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‎LICENSE

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‎README.md

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@@ -66,11 +66,7 @@ Ryzee119 provides the Xilinx CPLD's source code for LPC translation, but you sti
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I recently ran across a web article that showed JTAG programming a Xilinx FPGA via a Raspberry PI using a tool called XC3SPROG and I thought that would be a great platform to program a Xenium's CPLD !!
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See: https://linuxjedi.co.uk/2020/12/01/programming-xilinx-jtag-from-a-raspberry-pi/
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Now - if you can also get it to upload the BIOS to the Xenium Flash memory, that would make the PERFECT little Xenium programmer and for $5 more, you can make it a wireless remote and even standalone end-to-end OpenXenium mod chip programmer!!
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I downloaded the XC3SPROG tool and it worked fantastic! I could JTAG program the Xilinx CPLD in 12 seconds flat!!
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I extracted pieces from XC3SPROG source code that will allow JTAG programming of just the Xenium CPLD and it worked fantastic! I can JTAG program the Xilinx CPLD in 12 seconds flat!!
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So, I set about looking at how to bit-bang LPC through the Raspberry PI's GPIO ports and program Xenium Flash memory.
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- Clone this repo by running `git clone https://github.com/kooscode/xenium-programmer.git`
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- Run `./install` to download, build and install all the above mentioned tools.
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- This might take a while - please be patient!
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- BTW - the XC3SPROG build takes a while and has a bunch of warnings.. its normal..
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-------------
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## -- HOOKING UP THE HARDWARE --
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![jtag-pinout](images/connections.png)
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### JTAG PROGRAMMING PINS
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- You need to hook up the JTAG pins for XC3SPROG in a specific way.. AFAIK, they are not configurable..
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- The JTAG pins are configurable by editing the `XeniumDefines.h` file
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- I chose these pins for XC3SPROG compatability, use them as is, or change it as you see fit..
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![jtag-pinout](images/jtag-pinout.png)
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### FLASH PROGRAMMING PINS
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- These pins are configurable in the `BitBus.cpp` file of the `xenium-flash` app source.
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- The FLASH pins are configurable by editing the `XeniumDefines.h` file.
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- I chose these pins purely for convenience of my board layout, use them as is, or change it as you see fit..
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![bitbus-pinout](images/bitbus-pinout.png)

‎firmware/xeniumflash.v

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/* 4-bit "BitBus" to Flash translator for OpenXenium
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Copyright (C) 2019-2020 Koos du Preez ([email protected])
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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module xeniumflash(
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// led
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output reg [2:0] led,

‎xenium-flash/src/flash/BitBus.cpp

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/* Custom 4-bit "BitBus"
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Copyright (C) 2019-2020 Koos du Preez ([email protected])
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "BitBus.hpp"
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#include <thread>

‎xenium-flash/src/flash/BitBus.hpp

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/* Custom 4-bit "BitBus"
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Copyright (C) 2019-2020 Koos du Preez ([email protected])
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef XK_BITBUS_
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#define XK_BITBUS_
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‎xenium-flash/src/flash/Flash.cpp

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/* Programming a SPANSION flash via 4-bit bus
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Copyright (C) 2019-2020 Koos du Preez ([email protected])
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "Flash.hpp"
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#include <fstream>

‎xenium-flash/src/flash/Flash.hpp

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/* Programming a SPANSION flash via 4-bit bus
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Copyright (C) 2019-2020 Koos du Preez ([email protected])
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef XK_FLASH_
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#define XK_FLASH_
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‎xenium-flash/src/jtag/IOXenium.h

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/* WiringPI implementation of XC3SPROG IOBase
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/* WiringPI implementation of for Xenium CPLD
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Copyright (C) 2019-2020 Koos du Preez ([email protected])
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‎xenium-flash/src/xenium-flash.cpp

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/* Programming a FLASH on OpenXenium
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Copyright (C) 2019-2020 Koos du Preez ([email protected])
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <iostream>
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#include <fstream>

‎xenium-flash/src/xenium-jtag.cpp

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/* Programming a CPLD on OpenXenium
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Copyright (C) 2019-2020 Koos du Preez ([email protected])
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <iostream>
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#include <memory>
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