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authorSergiusz 'q3k' Bazański <q3k@q3k.org>2014-11-16 09:52:46 +0100
committerSergiusz 'q3k' Bazański <q3k@q3k.org>2014-11-16 09:52:46 +0100
commiteb146e5b7fc5657f6de1589949e41dbcf1788d40 (patch)
tree739e0962b45f3621b5234ac9a51a569d7fa446e2
downloadec-prom-dump-master.tar.gz
ec-prom-dump-master.tar.bz2
ec-prom-dump-master.tar.xz
ec-prom-dump-master.zip
First commitHEADmaster
-rw-r--r--.gitignore61
-rw-r--r--ec-prom-dump.xise368
-rw-r--r--top.ucf35
-rw-r--r--top.v147
-rw-r--r--uart.v170
5 files changed, 781 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a93d456
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,61 @@
+# Created by https://www.gitignore.io
+
+### XilinxISE ###
+# intermediate build files
+*.bgn
+*.bit
+*.bld
+*.cmd_log
+*.drc
+*.ll
+*.lso
+*.msd
+*.msk
+*.ncd
+*.ngc
+*.ngd
+*.ngr
+*.pad
+*.par
+*.pcf
+*.prj
+*.ptwx
+*.rbb
+*.rbd
+*.stx
+*.syr
+*.twr
+*.twx
+*.unroutes
+*.ut
+*.xpi
+*.xst
+*_bitgen.xwbt
+*_envsettings.html
+*_map.map
+*_map.mrp
+*_map.ngm
+*_map.xrpt
+*_ngdbuild.xrpt
+*_pad.csv
+*_pad.txt
+*_par.xrpt
+*_summary.html
+*_summary.xml
+*_usage.xml
+*_xst.xrpt
+
+# project-wide generated files
+*.gise
+par_usage_statistics.html
+usage_statistics_webtalk.html
+webtalk.log
+webtalk_pn.xml
+
+# generated folders
+iseconfig/
+xlnx_auto_0_xdb/
+xst/
+_ngo/
+_xmsgs/
+
diff --git a/ec-prom-dump.xise b/ec-prom-dump.xise
new file mode 100644
index 0000000..cff5cbc
--- /dev/null
+++ b/ec-prom-dump.xise
@@ -0,0 +1,368 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<project xmlns="http://www.xilinx.com/XMLSchema" xmlns:xil_pn="http://www.xilinx.com/XMLSchema">
+
+ <header>
+ <!-- ISE source project file created by Project Navigator. -->
+ <!-- -->
+ <!-- This file contains project source information including a list of -->
+ <!-- project source files, project and process properties. This file, -->
+ <!-- along with the project source files, is sufficient to open and -->
+ <!-- implement in ISE Project Navigator. -->
+ <!-- -->
+ <!-- Copyright (c) 1995-2013 Xilinx, Inc. All rights reserved. -->
+ </header>
+
+ <version xil_pn:ise_version="14.7" xil_pn:schema_version="2"/>
+
+ <files>
+ <file xil_pn:name="top.v" xil_pn:type="FILE_VERILOG">
+ <association xil_pn:name="BehavioralSimulation" xil_pn:seqID="1"/>
+ <association xil_pn:name="Implementation" xil_pn:seqID="2"/>
+ </file>
+ <file xil_pn:name="uart.v" xil_pn:type="FILE_VERILOG">
+ <association xil_pn:name="BehavioralSimulation" xil_pn:seqID="2"/>
+ <association xil_pn:name="Implementation" xil_pn:seqID="1"/>
+ </file>
+ <file xil_pn:name="top.ucf" xil_pn:type="FILE_UCF">
+ <association xil_pn:name="Implementation" xil_pn:seqID="0"/>
+ </file>
+ </files>
+
+ <properties>
+ <property xil_pn:name="AES Initial Vector spartan6" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="AES Key (Hex String) spartan6" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Add I/O Buffers" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Allow Logic Optimization Across Hierarchy" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Allow SelectMAP Pins to Persist" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Allow Unexpanded Blocks" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Allow Unmatched LOC Constraints" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Allow Unmatched Timing Group Constraints" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Analysis Effort Level" xil_pn:value="Standard" xil_pn:valueState="default"/>
+ <property xil_pn:name="Asynchronous To Synchronous" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Auto Implementation Compile Order" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Auto Implementation Top" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Automatic BRAM Packing" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Automatically Insert glbl Module in the Netlist" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Automatically Run Generate Target PROM/ACE File" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="BRAM Utilization Ratio" xil_pn:value="100" xil_pn:valueState="default"/>
+ <property xil_pn:name="Bring Out Global Set/Reset Net as a Port" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Bring Out Global Tristate Net as a Port" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Bus Delimiter" xil_pn:value="&lt;>" xil_pn:valueState="default"/>
+ <property xil_pn:name="Case" xil_pn:value="Maintain" xil_pn:valueState="default"/>
+ <property xil_pn:name="Case Implementation Style" xil_pn:value="None" xil_pn:valueState="default"/>
+ <property xil_pn:name="Change Device Speed To" xil_pn:value="-3" xil_pn:valueState="default"/>
+ <property xil_pn:name="Change Device Speed To Post Trace" xil_pn:value="-3" xil_pn:valueState="default"/>
+ <property xil_pn:name="Combinatorial Logic Optimization" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Compile EDK Simulation Library" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Compile SIMPRIM (Timing) Simulation Library" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Compile UNISIM (Functional) Simulation Library" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Compile XilinxCoreLib (CORE Generator) Simulation Library" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Compile for HDL Debugging" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Configuration Clk (Configuration Pins)" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="Configuration Pin Done" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="Configuration Pin M0" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="Configuration Pin M1" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="Configuration Pin M2" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="Configuration Pin Program" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="Configuration Rate spartan6" xil_pn:value="2" xil_pn:valueState="default"/>
