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[/] [openmsp430/] [trunk/] [core/] [rtl/] - Rev 138

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134 Add full ASIC support (low-power modes, DFT, ...).
Improved serial debug interface reliability.
olivier.girard 4480d 11h /openmsp430/trunk/core/rtl/
132 Update FPGA examples with the POP.B bug fix olivier.girard 4493d 10h /openmsp430/trunk/core/rtl/
130 Fixed POP.B bug (see Bugtracker http://opencores.org/bug,assign,2137 ) olivier.girard 4501d 09h /openmsp430/trunk/core/rtl/
128 Fixed CALL x(SR) bug (see Bugtracker http://opencores.org/bug,view,2111 ) olivier.girard 4577d 10h /openmsp430/trunk/core/rtl/
117 To facilitate commercial adoption of the openMSP430, the core has moved to a modified BSD license. olivier.girard 4753d 12h /openmsp430/trunk/core/rtl/
112 Modified comment. olivier.girard 4786d 11h /openmsp430/trunk/core/rtl/
111 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.
olivier.girard 4787d 11h /openmsp430/trunk/core/rtl/
106 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).
olivier.girard 4843d 09h /openmsp430/trunk/core/rtl/
105 Removed dummy memory read access for the MOV/PUSH/CALL/RETI instructions.
These were not problematic but this is simply cleaner that way.
olivier.girard 4858d 10h /openmsp430/trunk/core/rtl/
103 Removed the timescale from all RTL files.
Added possibility to exclude the "includes" statements from the RTL.
olivier.girard 4863d 16h /openmsp430/trunk/core/rtl/
102 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+
olivier.girard 4864d 09h /openmsp430/trunk/core/rtl/
101 Cosmetic change in order to prevent an X propagation whenever executing a byte instruction with an uninitialized memory location as source. olivier.girard 4864d 11h /openmsp430/trunk/core/rtl/
91 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.
olivier.girard 4876d 11h /openmsp430/trunk/core/rtl/
86 Update serial debug interface test patterns to make them work with all program memory configurations. olivier.girard 4899d 08h /openmsp430/trunk/core/rtl/
85 Diverse RTL cosmetic updates. olivier.girard 4899d 10h /openmsp430/trunk/core/rtl/
84 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.
olivier.girard 4904d 11h /openmsp430/trunk/core/rtl/
79 Update the GPIO peripheral to fix a potential synchronization issue. olivier.girard 4965d 12h /openmsp430/trunk/core/rtl/
74 Update serial debug interface to support memories with a size which is not a power of 2.
Update the software tools accordingly.
olivier.girard 5052d 11h /openmsp430/trunk/core/rtl/
72 Expand configurability options of the program and data memory sizes. olivier.girard 5079d 12h /openmsp430/trunk/core/rtl/
67 Added 16x16 Hardware Multiplier. olivier.girard 5226d 19h /openmsp430/trunk/core/rtl/
66 The peripheral templates are now under BSD license.
Developers of new peripherals based on these templates won't have to disclose their code.
olivier.girard 5226d 23h /openmsp430/trunk/core/rtl/
60 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 ).
olivier.girard 5258d 10h /openmsp430/trunk/core/rtl/
57 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.
olivier.girard 5260d 08h /openmsp430/trunk/core/rtl/
53 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.
olivier.girard 5265d 13h /openmsp430/trunk/core/rtl/
34 To avoid potential conflicts with other Verilog modules in bigger projects, the openMSP430 sub-modules have all been renamed with the "omsp_" prefix. olivier.girard 5294d 12h /openmsp430/trunk/core/rtl/
33 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.
olivier.girard 5294d 13h /openmsp430/trunk/core/rtl/
23 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).
olivier.girard 5415d 15h /openmsp430/trunk/core/rtl/
17 Updated header with SVN info olivier.girard 5441d 10h /openmsp430/trunk/core/rtl/
2 Upload complete openMSP430 project to the SVN repository olivier.girard 5476d 10h /openmsp430/trunk/core/rtl/

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