/Documentation/html/inherit_graph_1.map

/Documentation/html/inherit_graph_1.md5

/Documentation/html/inherit_graph_1.png Cannot display: file marked as a binary type. svn:mime-type = application/octet-stream

/Documentation/html/inherits.html

/Documentation/latex/_display_driverw_decoder___top_8vhd.tex

/Documentation/latex/annotated.tex

/Documentation/latex/class_a_s_c_i_i_decoder.tex

/Documentation/latex/class_a_s_c_i_i_decoder__inherit__graph.md5

/Documentation/latex/class_a_s_c_i_i_decoder__inherit__graph.pdf Cannot display: file marked as a binary type. svn:mime-type = application/octet-stream

/Documentation/latex/class_dist_rom_ascii_decoder.tex

/Documentation/latex/class_dist_rom_ascii_decoder__inherit__graph.md5

/Documentation/latex/class_dist_rom_ascii_decoder__inherit__graph.pdf Cannot display: file marked as a binary type. svn:mime-type = application/octet-stream

/Documentation/latex/classdisplay__driver__w__decoder.tex

/Documentation/latex/classdisplay__driver__w__decoder_1_1display__driver__w__decoder__arch.tex

/Documentation/latex/classdisplay__driver__w__decoder__coll__graph.md5

/Documentation/latex/classdisplay__driver__w__decoder__coll__graph.pdf Cannot display: file marked as a binary type. svn:mime-type = application/octet-stream

/Documentation/latex/classdisplay__driver__w__decoder__coll__graph.pdf

Documentation/latex/classdisplay__driver__w__decoder__coll__graph.pdf Property changes : Added: svn:mime-type ## -0,0 +1 ## +application/octet-stream \ No newline at end of property Index: Documentation/latex/classdisplay__driver__w__decoder__inherit__graph.md5 =================================================================== --- Documentation/latex/classdisplay__driver__w__decoder__inherit__graph.md5 (nonexistent) +++ Documentation/latex/classdisplay__driver__w__decoder__inherit__graph.md5 (revision 8) @@ -0,0 +1 @@ +84ac91aaa75e99f6737f955cf872a10d \ No newline at end of file Index: Documentation/latex/classdisplay__driver__w__decoder__inherit__graph.pdf =================================================================== Cannot display: file marked as a binary type. svn:mime-type = application/octet-stream Index: Documentation/latex/classdisplay__driver__w__decoder__inherit__graph.pdf =================================================================== --- Documentation/latex/classdisplay__driver__w__decoder__inherit__graph.pdf (nonexistent) +++ Documentation/latex/classdisplay__driver__w__decoder__inherit__graph.pdf (revision 8)

Documentation/latex/classdisplay__driver__w__decoder__inherit__graph.pdf Property changes : Added: svn:mime-type ## -0,0 +1 ## +application/octet-stream \ No newline at end of property Index: Documentation/latex/classtb.tex =================================================================== --- Documentation/latex/classtb.tex (revision 7) +++ Documentation/latex/classtb.tex (revision 8) @@ -2,8 +2,7 @@ \label{classtb}\index{tb@{tb}} -Inheritance diagram for tb\+: -\nopagebreak +Inheritance diagram for tb\+:\nopagebreak \begin{figure}[H] \begin{center} \leavevmode @@ -12,8 +11,7 @@ \end{figure} -Collaboration diagram for tb\+: -\nopagebreak +Collaboration diagram for tb\+:\nopagebreak \begin{figure}[H] \begin{center} \leavevmode