+ <property xil_pn:name="Correlate Output to Input Design" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Create ASCII Configuration File" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Create Binary Configuration File" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Create Bit File" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Create I/O Pads from Ports" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Create IEEE 1532 Configuration File spartan6" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Create Logic Allocation File" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Create Mask File" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Create ReadBack Data Files" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Cross Clock Analysis" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="DSP Utilization Ratio" xil_pn:value="100" xil_pn:valueState="default"/>
+ <property xil_pn:name="Delay Values To Be Read from SDF" xil_pn:value="Setup Time" xil_pn:valueState="default"/>
+ <property xil_pn:name="Device" xil_pn:value="xc6slx9" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="Device Family" xil_pn:value="Spartan6" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="Device Speed Grade/Select ABS Minimum" xil_pn:value="-3" xil_pn:valueState="default"/>
+ <property xil_pn:name="Disable Detailed Package Model Insertion" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Do Not Escape Signal and Instance Names in Netlist" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Done (Output Events)" xil_pn:value="Default (4)" xil_pn:valueState="default"/>
+ <property xil_pn:name="Drive Awake Pin During Suspend/Wake Sequence spartan6" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Drive Done Pin High" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable BitStream Compression" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable Cyclic Redundancy Checking (CRC) spartan6" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable Debugging of Serial Mode BitStream" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable External Master Clock spartan6" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable Internal Done Pipe" xil_pn:value="true" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="Enable Message Filtering" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable Multi-Pin Wake-Up Suspend Mode spartan6" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable Multi-Threading" xil_pn:value="Off" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable Multi-Threading par spartan6" xil_pn:value="Off" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable Outputs (Output Events)" xil_pn:value="Default (5)" xil_pn:valueState="default"/>
+ <property xil_pn:name="Enable Suspend/Wake Global Set/Reset spartan6" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Encrypt Bitstream spartan6" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Encrypt Key Select spartan6" xil_pn:value="BBRAM" xil_pn:valueState="default"/>
+ <property xil_pn:name="Equivalent Register Removal Map" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Equivalent Register Removal XST" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Essential Bits" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Evaluation Development Board" xil_pn:value="None Specified" xil_pn:valueState="default"/>
+ <property xil_pn:name="Exclude Compilation of Deprecated EDK Cores" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Exclude Compilation of EDK Sub-Libraries" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Extra Cost Tables Map" xil_pn:value="0" xil_pn:valueState="default"/>
+ <property xil_pn:name="Extra Effort (Highest PAR level only)" xil_pn:value="None" xil_pn:valueState="default"/>
+ <property xil_pn:name="FPGA Start-Up Clock" xil_pn:value="CCLK" xil_pn:valueState="default"/>
+ <property xil_pn:name="FSM Encoding Algorithm" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="FSM Style" xil_pn:value="LUT" xil_pn:valueState="default"/>
+ <property xil_pn:name="Filter Files From Compile Order" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Flatten Output Netlist" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Functional Model Target Language ArchWiz" xil_pn:value="Verilog" xil_pn:valueState="default"/>
+ <property xil_pn:name="Functional Model Target Language Coregen" xil_pn:value="Verilog" xil_pn:valueState="default"/>
+ <property xil_pn:name="Functional Model Target Language Schematic" xil_pn:value="Verilog" xil_pn:valueState="default"/>
+ <property xil_pn:name="GTS Cycle During Suspend/Wakeup Sequence spartan6" xil_pn:value="4" xil_pn:valueState="default"/>
