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Rev Log message Author Age Path
203 Added a parameterized ram model. davidgb 1105d 12h /
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 1105d 13h /
201 A copy of XSA-3S1000.ucf and System09_Xess_XSA-3S1000.vhd that have dual serial ports with no handshake. davidgb 1112d 07h /
200 Started adding back in video support - VDU8 instantiated and RGBHV bits sent to Pmod JE port. davidgb 1119d 05h /
199 Add in full RS-232 handshake for PmodUSBUART. davidgb 1120d 06h /
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 1120d 08h /
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 1127d 05h /
196 Working system boots to SBUG. Uses RS232 Pmod (no handshake) and 57600,8,N,1 (no handshake) hyperterm. davidgb 1127d 05h /
195 Switched to using the UART over usb for the console port. davidgb 1127d 06h /
194 Finally have a working board. davidgb 1127d 06h /
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 1127d 09h /
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 1127d 09h /
191 check in file so that you do not need to generate it when running ISE in gui davidgb 1128d 06h /
190 check in file so that you do not need to generate it when running ISE in gui davidgb 1128d 06h /
189 Remove unused file. Created by ISE gui. davidgb 1134d 00h /
188 update options to match what the ISE gui does davidgb 1134d 01h /
187 Partially works. Garbage on the ACIA due to baud clock problems. davidgb 1134d 06h /
186 Somewhat functional boot to SBUG. ACIA freq is wrong but sometimes works if hyperterm set to 115kBps davidgb 1134d 09h /
185 Reverted back to the single-step version - something was broken davidgb 1134d 10h /
184 update files to correctly produce flex9ram.vhd davidgb 1134d 10h /

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