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[/] [w11/] [tags/] [w11a_V0.6/] [rtl/] [bplib/] [nexys2/] [tb/] [tb_nexys2_fusp_cuff.vhd] - Rev 24
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-- $Id: tb_nexys2_fusp_cuff.vhd 509 2013-04-21 20:46:20Z mueller $ -- -- Copyright 2013- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de> -- -- This program is free software; you may redistribute and/or modify it under -- the terms of the GNU General Public License as published by the Free -- Software Foundation, either version 2, or at your option any later version. -- -- This program is distributed in the hope that it will be useful, but -- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- for complete details. -- ------------------------------------------------------------------------------ -- Module Name: tb_nexys2_fusp_cuff - sim -- Description: Test bench for nexys2 (base+fusp+cuff) -- -- Dependencies: simlib/simclk -- simlib/simclkcnt -- xlib/dcm_sfs -- rlink/tb/tbcore_rlink_dcm -- tb_nexys2_core -- serport/serport_uart_rxtx -- fx2lib/tb/fx2_2fifo_core -- nexys2_fusp_cuff_aif [UUT] -- -- To test: generic, any nexys2_fusp_cuff_aif target -- -- Target Devices: generic -- Tool versions: xst 13.3; ghdl 0.29 -- -- Revision History: -- Date Rev Version Comment -- 2013-01-03 469 1.1 add fx2 model and data path -- 2013-01-01 467 1.0 Initial version (derived from tb_nexys2_fusp) ------------------------------------------------------------------------------ library ieee; use ieee.std_logic_1164.all; use ieee.numeric_std.all; use ieee.std_logic_textio.all; use std.textio.all; use work.slvtypes.all; use work.rlinklib.all; use work.rlinktblib.all; use work.serportlib.all; use work.xlib.all; use work.nexys2lib.all; use work.simlib.all; use work.simbus.all; use work.sys_conf.all; entity tb_nexys2_fusp_cuff is end tb_nexys2_fusp_cuff; architecture sim of tb_nexys2_fusp_cuff is signal CLKOSC : slbit := '0'; signal CLKCOM : slbit := '0'; signal CLK_STOP : slbit := '0'; signal CLKCOM_CYCLE : integer := 0; signal RESET : slbit := '0'; signal CLKDIV : slv2 := "00"; -- run with 1 clocks / bit !! signal TBC_RXDATA : slv8 := (others=>'0'); signal TBC_RXVAL : slbit := '0'; signal TBC_RXHOLD : slbit := '0'; signal TBC_TXDATA : slv8 := (others=>'0'); signal TBC_TXENA : slbit := '0'; signal UART_RXDATA : slv8 := (others=>'0'); signal UART_RXVAL : slbit := '0'; signal UART_RXERR : slbit := '0'; signal UART_RXACT : slbit := '0'; signal UART_TXDATA : slv8 := (others=>'0'); signal UART_TXENA : slbit := '0'; signal UART_TXBUSY : slbit := '0'; signal FX2_RXDATA : slv8 := (others=>'0'); signal FX2_RXENA : slbit := '0'; signal FX2_RXBUSY : slbit := '0'; signal FX2_TXDATA : slv8 := (others=>'0'); signal FX2_TXVAL : slbit := '0'; signal I_RXD : slbit := '1'; signal O_TXD : slbit := '1'; signal I_SWI : slv8 := (others=>'0'); signal I_BTN : slv4 := (others=>'0'); signal O_LED : slv8 := (others=>'0'); signal O_ANO_N : slv4 := (others=>'0'); signal O_SEG_N : slv8 := (others=>'0'); signal O_MEM_CE_N : slbit := '1'; signal O_MEM_BE_N : slv2 := (others=>'1'); signal O_MEM_WE_N : slbit := '1'; signal O_MEM_OE_N : slbit := '1'; signal O_MEM_ADV_N : slbit := '1'; signal O_MEM_CLK : slbit := '0'; signal O_MEM_CRE : slbit := '0'; signal I_MEM_WAIT : slbit := '0'; signal O_MEM_ADDR : slv23 := (others=>'Z'); signal IO_MEM_DATA : slv16 := (others=>'0'); signal O_FLA_CE_N : slbit := '0'; signal O_FUSP_RTS_N : slbit := '0'; signal I_FUSP_CTS_N : slbit := '0'; signal I_FUSP_RXD : slbit := '1'; signal O_FUSP_TXD : slbit := '1'; signal I_FX2_IFCLK : slbit := '0'; signal O_FX2_FIFO : slv2 := (others=>'0'); signal I_FX2_FLAG : slv4 := (others=>'0'); signal O_FX2_SLRD_N : slbit := '1'; signal O_FX2_SLWR_N : slbit := '1'; signal O_FX2_SLOE_N : slbit := '1'; signal O_FX2_PKTEND_N : slbit := '1'; signal IO_FX2_DATA : slv8 := (others=>'Z'); signal UART_RESET : slbit := '0'; signal UART_RXD : slbit := '1'; signal UART_TXD : slbit := '1'; signal CTS_N : slbit := '0'; signal RTS_N : slbit := '0'; signal R_PORTSEL_SER : slbit := '0'; -- if 1 use alternate serport signal R_PORTSEL_FX2 : slbit := '0'; -- if 1 use fx2 constant sbaddr_portsel: slv8 := slv(to_unsigned( 8,8)); constant clock_period : time := 20 ns; constant clock_offset : time := 200 ns; begin CLKGEN : simclk generic map ( PERIOD => clock_period, OFFSET => clock_offset) port map ( CLK => CLKOSC, CLK_STOP => CLK_STOP ); SB_CLKSTOP <= CLK_STOP; DCM_COM : dcm_sfs generic map ( CLKFX_DIVIDE => sys_conf_clkfx_divide, CLKFX_MULTIPLY => sys_conf_clkfx_multiply, CLKIN_PERIOD => 20.0) port map ( CLKIN => CLKOSC, CLKFX => CLKCOM, LOCKED => open ); CLKCNT : simclkcnt port map (CLK => CLKCOM, CLK_CYCLE => CLKCOM_CYCLE); TBCORE : tbcore_rlink port map ( CLK => CLKCOM, CLK_STOP => CLK_STOP, RX_DATA => TBC_RXDATA, RX_VAL => TBC_RXVAL, RX_HOLD => TBC_RXHOLD, TX_DATA => TBC_TXDATA, TX_ENA => TBC_TXENA ); N2CORE : entity work.tb_nexys2_core port map ( I_SWI => I_SWI, I_BTN => I_BTN, O_MEM_CE_N => O_MEM_CE_N, O_MEM_BE_N => O_MEM_BE_N, O_MEM_WE_N => O_MEM_WE_N, O_MEM_OE_N => O_MEM_OE_N, O_MEM_ADV_N => O_MEM_ADV_N, O_MEM_CLK => O_MEM_CLK, O_MEM_CRE => O_MEM_CRE, I_MEM_WAIT => I_MEM_WAIT, O_MEM_ADDR => O_MEM_ADDR, IO_MEM_DATA => IO_MEM_DATA ); UUT : nexys2_fusp_cuff_aif port map ( I_CLK50 => CLKOSC, I_RXD => I_RXD, O_TXD => O_TXD, I_SWI => I_SWI, I_BTN => I_BTN, O_LED => O_LED, O_ANO_N => O_ANO_N, O_SEG_N => O_SEG_N, O_MEM_CE_N => O_MEM_CE_N, O_MEM_BE_N => O_MEM_BE_N, O_MEM_WE_N => O_MEM_WE_N, O_MEM_OE_N => O_MEM_OE_N, O_MEM_ADV_N => O_MEM_ADV_N, O_MEM_CLK => O_MEM_CLK, O_MEM_CRE => O_MEM_CRE, I_MEM_WAIT => I_MEM_WAIT, O_MEM_ADDR => O_MEM_ADDR, IO_MEM_DATA => IO_MEM_DATA, O_FLA_CE_N => O_FLA_CE_N, O_FUSP_RTS_N => O_FUSP_RTS_N, I_FUSP_CTS_N => I_FUSP_CTS_N, I_FUSP_RXD => I_FUSP_RXD, O_FUSP_TXD => O_FUSP_TXD, I_FX2_IFCLK => I_FX2_IFCLK, O_FX2_FIFO => O_FX2_FIFO, I_FX2_FLAG => I_FX2_FLAG, O_FX2_SLRD_N => O_FX2_SLRD_N, O_FX2_SLWR_N => O_FX2_SLWR_N, O_FX2_SLOE_N => O_FX2_SLOE_N, O_FX2_PKTEND_N => O_FX2_PKTEND_N, IO_FX2_DATA => IO_FX2_DATA ); UART : serport_uart_rxtx generic map ( CDWIDTH => CLKDIV'length) port map ( CLK => CLKCOM, RESET => UART_RESET, CLKDIV => CLKDIV, RXSD => UART_RXD, RXDATA => UART_RXDATA, RXVAL => UART_RXVAL, RXERR => UART_RXERR, RXACT => UART_RXACT, TXSD => UART_TXD, TXDATA => UART_TXDATA, TXENA => UART_TXENA, TXBUSY => UART_TXBUSY ); FX2 : entity work.fx2_2fifo_core port map ( CLK => CLKCOM, RESET => '0', RXDATA => FX2_RXDATA, RXENA => FX2_RXENA, RXBUSY => FX2_RXBUSY, TXDATA => FX2_TXDATA, TXVAL => FX2_TXVAL, IFCLK => I_FX2_IFCLK, FIFO => O_FX2_FIFO, FLAG => I_FX2_FLAG, SLRD_N => O_FX2_SLRD_N, SLWR_N => O_FX2_SLWR_N, SLOE_N => O_FX2_SLOE_N, PKTEND_N => O_FX2_PKTEND_N, DATA => IO_FX2_DATA ); proc_fx2_mux: process (R_PORTSEL_FX2, TBC_RXDATA, TBC_RXVAL, UART_TXBUSY, RTS_N, UART_RXDATA, UART_RXVAL, FX2_RXBUSY, FX2_TXDATA, FX2_TXVAL ) begin if R_PORTSEL_FX2 = '0' then -- use serport UART_TXDATA <= TBC_RXDATA; UART_TXENA <= TBC_RXVAL; TBC_RXHOLD <= UART_TXBUSY or RTS_N; TBC_TXDATA <= UART_RXDATA; TBC_TXENA <= UART_RXVAL; else -- otherwise use fx2 FX2_RXDATA <= TBC_RXDATA; FX2_RXENA <= TBC_RXVAL; TBC_RXHOLD <= FX2_RXBUSY; TBC_TXDATA <= FX2_TXDATA; TBC_TXENA <= FX2_TXVAL; end if; end process proc_fx2_mux; proc_ser_mux: process (R_PORTSEL_SER, UART_TXD, CTS_N, O_TXD, O_FUSP_TXD, O_FUSP_RTS_N) begin if R_PORTSEL_SER = '0' then -- use main board rs232, no flow cntl I_RXD <= UART_TXD; -- write port 0 inputs UART_RXD <= O_TXD; -- get port 0 outputs RTS_N <= '0'; I_FUSP_RXD <= '1'; -- port 1 inputs to idle state I_FUSP_CTS_N <= '0'; else -- otherwise use pmod1 rs232 I_FUSP_RXD <= UART_TXD; -- write port 1 inputs I_FUSP_CTS_N <= CTS_N; UART_RXD <= O_FUSP_TXD; -- get port 1 outputs RTS_N <= O_FUSP_RTS_N; I_RXD <= '1'; -- port 0 inputs to idle state end if; end process proc_ser_mux; proc_moni: process variable oline : line; begin loop wait until rising_edge(CLKCOM); if UART_RXERR = '1' then writetimestamp(oline, CLKCOM_CYCLE, " : seen UART_RXERR=1"); writeline(output, oline); end if; end loop; end process proc_moni; proc_simbus: process (SB_VAL) begin if SB_VAL'event and to_x01(SB_VAL)='1' then if SB_ADDR = sbaddr_portsel then R_PORTSEL_SER <= to_x01(SB_DATA(0)); R_PORTSEL_FX2 <= to_x01(SB_DATA(1)); end if; end if; end process proc_simbus; end sim;