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MSU1 data support, clock measurement

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This commit is contained in:
ikari 2010-12-22 03:59:56 +01:00
parent 75a4546c5c
commit b28cf99cf3
9 changed files with 139 additions and 320 deletions
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56
verilog/sd2snes/avr_cmd.v
View File

@ -67,9 +67,24 @@ module mcu_cmd(
output msu_status_reset_we,
input [31:0] msu_addressrq,
input [15:0] msu_trackrq,
input [7:0] msu_volumerq
input [7:0] msu_volumerq,
output [13:0] msu_ptr_out,
output msu_reset_out,
// SNES sync/clk
input snes_sysclk
);
wire [31:0] snes_sysclk_freq;
clk_test snes_clk_test (
.clk(clk),
.sysclk(snes_sysclk),
.snes_sysclk_freq(snes_sysclk_freq)
);
reg [3:0] MAPPER_BUF;
reg [3:0] SRAM_SIZE_BUF;
reg MCU_READ_BUF;
@ -81,9 +96,14 @@ reg DAC_VOL_LATCH_BUF;
reg DAC_PLAY_OUT_BUF;
reg DAC_RESET_OUT_BUF;
reg [13:0] MSU_ADDR_OUT_BUF;
reg [13:0] MSU_PTR_OUT_BUF;
reg [5:0] msu_status_set_out_buf;
reg [5:0] msu_status_reset_out_buf;
reg msu_status_reset_we_buf;
reg MSU_RESET_OUT_BUF;
reg [31:0] SNES_SYSCLK_FREQ_BUF;
reg [7:0] MCU_DATA_OUT_BUF;
reg [7:0] MCU_DATA_IN_BUF;
reg [1:0] mcu_nextaddr_buf;
@ -248,6 +268,19 @@ always @(posedge clk) begin
32'h3:
DAC_RESET_OUT_BUF <= 1'b0;
endcase
8'he4: // reset MSU read buffer pointer
case (spi_byte_cnt)
32'h2: begin
MSU_PTR_OUT_BUF[13:8] <= param_data[5:0];
MSU_PTR_OUT_BUF[7:0] <= 8'h0;
end
32'h3: begin
MSU_PTR_OUT_BUF[7:0] <= param_data;
MSU_RESET_OUT_BUF <= 1'b1;
end
32'h4:
MSU_RESET_OUT_BUF <= 1'b0;
endcase
endcase
end
if (SD_DMA_NEXTADDR | (mcu_nextaddr & (cmd_data[7:5] == 3'h4) && (cmd_data[0]) && (spi_byte_cnt > (32'h1+cmd_data[4])))) begin
@ -284,13 +317,26 @@ always @(posedge clk) begin
endcase
else if (cmd_data[7:0] == 8'hF3)
case (spi_byte_cnt)
23'h1:
32'h1:
MCU_DATA_IN_BUF <= msu_trackrq[15:8];
23'h2:
32'h2:
MCU_DATA_IN_BUF <= msu_trackrq[7:0];
endcase
else if (cmd_data[7:0] == 8'hF4)
MCU_DATA_IN_BUF <= msu_volumerq;
else if (cmd_data[7:0] == 8'hFE)
case (spi_byte_cnt)
32'h1:
SNES_SYSCLK_FREQ_BUF <= snes_sysclk_freq;
32'h2:
MCU_DATA_IN_BUF <= SNES_SYSCLK_FREQ_BUF[31:24];
32'h3:
MCU_DATA_IN_BUF <= SNES_SYSCLK_FREQ_BUF[23:16];
32'h4:
MCU_DATA_IN_BUF <= SNES_SYSCLK_FREQ_BUF[15:8];
32'h5:
MCU_DATA_IN_BUF <= SNES_SYSCLK_FREQ_BUF[7:0];
endcase
else if (cmd_data[7:0] == 8'hFF)
MCU_DATA_IN_BUF <= param_data;
else if (cmd_data[7:4] == 4'h8)
@ -339,10 +385,12 @@ assign dac_reset_out = DAC_RESET_OUT_BUF;
assign msu_status_reset_we = msu_status_reset_we_buf;
assign msu_status_reset_out = msu_status_reset_out_buf;
assign msu_status_set_out = msu_status_set_out_buf;
assign msu_reset_out = MSU_RESET_OUT_BUF;
assign msu_ptr_out = MSU_PTR_OUT_BUF;
assign mcu_data_out = SD_DMA_STATUS ? SD_DMA_SRAM_DATA : MCU_DATA_OUT_BUF;
assign mcu_mapper = MAPPER_BUF;
assign mcu_sram_size = SRAM_SIZE_BUF;
assign rom_mask_out = ROM_MASK;
assign saveram_mask_out = SAVERAM_MASK;
endmodule

