdErrBusy if accessing data or progbuf while command was executing
  (#79) @noytzach

RISC-V Debug Support v0.3

Added

• Documentation in doc/ from @imphil

Changed

• Various linting issues and cleanups from @msfschaffner

Fixed

• Corruption on debug exception entry @tomroberts-lowrisc
• truncation of selected_hart

RISC-V Debug Support v0.2

Added

• Add Bender.yml

Fixed

• Fix haltsum1, haltsum2 and haltsum3
• Fix minor linter issues

RISC-V Debug Support v0.1

Added

• Parametrize buswidth to support 32-bit and 64-bit cores
• Support arbitrary base addresses in debug ROM
• Add misc helper functions to facilitate code generation
• Add README
• Fork from Ariane

Changed

• Allow generic number of data registers
• Make JTAG IDCODE parametrizable

Removed

• Remove ariane specific packages

Fixed

• Fix resumeack and resumereq behaviour to be cleared and set according to debug
  specification
• Add missing JTAG test logic reset handling
• Fix resume logic in multihart situations
• Fix missing else(s) in system bus access
• Fix bad transitions into program buffer
• Fix error handling when using unsupported abstract commands
• Prevent harts from being in multiple states
• Fix various style issues