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Update README.md
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jbilander authored Feb 13, 2023
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Expand Up @@ -9,6 +9,10 @@ This is WORK IN PROGRESS, a DIY hobby project. If you are going to make and sell

The firmware for this board is in a separate repository available here: <br />
https://github.com/jbilander/SF2000-FW
<br />
<br />
The ROM image to burn to the 39LF040-chip (U14) can be downloaded from here: <br />
https://gitlab.com/MHeinrichs/CDTV-RAM-IDE/-/blob/master/Prog/ATOKTACOMBINED.rom-512.bin

***

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***

The FPGA used in this Accelerator board, please note it has to be the Voltage `UV` version because of 3.3V is being used for all VCC/VCCIO on the Accelerator:
<br />
<a href="images/SF2000_FPGA_GW1N-UV9LQ144.png">
<img src="images/SF2000_FPGA_GW1N-UV9LQ144.png" width="640" height="270">
</a>

***

### Ordering details (JLCPCB):

<a href="images/SF2000_JLCPCB_ordering_pic1.png">
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<img src="images/SF2000_pic30.jpg" width="256" height="192">
</a>
<br />
<br />
But for running more stable a few wait states can be added to the IDE/ATA, <br />
https://github.com/jbilander/SF2000-FW/blob/main/rtl/ata.v#L56 <br />
resulting in a bit slower IDE:
<br />
<br />
<a href="images/SF2000_pic31.jpg">
<img src="images/SF2000_pic31.jpg" width="256" height="192">
<img src="images/SF2000_pic31.jpg" width="512" height="384">
</a>
<br />
<br />
JTAG-header description:
<br />
<a href="images/SF2000_JTAG_pinout_desciption.jpg">
<img src="images/SF2000_JTAG_pinout_desciption.jpg" width="505" height="303">
</a>


***

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