+ <property xil_pn:name="GWE Cycle During Suspend/Wakeup Sequence spartan6" xil_pn:value="5" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Architecture Only (No Entity Declaration)" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Asynchronous Delay Report" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Clock Region Report" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Constraints Interaction Report" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Constraints Interaction Report Post Trace" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Datasheet Section" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Datasheet Section Post Trace" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Detailed MAP Report" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Multiple Hierarchical Netlist Files" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Post-Place &amp; Route Power Report" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Post-Place &amp; Route Simulation Model" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate RTL Schematic" xil_pn:value="Yes" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate SAIF File for Power Optimization/Estimation Par" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Testbench File" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Timegroups Section" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generate Timegroups Section Post Trace" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Generics, Parameters" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Global Optimization Goal" xil_pn:value="AllClockNets" xil_pn:valueState="default"/>
+ <property xil_pn:name="Global Optimization map spartan6" xil_pn:value="Off" xil_pn:valueState="default"/>
+ <property xil_pn:name="Global Set/Reset Port Name" xil_pn:value="GSR_PORT" xil_pn:valueState="default"/>
+ <property xil_pn:name="Global Tristate Port Name" xil_pn:value="GTS_PORT" xil_pn:valueState="default"/>
+ <property xil_pn:name="Hierarchy Separator" xil_pn:value="/" xil_pn:valueState="default"/>
+ <property xil_pn:name="ISim UUT Instance Name" xil_pn:value="UUT" xil_pn:valueState="default"/>
+ <property xil_pn:name="Ignore User Timing Constraints Map" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Ignore User Timing Constraints Par" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Implementation Top" xil_pn:value="Module|top" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="Implementation Top File" xil_pn:value="top.v" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="Implementation Top Instance Path" xil_pn:value="/top" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="Include 'uselib Directive in Verilog File" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Include SIMPRIM Models in Verilog File" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Include UNISIM Models in Verilog File" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Include sdf_annotate task in Verilog File" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Incremental Compilation" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Insert Buffers to Prevent Pulse Swallowing" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Instantiation Template Target Language Xps" xil_pn:value="Verilog" xil_pn:valueState="default"/>
+ <property xil_pn:name="JTAG Pin TCK" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="JTAG Pin TDI" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="JTAG Pin TDO" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="JTAG Pin TMS" xil_pn:value="Pull Up" xil_pn:valueState="default"/>
+ <property xil_pn:name="Keep Hierarchy" xil_pn:value="No" xil_pn:valueState="default"/>
+ <property xil_pn:name="LUT Combining Map" xil_pn:value="Off" xil_pn:valueState="default"/>
+ <property xil_pn:name="LUT Combining Xst" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="Language" xil_pn:value="VHDL" xil_pn:valueState="default"/>
+ <property xil_pn:name="Last Applied Goal" xil_pn:value="Balanced" xil_pn:valueState="default"/>
+ <property xil_pn:name="Last Applied Strategy" xil_pn:value="Xilinx Default (unlocked)" xil_pn:valueState="default"/>
+ <property xil_pn:name="Last Unlock Status" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Launch SDK after Export" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Library for Verilog Sources" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Load glbl" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Manual Implementation Compile Order" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Map Slice Logic into Unused Block RAMs" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Mask Pins for Multi-Pin Wake-Up Suspend Mode spartan6" xil_pn:value="0x00" xil_pn:valueState="default"/>
+ <property xil_pn:name="Max Fanout" xil_pn:value="100000" xil_pn:valueState="default"/>
+ <property xil_pn:name="Maximum Compression" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Maximum Number of Lines in Report" xil_pn:value="1000" xil_pn:valueState="default"/>
+ <property xil_pn:name="Maximum Signal Name Length" xil_pn:value="20" xil_pn:valueState="default"/>
+ <property xil_pn:name="Move First Flip-Flop Stage" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Move Last Flip-Flop Stage" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="MultiBoot: Insert IPROG CMD in the Bitfile spartan6" xil_pn:value="Enable" xil_pn:valueState="default"/>
+ <property xil_pn:name="MultiBoot: Next Configuration Mode spartan6" xil_pn:value="001" xil_pn:valueState="default"/>
+ <property xil_pn:name="MultiBoot: Starting Address for Golden Configuration spartan6" xil_pn:value="0x00000000" xil_pn:valueState="default"/>
+ <property xil_pn:name="MultiBoot: Starting Address for Next Configuration spartan6" xil_pn:value="0x00000000" xil_pn:valueState="default"/>
+ <property xil_pn:name="MultiBoot: Use New Mode for Next Configuration spartan6" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="MultiBoot: User-Defined Register for Failsafe Scheme spartan6" xil_pn:value="0x0000" xil_pn:valueState="default"/>
+ <property xil_pn:name="Netlist Hierarchy" xil_pn:value="As Optimized" xil_pn:valueState="default"/>
+ <property xil_pn:name="Netlist Translation Type" xil_pn:value="Timestamp" xil_pn:valueState="default"/>
+ <property xil_pn:name="Number of Clock Buffers" xil_pn:value="16" xil_pn:valueState="default"/>
+ <property xil_pn:name="Number of Paths in Error/Verbose Report" xil_pn:value="3" xil_pn:valueState="default"/>
+ <property xil_pn:name="Number of Paths in Error/Verbose Report Post Trace" xil_pn:value="3" xil_pn:valueState="default"/>
+ <property xil_pn:name="Optimization Effort spartan6" xil_pn:value="Normal" xil_pn:valueState="default"/>
+ <property xil_pn:name="Optimization Goal" xil_pn:value="Speed" xil_pn:valueState="default"/>
+ <property xil_pn:name="Optimize Instantiated Primitives" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Bitgen Command Line Options" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Bitgen Command Line Options spartan6" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Compiler Options" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Compiler Options Map" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Compiler Options Par" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Compiler Options Translate" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Compxlib Command Line Options" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Map Command Line Options" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other NETGEN Command Line Options" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Ngdbuild Command Line Options" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Place &amp; Route Command Line Options" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Simulator Commands Behavioral" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Simulator Commands Post-Map" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Simulator Commands Post-Route" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other Simulator Commands Post-Translate" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other XPWR Command Line Options" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Other XST Command Line Options" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Output Extended Identifiers" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Output File Name" xil_pn:value="top" xil_pn:valueState="default"/>
+ <property xil_pn:name="Overwrite Compiled Libraries" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Pack I/O Registers into IOBs" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="Pack I/O Registers/Latches into IOBs" xil_pn:value="Off" xil_pn:valueState="default"/>
+ <property xil_pn:name="Package" xil_pn:value="tqg144" xil_pn:valueState="default"/>
+ <property xil_pn:name="Perform Advanced Analysis" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Perform Advanced Analysis Post Trace" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Perform Timing-Driven Packing and Placement" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Place &amp; Route Effort Level (Overall)" xil_pn:value="High" xil_pn:valueState="default"/>
+ <property xil_pn:name="Place And Route Mode" xil_pn:value="Normal Place and Route" xil_pn:valueState="default"/>
+ <property xil_pn:name="Place MultiBoot Settings into Bitstream spartan6" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Placer Effort Level Map" xil_pn:value="High" xil_pn:valueState="default"/>
+ <property xil_pn:name="Placer Extra Effort Map" xil_pn:value="None" xil_pn:valueState="default"/>
+ <property xil_pn:name="Port to be used" xil_pn:value="Auto - default" xil_pn:valueState="default"/>
+ <property xil_pn:name="Post Map Simulation Model Name" xil_pn:value="top_map.v" xil_pn:valueState="default"/>
+ <property xil_pn:name="Post Place &amp; Route Simulation Model Name" xil_pn:value="top_timesim.v" xil_pn:valueState="default"/>
+ <property xil_pn:name="Post Synthesis Simulation Model Name" xil_pn:value="top_synthesis.v" xil_pn:valueState="default"/>
+ <property xil_pn:name="Post Translate Simulation Model Name" xil_pn:value="top_translate.v" xil_pn:valueState="default"/>
+ <property xil_pn:name="Power Reduction Map spartan6" xil_pn:value="Off" xil_pn:valueState="default"/>
+ <property xil_pn:name="Power Reduction Par" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Power Reduction Xst" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Preferred Language" xil_pn:value="Verilog" xil_pn:valueState="default"/>
+ <property xil_pn:name="Produce Verbose Report" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Project Description" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Property Specification in Project File" xil_pn:value="Store all values" xil_pn:valueState="default"/>