52
verilog/sd2snes/clk_test.v Normal file
View File

@ -0,0 +1,52 @@
`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company:
// Engineer:
//
// Create Date: 22:40:46 12/20/2010
// Design Name:
// Module Name: clk_test
// Project Name:
// Target Devices:
// Tool versions:
// Description:
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
//
//////////////////////////////////////////////////////////////////////////////////
module clk_test(
input clk,
input sysclk,
output [31:0] snes_sysclk_freq
);
reg [31:0] snes_sysclk_freq_r;
assign snes_sysclk_freq = snes_sysclk_freq_r;
reg [31:0] sysclk_counter;
reg [31:0] sysclk_value;
initial snes_sysclk_freq_r = 32'hFFFFFFFF;
initial sysclk_counter = 0;
initial sysclk_value = 0;
reg [1:0] sysclk_sreg;
always @(posedge clk) sysclk_sreg <= {sysclk_sreg[0], sysclk};
wire sysclk_rising = (sysclk_sreg == 2'b01);
always @(posedge clk) begin
if(sysclk_counter < 90315789) begin
sysclk_counter <= sysclk_counter + 1;
if(sysclk_rising) sysclk_value <= sysclk_value + 1;
end else begin
snes_sysclk_freq_r <= sysclk_value;
sysclk_counter <= 0;
sysclk_value <= 0;
end
end
endmodule

2
verilog/sd2snes/dac_test.v
View File

@ -90,7 +90,7 @@ initial begin
vol_valid = 1'b0;
vol_latch_reg = 1'b0;
vol_reg = 8'h0;
vol_target_reg = 8'h0;
vol_target_reg = 8'hff;
samples <= 16'h0;
end

307
verilog/sd2snes/ipcore_dir/dac_buf.xise
View File

@ -36,330 +36,27 @@
</files>
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<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"/>
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<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 Programming 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 Fit" xil_pn:value="" xil_pn:valueState="default"/>
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<property xil_pn:name="Other Timing Report Command Line Options" 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="dac_buf" xil_pn:valueState="default"/>
<property xil_pn:name="Output Slew Rate" xil_pn:value="Fast" xil_pn:valueState="default"/>
<property xil_pn:name="Overwrite Compiled Libraries" xil_pn:value="false" xil_pn:valueState="default"/>
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<property xil_pn:name="Preferred Language" xil_pn:value="Verilog" xil_pn:valueState="default"/>
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<property xil_pn:name="Property Specification in Project File" xil_pn:value="Store all values" xil_pn:valueState="default"/>
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<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"/>
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<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"/>
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<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 DCM if SHUTDOWN &amp; AGHIGH performed" xil_pn:value="false" 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="Router Effort Level (Overrides Overall Level)" xil_pn:value="None" 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="Shift Register Extraction" xil_pn:value="true" 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 Packing" xil_pn:value="true" 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 Fit" 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="-4" xil_pn:valueState="non-default"/>
<property xil_pn:name="Starting Placer Cost Table (1-100) Map" xil_pn:value="1" xil_pn:valueState="default"/>
<property xil_pn:name="Starting Placer Cost Table (1-100) Par" 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="Timing Mode Map" xil_pn:value="Non Timing Driven" xil_pn:valueState="default"/>
<property xil_pn:name="Timing Mode Par" xil_pn:value="Performance Evaluation" xil_pn:valueState="default"/>
<property xil_pn:name="Timing Report Format" xil_pn:value="Summary" 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 I/O Pad Termination Mode" xil_pn:value="Keeper" 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 Clock Enable" xil_pn:value="Yes" 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 Fit" 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 Fit" 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 Data Gate" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="Use Direct Input for Input Registers" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="Use Global Clocks" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="Use Global Output Enables" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="Use Global Set/Reset" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="Use LOC Constraints" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="Use Location Constraints" xil_pn:value="Always" xil_pn:valueState="default"/>
<property xil_pn:name="Use Multi-level Logic Optimization" 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="Yes" xil_pn:valueState="default"/>
<property xil_pn:name="Use Synchronous Set" xil_pn:value="Yes" xil_pn:valueState="default"/>
<property xil_pn:name="Use Synthesis Constraints File" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="Use Timing Constraints" xil_pn:value="true" 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="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 2001 Xst" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="Verilog Macros" xil_pn:value="" xil_pn:valueState="default"/>
<property xil_pn:name="WYSIWYG" xil_pn:value="None" xil_pn:valueState="default"/>
<property xil_pn:name="Wait for DCI Match (Output Events) virtex2" xil_pn:value="Auto" xil_pn:valueState="default"/>
<property xil_pn:name="Wait for DLL Lock (Output Events)" xil_pn:value="Default (NoWait)" xil_pn:valueState="default"/>
<property xil_pn:name="Working Directory" xil_pn:value="." xil_pn:valueState="default"/>
<property xil_pn:name="Write Timing Constraints" xil_pn:value="false" xil_pn:valueState="default"/>
<property xil_pn:name="XOR Collapsing" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="XOR Preserve" xil_pn:value="true" xil_pn:valueState="default"/>
<property xil_pn:name="Working Directory" xil_pn:value="." xil_pn:valueState="non-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="dac_buf" xil_pn:valueState="non-default"/>
<property xil_pn:name="PROP_DevFamilyPMName" xil_pn:value="spartan3" xil_pn:valueState="default"/>
<property xil_pn:name="PROP_FPGAConfiguration" xil_pn:value="FPGAConfiguration" xil_pn:valueState="default"/>
<property xil_pn:name="PROP_PostFitSimTop" xil_pn:value="" 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="2010-12-14T01:26:30" xil_pn:valueState="non-default"/>
<property xil_pn:name="PROP_intWbtProjectID" xil_pn:value="AC42E9870C4554A48B6E2A44C43B2F94" xil_pn:valueState="non-default"/>
<property xil_pn:name="PROP_intWorkingDirLocWRTProjDir" xil_pn:value="Same" xil_pn:valueState="non-default"/>

