Analysis & Synthesis report for excute Sun Aug 04 10:40:14 2024 Quartus II 64-Bit Version 13.1.0 Build 162 10/23/2013 SJ Full Version --------------------- ; Table of Contents ; --------------------- 1. Legal Notice 2. Analysis & Synthesis Summary 3. Analysis & Synthesis Settings 4. Parallel Compilation 5. Analysis & Synthesis Source Files Read 6. Analysis & Synthesis Resource Usage Summary 7. Analysis & Synthesis Resource Utilization by Entity 8. State Machine - |uart_top|uart_rx:uart_rx_c0|state 9. State Machine - |uart_top|uart_tx:uart_tx_c0|state 10. Registers Removed During Synthesis 11. Removed Registers Triggering Further Register Optimizations 12. General Register Statistics 13. Multiplexer Restructuring Statistics (Restructuring Performed) 14. Parameter Settings for User Entity Instance: div_clk:uart_div_c0 15. Parameter Settings for User Entity Instance: uart_tx:uart_tx_c0 16. Parameter Settings for User Entity Instance: uart_rx:uart_rx_c0 17. Port Connectivity Checks: "uart_rx:uart_rx_c0" 18. Port Connectivity Checks: "uart_tx:uart_tx_c0" 19. Elapsed Time Per Partition 20. Analysis & Synthesis Messages ---------------- ; Legal Notice ; ---------------- Copyright (C) 1991-2013 Altera Corporation Your use of Altera Corporation's design tools, logic functions and other software and tools, and its AMPP partner logic functions, and any output files from any of the foregoing (including device programming or simulation files), and any associated documentation or information are expressly subject to the terms and conditions of the Altera Program License Subscription Agreement, Altera MegaCore Function License Agreement, or other applicable license agreement, including, without limitation, that your use is for the sole purpose of programming logic devices manufactured by Altera and sold by Altera or its authorized distributors. Please refer to the applicable agreement for further details. +----------------------------------------------------------------------------------+ ; Analysis & Synthesis Summary ; +------------------------------------+---------------------------------------------+ ; Analysis & Synthesis Status ; Successful - Sun Aug 04 10:40:14 2024 ; ; Quartus II 64-Bit Version ; 13.1.0 Build 162 10/23/2013 SJ Full Version ; ; Revision Name ; excute ; ; Top-level Entity Name ; uart_top ; ; Family ; Cyclone IV E ; ; Total logic elements ; 45 ; ; Total combinational functions ; 37 ; ; Dedicated logic registers ; 30 ; ; Total registers ; 30 ; ; Total pins ; 15 ; ; Total virtual pins ; 0 ; ; Total memory bits ; 0 ; ; Embedded Multiplier 9-bit elements ; 0 ; ; Total PLLs ; 0 ; +------------------------------------+---------------------------------------------+ +----------------------------------------------------------------------------------------------------------------------+ ; Analysis & Synthesis Settings ; +----------------------------------------------------------------------------+--------------------+--------------------+ ; Option ; Setting ; Default Value ; +----------------------------------------------------------------------------+--------------------+--------------------+ ; Device ; EP4CE10F17C8 ; ; ; Top-level entity name ; uart_top ; excute ; ; Family name ; Cyclone IV E ; Cyclone IV GX ; ; Use smart compilation ; Off ; Off ; ; Enable parallel Assembler and TimeQuest Timing Analyzer during compilation ; On ; On ; ; Enable compact report table ; Off ; Off ; ; Restructure Multiplexers ; Auto ; Auto ; ; Create Debugging Nodes for IP Cores ; Off ; Off ; ; Preserve fewer node names ; On ; On ; ; Disable OpenCore Plus hardware evaluation ; Off ; Off ; ; Verilog Version ; Verilog_2001 ; Verilog_2001 ; ; VHDL Version ; VHDL_1993 ; VHDL_1993 ; ; State Machine Processing ; Auto ; Auto ; ; Safe State Machine ; Off ; Off ; ; Extract Verilog State Machines ; On ; On ; ; Extract VHDL State Machines ; On ; On ; ; Ignore Verilog initial constructs ; Off ; Off ; ; Iteration limit for constant Verilog loops ; 5000 ; 5000 ; ; Iteration limit for non-constant Verilog loops ; 250 ; 250 ; ; Add Pass-Through Logic to Inferred RAMs ; On ; On ; ; Infer RAMs from Raw Logic ; On ; On ; ; Parallel Synthesis ; On ; On ; ; DSP Block Balancing ; Auto ; Auto ; ; NOT Gate