+ <property xil_pn:name="RAM Extraction" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="RAM Style" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="ROM Extraction" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="ROM Style" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="Read Cores" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Reduce Control Sets" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="Regenerate Core" xil_pn:value="Under Current Project Setting" xil_pn:valueState="default"/>
+ <property xil_pn:name="Register Balancing" xil_pn:value="No" xil_pn:valueState="default"/>
+ <property xil_pn:name="Register Duplication Map" xil_pn:value="Off" xil_pn:valueState="default"/>
+ <property xil_pn:name="Register Duplication Xst" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Register Ordering spartan6" xil_pn:value="4" xil_pn:valueState="default"/>
+ <property xil_pn:name="Release Write Enable (Output Events)" xil_pn:value="Default (6)" xil_pn:valueState="default"/>
+ <property xil_pn:name="Rename Design Instance in Testbench File to" xil_pn:value="UUT" xil_pn:valueState="default"/>
+ <property xil_pn:name="Rename Top Level Architecture To" xil_pn:value="Structure" xil_pn:valueState="default"/>
+ <property xil_pn:name="Rename Top Level Entity to" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Rename Top Level Module To" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Report Fastest Path(s) in Each Constraint" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Report Fastest Path(s) in Each Constraint Post Trace" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Report Paths by Endpoint" xil_pn:value="3" xil_pn:valueState="default"/>
+ <property xil_pn:name="Report Paths by Endpoint Post Trace" xil_pn:value="3" xil_pn:valueState="default"/>
+ <property xil_pn:name="Report Type" xil_pn:value="Verbose Report" xil_pn:valueState="default"/>
+ <property xil_pn:name="Report Type Post Trace" xil_pn:value="Verbose Report" xil_pn:valueState="default"/>
+ <property xil_pn:name="Report Unconstrained Paths" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Report Unconstrained Paths Post Trace" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Reset On Configuration Pulse Width" xil_pn:value="100" xil_pn:valueState="default"/>
+ <property xil_pn:name="Resource Sharing" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Retain Hierarchy" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Retry Configuration if CRC Error Occurs spartan6" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Revision Select" xil_pn:value="00" xil_pn:valueState="default"/>
+ <property xil_pn:name="Revision Select Tristate" xil_pn:value="Disable" xil_pn:valueState="default"/>
+ <property xil_pn:name="Run Design Rules Checker (DRC)" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Run for Specified Time" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Run for Specified Time Map" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Run for Specified Time Par" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Run for Specified Time Translate" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Safe Implementation" xil_pn:value="No" xil_pn:valueState="default"/>
+ <property xil_pn:name="Security" xil_pn:value="Enable Readback and Reconfiguration" xil_pn:valueState="default"/>
+ <property xil_pn:name="Selected Simulation Root Source Node Behavioral" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Selected Simulation Root Source Node Post-Map" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Selected Simulation Root Source Node Post-Route" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Selected Simulation Root Source Node Post-Translate" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Selected Simulation Source Node" xil_pn:value="UUT" xil_pn:valueState="default"/>
+ <property xil_pn:name="Set SPI Configuration Bus Width spartan6" xil_pn:value="1" xil_pn:valueState="default"/>
+ <property xil_pn:name="Setup External Master Clock Division spartan6" xil_pn:value="1" xil_pn:valueState="default"/>
+ <property xil_pn:name="Shift Register Extraction" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Shift Register Minimum Size spartan6" xil_pn:value="2" xil_pn:valueState="default"/>
+ <property xil_pn:name="Show All Models" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Simulation Model Target" xil_pn:value="Verilog" xil_pn:valueState="default"/>
+ <property xil_pn:name="Simulation Run Time ISim" xil_pn:value="1000 ns" xil_pn:valueState="default"/>
+ <property xil_pn:name="Simulation Run Time Map" xil_pn:value="1000 ns" xil_pn:valueState="default"/>
+ <property xil_pn:name="Simulation Run Time Par" xil_pn:value="1000 ns" xil_pn:valueState="default"/>
+ <property xil_pn:name="Simulation Run Time Translate" xil_pn:value="1000 ns" xil_pn:valueState="default"/>
+ <property xil_pn:name="Simulator" xil_pn:value="ISim (VHDL/Verilog)" xil_pn:valueState="default"/>
+ <property xil_pn:name="Slice Utilization Ratio" xil_pn:value="100" xil_pn:valueState="default"/>
+ <property xil_pn:name="Specify 'define Macro Name and Value" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Specify Top Level Instance Names Behavioral" xil_pn:value="Default" xil_pn:valueState="default"/>
+ <property xil_pn:name="Specify Top Level Instance Names Post-Map" xil_pn:value="Default" xil_pn:valueState="default"/>