3
verilog/sd2snes/main.ucf
View File

@ -510,3 +510,6 @@ NET "SD_DAT[0]" IOSTANDARD = LVCMOS33;
NET "SD_DAT[1]" IOSTANDARD = LVCMOS33;
NET "SD_DAT[2]" IOSTANDARD = LVCMOS33;
NET "SD_DAT[3]" IOSTANDARD = LVCMOS33;
NET "SNES_SYSCLK" LOC = P180;
NET "SNES_SYSCLK" IOSTANDARD = LVCMOS33;

17
verilog/sd2snes/main.v
View File

@ -34,6 +34,7 @@ module main(
output SNES_DATABUS_OE,
output SNES_DATABUS_DIR,
output IRQ_DIR,
input SNES_SYSCLK,
/* SRAM signals */
inout [15:0] ROM_DATA,
@ -89,7 +90,8 @@ wire [7:0] msu_volumerq_out;
wire [6:0] msu_status_out;
wire [31:0] msu_addressrq_out;
wire [15:0] msu_trackrq_out;
wire [13:0] msu_addr;
wire [13:0] msu_write_addr;
wire [13:0] msu_ptr_addr;
wire [7:0] MSU_SNES_DATA_IN;
wire [7:0] MSU_SNES_DATA_OUT;
wire [5:0] msu_status_reset_bits;
@ -128,7 +130,7 @@ dac_test snes_dac_test(.clkin(CLK2),
msu snes_msu (
.clkin(CLK2),
.enable(msu_enable),
.pgm_address(msu_addr),
.pgm_address(msu_write_addr),
.pgm_data(SD_DMA_SRAM_DATA),
.pgm_we(SD_DMA_TGT==2'b10 ? SD_DMA_SRAM_WE : 1'b1),
.reg_addr(SNES_ADDR),
@ -143,7 +145,9 @@ msu snes_msu (
.track_out(msu_trackrq_out),
.status_reset_bits(msu_status_reset_bits),
.status_set_bits(msu_status_set_bits),
.status_reset_we(msu_status_reset_we)
.status_reset_we(msu_status_reset_we),
.msu_address_ext(msu_ptr_addr),
.msu_address_ext_write(msu_addr_reset)
);
spi snes_spi(.clk(CLK2),
@ -164,6 +168,7 @@ spi snes_spi(.clk(CLK2),
mcu_cmd snes_mcu_cmd(
.clk(CLK2),
.snes_sysclk(SNES_SYSCLK),
.cmd_ready(spi_cmd_ready),
.param_ready(spi_param_ready),
.cmd_data(spi_cmd_data),
@ -197,14 +202,16 @@ mcu_cmd snes_mcu_cmd(
// .dac_volume_latch_out(dac_vol_latch),
.dac_play_out(dac_play),
.dac_reset_out(dac_reset),
.msu_addr_out(msu_addr),
.msu_addr_out(msu_write_addr),
.MSU_STATUS(msu_status_out),
.msu_status_reset_out(msu_status_reset_bits),
.msu_status_set_out(msu_status_set_bits),
.msu_status_reset_we(msu_status_reset_we),
.msu_volumerq(msu_volumerq_out),
.msu_addressrq(msu_addressrq_out),
.msu_trackrq(msu_trackrq_out)
.msu_trackrq(msu_trackrq_out),
.msu_ptr_out(msu_ptr_addr),
.msu_reset_out(msu_addr_reset)
);
// dcm1: dfs 4x

