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[/] [System09/] [trunk/] [rtl/] [System09_Digilent_Atlys/] [system09.vhd] - Rev 186

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Rev Log message Author Age Path
186 Somewhat functional boot to SBUG. ACIA freq is wrong but sometimes works if hyperterm set to 115kBps davidgb 622d 22h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd
185 Reverted back to the single-step version - something was broken davidgb 622d 23h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd
175 Corrected RS-232 pin connections. Cleaned up code. Removed debug code.
System boots but the baud clock must be wrong - get garbage on hyperterm.
davidgb 623d 14h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd
174 Added button debounce. Single-step button. multiplex LED to show nibbles of addr and data for debug. Confirmed that CPU is reading from sys09swt.vhd SBug ROM correctly. Still need to debug ACIA output. davidgb 623d 17h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd
173 Add another 16k BRAM for 56K total memory davidgb 625d 13h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd
170 More debugging. Can now see cpu_addr incrementing correctly.
Added 32k BRAM 0000-7FFF.
davidgb 625d 18h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd
169 Fixed clock connection and reset button polarity. Debug LED counting and cpu_clk now indicates some activity. davidgb 626d 00h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd
162 stripped down to most basic system (no vdu, keyboard, sdram, ide, etc). davidgb 626d 13h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd
148 Check in Atlys work davidgb 870d 04h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd
141 Started work on version for Digilent Atlys SPARTAN6 board (does not build, just infrastructure to start the project) davidgb 905d 21h /System09/trunk/rtl/System09_Digilent_Atlys/system09.vhd

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