+ <property xil_pn:name="Specify Top Level Instance Names Post-Route" xil_pn:value="Default" xil_pn:valueState="default"/>
+ <property xil_pn:name="Specify Top Level Instance Names Post-Translate" xil_pn:value="Default" xil_pn:valueState="default"/>
+ <property xil_pn:name="Speed Grade" xil_pn:value="-3" xil_pn:valueState="default"/>
+ <property xil_pn:name="Starting Placer Cost Table (1-100) Map spartan6" xil_pn:value="1" xil_pn:valueState="default"/>
+ <property xil_pn:name="Synthesis Tool" xil_pn:value="XST (VHDL/Verilog)" xil_pn:valueState="default"/>
+ <property xil_pn:name="Target Simulator" xil_pn:value="Please Specify" xil_pn:valueState="default"/>
+ <property xil_pn:name="Target UCF File Name" xil_pn:value="top.ucf" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="Timing Mode Map" xil_pn:value="Performance Evaluation" xil_pn:valueState="default"/>
+ <property xil_pn:name="Timing Mode Par" xil_pn:value="Performance Evaluation" xil_pn:valueState="default"/>
+ <property xil_pn:name="Top-Level Module Name in Output Netlist" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Top-Level Source Type" xil_pn:value="HDL" xil_pn:valueState="default"/>
+ <property xil_pn:name="Trim Unconnected Signals" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Tristate On Configuration Pulse Width" xil_pn:value="0" xil_pn:valueState="default"/>
+ <property xil_pn:name="Unused IOB Pins" xil_pn:value="Pull Down" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use 64-bit PlanAhead on 64-bit Systems" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Clock Enable" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Project File Behavioral" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Project File Post-Map" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Project File Post-Route" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Project File Post-Translate" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Simulation Command File Behavioral" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Simulation Command File Map" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Simulation Command File Par" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Simulation Command File Translate" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Waveform Configuration File Behav" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Waveform Configuration File Map" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Waveform Configuration File Par" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Custom Waveform Configuration File Translate" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use DSP Block spartan6" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use LOC Constraints" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use RLOC Constraints" xil_pn:value="Yes" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Smart Guide" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Synchronous Reset" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Synchronous Set" xil_pn:value="Auto" xil_pn:valueState="default"/>
+ <property xil_pn:name="Use Synthesis Constraints File" xil_pn:value="true" xil_pn:valueState="default"/>
+ <property xil_pn:name="User Browsed Strategy Files" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="UserID Code (8 Digit Hexadecimal)" xil_pn:value="0xFFFFFFFF" xil_pn:valueState="default"/>
+ <property xil_pn:name="VCCAUX Voltage Level spartan6" xil_pn:value="2.5V" xil_pn:valueState="default"/>
+ <property xil_pn:name="VHDL Source Analysis Standard" xil_pn:value="VHDL-93" xil_pn:valueState="default"/>
+ <property xil_pn:name="Value Range Check" xil_pn:value="false" xil_pn:valueState="default"/>
+ <property xil_pn:name="Verilog Macros" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="Wait for DCM and PLL Lock (Output Events) spartan6" xil_pn:value="Default (NoWait)" xil_pn:valueState="default"/>
+ <property xil_pn:name="Wakeup Clock spartan6" xil_pn:value="Startup Clock" xil_pn:valueState="default"/>
+ <property xil_pn:name="Watchdog Timer Value spartan6" xil_pn:value="0xFFFF" xil_pn:valueState="default"/>
+ <property xil_pn:name="Working Directory" xil_pn:value="." xil_pn:valueState="non-default"/>
+ <property xil_pn:name="Write Timing Constraints" xil_pn:value="false" xil_pn:valueState="default"/>
+ <!-- -->
+ <!-- The following properties are for internal use only. These should not be modified.-->
+ <!-- -->
+ <property xil_pn:name="PROP_BehavioralSimTop" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="PROP_DesignName" xil_pn:value="ec-prom-dump" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="PROP_DevFamilyPMName" xil_pn:value="spartan6" xil_pn:valueState="default"/>
+ <property xil_pn:name="PROP_FPGAConfiguration" xil_pn:value="FPGAConfiguration" xil_pn:valueState="default"/>
+ <property xil_pn:name="PROP_PostMapSimTop" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="PROP_PostParSimTop" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="PROP_PostSynthSimTop" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="PROP_PostXlateSimTop" xil_pn:value="" xil_pn:valueState="default"/>
+ <property xil_pn:name="PROP_PreSynthesis" xil_pn:value="PreSynthesis" xil_pn:valueState="default"/>