16
verilog/sd2snes/msu.v
View File

@ -36,7 +36,9 @@ module msu(
output [15:0] track_out,
input [5:0] status_reset_bits,
input [5:0] status_set_bits,
input status_reset_we
input status_reset_we,
input [13:0] msu_address_ext,
input msu_address_ext_write
);
reg [1:0] status_reset_we_r;
@ -49,9 +51,13 @@ wire [13:0] msu_address = msu_address_r;
wire [7:0] msu_data;
reg [7:0] msu_data_r;
reg [1:0] msu_address_ext_write_sreg;
always @(posedge clkin) msu_address_ext_write_sreg <= {msu_address_ext_write_sreg[0], msu_address_ext_write};
wire msu_address_ext_write_rising = (msu_address_ext_write_sreg[1:0] == 2'b01);
reg [5:0] reg_oe_sreg;
always @(posedge clkin) reg_oe_sreg <= {reg_oe_sreg[4:0], reg_oe};
wire reg_oe_falling = (reg_oe_sreg[5:0] == 6'b111110);
wire reg_oe_falling = (reg_oe_sreg[5:0] == 6'b100000);
wire reg_oe_rising = (reg_oe_sreg[5:0] == 6'b000001);
reg [1:0] reg_we_sreg;
@ -86,7 +92,7 @@ end
assign status_out = {msu_address_r[13],
audio_start_r, data_start_r, volume_start_r, audio_ctrl_r, ctrl_start_r};
initial msu_address_r = 14'h0000;
initial msu_address_r = 14'h1234;
msu_databuf snes_msu_databuf (
.clka(clkin),
@ -165,7 +171,9 @@ always @(posedge clkin) begin
end
always @(posedge clkin) begin
if(reg_oe_falling && enable && reg_addr == 3'h1) begin
if(msu_address_ext_write_rising)
msu_address_r <= msu_address_ext;
else if(enable && reg_addr == 3'h1 && reg_oe_falling) begin
msu_address_r <= msu_address_r + 1;
msu_data_r <= msu_data;
end

4
verilog/sd2snes/sd2snes.xise
View File

@ -62,6 +62,10 @@
<association xil_pn:name="BehavioralSimulation"/>
<association xil_pn:name="Implementation"/>
</file>
<file xil_pn:name="clk_test.v" xil_pn:type="FILE_VERILOG">
<association xil_pn:name="BehavioralSimulation"/>
<association xil_pn:name="Implementation"/>
</file>
<file xil_pn:name="ipcore_dir/dac_buf.xise" xil_pn:type="FILE_COREGENISE">
<association xil_pn:name="Implementation"/>
</file>

2
verilog/sd2snes/sd_dma.v
View File

@ -118,7 +118,7 @@ always @(posedge CLK) begin
SD_DMA_NEXTADDRr <= 1'b0;
// 3'h2:
3'h3:
if(cyclecnt>=SD_DMA_STARTr && cyclecnt <= SD_DMA_ENDr) SD_DMA_SRAM_WEr <= 1'b0;
if(cyclecnt>=SD_DMA_STARTr && cyclecnt < SD_DMA_ENDr) SD_DMA_SRAM_WEr <= 1'b0;
3'h4:
SD_DMA_SRAM_DATAr[3:0] <= SD_DAT;
// 3'h5: