Subversion Repositories openmsp430

2011-06-23 [r117]

        * To facilitate commercial adoption of the openMSP430, the core has

          moved to a modified BSD license.

2011-05-29 [r115]

        * Add linker script example.

2011-05-21 [r112]

        * Modified comment.

2011-05-20 [r111]

        * Re-organized the "openMSP430_defines.v" file. Re-defined the

          CPU_ID register of the debug interface (in particular to support

          custom user versioning). Added RTL configuration possibility to

          expand the peripheral address space from 512B (0x0000 to 0x0200)

          to up to 32kB (0x0000 to 0x8000). As a consequence the per_addr

          bus width goes from 8 to 14 bits and the peripherals address

          decoders have been updated accordingly.

2011-03-25 [r106]

        * Separated the Timer A defines from the openMSP430 ones. Added the

          "dbg_en" port in order to allow a separate reset of the debug

          interface. Added the "core_en" port (when cleared, the CPU will

          stop execution, the dbg_freeze signal will be set and the aclk &

          smclk will be stopped). Renamed "per_wen" to "per_we" to prevent

          confusion with active low signals. Removed to missing unused

          flops when the DBG_EN is not defined (thanks to Mihai

          contribution).

2011-03-10 [r105]

        * Removed dummy memory read access for the MOV/PUSH/CALL/RETI

          instructions. These were not problematic but this is simply

          cleaner that way.

2011-03-05 [r103]

        * Removed the timescale from all RTL files. Added possibility to

          exclude the "includes" statements from the RTL.

2011-03-04 [r102]

        * Fixed bug reported by Mihai ( http://opencores.org/bug,view,1955

          ). The following PUSH instructions are now working as expected: -

          indexed mode: PUSH x(R1) - indirect register mode: PUSH @R1 -

          indirect autoincrement: PUSH @R1+

2011-03-04 [r101]

        * Cosmetic change in order to prevent an X propagation whenever

          executing a byte instruction with an uninitialized memory

          location as source.

2011-02-28 [r99]

        * Small fix for CVER simulator support.

2011-02-28 [r98]

        * Added support for VCS verilog simulator. VPD and TRN waveforms

          can now be generated.

2011-02-24 [r95]

        * Update some test patterns for the additional simulator supports.

2011-02-24 [r94]

        * Thanks to Mihai-Costin Manolescu's contribution, the simulation

          scripts now support the following simulators: - Icarus Verilog -

          Cver - Verilog-XL - NCVerilog - Modelsim

2011-02-20 [r91]

        * Fixed bug when an IRQ arrives while CPU is halted through the

          serial debug interface. This bug is CRITICAL for people using

          working with interrupts and the Serial Debug Interface.

2011-01-28 [r86]

        * Update serial debug interface test patterns to make them work

          with all program memory configurations.

2011-01-28 [r85]

        * Diverse RTL cosmetic updates.

2011-01-23 [r84]

        * Update SRAM model in the core testbench to prevent the IEEE

          warning when running simulations. Update watchdog to fix NMI

          synchronisation problem. Add synchronizers for the PUC signal in

          the debug interface.

2010-12-05 [r80]

        * Create initial version of the Actel FPGA implementation example.

2010-11-23 [r79]

        * Update the GPIO peripheral to fix a potential synchronization

          issue.

2010-11-18 [r76]

        * Add possibility to simulate C code within the "core" environment.

2010-08-28 [r74]

        * Update serial debug interface to support memories with a size

          which is not a power of 2. Update the software tools accordingly.

2010-08-03 [r73]

        * Update all bash scripts headers with "#!/bin/bash" instead of

          "#!/bin/sh". This will prevent compatibility problems in systems

          where bash isn't the default shell.

2010-08-01 [r72]

        * Expand configurability options of the program and data memory

          sizes.

2010-03-07 [r67-68]

        * Update synthesis scripts with the hardware multiplier support.

        * Added 16x16 Hardware Multiplier.

2010-03-07 [r66]

        * The peripheral templates are now under BSD license. Developers of

          new peripherals based on these templates won't have to disclose

          their code.

2010-02-24 [r65]

        * Add possibility to disable waveform dumping by setting the

          OMSP_NODUMP environment variable to 1.

2010-02-14 [r64]

        * Add Actel synthesis environment for size and speed analysis.

2010-02-14 [r63]

        * Add Altera synthesis environment for size and speed analysis.

2010-02-14 [r62]

        * Add Xilinx synthesis environment for size&speed analysis.

2010-02-03 [r60]

        * Cleanup of the PC (R0) generation logic. Formal equivalence was

          shown between the new and old code with Synopsys' Formality (to

          make sure that nothing has been broken :-P ).

2010-02-01 [r58]

        * Update the debug hardware breakpoint verification patterns to

          reflect the latest design updates.

2010-02-01 [r57]

        * Update design to exclude the range mode from the debug hardware

          breakpoint units. As this feature is not used by GDB, it has been

          disabled in order to improve the timings and save a bit of

          area/utilisation. Note that if required, this feature can be

          re-enabled through the `HWBRK_RANGE define located in the

          "openMSP430_defines.v" file.

2010-01-28 [r56]

        * Update Design Compiler Synthesis scripts.

2010-01-27 [r55]

        * Add a "sandbox" test pattern to play around with the simulation

          :-P

2010-01-27 [r54]

        * Update FPGA projects with the combinatorial loop fixed.

2010-01-27 [r53]

        * Fixed the following combinatorial timing loop: 1- irq_detect

          (omsp_frontend) 2- decode (omsp_frontend) 3- dbg_swbrk (omsp_dbg)

          4- halt_flag_set (omsp_dbg) 6- dbg_halt_cmd (omsp_dbg) 7-

          irq_detect (omsp_frontend) Without this fix, problem could occur

          whenever an IRQ request arrives during a software breakpoint

          instruction fetch.

2009-12-29 [r34]

        * To avoid potential conflicts with other Verilog modules in bigger

          projects, the openMSP430 sub-modules have all been renamed with

          the "omsp_" prefix.

2009-12-29 [r33]

        * In order to avoid confusion, the following changes have been

          implemented to the Verilog code: - renamed the "rom_*" ports and

          defines to "pmem_*" (program memory). - renamed the "ram_*" ports

          and defines to "dmem_*" (data memory). In addition, in order to

          prevent potential conflicts with the Verilog defines of other

          IPs, a Verilog undefine file has been created.

2009-08-30 [r23]

        * Renamed the "openMSP430.inc" file to "openMSP430_defines.v" &

          added the "timescale.v" file. In order to follow the same

          structure as other OpenCores projects, the timescale and the

          defines are now included from within the Verilog files (using the

          `include construct).

2009-08-04 [r19]

        * added SVN property for keywords

2009-08-04 [r18]

        * Updated headers with SVN info

2009-08-04 [r17]

        * Updated header with SVN info

2009-07-13 [r6]

        * Some more SVN ignore properties...

2009-06-30 [r2]

        * Upload complete openMSP430 project to the SVN repository