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Instructions for Setting up FLEX9
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XSA-3S1000 + XST3.0 + IDE harddrive
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1. Build the bitstream by going to the rtl/System09_Xess_-3S1000 and typing
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'make bit' in a cygwin shell.
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2. Connect a serial cable from the XST3.0 board to the serial port on the PC.
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3. Connect an IDE hard disk to the IDE connector on the XST3 board. It should be
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at least 128 MB for 4 logical Flex disk drives.
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4. Connect a PS/2 keyboard and VGA monitor to the XSA-3S1000 board.
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5. Open Hyperterm and configure the port for 57600 8-N-1.
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6. Download the bitstream to the FPGA using 'make xsload'. If you have the USB
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download cable, you can build and download the bitstream by typing 'make usbxsload'.
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7. Use the 'UF' command at the S-BUG prompt to format an empty drive.
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8. Use the 'UX' command at the S-BUG prompt to download the FLEX9 disk image
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using the XModem protocol in Hyperterm. The disk image file is FLEXESS.dsk.
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Downloading takes about 11 minutes at 57.6k baud.
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9. Flex9 is embedded in the bitstream to load in a block RAM on the FPGA. Once
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the disk image is downloaded, start FLEX by setting the program counter to $CD00
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(using ^P CD00 at the S-BUG prompt), then type 'G' at the S-BUG prompt. If things
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are working correctly Flex should request the date then give the "+++" prompt.
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10. Test the disk drive by typing 'DIR,0' at the flex prompt (no single quotes).
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It should list the files on drive 0.
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11. The UX download program writes a bootstrap loader on the disk after the disk
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image is downloaded. The Flex image must be linked to to the boot strap using
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the "LINK 0.FLEX9IDE.SYS" command at the FLEX prompt. Then, next time System09
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is powered on, simply issue the 'D' command at the S-BUG prompt to boot FLEX.
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