/Documentation/latex/hierarchy.tex

/Documentation/latex/index.tex

/Documentation/latex/refman.tex

/Project/Sources/ASCIIDecoder.vhd File deleted

Project/Sources/ASCIIDecoder.vhd Property changes : Deleted: svn:mime-type ## -1 +0,0 ## -text/plain \ No newline at end of property Index: Project/Sources/DisplayDriverWrapper.vhd =================================================================== --- Project/Sources/DisplayDriverWrapper.vhd (revision 7) +++ Project/Sources/DisplayDriverWrapper.vhd (nonexistent) @@ -1,98 +0,0 @@ --------------------------------------------------------------------------------- --- Entity: DisplayDriverWrapper --- Date:2017-01-06 --- Author: GL --- --- Description: --------------------------------------------------------------------------------- -library ieee; -use ieee.std_logic_1164.all; -use ieee.numeric_std.all; - ---! @file ---! @brief Top wrapper for design FPGA prove. ---! @details This wrapper is designed for Lattice ECP5-5G Versa Development Kit. -entity DisplayDriverWrapper is - port ( - clk : in std_logic; --! input clock, xx MHz. - n_rst : in std_logic; --! active low on board. active high in design. - - button : in std_logic; --! dev board tact switch to scroll through some test symbols, active low - - --! Typically the data fed to display (single or multiple) is provided for single display at a time. - --! If multiple displays are required together with data goes display select (according typical dynamic display indication). - disp_data : out std_logic_vector(14 downto 0); - - --! If more displays needs to be fed change disp_sel to vector with length equal to number of displays. - --! Use principles of the standard dynamic indication: provide data then enable the displays sequentially. - --! If brightness control is desired just AND the selector and the PWM controller output. - disp_sel : out std_logic - ); - attribute syn_force_pad: boolean; - attribute syn_force_pad of clk, n_rst, button, disp_sel, disp_data: signal is true; -end DisplayDriverWrapper; - ---! @details The architecture consists of the DisplayDriverwDecoder_Top itself (as DUT) plus ---! sample symbol generator triggered by the button on the dev board -architecture arch of DisplayDriverWrapper is - signal rst: std_logic; - - --! Debounce the glitches shorter than 4 clock cycles. Expand at will according the clock speed and glitch duration to filter. - signal bttn_state_fifo: unsigned(3 downto 0); - - --! Active high i.e. '1' means "button pressed" - signal bttn_state: std_logic; - - --! Incremented by 1 each time button is clicked. Provides ASCII symbol code for test purposes - --! Counter range is double the decoder table size because codes from 0x00 to 0x7F are the symbols with decimal point dark. - --! Codes from 0x80 to 0xFF are the same symbols but with decimal point lit. The decoder should handle this. The counter is lineary incremented. - signal symbol_scan_cntr: unsigned(7 downto 0); -begin - ---! invert n_rst to make it active high on design recommendation -rst <= not n_rst; - -BtnDebouncer:process(clk) -begin - if rising_edge(clk) then - if rst = '1' then - bttn_state_fifo <= (others=>'1'); -- active low - bttn_state <= '0'; -- active high - else - bttn_state_fifo <= shift_left(bttn_state_fifo,1); - bttn_state_fifo(bttn_state_fifo'right) <= button; - - if bttn_state_fifo = "0000" then -- button actuated for more than X clocks and no bounces present - bttn_state <= '1'; -- report button is actuated - else - bttn_state <= '0'; - end if; - end if; - end if; -end process; - - -AddrScanCntr:process(rst,bttn_state) -begin - if rst='1' then - symbol_scan_cntr <= (others=>'0'); - elsif rising_edge(bttn_state) then -- TODO: Fix this to edge detector implementation - symbol_scan_cntr <= symbol_scan_cntr + 1; -- I count ont the natural rolloff of this counter - end if; -end process; - - -DDwD_Top:entity work.DisplayDriverwDecoder_Top -port map( - clk => clk, - reset => rst, - ascii_in => std_logic_vector(symbol_scan_cntr), - wr_en => '0', - disp_data => disp_data, - disp_sel => disp_sel -); - ---disp_sel <= '1' when button = '1'; - -end arch; -

Project/Sources/DisplayDriverWrapper.vhd Property changes : Deleted: svn:mime-type ## -1 +0,0 ## -text/plain \ No newline at end of property Index: Project/Sources/DisplayDriverwDecoder_Top.vhd =================================================================== --- Project/Sources/DisplayDriverwDecoder_Top.vhd (revision 7) +++ Project/Sources/DisplayDriverwDecoder_Top.vhd (revision 8) @@ -1,5 +1,5 @@ -------------------------------------------------------------------------------- --- Entity: DisplayDriverwDecoder_Top +-- Entity: display_driver_w_decoder -- Date:2017-01-06 -- Author: GL -- @@ -12,20 +12,14 @@ use ieee.std_logic_1164.all; use ieee.numeric_std.all; ---! Top entity of the display driver. -entity DisplayDriverwDecoder_Top is +--! @brief Top entity of the display driver. +--! @details Top entity of the decoder architecture. Module description also goes here. +entity display_driver_w_decoder is port ( clk : in std_logic; --! input clock, xx MHz. reset : in std_logic; --! active high - --! ASCII symbols are coded in 1B having values from 0x00 to 0x7F. - --! Current implementation uses 104-Character ASCII Font Map described in MAX6955 Datasheet. - --! https://datasheets.maximintegrated.com/en/ds/MAX6955.pdf - --! The MSB is used to light the display dot. - --! For example if you want to display H the code will be 0x48 (or 01001000b). - --! If you want to display H. the code will be 0xC8 (or 11001000b). - -- TODO: refactor the comment above to be clear when the idea gets clear - ascii_in: in std_logic_vector(7 downto 0); + ascii_in: in std_logic_vector(7 downto 0); --! input ASCII code to display wr_en : in std_logic; --! active high write enable to store the ASCII code in a register --! Typically the data fed to display (single or multiple) is provided for single display at a time. @@ -36,8 +30,8 @@ --! |:--------: |:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:| --! |Display Segment| dp| m| l| k| j| i| h| g2| g1| f| e| d| c| b|a | --! Note that there is no standard way to name the segments. - --! Current data bits correspondt to display segments according this picture: https://www.maximintegrated.com/en/images/appnotes/3211/3211Fig02.gif - disp_data : out std_logic_vector(14 downto 0); + --! Current data bits correspondt to display segments according this picture: @image html https://www.maximintegrated.com/en/images/appnotes/3211/3211Fig02.gif + disp_data_q : out std_logic_vector(14 downto 0); --! If more displays needs to be fed change disp_sel to vector with length equal to number of displays. --! Use principles of the standard dynamic indication: provide data then enable the displays sequentially. @@ -44,11 +38,11 @@ --! If brightness control is desired just AND the selector and the PWM controller output. disp_sel : out std_logic ); -end DisplayDriverwDecoder_Top; +end display_driver_w_decoder; ---! @brief Architecture definition of the DisplayDriverwDecoder_Top ---! @details Detailed description of the DisplayDriverwDecoder_Top architecture. -architecture arch of DisplayDriverwDecoder_Top is +--! @brief Architecture definition of the display_driver_w_decoder +--! @details Architecture describes the structure of the module together with doxygen description for doumentation generatior +architecture display_driver_w_decoder_arch of display_driver_w_decoder is signal ascii_reg: std_logic_vector(7 downto 0); @@ -56,33 +50,44 @@ attribute syn_noprune of ascii_reg: signal is true; begin - --! \mainpage My Personal Index Page + --! \mainpage 14-segment Display Driver Info --! --! \section intro_sec Introduction --! - --! The module contains: - --! -# Input data register to hold the ASCII symbol codes - --! -# Decoder to translate the code to 14-segment display word - --! -# here is also the driver - --! - --! \section install_sec Installation + --! The main purpose of this module is to be fed with ASCI symbol codes and it will output word lighting up the exact segments + --! on the 14-segment display to visualize the ASCII character. Current implementation uses input register to store the input code. --! - --! \subsection step1 Step 1: Opening the box - --! - --! etc... - + --! ASCII symbols are coded in Byte having values from 0x00 to 0x7F. This range covers all the symbols in the decoding table. + --! The range is doubled because the symbols may be lit with DP on or off. More information may be found in MAX6955 datasheet. + --! Follows small revised quote of the most descriptive part related to decoding. Not applicable words are removed. + --! + --! ... includes 104-character ASCII font maps for 14-segment... . The characters follow the standard ASCII font, with the + --! addition of the following common symbols: GBP, EUR, Yen, degree, micro, plus/minus, arrow up, and arrow down. + --! Seven bits represent the 104-character font map; an 8th bit is used to select whether the decimal point (DP) is lit. + --! source: https://datasheets.maximintegrated.com/en/ds/MAX6955.pdf + --! + --! \section port_disp_data Display Data Out + --! + --! Typically the data fed to display (single or multiple) is provided for single display at a time. + --! If multiple displays are required disp_sel signal must be provided (according typical dynamic display indication) to determine + --! for which display is the data targeted. + --! + --! \subsection disp_data_bit_mapping Display Segment Bit Mapping + --! |Bit Number | 14| 13| 12| 11| 10| 9| 8| 7| 6| 5| 4| 3| 2| 1|0 | + --! |:--------: |:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:| + --! |Display Segment| dp| m| l| k| j| i| h| g2| g1| f| e| d| c| b|a | + --! Note that there is no standard way to name the segments. + --! Current data bits correspondt to display segments according this picture: @image html https://www.maximintegrated.com/en/images/appnotes/3211/3211Fig02.gif + ascii_decoder_module:entity work.ASCIIDecoder port map( clk => clk, reset => reset, ascii_in => ascii_in, - disp_data => disp_data + disp_data_q => disp_data_q ); disp_sel <= '0'; -- TODO: implement this correctly --- disp_data <= "110110111110000"; -- D --- disp_data <= "010110101110000"; -- B. +end display_driver_w_decoder_arch; -end arch; -

