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Subversion Repositories System09

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Rev Log message Author Age Path
187 Partially works. Garbage on the ACIA due to baud clock problems. davidgb 2022d 20h /
186 Somewhat functional boot to SBUG. ACIA freq is wrong but sometimes works if hyperterm set to 115kBps davidgb 2022d 23h /
185 Reverted back to the single-step version - something was broken davidgb 2023d 01h /
184 update files to correctly produce flex9ram.vhd davidgb 2023d 01h /
183 update file extensions davidgb 2023d 01h /
182 Add a copy of the derived ROM contents so that you can go directly to ISE GUI without having to 'make roms' davidgb 2023d 01h /
181 Add a copy of the derived ROM contents so that you can go directly to ISE GUI without having to 'make roms' davidgb 2023d 01h /
180 removed xdc file since ISE 14.7 does not support XDC davidgb 2023d 02h /
179 Zybo port done to the same point as the Atlys port. The hardware appears to work but the ACIA is not communicating properly. davidgb 2023d 02h /
178 work on constraints file davidgb 2023d 13h /
177 work on zybo port davidgb 2023d 14h /
176 Don't delete system09_impact.cmd on 'clean' davidgb 2023d 15h /
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 2023d 15h /
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 2023d 18h /
173 Add another 16k BRAM for 56K total memory davidgb 2025d 14h /
172 Add 16k RAM davidgb 2025d 14h /
171 remove old Xess files davidgb 2025d 19h /
170 More debugging. Can now see cpu_addr incrementing correctly.
Added 32k BRAM 0000-7FFF.		 davidgb 2025d 19h /
169 Fixed clock connection and reset button polarity. Debug LED counting and cpu_clk now indicates some activity. davidgb 2026d 01h /
168 Added more pinloc info. Switched RS-232 to use PMOD connector for more h/w debug visibility. davidgb 2026d 01h /

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