Release v1.6.2 · stnolting/neorv32

This list shows the main core changes since the last release. See the project's changelog for more information.

🐛 Bug Fixes

fixed signal and generic propagation in rtl/system_integration and setups/radiant/UPduino_v3

⚠️ changes handling of software makefile's MARCH and MABI variables (see #184): omitting -march and -mabi flags for these variables
⚠️ reworked fast interrupt request (FIRQ) CPU system: FIRQs are now high-level-triggered and have to stay asserted until explicitly acknowledged (see #176)
⚠️ removed mstatus.TW (timeout wait) CSR bit: wfi instruction is now always allowed to execute in less-privileged modes
⚠️ removed sleep_i signal of custom functions subsystem (CFS)
🔒 CPU now ensures that all illegal instructions do not commit any potential architecture state changes
on-chip debugger: wfi now executes as nop when in debug-mode (also during single-stepping)
NEOLED: added new control register bit to configure interrupt condition
SLINK: added fine-grained per-link interrupt configuration (see #182)
UART0, UART1: added optional and configurable RX and TX FIFOs, added fine-grained IRQ configuration (see #183)
CPU logic, timing and area optimizations

Merged pull requests:

#170 🐛 [rtl/system_integration] fix uart1 rx/tx signals
#173 Add argument to makefile to simplify Continuous Integration flow
#174 [setups/vivado] Mention the XHub Stores menu item for installing board support
#175 [setups/vivado] Fix fileset paths
#176 [rtl/core] make FIRQs level-triggered
#177 [docs/datasheet] Fix neoled register bits documentation
#178 [rtl/system_integration] add NEOLED FIFO depth generic to AXI4 wrapper
#180 [docs/datasheet] fix neoled register table formatting
#182 [SLINK] add fine-grained IRQ configuration
#183 [UARTs] add RX & TX FIFOs
#184 ⚠️ [makefile] modify handling of MARCH and MABI variables

Closed issues: