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[/] [System09/] [trunk/] [rtl/] - Rev 202

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Rev Log message Author Age Path
202 Updated Zybo design to reintroduce VDU8 driving the PmodVGA on pmod connectors JC+JD.
This version also uses PmodUSBUART on JE. To use PmodRS232 you must edit the .ucf file and select the appropriate pin LOCs.		 davidgb 1165d 17h /System09/trunk/rtl/
201 A copy of XSA-3S1000.ucf and System09_Xess_XSA-3S1000.vhd that have dual serial ports with no handshake. davidgb 1172d 12h /System09/trunk/rtl/
200 Started adding back in video support - VDU8 instantiated and RGBHV bits sent to Pmod JE port. davidgb 1179d 09h /System09/trunk/rtl/
199 Add in full RS-232 handshake for PmodUSBUART. davidgb 1180d 11h /System09/trunk/rtl/
198 Update UCF file to select Pmod pinout compatible with the PmodUSBUART.
To use, make sure PmodUSBUART has JP1 as "LCL". Connect the usb to the uart and open the terminal program. Test the transmission via the LED on the Pmod. Then (carefully) plug into Pmod port on Zybo.		 davidgb 1180d 12h /System09/trunk/rtl/
197 Updates from John Kent:
-- 4.5 John Kent 2012-02-04 Re-arranged Rx & Tx Baud clock edge detect.
-- 4.6 John Kent 3021-01-30 Double sample RxC, TxC, and RxD with cpu_clk
-- for 125MHz Clock on Zybo Z7 board.		 davidgb 1187d 09h /System09/trunk/rtl/
196 Working system boots to SBUG. Uses RS232 Pmod (no handshake) and 57600,8,N,1 (no handshake) hyperterm. davidgb 1187d 09h /System09/trunk/rtl/
195 Switched to using the UART over usb for the console port. davidgb 1187d 10h /System09/trunk/rtl/
194 Finally have a working board. davidgb 1187d 10h /System09/trunk/rtl/
193 Fixed part of the ACIA problem - the polarity of the NMI was wrong. Now get clean output but input to the ACIA is not working. Also fixed the 32k addressing davidgb 1187d 14h /System09/trunk/rtl/
192 Fixed part of the ACIA problem - the polarity of the NMI was wrong. Now get clean output but input to the ACIA is not working. davidgb 1187d 14h /System09/trunk/rtl/
189 Remove unused file. Created by ISE gui. davidgb 1194d 05h /System09/trunk/rtl/
188 update options to match what the ISE gui does davidgb 1194d 05h /System09/trunk/rtl/
187 Partially works. Garbage on the ACIA due to baud clock problems. davidgb 1194d 10h /System09/trunk/rtl/
186 Somewhat functional boot to SBUG. ACIA freq is wrong but sometimes works if hyperterm set to 115kBps davidgb 1194d 13h /System09/trunk/rtl/
185 Reverted back to the single-step version - something was broken davidgb 1194d 15h /System09/trunk/rtl/
180 removed xdc file since ISE 14.7 does not support XDC davidgb 1194d 16h /System09/trunk/rtl/
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 1194d 16h /System09/trunk/rtl/
178 work on constraints file davidgb 1195d 03h /System09/trunk/rtl/
177 work on zybo port davidgb 1195d 03h /System09/trunk/rtl/
176 Don't delete system09_impact.cmd on 'clean' davidgb 1195d 05h /System09/trunk/rtl/
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 1195d 05h /System09/trunk/rtl/
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 1195d 08h /System09/trunk/rtl/
173 Add another 16k BRAM for 56K total memory davidgb 1197d 04h /System09/trunk/rtl/
172 Add 16k RAM davidgb 1197d 04h /System09/trunk/rtl/
171 remove old Xess files davidgb 1197d 09h /System09/trunk/rtl/
170 More debugging. Can now see cpu_addr incrementing correctly.
Added 32k BRAM 0000-7FFF.		 davidgb 1197d 09h /System09/trunk/rtl/
169 Fixed clock connection and reset button polarity. Debug LED counting and cpu_clk now indicates some activity. davidgb 1197d 15h /System09/trunk/rtl/
168 Added more pinloc info. Switched RS-232 to use PMOD connector for more h/w debug visibility. davidgb 1197d 15h /System09/trunk/rtl/
167 Update MAP_FLAGS for z20. Update UCF to have Pmod JC for the RS-232 Pmod davidgb 1198d 04h /System09/trunk/rtl/

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