/Project/Sources/ascii_decoder.vhd

Project/Sources/ascii_decoder.vhd Property changes : Added: svn:mime-type ## -0,0 +1 ## +text/plain \ No newline at end of property Index: Project/Sources/display_driver_w_decoder.vhd =================================================================== --- Project/Sources/display_driver_w_decoder.vhd (nonexistent) +++ Project/Sources/display_driver_w_decoder.vhd (revision 8) @@ -0,0 +1,93 @@ +-------------------------------------------------------------------------------- +-- Entity: display_driver_w_decoder +-- Date:2017-01-06 +-- Author: GL +-- +-- Description: Top module for display driver with decoder +--! @file +--! @brief Display Driver With Decoder Top Level Module +-------------------------------------------------------------------------------- + +library ieee; +use ieee.std_logic_1164.all; +use ieee.numeric_std.all; + +--! @brief Top entity of the display driver. +--! @details Top entity of the decoder architecture. Module description also goes here. +entity display_driver_w_decoder is + port ( + clk : in std_logic; --! input clock, xx MHz. + reset : in std_logic; --! active high + + ascii_in: in std_logic_vector(7 downto 0); --! input ASCII code to display + wr_en : in std_logic; --! active high write enable to store the ASCII code in a register + + --! Typically the data fed to display (single or multiple) is provided for single display at a time. + --! If multiple displays are required disp_sel signal must be provided (according typical dynamic display indication). + --! + --! \section disp_data_bit_mapping Display Segment Bit Mapping + --! |Bit Number | 14| 13| 12| 11| 10| 9| 8| 7| 6| 5| 4| 3| 2| 1|0 | + --! |:--------: |:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:| + --! |Display Segment| dp| m| l| k| j| i| h| g2| g1| f| e| d| c| b|a | + --! Note that there is no standard way to name the segments. + --! Current data bits correspondt to display segments according this picture: @image html https://www.maximintegrated.com/en/images/appnotes/3211/3211Fig02.gif + disp_data_q : out std_logic_vector(14 downto 0); + + --! If more displays needs to be fed change disp_sel to vector with length equal to number of displays. + --! Use principles of the standard dynamic indication: provide data then enable the displays sequentially. + --! If brightness control is desired just AND the selector and the PWM controller output. + disp_sel : out std_logic + ); +end display_driver_w_decoder; + +--! @brief Architecture definition of the display_driver_w_decoder +--! @details Architecture describes the structure of the module together with doxygen description for doumentation generatior +architecture display_driver_w_decoder_arch of display_driver_w_decoder is + + signal ascii_reg: std_logic_vector(7 downto 0); + + attribute syn_noprune: boolean; + attribute syn_noprune of ascii_reg: signal is true; +begin + + --! \mainpage 14-segment Display Driver Info + --! + --! \section intro_sec Introduction + --! + --! The main purpose of this module is to be fed with ASCI symbol codes and it will output word lighting up the exact segments + --! on the 14-segment display to visualize the ASCII character. Current implementation uses input register to store the input code. + --! + --! ASCII symbols are coded in Byte having values from 0x00 to 0x7F. This range covers all the symbols in the decoding table. + --! The range is doubled because the symbols may be lit with DP on or off. More information may be found in MAX6955 datasheet. + --! Follows small revised quote of the most descriptive part related to decoding. Not applicable words are removed. + --! + --! ... includes 104-character ASCII font maps for 14-segment... . The characters follow the standard ASCII font, with the + --! addition of the following common symbols: GBP, EUR, Yen, degree, micro, plus/minus, arrow up, and arrow down. + --! Seven bits represent the 104-character font map; an 8th bit is used to select whether the decimal point (DP) is lit. + --! source: https://datasheets.maximintegrated.com/en/ds/MAX6955.pdf + --! + --! \section port_disp_data Display Data Out + --! + --! Typically the data fed to display (single or multiple) is provided for single display at a time. + --! If multiple displays are required disp_sel signal must be provided (according typical dynamic display indication) to determine + --! for which display is the data targeted. + --! + --! \subsection disp_data_bit_mapping Display Segment Bit Mapping + --! |Bit Number | 14| 13| 12| 11| 10| 9| 8| 7| 6| 5| 4| 3| 2| 1|0 | + --! |:--------: |:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:| + --! |Display Segment| dp| m| l| k| j| i| h| g2| g1| f| e| d| c| b|a | + --! Note that there is no standard way to name the segments. + --! Current data bits correspondt to display segments according this picture: @image html https://www.maximintegrated.com/en/images/appnotes/3211/3211Fig02.gif + + ascii_decoder_module:entity work.ASCIIDecoder + port map( + clk => clk, + reset => reset, + ascii_in => ascii_in, + disp_data_q => disp_data_q + ); + + disp_sel <= '0'; -- TODO: implement this correctly + +end display_driver_w_decoder_arch; +

Project/Sources/display_driver_w_decoder.vhd Property changes : Added: svn:mime-type ## -0,0 +1 ## +text/plain \ No newline at end of property Index: Project/Sources/display_driver_wrapper.vhd =================================================================== --- Project/Sources/display_driver_wrapper.vhd (nonexistent) +++ Project/Sources/display_driver_wrapper.vhd (revision 8) @@ -0,0 +1,98 @@ +-------------------------------------------------------------------------------- +-- Entity: DisplayDriverWrapper +-- Date:2017-01-06 +-- Author: GL +-- +-- Description: +-------------------------------------------------------------------------------- +library ieee; +use ieee.std_logic_1164.all; +use ieee.numeric_std.all; + +--! @file +--! @brief Top wrapper for design FPGA prove. +--! @details This wrapper is designed for Lattice ECP5-5G Versa Development Kit. +entity DisplayDriverWrapper is + port ( + clk : in std_logic; --! input clock, xx MHz. + n_rst : in std_logic; --! active low on board. active high in design. + + button : in std_logic; --! dev board tact switch to scroll through some test symbols, active low + + --! Typically the data fed to display (single or multiple) is provided for single display at a time. + --! If multiple displays are required together with data goes display select (according typical dynamic display indication). + disp_data : out std_logic_vector(14 downto 0); + + --! If more displays needs to be fed change disp_sel to vector with length equal to number of displays. + --! Use principles of the standard dynamic indication: provide data then enable the displays sequentially. + --! If brightness control is desired just AND the selector and the PWM controller output. + disp_sel : out std_logic + ); + attribute syn_force_pad: boolean; + attribute syn_force_pad of clk, n_rst, button, disp_sel, disp_data: signal is true; +end DisplayDriverWrapper; + +--! @details The architecture consists of the DisplayDriverwDecoder_Top itself (as DUT) plus +--! sample symbol generator triggered by the button on the dev board +architecture arch of DisplayDriverWrapper is + signal rst: std_logic; + + --! Debounce the glitches shorter than 4 clock cycles. Expand at will according the clock speed and glitch duration to filter. + signal bttn_state_fifo: unsigned(3 downto 0); + + --! Active high i.e. '1' means "button pressed" + signal bttn_state: std_logic; + + --! Incremented by 1 each time button is clicked. Provides ASCII symbol code for test purposes + --! Counter range is double the decoder table size because codes from 0x00 to 0x7F are the symbols with decimal point dark. + --! Codes from 0x80 to 0xFF are the same symbols but with decimal point lit. The decoder should handle this. The counter is lineary incremented. + signal symbol_scan_cntr: unsigned(7 downto 0); +begin + +--! invert n_rst to make it active high on design recommendation +rst <= not n_rst; + +BtnDebouncer:process(clk) +begin + if rising_edge(clk) then + if rst = '1' then + bttn_state_fifo <= (others=>'1'); -- active low + bttn_state <= '0'; -- active high + else + bttn_state_fifo <= shift_left(bttn_state_fifo,1); + bttn_state_fifo(bttn_state_fifo'right) <= button; + + if bttn_state_fifo = "0000" then -- button actuated for more than X clocks and no bounces present + bttn_state <= '1'; -- report button is actuated + else + bttn_state <= '0'; + end if; + end if; + end if; +end process; + + +AddrScanCntr:process(rst,bttn_state) +begin + if rst='1' then + symbol_scan_cntr <= (others=>'0'); + elsif rising_edge(bttn_state) then -- TODO: Fix this to edge detector implementation + symbol_scan_cntr <= symbol_scan_cntr + 1; -- I count ont the natural rolloff of this counter + end if; +end process; + + +DDwD_Top:entity work.DisplayDriverwDecoder_Top +port map( + clk => clk, + reset => rst, + ascii_in => std_logic_vector(symbol_scan_cntr), + wr_en => '0', + disp_data => disp_data, + disp_sel => disp_sel +); + +--disp_sel <= '1' when button = '1'; + +end arch; +

Project/Sources/display_driver_wrapper.vhd Property changes : Added: svn:mime-type ## -0,0 +1 ## +text/plain \ No newline at end of property