v2.0

Only the most important changes are listed here, see CHANGELOG.md for a complete list.

Added

• rtl: add optional iDMA module with OBI interface
• rtl: add wfi trampoline bootrom

Changed

• rtl: replace fetch_en_i pin with testmode_i
• rtl: replace timer_unit with RISC-V CLINT and obi_timer
• rtl: simplify configuration in croc_pkg.sv
• sw: change success exit code from 1 to 0
• treewide: replace Makefiles with bash/tcl scripts
• tools: update to version 2025.12
• openroad: split flow into separate parts

Fixed

• rtl: fix OBI req/gnt decoupling per spec R-22
• rtl: fix CVE2 tracing wrapper
• test: flush uart buffer at end of simulation

v1.2

Only the most important changes are listed here, see CHANGELOG.md for a complete list.

Added

• hw: replace apb_uart with new obi_uart

Changed

• tools: update to version 2025.07.pre1
• pdk: update cockpitrc (ETHZ internal use)

Fixed

• openroad: fix min-area violations caused by extract_parasitics

v1.1

Only the most important changes are listed here, see CHANGELOG.md for a complete list.

Added

• sw: add various peripheral functions
• sw: add expanded helloworld as peripheral test
• pdk: add ETHZ cockpit integration
• openroad: add parasitic extraction

Changed

• hw: make SRAM pin A_DLY configurable (used to be tied to low when datasheet recommends tie to high)
  IMPORTANT: This bug may create SRAM-internal timing violations; update strongly recommended

Fixed

• hw: fix OBI connections to timer peripheral
• openroad: fix LVS netlist

v1.0

First stable Croc SoC with flow