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--- en:projects:jop [2011/07/05 23:34] – [Create the Spartan-6 DDR memory interface] 109.230.136.10
+++ en:projects:jop [2011/07/06 11:15] – 84.181.78.148
@@ Line 1: / Line 1: @@
-[[http://www.jopdesign.com/|JOP - Java Optimized Processor]]
+====== Running JOP (Java Optimized Processor) on a ZTEX FPGA Board ======
-> JOP is one way to use a configurable Java processor in small embedded real-time systems. It shall help to increase the acceptance of Java for these systems.
+[[http://www.jopdesign.com/|JOP - Java Optimized Processor]] - is one way to use a configurable Java processor in small embedded real-time systems. It shall help to increase the acceptance of Java for these systems.
-Now JOP processor works on ZTEX boards
+This project explains how a JOP processor can be implemented on a [[http://www.ztex.de/usb-fpga-1/usb-fpga-1.11.e.html|ZTEX USB-FPGA Module 1.11c]] with Spartan6 LX25 FPGA. Currently only 16MB the DDR RAM (of 64MB) are supported. The FPGA utilization is about 23% which allows to build
+multiple cores in CMP JOP.
 ===== Download the fresh Source =====
@@ Line 38: / Line 39: @@
   * Memory Address Mapping Selection: Row, Bank, Column
-Once the controller is generated copy all the vhdl files from the user_design/rtl directory to xilinx/ztex/mig_37 directory and apply patch:
+Once the controller is generated copy all the VHDL files from the user_design/rtl directory to xilinx/ztex/mig_37 directory and apply patch:
 <code>patch < memc3_infrastructure.patch</code>
@@ Line 45: / Line 46: @@
 Run make in directory xilinx/ztex or load project xilinx/ztex/ise_13/ise_13.xise to [[en:ztex_boards:ztex_fpga_boards:first_steps_with_ise|ISE]]
+===== EZ-USB FX2 Firmware =====
+No special firmware is required in order to run JOP. The [[en:ztex_boards:ztex_fpga_boards:standalone|standalone firmware]]
+from the ZTEX SDK can be used as dummy firmware and to allow Bitstream uploading via USB.
 ===== Load bitstream =====
-Use [[en:software:FWLoader]] or Xilinx impact
+The bitstream can be uploaded via USB using [[en:software:FWLoader]] or via [[en:ztex_boards:ztex_fpga_boards:jtag|JTAG]]
+using Xilinx Impact.
 ===== Connect serial console =====
-Connect serial cable to line "A"
+In order to verify the functionality of the JOP a serial adapter cable need to be connected to the FPGA Board.
+By default, the serial port is connected to the following pins:
+^ Name  ^ FPGA ball  ^  Pin of the FPGA Board  ^ Pin at the Experimental board  ^
+| TX  | C13  | A13  | A13  |
+| RX  | A14  | A12  | A12  |
-  * tx PIN 12
+If other pins are preferred, lines around line 11 nedd to be changed.
-  * rx PIN 13
 ===== Compiling and Downloading the Java Application =====
-From root dir of jop make:
+From root directory of jop make:
 <code>make japp -e P1=bench P2=jbe P3=DoAll</code>