Push-Back ; On ; On ; ; Power-Up Don't Care ; On ; On ; ; Remove Redundant Logic Cells ; Off ; Off ; ; Remove Duplicate Registers ; On ; On ; ; Ignore CARRY Buffers ; Off ; Off ; ; Ignore CASCADE Buffers ; Off ; Off ; ; Ignore GLOBAL Buffers ; Off ; Off ; ; Ignore ROW GLOBAL Buffers ; Off ; Off ; ; Ignore LCELL Buffers ; Off ; Off ; ; Ignore SOFT Buffers ; On ; On ; ; Limit AHDL Integers to 32 Bits ; Off ; Off ; ; Optimization Technique ; Balanced ; Balanced ; ; Carry Chain Length ; 70 ; 70 ; ; Auto Carry Chains ; On ; On ; ; Auto Open-Drain Pins ; On ; On ; ; Perform WYSIWYG Primitive Resynthesis ; Off ; Off ; ; Auto ROM Replacement ; On ; On ; ; Auto RAM Replacement ; On ; On ; ; Auto DSP Block Replacement ; On ; On ; ; Auto Shift Register Replacement ; Auto ; Auto ; ; Allow Shift Register Merging across Hierarchies ; Auto ; Auto ; ; Auto Clock Enable Replacement ; On ; On ; ; Strict RAM Replacement ; Off ; Off ; ; Allow Synchronous Control Signals ; On ; On ; ; Force Use of Synchronous Clear Signals ; Off ; Off ; ; Auto RAM Block Balancing ; On ; On ; ; Auto RAM to Logic Cell Conversion ; Off ; Off ; ; Auto Resource Sharing ; Off ; Off ; ; Allow Any RAM Size For Recognition ; Off ; Off ; ; Allow Any ROM Size For Recognition ; Off ; Off ; ; Allow Any Shift Register Size For Recognition ; Off ; Off ; ; Use LogicLock Constraints during Resource Balancing ; On ; On ; ; Ignore translate_off and synthesis_off directives ; Off ; Off ; ; Timing-Driven Synthesis ; On ; On ; ; Report Parameter Settings ; On ; On ; ; Report Source Assignments ; On ; On ; ; Report Connectivity Checks ; On ; On ; ; Ignore Maximum Fan-Out Assignments ; Off ; Off ; ; Synchronization Register Chain Length ; 2 ; 2 ; ; PowerPlay Power Optimization ; Normal compilation ; Normal compilation ; ; HDL message level ; Level2 ; Level2 ; ; Suppress Register Optimization Related Messages ; Off ; Off ; ; Number of Removed Registers Reported in Synthesis Report ; 5000 ; 5000 ; ; Number of Swept Nodes Reported in Synthesis Report ; 5000 ; 5000 ; ; Number of Inverted Registers Reported in Synthesis Report ; 100 ; 100 ; ; Clock MUX Protection ; On ; On ; ; Auto Gated Clock Conversion ; Off ; Off ; ; Block Design Naming ; Auto ; Auto ; ; SDC constraint protection ; Off ; Off ; ; Synthesis Effort ; Auto ; Auto ; ; Shift Register Replacement - Allow Asynchronous Clear Signal ; On ; On ; ; Pre-Mapping Resynthesis Optimization ; Off ; Off ; ; Analysis & Synthesis Message Level ; Medium ; Medium ; ; Disable Register Merging Across Hierarchies ; Auto ; Auto ; ; Resource Aware Inference For Block RAM ; On ; On ; ; Synthesis Seed ; 1 ; 1 ; +----------------------------------------------------------------------------+--------------------+--------------------+ +------------------------------------------+ ; Parallel Compilation ; +----------------------------+-------------+ ; Processors ; Number ; +----------------------------+-------------+ ; Number detected on machine ; 12 ; ; Maximum allowed ; 12 ; ; ; ; ; Average used ; 1.00 ; ; Maximum used ; 1 ; ; ; ; ; Usage by Processor ; % Time Used ; ; Processor 1 ; 100.0% ; ; Processors 2-12 ; 0.0% ; +----------------------------+-------------+ +--------------------------------------------------------------------------------------------------------------------------+ ; Analysis & Synthesis Source Files Read ; +----------------------------------+-----------------+------------------------+----------------------------------+---------+ ; File Name with User-Entered Path ; Used in Netlist ; File Type ; File Name with Absolute Path ; Library ; +----------------------------------+-----------------+------------------------+----------------------------------+---------+ ; ../uart_rx.v ; yes ; User Verilog HDL File ; E:/FPGA/FPGA_lib/uart/uart_rx.v ; ; ; ../div_clk.v ; yes ; User Verilog HDL File ; E:/FPGA/FPGA_lib/uart/div_clk.v ; ; ; ../uart_tx.v ; yes ; User Verilog HDL File ; E:/FPGA/FPGA_lib/uart/uart_tx.v ; ; ; ../uart_top.v ; yes ; User Verilog HDL File ; E:/FPGA/FPGA_lib/uart/uart_top.v ; ; +----------------------------------+-----------------+------------------------+----------------------------------+---------+ +-----------------------------------------------------------+ ; Analysis & Synthesis Resource Usage Summary ; +---------------------------------------------+-------------+ ; Resource ; Usage ; +---------------------------------------------+-------------+ ; Estimated Total logic elements ; 45 ; ; ; ; ; Total combinational functions ; 37 ; ; Logic element usage by number of LUT inputs ; ; ; -- 4 input functions ; 26 ; ; -- 3 input functions ; 3 ; ; -- <=2 input functions ; 8 ; ; ; ; ; Logic elements by mode ; ; ; -- normal mode ; 32 ; ; -- arithmetic mode ; 5 ; ; ; ; ; Total registers ; 30 ; ; -- Dedicated logic registers ; 30 ; ; -- I/O registers ; 0 ; ; ; ; ; I/O pins ; 15 ; ; Embedded Multiplier 9-bit elements ; 0 ; ; Maximum fan-out node ; rst_n~input ; ; Maximum fan-out ; 30 ; ; Total fan-out ; 251 ; ; Average fan-out ; 2.59 ; +---------------------------------------------+-------------+ +---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ ; Analysis & Synthesis Resource Utilization by Entity ; +----------------------------+-------------------+--------------+-------------+--------------+---------+-----------+------+--------------+-------------------------------+--------------+ ; Compilation Hierarchy Node ; LC Combinationals ; LC Registers ; Memory Bits ; DSP Elements ; DSP 9x9 ; DSP 18x18 ; Pins ; Virtual Pins ; Full Hierarchy Name ; Library Name ; +----------------------------+-------------------+--------------+-------------+--------------+---------+-----------+------+--------------+-------------------------------+--------------+ ; |uart_top ; 37 (0) ; 30 (0) ; 0 ; 0 ; 0 ; 0 ; 15 ; 0 ; |uart_top ; work ; ; |div_clk:uart_div_c0| ; 11 (11) ; 7 (7) ; 0 ; 0 ; 0 ; 0 ; 0 ; 0 ; |uart_top|div_clk:uart_div_c0 ; work ; ; |uart_rx:uart_rx_c0| ; 26 (26) ; 23 (23) ; 0 ; 0 ; 0 ; 0 ; 0 ; 0 ; |uart_top|uart_rx:uart_rx_c0 ; work ; +----------------------------+-------------------+--------------+-------------+--------------+---------+-----------+------+--------------+-------------------------------+--------------+ Note: For table entries with two numbers listed, the numbers in parentheses indicate the number of resources of the given type used by the specific entity alone. The numbers listed outside of parentheses indicate the total resources of the given type used by the specific entity and all of its sub-entities in the hierarchy. Encoding Type: One-Hot +----------------------------------------------------+ ; State Machine - |uart_top|uart_rx:uart_rx_c0|state ; +------------+------------+------------+-------------+ ; Name ; state.STOP ; state.DATA ; state.IDLE ; +------------+------------+------------+-------------+ ; state.IDLE ; 0 ; 0 ; 0 ; ; state.STOP ; 1 ; 0 ; 1 ; ; state.DATA ; 0 ; 1 ; 1 ; +------------+------------+------------+-------------+ Encoding Type: One-Hot +------------------------------------------------------------------+ ; State Machine - |uart_top|uart_tx:uart_tx_c0|state ; +----------------+---------------+----------------+----------------+ ; Name ; state.STA_OFF ; state.STA_DATA ; state.STA_IDLE ; +----------------+---------------+----------------+----------------+ ; state.STA_OFF ; 0 ; 0 ; 0 ; ; state.STA_IDLE ; 1 ; 0 ; 1 ; ; state.STA_DATA ; 1 ; 1 ; 0 ; +----------------+---------------+----------------+----------------+ +--------------------------------------------------------------------------------+ ; Registers Removed During Synthesis ; +---------------------------------------+----------------------------------------+ ; Register name ; Reason for Removal ; +---------------------------------------+----------------------------------------+ ; uart_tx:uart_tx_c0|state.STA_OFF ; Lost fanout ; ; uart_rx:uart_rx_c0|state.STOP ; Stuck at GND due to stuck port data_in ; ; uart_tx:uart_tx_c0|state.STA_DATA ; Stuck at GND due to stuck port data_in ; ; uart_tx:uart_tx_c0|tx_out ; Stuck at VCC due to stuck port data_in ; ; uart_tx:uart_tx_c0|cnt[0..3] ; Stuck at GND due to stuck port data_in ; ; Total Number of Removed Registers = 8 ; ; +---------------------------------------+----------------------------------------+ +--------------------------------------------------------------------------------------------------------+ ; Removed Registers Triggering Further Register Optimizations ; +-----------------------------------+---------------------------+----------------------------------------+ ; Register name ; Reason for Removal ; Registers Removed due to This Register ; +-----------------------------------+---------------------------+----------------------------------------+ ; uart_tx:uart_tx_c0|state.STA_DATA ; Stuck at GND ; uart_tx:uart_tx_c0|tx_out ; ; ; due to stuck port data_in ; ; +-----------------------------------+---------------------------+----------------------------------------+ +------------------------------------------------------+ ; General Register Statistics ; +----------------------------------------------+-------+ ; Statistic ; Value ; +----------------------------------------------+-------+ ; Total registers ; 30 ; ; Number of registers using Synchronous Clear ; 0 ; ; Number of registers using Synchronous Load ; 0 ; ; Number of registers using Asynchronous Clear ; 30 ; ; Number of registers using Asynchronous Load ; 0 ; ; Number of registers using Clock Enable ; 8 ; ; Number of registers using Preset ; 0 ; +----------------------------------------------+-------+ +---------------------------------------------------------------------------------------------------------------------------------------------------+ ; Multiplexer Restructuring Statistics (Restructuring Performed) ; +--------------------+-----------+---------------+----------------------+------------------------+------------+-------------------------------------+ ; Multiplexer Inputs ; Bus Width ; Baseline Area ; Area if Restructured ; Saving if Restructured ; Registered ; Example Multiplexer Output ; +--------------------+-----------+---------------+----------------------+------------------------+------------+-------------------------------------+ ; 4:1 ; 4 bits ; 8 LEs ; 8 LEs ; 0 LEs ; Yes ; |uart_top|uart_tx:uart_tx_c0|cnt[0] ; +--------------------+-----------+---------------+----------------------+------------------------+------------+-------------------------------------+ +------------------------------------------------------------------+ ; Parameter Settings for User Entity Instance: div_clk:uart_div_c0 ; +----------------+--------+----------------------------------------+ ; Parameter Name ; Value ; Type ; +----------------+--------+----------------------------------------+ ; DIV ; 110010 ; Unsigned Binary ; ; COUNT_WITH ; 6 ; Signed Integer ; +----------------+--------+----------------------------------------+ Note: In order to hide this table in the UI and the text report file, please set the "Show Parameter Settings in Synthesis Report" option in "Analysis and Synthesis Settings -> More Settings" to "Off". +-----------------------------------------------------------------+ ; Parameter Settings for User Entity Instance: uart_tx:uart_tx_c0 ; +----------------+-------+----------------------------------------+ ; Parameter Name ; Value ; Type ; +----------------+-------+----------------------------------------+ ; STA_OFF ; 00 ; Unsigned Binary ; ; STA_IDLE ; 01 ; Unsigned Binary ; ; STA_DATA ; 10 ; Unsigned Binary ; +----------------+-------+----------------------------------------+ Note: In order to hide this table in the UI and the text report file, please set the "Show Parameter Settings in Synthesis Report" option in "Analysis and Synthesis Settings -> More Settings" to "Off". +-----------------------------------------------------------------+ ; Parameter Settings for User Entity Instance: uart_rx:uart_rx_c0 ; +----------------+-------+----------------------------------------+ ; Parameter Name ; Value ; Type ; +----------------+-------+----------------------------------------+ ; STOP ; 00 ; Unsigned Binary ; ; IDLE ; 01 ; Unsigned Binary ; ; DATA ; 10 ; Unsigned Binary ; +----------------+-------+----------------------------------------+ Note: In order to hide this table in the UI and the text report file, please set the "Show Parameter Settings in Synthesis Report" option in "Analysis and Synthesis Settings -> More Settings" to "Off". +------------------------------------------------+ ; Port Connectivity Checks: "uart_rx:uart_rx_c0" ; +-------+-------+----------+---------------------+ ; Port ; Type ; Severity ; Details ; +-------+-------+----------+---------------------+ ; rx_en ; Input ; Info ; Stuck at VCC ; +-------+-------+----------+---------------------+ +------------------------------------------------+ ; Port Connectivity Checks: "uart_tx:uart_tx_c0" ; +-------+-------+----------+---------------------+ ; Port ; Type ; Severity ; Details ; +-------+-------+----------+---------------------+ ; tx_en ; Input ; Info ; Stuck at VCC ; +-------+-------+----------+---------------------+ +-------------------------------+ ; Elapsed Time Per Partition ; +----------------+--------------+ ; Partition Name ; Elapsed Time ; +----------------+--------------+ ; Top ; 00:00:00 ; +----------------+--------------+ +-------------------------------+ ; Analysis & Synthesis Messages ; +-------------------------------+ Info: ******************************************************************* Info: Running Quartus II 64-Bit Analysis & Synthesis Info: Version 13.1.0 Build 162 10/23/2013 SJ Full Version Info: Processing started: Sun Aug 04 10:40:13 2024 Info: Command: quartus_map --read_settings_files=on --write_settings_files=off excute -c excute Info (20030): Parallel compilation is enabled and will use 12 of the 12 processors detected Info (12021): Found 1 design units, including 1 entities, in source file /fpga/fpga_lib/uart/uart_rx.v Info (12023): Found entity 1: uart_rx Info (12021): Found 1 design units, including 1 entities, in source file /fpga/fpga_lib/uart/div_clk.v Info (12023): Found entity 1: div_clk Info (12021): Found 1 design units, including 1 entities, in source file /fpga/fpga_lib/uart/uart_tx.v Info (12023): Found entity 1: uart_tx Info (12021): Found 1 design units, including 1 entities, in source file /fpga/fpga_lib/uart/uart_top.v Info (12023): Found entity 1: uart_top Info (12127): Elaborating entity "uart_top" for the top level hierarchy Info (12128): Elaborating entity "div_clk" for hierarchy "div_clk:uart_div_c0" Info (12128): Elaborating entity "uart_tx" for hierarchy "uart_tx:uart_tx_c0" Warning (10235): Verilog HDL Always Construct warning at uart_tx.v(56): variable "tx_data" is read inside the Always Construct but isn't in the Always Construct's Event Control Warning (10235): Verilog HDL Always Construct warning at uart_tx.v(59): variable "data" is read inside the Always Construct but isn't in the Always Construct's Event Control Info (10264): Verilog HDL Case Statement information at uart_tx.v(53): all case item expressions in this case statement are onehot Warning (10240): Verilog HDL Always Construct warning at uart_tx.v(52): inferring latch(es) for variable "data", which holds its previous value in one or more paths through the always construct Info (10041): Inferred latch for "data[0]" at uart_tx.v(52) Info (10041): Inferred latch for "data[1]" at uart_tx.v(52) Info (10041): Inferred latch for "data[2]" at uart_tx.v(52) Info (10041): Inferred latch for "data[3]" at uart_tx.v(52) Info (10041): Inferred latch for "data[4]" at uart_tx.v(52) Info (10041): Inferred latch for "data[5]" at uart_tx.v(52) Info (10041): Inferred latch for "data[6]" at uart_tx.v(52) Info (10041): Inferred latch for "data[7]" at uart_tx.v(52) Info (12128): Elaborating entity "uart_rx" for hierarchy "uart_rx:uart_rx_c0" Info (10264): Verilog HDL Case Statement information at uart_rx.v(59): all case item expressions in this case statement are onehot Warning (13024): Output pins are stuck at VCC or GND Warning (13410): Pin "tx_pin" is stuck at VCC Warning (13410): Pin "tx_busy" is stuck at GND Info (286030): Timing-Driven Synthesis is running Info (17049): 1 registers lost all their fanouts during netlist optimizations. Info (16010): Generating hard_block partition "hard_block:auto_generated_inst" Info (16011): Adding 0 node(s), including 0 DDIO, 0 PLL, 0 transceiver and 0 LCELL Info (21057): Implemented 61 device resources after synthesis - the final resource count might be different Info (21058): Implemented 3 input pins Info (21059): Implemented 12 output pins Info (21061): Implemented 46 logic cells Info: Quartus II 64-Bit Analysis & Synthesis was successful. 0 errors, 6 warnings Info: Peak virtual memory: 4662 megabytes Info: Processing ended: Sun Aug 04 10:40:14 2024 Info: Elapsed time: 00:00:01 Info: Total CPU time (on all processors): 00:00:01