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[/] [openmsp430/] [trunk/] [core/] [rtl/] - Rev 122

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117 To facilitate commercial adoption of the openMSP430, the core has moved to a modified BSD license. olivier.girard 4825d 16h /openmsp430/trunk/core/rtl
112 Modified comment. olivier.girard 4858d 14h /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 4859d 14h /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 4915d 13h /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 4930d 14h /openmsp430/trunk/core/rtl
103 Removed the timescale from all RTL files.
Added possibility to exclude the "includes" statements from the RTL.		 olivier.girard 4935d 20h /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 4936d 13h /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 4936d 15h /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 4948d 15h /openmsp430/trunk/core/rtl
86 Update serial debug interface test patterns to make them work with all program memory configurations. olivier.girard 4971d 12h /openmsp430/trunk/core/rtl
85 Diverse RTL cosmetic updates. olivier.girard 4971d 14h /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 4976d 15h /openmsp430/trunk/core/rtl
79 Update the GPIO peripheral to fix a potential synchronization issue. olivier.girard 5037d 16h /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 5124d 15h /openmsp430/trunk/core/rtl
72 Expand configurability options of the program and data memory sizes. olivier.girard 5151d 16h /openmsp430/trunk/core/rtl
67 Added 16x16 Hardware Multiplier. olivier.girard 5298d 23h /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 5299d 03h /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 5330d 14h /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 5332d 12h /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 5337d 17h /openmsp430/trunk/core/rtl

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