+ <property xil_pn:name="PROP_intProjectCreationTimestamp" xil_pn:value="2014-11-15T18:53:09" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="PROP_intWbtProjectID" xil_pn:value="2C461296A6AEC0F3354D5114A64A9BAC" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="PROP_intWorkingDirLocWRTProjDir" xil_pn:value="Same" xil_pn:valueState="non-default"/>
+ <property xil_pn:name="PROP_intWorkingDirUsed" xil_pn:value="No" xil_pn:valueState="non-default"/>
+ </properties>
+
+ <bindings/>
+
+ <libraries/>
+
+ <autoManagedFiles>
+ <!-- The following files are identified by `include statements in verilog -->
+ <!-- source files and are automatically managed by Project Navigator. -->
+ <!-- -->
+ <!-- Do not hand-edit this section, as it will be overwritten when the -->
+ <!-- project is analyzed based on files automatically identified as -->
+ <!-- include files. -->
+ </autoManagedFiles>
+
+</project>
diff --git a/top.ucf b/top.ucf
new file mode 100644
index 0000000..0238866
--- /dev/null
+++ b/top.ucf
@@ -0,0 +1,35 @@
+
+# PlanAhead Generated physical constraints
+
+NET "address[0]" LOC = P123;
+NET "address[1]" LOC = P121;
+NET "address[2]" LOC = P120;
+NET "address[3]" LOC = P119;
+NET "address[4]" LOC = P118;
+NET "address[5]" LOC = P117;
+NET "address[6]" LOC = P116;
+NET "address[7]" LOC = P115;
+NET "address[8]" LOC = P114;
+NET "address[9]" LOC = P112;
+NET "address[10]" LOC = P111;
+NET "address[11]" LOC = P105;
+NET "address[12]" LOC = P104;
+NET "address[13]" LOC = P102;
+NET "address[14]" LOC = P101;
+NET "data[0]" LOC = P80;
+NET "data[1]" LOC = P79;
+NET "data[2]" LOC = P78;
+NET "data[3]" LOC = P75;
+NET "data[4]" LOC = P74;
+NET "data[5]" LOC = P67;
+NET "data[6]" LOC = P66;
+NET "data[7]" LOC = P59;
+NET "oe" LOC = P87;
+NET "ce" LOC = P85;
+NET "uart_signal_tx" LOC = P83;
+NET "uart_signal_rx" LOC = P84;
+NET "xout" LOC = P82;
+NET "sys_clk" LOC = P55;
+NET "sys_rst" LOC = P124;
+NET "led0" LOC = P127;
+NET "debug" LOC = P97; \ No newline at end of file
diff --git a/top.v b/top.v
new file mode 100644
index 0000000..975ab6f
--- /dev/null
+++ b/top.v
@@ -0,0 +1,147 @@
+// Copyright (c) 2014 Sergiusz 'q3k' Bazański <sergiusz@bazanski.pl>
+// Released under the 2-clause BSD license - see the COPYING file
+
+`timescale 1ns / 1ps
+
+module top(
+ // Board-specific signals
+ input sys_clk,
+ input sys_rst,
+
+ // To EC
+ input [7:0] data,
+ output reg [14:0] address,
+ output reg oe,
+ output reg ce,
+ output xout,
+
+ // UART signals for control
+ output uart_signal_tx,
+ input uart_signal_rx,
+
+ // Debug signals
+ output led0,
+ output debug
+ );
+
+// FSM states
+`define STATE_IDLE 4'b0000
+`define STATE_ASSERT_ADDRESS 4'b0001
+`define STATE_READ_DATA 4'b0010
+`define STATE_OUTPUT 4'b0011
+`define STATE_OUTPUT_WAIT 4'b0100
+// State of our FSM
+reg [3:0] state;
+assign led0 = state != 0;
+
+// Clocks 'n stuff
+// 'Main' clock
+reg [11:0] clock_counter;
+wire clock = clock_counter[11];
+// UART clock
+reg [7:0] uart_clock_counter;
+reg uart_clock;
+assign debug = uart_clock;
+// EC clock
+reg [2:0] ec_clock_counter;
+reg ec_clock;
+assign xout = ec_clock;
+
+// UART
+reg uart_latch;
+wire uart_receied;
+reg uart_received_clear;
+wire [7:0] uart_rx;
+wire uart_transmitted;
+uart_controller uart(
+ .tx_data_in(data),
+ .tx_data_latch(uart_latch),
+ .clock(uart_clock),
+ .reset(!sys_rst),
+ .tx_transmitted(uart_transmitted),
+ .tx_signal(uart_signal_tx),
+ .rx_present(uart_received),
+ .rx_present_clear(uart_received_clear),
+ .rx_data(uart_rx),
+ .rx_signal(uart_signal_rx));
+
+// Internal reader registers
+reg [14:0] read_address;
+reg [8:0] bytes_left;
+
+// Clocks
+always @(posedge sys_clk) begin
+ clock_counter <= clock_counter + 1;
+ if (uart_clock_counter >= 216) begin
+ uart_clock <= !uart_clock;
+ uart_clock_counter <= 0;
+ end else begin
+ uart_clock_counter <= uart_clock_counter + 1;
+ end
+ if (ec_clock_counter >= 4) begin
+ ec_clock <= !ec_clock;
+ ec_clock_counter <= 0;
+ end else begin
+ ec_clock_counter <= ec_clock_counter + 1;
+ end
+
+ //clock_counter <= 0;
+ //uart_clock_counter <= 0;
+ //uart_clock <= 0;
+ //ec_clock_counter <= 0;
+ //ec_clock <= 0;
+end
+
+// State machine
+always @(posedge clock) begin
+ if (!sys_rst) begin
+ // reset condition
+ state <= `STATE_IDLE;
+ uart_received_clear <= 0;
+ uart_latch <= 0;
+ read_address <= 0;
+ oe <= 1;
+ ce <= 1;
+ end else begin
+ case (state)
+ `STATE_IDLE: begin
+ if (uart_received) begin
+ uart_received_clear <= 1;
+ read_address <= (uart_rx * 256) & 15'h7FFF;
+ state <= `STATE_ASSERT_ADDRESS;
+ bytes_left <= 9'h100;
+ end
+ end
+ `STATE_ASSERT_ADDRESS: begin
+ oe <= 0;
+ ce <= 0;
+ address <= read_address;
+ state <= `STATE_READ_DATA;
+ end
+ `STATE_READ_DATA: begin
+ state <= `STATE_OUTPUT;
+ end
+ `STATE_OUTPUT: begin
+ if (uart_transmitted) begin
+ uart_latch <= 1;
+ state <= `STATE_OUTPUT_WAIT;
+ end
+ end
+ `STATE_OUTPUT_WAIT: begin
+ if (!uart_transmitted) begin
+ bytes_left <= bytes_left - 1;
+ read_address <= read_address + 1;
+ uart_latch <= 0;
+ if (bytes_left - 1 == 0) begin
+ uart_received_clear <= 0;
+ state <= `STATE_IDLE;
+ end else begin
+ state <= `STATE_ASSERT_ADDRESS;
+ end
+ end
+ end
+ endcase
+ end
+end
+
+endmodule
diff --git a/uart.v b/uart.v
new file mode 100644
index 0000000..d092f19
--- /dev/null
+++ b/uart.v
@@ -0,0 +1,170 @@
+// Copyright (c) 2014 Sergiusz 'q3k' Bazański <sergiusz@bazanski.pl>
+// Released under the 2-clause BSD license - see the COPYING file
+
+`timescale 1ns / 1ps
+
+/// This is not the prettiest UART you've seen...
+
+module uart_controller(
+ // Data input
+ input [7:0] tx_data_in,
+ // Data input latch
+ input tx_data_latch,
+
+ // baud rate clock
+ input clock,
+
+ // reset line
+ input reset,
+
+ // goes 1 when the UART finished transmitting
+ output reg tx_transmitted,
+ // the actual UART transmitter output
+ output reg tx_signal,
+
+ output reg rx_present,
+ input rx_present_clear,
+ output reg [7:0] rx_data,
+
+ input rx_signal
+ );
+
+ // Internal TX data (latched from tx_data_in)
+ reg [7:0] tx_data;
+
+ reg [3:0] tx_state;
+ reg [3:0] rx_state;
+ `define IDLE 0
+ `define START 1
+ `define BIT0 2
+ `define BIT1 3
+ `define BIT2 4
+ `define BIT3 5
+ `define BIT4 6
+ `define BIT5 7
+ `define BIT6 8
+ `define BIT7 9
+ `define STOP 10
+
+ /// Receiver
+ always @(posedge clock)
+ begin
+ if (reset) begin
+ rx_state <= `IDLE;
+ rx_present <= 0;
+ rx_data <= 0;
+ end else begin
+ if (rx_present_clear)
+ rx_present <= 0;
+ case (rx_state)
+ `IDLE: begin
+ if (!rx_signal) begin
+ // We received a start bit
+ rx_state <= `BIT0;
+ rx_present <= 0;
+ end
+ end
+ `BIT0: begin
+ rx_data[0] <= rx_signal;
+ rx_state <= `BIT1;
+ end
+ `BIT1: begin
+ rx_data[1] <= rx_signal;
+ rx_state <= `BIT2;
+ end
+ `BIT2: begin
+ rx_data[2] <= rx_signal;
+ rx_state <= `BIT3;
+ end
+ `BIT3: begin
+ rx_data[3] <= rx_signal;
+ rx_state <= `BIT4;
+ end
+ `BIT4: begin
+ rx_data[4] <= rx_signal;
+ rx_state <= `BIT5;
+ end
+ `BIT5: begin
+ rx_data[5] <= rx_signal;
+ rx_state <= `BIT6;
+ end
+ `BIT6: begin
+ rx_data[6] <= rx_signal;
+ rx_state <= `BIT7;
+ end
+ `BIT7: begin
+ rx_data[7] <= rx_signal;
+ rx_state <= `STOP;
+ end
+ `STOP: begin
+ rx_present <= 1;
+ rx_state <= `IDLE;
+ end
+ endcase
+ end
+ end
+
+ /// Transmitter
+ always @(posedge clock)
+ begin
+ if (reset) begin
+ tx_state <= `IDLE;
+ tx_signal <= 1;
+ tx_data <= 0;
+ tx_transmitted <= 1;
+ end else begin
+ case (tx_state)
+ `IDLE: begin
+ if (tx_data_latch)
+ begin
+ tx_data <= tx_data_in;
+ tx_state <= `START;
+ tx_transmitted <= 0;
+ end
+ end
+ `START: begin
+ tx_signal <= 0;
+ tx_state <= `BIT0;
+ end
+ `BIT0: begin
+ tx_signal <= tx_data[0];
+ tx_state <= `BIT1;
+ end
+ `BIT1: begin
+ tx_signal <= tx_data[1];
+ tx_state <= `BIT2;
+ end
+ `BIT2: begin
+ tx_signal <= tx_data[2];
+ tx_state <= `BIT3;
+ end
+ `BIT3: begin
+ tx_signal <= tx_data[3];
+ tx_state <= `BIT4;
+ end
+ `BIT4: begin
+ tx_signal <= tx_data[4];
+ tx_state <= `BIT5;
+ end
+ `BIT5: begin
+ tx_signal <= tx_data[5];
+ tx_state <= `BIT6;
+ end
+ `BIT6: begin
+ tx_signal <= tx_data[6];
+ tx_state <= `BIT7;
+ end
+ `BIT7: begin
+ tx_signal <= tx_data[7];
+ tx_state <= `STOP;
+ end
+ `STOP: begin
+ tx_signal <= 1;
+ tx_state <= `IDLE;
+ tx_transmitted <= 1;
+ end
+ endcase
+ end
+ end
+
+endmodule