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[/] [open8_urisc/] [trunk/] [VHDL/] [o8_ram_1k.vhd] - Rev 227

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Rev	Log message	Author	Age	Path
224	Finished new Open8 bus record, which now includes the clock, reset and a microsecond tick. The CPU now accepts a clock and pll_locked signal, which it uses to generate the system reset in the bus record. It also contains a simple microsecond counter to feed the usec_tick in the record. This logic was removed from the real time clock and system timer entities, which now use the global version. Bus connections should be dramatically simplified, as only the read logic and interrupts are still run as separate signals.	jshamlet	1709d 23h	/open8_urisc/trunk/VHDL/o8_ram_1k.vhd
223	Added an OPEN8_BUS_TYPE record to simplify connection to Open8 modules. The CPU now passes and Open8_Bus out, which supplies the bus address, write enable, write data, and read enable. Read data and interrupts are still handled as separate signals, since they are muxed/connected at the next level up.	jshamlet	1710d 16h	/open8_urisc/trunk/VHDL/o8_ram_1k.vhd
217	Broke out the vdsm8 as a separate entity, since it is used in several places, Even MORE code cleanup.	jshamlet	1711d 17h	/open8_urisc/trunk/VHDL/o8_ram_1k.vhd
194	Cleaned up licensing sections	jshamlet	1725d 19h	/open8_urisc/trunk/VHDL/o8_ram_1k.vhd
191	Cleaned up comments, added back the OPEN8_NULLBUS constant, and added some new modules for ADCs and LCD displays. Also made the button input module more configurable by moving the debounce code to a separate entity and using generics to instantiate it.	jshamlet	1725d 20h	/open8_urisc/trunk/VHDL/o8_ram_1k.vhd
174	Added ROM/RAM wrappers	jshamlet	3270d 17h	/open8_urisc/trunk/VHDL/o8_ram_1k.vhd

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