URL
https://opencores.org/ocsvn/w11/w11/trunk
Subversion Repositories w11
[/] [w11/] [tags/] [w11a_V0.6/] [rtl/] [sys_gen/] [w11a/] [nexys3/] [sys_w11a_n3.vhd] - Rev 40
Go to most recent revision | Compare with Previous | Blame | View Log
-- $Id: sys_w11a_n3.vhd 538 2013-10-06 17:21:25Z mueller $ -- -- Copyright 2011-2013 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: sys_w11a_n3 - syn -- Description: w11a test design for nexys3 -- -- Dependencies: vlib/xlib/s6_cmt_sfs -- vlib/genlib/clkdivce -- bplib/bpgen/bp_rs232_2l4l_iob -- bplib/bpgen/sn_humanio_rbus -- bplib/fx2rlink/rlink_sp1c_fx2 -- bplib/fx2rlink/ioleds_sp1c_fx2 -- vlib/rri/rb_sres_or_3 -- w11a/pdp11_core_rbus -- w11a/pdp11_core -- w11a/pdp11_bram -- vlib/nxcramlib/nx_cram_dummy -- w11a/pdp11_cache -- w11a/pdp11_mem70 -- bplib/nxcramlib/nx_cram_memctl_as -- ibus/ib_sres_or_2 -- ibus/ibdr_minisys -- ibus/ibdr_maxisys -- w11a/pdp11_tmu_sb [sim only] -- -- Test bench: tb/tb_sys_w11a_n3 -- -- Target Devices: generic -- Tool versions: xst 13.1, 14.6; ghdl 0.29 -- -- Synthesized (xst): -- Date Rev ise Target flop lutl lutm slic t peri -- 2013-04-21 509 13.3 O76d xc6slx16-2 1516 3274 140 1184 ok: now + FX2 ! -- 2011-12-18 440 13.1 O40d xc6slx16-2 1441 3161 96 1084 ok: LP+PC+DL+II -- 2011-11-20 430 13.1 O40d xc6slx16-2 1412 3206 84 1063 ok: LP+PC+DL+II -- -- Revision History: -- Date Rev Version Comment -- 2013-10-06 538 1.5 pll support, use clksys_vcodivide ect -- 2013-04-21 509 1.4 added fx2 (cuff) support -- 2011-12-18 440 1.0.4 use rlink_sp1c -- 2011-12-04 435 1.0.3 increase ATOWIDTH 6->7 (saw i/o timeouts on wblks) -- 2011-11-26 433 1.0.2 use nx_cram_(dummy|memctl_as) now -- 2011-11-23 432 1.0.1 fixup PPCM handling -- 2011-11-20 430 1.0 Initial version (derived from sys_w11a_n2) ------------------------------------------------------------------------------ -- -- w11a test design for nexys3 -- w11a + rlink + serport -- -- Usage of Nexys 3 Switches, Buttons, LEDs: -- -- SWI(7:3): no function (only connected to sn_humanio_rbus) -- (2) 0 -> int/ext RS242 port for rlink -- 1 -> use USB interface for rlink -- SWI(1): 1 enable XON -- SWI(0): 0 -> main board RS232 port -- 1 -> Pmod B/top RS232 port -- -- LED(7) MEM_ACT_W -- (6) MEM_ACT_R -- (5) cmdbusy (all rlink access, mostly rdma) -- (4:0): if cpugo=1 show cpu mode activity -- (4) kernel mode, pri>0 -- (3) kernel mode, pri=0 -- (2) kernel mode, wait -- (1) supervisor mode -- (0) user mode -- if cpugo=0 shows cpurust -- (3:0) cpurust code -- (4) '1' -- -- DP(3:0) shows IO activity -- if SWI(2)=0 (serport) -- (3): not SER_MONI.txok (shows tx back preasure) -- (2): SER_MONI.txact (shows tx activity) -- (1): not SER_MONI.rxok (shows rx back preasure) -- (0): SER_MONI.rxact (shows rx activity) -- if SWI(2)=1 (fx2-usb) -- (3): RB_SRES.busy (shows rbus back preasure) -- (2): RLB_TXBUSY (shows tx back preasure) -- (1): RLB_TXENA (shows tx activity) -- (0): RLB_RXVAL (shows rx activity) -- library ieee; use ieee.std_logic_1164.all; use ieee.numeric_std.all; use work.slvtypes.all; use work.xlib.all; use work.genlib.all; use work.serportlib.all; use work.rblib.all; use work.rlinklib.all; use work.fx2lib.all; use work.fx2rlinklib.all; use work.bpgenlib.all; use work.bpgenrbuslib.all; use work.nxcramlib.all; use work.iblib.all; use work.ibdlib.all; use work.pdp11.all; use work.sys_conf.all; -- ---------------------------------------------------------------------------- entity sys_w11a_n3 is -- top level -- implements nexys3_fusp_cuff_aif port ( I_CLK100 : in slbit; -- 100 MHz clock I_RXD : in slbit; -- receive data (board view) O_TXD : out slbit; -- transmit data (board view) I_SWI : in slv8; -- n3 switches I_BTN : in slv5; -- n3 buttons O_LED : out slv8; -- n3 leds O_ANO_N : out slv4; -- 7 segment disp: anodes (act.low) O_SEG_N : out slv8; -- 7 segment disp: segments (act.low) O_MEM_CE_N : out slbit; -- cram: chip enable (act.low) O_MEM_BE_N : out slv2; -- cram: byte enables (act.low) O_MEM_WE_N : out slbit; -- cram: write enable (act.low) O_MEM_OE_N : out slbit; -- cram: output enable (act.low) O_MEM_ADV_N : out slbit; -- cram: address valid (act.low) O_MEM_CLK : out slbit; -- cram: clock O_MEM_CRE : out slbit; -- cram: command register enable I_MEM_WAIT : in slbit; -- cram: mem wait O_MEM_ADDR : out slv23; -- cram: address lines IO_MEM_DATA : inout slv16; -- cram: data lines O_PPCM_CE_N : out slbit; -- ppcm: ... O_PPCM_RST_N : out slbit; -- ppcm: ... O_FUSP_RTS_N : out slbit; -- fusp: rs232 rts_n I_FUSP_CTS_N : in slbit; -- fusp: rs232 cts_n I_FUSP_RXD : in slbit; -- fusp: rs232 rx O_FUSP_TXD : out slbit; -- fusp: rs232 tx I_FX2_IFCLK : in slbit; -- fx2: interface clock O_FX2_FIFO : out slv2; -- fx2: fifo address I_FX2_FLAG : in slv4; -- fx2: fifo flags O_FX2_SLRD_N : out slbit; -- fx2: read enable (act.low) O_FX2_SLWR_N : out slbit; -- fx2: write enable (act.low) O_FX2_SLOE_N : out slbit; -- fx2: output enable (act.low) O_FX2_PKTEND_N : out slbit; -- fx2: packet end (act.low) IO_FX2_DATA : inout slv8 -- fx2: data lines ); end sys_w11a_n3; architecture syn of sys_w11a_n3 is signal CLK : slbit := '0'; signal RXD : slbit := '1'; signal TXD : slbit := '0'; signal RTS_N : slbit := '0'; signal CTS_N : slbit := '0'; signal SWI : slv8 := (others=>'0'); signal BTN : slv5 := (others=>'0'); signal LED : slv8 := (others=>'0'); signal DSP_DAT : slv16 := (others=>'0'); signal DSP_DP : slv4 := (others=>'0'); signal RB_LAM : slv16 := (others=>'0'); signal RB_STAT : slv3 := (others=>'0'); signal RLB_MONI : rlb_moni_type := rlb_moni_init; signal SER_MONI : serport_moni_type := serport_moni_init; signal FX2_MONI : fx2ctl_moni_type := fx2ctl_moni_init; signal RB_MREQ : rb_mreq_type := rb_mreq_init; signal RB_SRES : rb_sres_type := rb_sres_init; signal RB_SRES_CPU : rb_sres_type := rb_sres_init; signal RB_SRES_IBD : rb_sres_type := rb_sres_init; signal RB_SRES_HIO : rb_sres_type := rb_sres_init; signal RESET : slbit := '0'; signal CE_USEC : slbit := '0'; signal CE_MSEC : slbit := '0'; signal CPU_RESET : slbit := '0'; signal CP_CNTL : cp_cntl_type := cp_cntl_init; signal CP_ADDR : cp_addr_type := cp_addr_init; signal CP_DIN : slv16 := (others=>'0'); signal CP_STAT : cp_stat_type := cp_stat_init; signal CP_DOUT : slv16 := (others=>'0'); signal EI_PRI : slv3 := (others=>'0'); signal EI_VECT : slv9_2 := (others=>'0'); signal EI_ACKM : slbit := '0'; signal EM_MREQ : em_mreq_type := em_mreq_init; signal EM_SRES : em_sres_type := em_sres_init; signal HM_ENA : slbit := '0'; signal MEM70_FMISS : slbit := '0'; signal CACHE_FMISS : slbit := '0'; signal CACHE_CHIT : slbit := '0'; signal MEM_REQ : slbit := '0'; signal MEM_WE : slbit := '0'; signal MEM_BUSY : slbit := '0'; signal MEM_ACK_R : slbit := '0'; signal MEM_ACT_R : slbit := '0'; signal MEM_ACT_W : slbit := '0'; signal MEM_ADDR : slv20 := (others=>'0'); signal MEM_BE : slv4 := (others=>'0'); signal MEM_DI : slv32 := (others=>'0'); signal MEM_DO : slv32 := (others=>'0'); signal MEM_ADDR_EXT : slv22 := (others=>'0'); signal BRESET : slbit := '0'; signal IB_MREQ : ib_mreq_type := ib_mreq_init; signal IB_SRES : ib_sres_type := ib_sres_init; signal IB_SRES_MEM70 : ib_sres_type := ib_sres_init; signal IB_SRES_IBDR : ib_sres_type := ib_sres_init; signal DM_STAT_DP : dm_stat_dp_type := dm_stat_dp_init; signal DM_STAT_VM : dm_stat_vm_type := dm_stat_vm_init; signal DM_STAT_CO : dm_stat_co_type := dm_stat_co_init; signal DM_STAT_SY : dm_stat_sy_type := dm_stat_sy_init; signal DISPREG : slv16 := (others=>'0'); constant rbaddr_core0 : slv8 := "00000000"; constant rbaddr_ibus : slv8 := "10000000"; constant rbaddr_hio : slv8 := "11000000"; begin assert (sys_conf_clksys mod 1000000) = 0 report "assert sys_conf_clksys on MHz grid" severity failure; GEN_CLKSYS : s6_cmt_sfs generic map ( VCO_DIVIDE => sys_conf_clksys_vcodivide, VCO_MULTIPLY => sys_conf_clksys_vcomultiply, OUT_DIVIDE => sys_conf_clksys_outdivide, CLKIN_PERIOD => 10.0, CLKIN_JITTER => 0.01, STARTUP_WAIT => false, GEN_TYPE => sys_conf_clksys_gentype) port map ( CLKIN => I_CLK100, CLKFX => CLK, LOCKED => open ); CLKDIV : clkdivce generic map ( CDUWIDTH => 7, USECDIV => sys_conf_clksys_mhz, MSECDIV => 1000) port map ( CLK => CLK, CE_USEC => CE_USEC, CE_MSEC => CE_MSEC ); IOB_RS232 : bp_rs232_2l4l_iob port map ( CLK => CLK, RESET => '0', SEL => SWI(0), RXD => RXD, TXD => TXD, CTS_N => CTS_N, RTS_N => RTS_N, I_RXD0 => I_RXD, O_TXD0 => O_TXD, I_RXD1 => I_FUSP_RXD, O_TXD1 => O_FUSP_TXD, I_CTS1_N => I_FUSP_CTS_N, O_RTS1_N => O_FUSP_RTS_N ); HIO : sn_humanio_rbus generic map ( BWIDTH => 5, DEBOUNCE => sys_conf_hio_debounce, RB_ADDR => rbaddr_hio) port map ( CLK => CLK, RESET => RESET, CE_MSEC => CE_MSEC, RB_MREQ => RB_MREQ, RB_SRES => RB_SRES_HIO, SWI => SWI, BTN => BTN, LED => LED, DSP_DAT => DSP_DAT, DSP_DP => DSP_DP, I_SWI => I_SWI, I_BTN => I_BTN, O_LED => O_LED, O_ANO_N => O_ANO_N, O_SEG_N => O_SEG_N ); RLINK : rlink_sp1c_fx2 generic map ( ATOWIDTH => 7, -- 128 cycles access timeout ITOWIDTH => 6, -- 64 periods max idle timeout CPREF => c_rlink_cpref, IFAWIDTH => 5, -- 32 word input fifo OFAWIDTH => 5, -- 32 word output fifo PETOWIDTH => sys_conf_fx2_petowidth, CCWIDTH => sys_conf_fx2_ccwidth, ENAPIN_RLMON => sbcntl_sbf_rlmon, ENAPIN_RBMON => sbcntl_sbf_rbmon, CDWIDTH => 13, CDINIT => sys_conf_ser2rri_cdinit) port map ( CLK => CLK, CE_USEC => CE_USEC, CE_MSEC => CE_MSEC, CE_INT => CE_MSEC, RESET => RESET, ENAXON => SWI(1), ENAESC => SWI(1), ENAFX2 => SWI(2), RXSD => RXD, TXSD => TXD, CTS_N => CTS_N, RTS_N => RTS_N, RB_MREQ => RB_MREQ, RB_SRES => RB_SRES, RB_LAM => RB_LAM, RB_STAT => RB_STAT, RL_MONI => open, RLB_MONI => RLB_MONI, SER_MONI => SER_MONI, FX2_MONI => FX2_MONI, 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 ); RB_SRES_OR : rb_sres_or_3 port map ( RB_SRES_1 => RB_SRES_CPU, RB_SRES_2 => RB_SRES_IBD, RB_SRES_3 => RB_SRES_HIO, RB_SRES_OR => RB_SRES ); RB2CP : pdp11_core_rbus generic map ( RB_ADDR_CORE => rbaddr_core0, RB_ADDR_IBUS => rbaddr_ibus) port map ( CLK => CLK, RESET => RESET, RB_MREQ => RB_MREQ, RB_SRES => RB_SRES_CPU, RB_STAT => RB_STAT, RB_LAM => RB_LAM(0), CPU_RESET => CPU_RESET, CP_CNTL => CP_CNTL, CP_ADDR => CP_ADDR, CP_DIN => CP_DIN, CP_STAT => CP_STAT, CP_DOUT => CP_DOUT ); CORE : pdp11_core port map ( CLK => CLK, RESET => CPU_RESET, CP_CNTL => CP_CNTL, CP_ADDR => CP_ADDR, CP_DIN => CP_DIN, CP_STAT => CP_STAT, CP_DOUT => CP_DOUT, EI_PRI => EI_PRI, EI_VECT => EI_VECT, EI_ACKM => EI_ACKM, EM_MREQ => EM_MREQ, EM_SRES => EM_SRES, BRESET => BRESET, IB_MREQ_M => IB_MREQ, IB_SRES_M => IB_SRES, DM_STAT_DP => DM_STAT_DP, DM_STAT_VM => DM_STAT_VM, DM_STAT_CO => DM_STAT_CO ); MEM_BRAM: if sys_conf_bram > 0 generate signal HM_VAL_BRAM : slbit := '0'; begin MEM : pdp11_bram generic map ( AWIDTH => sys_conf_bram_awidth) port map ( CLK => CLK, GRESET => CPU_RESET, EM_MREQ => EM_MREQ, EM_SRES => EM_SRES ); HM_VAL_BRAM <= not EM_MREQ.we; -- assume hit if read, miss if write MEM70: pdp11_mem70 port map ( CLK => CLK, CRESET => BRESET, HM_ENA => EM_MREQ.req, HM_VAL => HM_VAL_BRAM, CACHE_FMISS => MEM70_FMISS, IB_MREQ => IB_MREQ, IB_SRES => IB_SRES_MEM70 ); SRAM_PROT : nx_cram_dummy -- connect CRAM to protection dummy port map ( 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_PPCM_CE_N <= '1'; -- keep parallel PCM memory disabled O_PPCM_RST_N <= '1'; -- end generate MEM_BRAM; MEM_SRAM: if sys_conf_bram = 0 generate CACHE: pdp11_cache port map ( CLK => CLK, GRESET => CPU_RESET, EM_MREQ => EM_MREQ, EM_SRES => EM_SRES, FMISS => CACHE_FMISS, CHIT => CACHE_CHIT, MEM_REQ => MEM_REQ, MEM_WE => MEM_WE, MEM_BUSY => MEM_BUSY, MEM_ACK_R => MEM_ACK_R, MEM_ADDR => MEM_ADDR, MEM_BE => MEM_BE, MEM_DI => MEM_DI, MEM_DO => MEM_DO ); MEM70: pdp11_mem70 port map ( CLK => CLK, CRESET => BRESET, HM_ENA => HM_ENA, HM_VAL => CACHE_CHIT, CACHE_FMISS => MEM70_FMISS, IB_MREQ => IB_MREQ, IB_SRES => IB_SRES_MEM70 ); HM_ENA <= EM_SRES.ack_r or EM_SRES.ack_w; CACHE_FMISS <= MEM70_FMISS or sys_conf_cache_fmiss; MEM_ADDR_EXT <= "00" & MEM_ADDR; -- just use lower 4 MB (of 16 MB) SRAM_CTL: nx_cram_memctl_as generic map ( READ0DELAY => sys_conf_memctl_read0delay, READ1DELAY => sys_conf_memctl_read1delay, WRITEDELAY => sys_conf_memctl_writedelay) port map ( CLK => CLK, RESET => CPU_RESET, REQ => MEM_REQ, WE => MEM_WE, BUSY => MEM_BUSY, ACK_R => MEM_ACK_R, ACK_W => open, ACT_R => MEM_ACT_R, ACT_W => MEM_ACT_W, ADDR => MEM_ADDR_EXT, BE => MEM_BE, DI => MEM_DI, DO => MEM_DO, 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_PPCM_CE_N <= '1'; -- keep parallel PCM memory disabled O_PPCM_RST_N <= '1'; -- end generate MEM_SRAM; IB_SRES_OR : ib_sres_or_2 port map ( IB_SRES_1 => IB_SRES_MEM70, IB_SRES_2 => IB_SRES_IBDR, IB_SRES_OR => IB_SRES ); IBD_MINI : if false generate begin IBDR_SYS : ibdr_minisys port map ( CLK => CLK, CE_USEC => CE_USEC, CE_MSEC => CE_MSEC, RESET => CPU_RESET, BRESET => BRESET, RB_LAM => RB_LAM(15 downto 1), IB_MREQ => IB_MREQ, IB_SRES => IB_SRES_IBDR, EI_ACKM => EI_ACKM, EI_PRI => EI_PRI, EI_VECT => EI_VECT, DISPREG => DISPREG ); end generate IBD_MINI; IBD_MAXI : if true generate begin IBDR_SYS : ibdr_maxisys port map ( CLK => CLK, CE_USEC => CE_USEC, CE_MSEC => CE_MSEC, RESET => CPU_RESET, BRESET => BRESET, RB_LAM => RB_LAM(15 downto 1), IB_MREQ => IB_MREQ, IB_SRES => IB_SRES_IBDR, EI_ACKM => EI_ACKM, EI_PRI => EI_PRI, EI_VECT => EI_VECT, DISPREG => DISPREG ); end generate IBD_MAXI; IOLEDS : ioleds_sp1c_fx2 port map ( CLK => CLK, CE_USEC => CE_USEC, RESET => CPU_RESET, ENAFX2 => SWI(2), RB_SRES => RB_SRES, RLB_MONI => RLB_MONI, SER_MONI => SER_MONI, IOLEDS => DSP_DP ); DSP_DAT(15 downto 0) <= DISPREG; proc_led: process (MEM_ACT_W, MEM_ACT_R, CP_STAT, DM_STAT_DP.psw) variable iled : slv8 := (others=>'0'); begin iled := (others=>'0'); iled(7) := MEM_ACT_W; iled(6) := MEM_ACT_R; iled(5) := CP_STAT.cmdbusy; if CP_STAT.cpugo = '1' then case DM_STAT_DP.psw.cmode is when c_psw_kmode => if CP_STAT.cpuwait = '1' then iled(2) := '1'; elsif unsigned(DM_STAT_DP.psw.pri) = 0 then iled(3) := '1'; else iled(4) := '1'; end if; when c_psw_smode => iled(1) := '1'; when c_psw_umode => iled(0) := '1'; when others => null; end case; else iled(4) := '1'; iled(3 downto 0) := CP_STAT.cpurust; end if; LED <= iled; end process; -- synthesis translate_off DM_STAT_SY.emmreq <= EM_MREQ; DM_STAT_SY.emsres <= EM_SRES; DM_STAT_SY.chit <= CACHE_CHIT; TMU : pdp11_tmu_sb generic map ( ENAPIN => 13) port map ( CLK => CLK, DM_STAT_DP => DM_STAT_DP, DM_STAT_VM => DM_STAT_VM, DM_STAT_CO => DM_STAT_CO, DM_STAT_SY => DM_STAT_SY ); -- synthesis translate_on end syn;
Go to most recent revision | Compare with Previous | Blame | View Log