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add initial mega60k support
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@nand2mario
nand2mario committed Nov 16, 2024
1 parent f086f2a commit 6323586
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18 changes: 17 additions & 1 deletion build.tcl
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@@ -1,6 +1,6 @@
if {$argc == 0} {
puts "Usage: $argv0 <device> <controller>"
puts " device: nano20k, primer25k"
puts " device: nano20k, primer25k, mega60k"
puts " controller: snes, ds2"
puts "Note: nano20k supports both controllers simultaneously, so build with just: gw_sh build.tcl nano20k"
exit 1
Expand Down Expand Up @@ -37,6 +37,22 @@ if {$dev eq "nano20k"} {
add_file -type verilog "src/primer25k/gowin_pll_hdmi.v"
add_file -type verilog "src/primer25k/gowin_pll_nes.v"
set_option -output_base_name nestang_${dev}_${controller}
} elseif {$dev eq "mega60k"} {
set_device GW5AT-LV60PG484AC1/10 -device_version B
if {$controller eq "snes"} {
add_file src/mega60k/config_snescontroller.v
add_file -type cst "src/mega60k/nestang_snescontroller.cst"
} elseif {$controller eq "ds2"} {
add_file src/mega60k/config.v
add_file -type cst "src/mega60k/nestang.cst"
} else {
error "Unknown controller $controller"
}
# mega60k uses the same PLL as primer25k
add_file -type verilog "src/primer25k/gowin_pll_27.v"
add_file -type verilog "src/primer25k/gowin_pll_hdmi.v"
add_file -type verilog "src/primer25k/gowin_pll_nes.v"
set_option -output_base_name nestang_${dev}_${controller}
} else {
error "Unknown device $dev"
}
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92 changes: 92 additions & 0 deletions impl/nestang_mega60k_process_config.json
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{
"BACKGROUND_PROGRAMMING" : "off",
"COMPRESS" : false,
"CPU" : true,
"CRC_CHECK" : true,
"Clock_Route_Order" : 0,
"Convert_SDP32_36_to_SDP16_18" : true,
"Correct_Hold_Violation" : true,
"DONE" : false,
"DOWNLOAD_SPEED" : "default",
"Disable_Insert_Pad" : false,
"ENABLE_CTP" : false,
"ENABLE_MERGE_MODE" : false,
"ENCRYPTION_KEY" : false,
"ENCRYPTION_KEY_TEXT" : "00000000000000000000000000000000",
"ERROR_DECTION_AND_CORRECTION" : false,
"ERROR_DECTION_ONLY" : false,
"ERROR_INJECTION" : false,
"EXTERNAL_MASTER_CONFIG_CLOCK" : false,
"Enable_DSRM" : false,
"FORMAT" : "binary",
"FREQUENCY_DIVIDER" : "1",
"Generate_Constraint_File_of_Ports" : false,
"Generate_IBIS_File" : false,
"Generate_Plain_Text_Timing_Report" : false,
"Generate_Post_PNR_Simulation_Model_File" : false,
"Generate_Post_Place_File" : false,
"Generate_SDF_File" : false,
"Generate_VHDL_Post_PNR_Simulation_Model_File" : false,
"Global_Freq" : "default",
"GwSyn_Loop_Limit" : 2000,
"HOTBOOT" : false,
"I2C" : false,
"I2C_SLAVE_ADDR" : "00",
"INCREMENTAL_PLACE_AND_ROUTING" : "0",
"INCREMENTAL_PLACE_ONLY" : "0",
"IncludePath" : [

],
"Incremental_Compile" : "",
"Initialize_Primitives" : false,
"JTAG" : false,
"MODE_IO" : false,
"MSPI" : true,
"MSPI_JUMP" : false,
"MULTIBOOT_ADDRESS_WIDTH" : "24",
"MULTIBOOT_MODE" : "Normal",
"MULTIBOOT_SPI_FLASH_ADDRESS" : "000000",
"MULTIJUMP_ADDRESS_WIDTH" : "24",
"MULTIJUMP_MODE" : "Normal",
"MULTIJUMP_SPI_FLASH_ADDRESS" : "000000",
"Multi_Boot" : false,
"OUTPUT_BASE_NAME" : "nes",
"POWER_ON_RESET_MONITOR" : true,
"PRINT_BSRAM_VALUE" : true,
"PROGRAM_DONE_BYPASS" : false,
"PlaceInRegToIob" : true,
"PlaceIoRegToIob" : true,
"PlaceOutRegToIob" : true,
"Place_Option" : "2",
"Process_Configuration_Verion" : "1.0",
"Promote_Physical_Constraint_Warning_to_Error" : true,
"READY" : false,
"RECONFIG_N" : false,
"Ram_RW_Check" : true,
"Replicate_Resources" : false,
"Report_Auto-Placed_Io_Information" : false,
"Route_Maxfan" : 23,
"Route_Option" : "0",
"Run_Timing_Driven" : true,
"SECURE_MODE" : false,
"SECURITY_BIT" : true,
"SEU_HANDLER" : false,
"SEU_HANDLER_CHECKSUM" : false,
"SEU_HANDLER_MODE" : "auto",
"SSPI" : true,
"STOP_SEU_HANDLER" : false,
"Show_All_Warnings" : false,
"Synthesize_tool" : "GowinSyn",
"TclPre" : "",
"TopModule" : "nestang_top",
"USERCODE" : "default",
"Unused_Pin" : "As_input_tri_stated_with_pull_up",
"VCC" : "0.9",
"VCCAUX" : "3.3",
"VCCX" : "3.3",
"VHDL_Standard" : "VHDL_Std_1993",
"Verilog_Standard" : "Vlg_Std_Sysv2017",
"WAKE_UP" : "0",
"show_all_warnings" : false,
"turn_off_bg" : false
}
70 changes: 70 additions & 0 deletions nestang_mega60k.gprj
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<?xml version="1" encoding="UTF-8"?>
<!DOCTYPE gowin-fpga-project>
<Project>
<Template>FPGA</Template>
<Version>5</Version>
<Device name="GW5AT-60B" pn="GW5AT-LV60PG484AC1/I0">gw5at60b-002</Device>
<FileList>
<File path="src/EEPROM_24C0x.sv" type="file.verilog" enable="1"/>
<File path="src/apu.v" type="file.verilog" enable="1"/>
<File path="src/autofire.v" type="file.verilog" enable="1"/>
<File path="src/cart.sv" type="file.verilog" enable="1"/>
<File path="src/compat.v" type="file.verilog" enable="1"/>
<File path="src/controller_ds2.sv" type="file.verilog" enable="1"/>
<File path="src/controller_snes.v" type="file.verilog" enable="1"/>
<File path="src/dpram.v" type="file.verilog" enable="1"/>
<File path="src/dualshock_controller.v" type="file.verilog" enable="1"/>
<File path="src/game_loader.v" type="file.verilog" enable="1"/>
<File path="src/hdmi2/audio_clock_regeneration_packet.sv" type="file.verilog" enable="1"/>
<File path="src/hdmi2/audio_info_frame.sv" type="file.verilog" enable="1"/>
<File path="src/hdmi2/audio_sample_packet.sv" type="file.verilog" enable="1"/>
<File path="src/hdmi2/auxiliary_video_information_info_frame.sv" type="file.verilog" enable="1"/>
<File path="src/hdmi2/hdmi.sv" type="file.verilog" enable="1"/>
<File path="src/hdmi2/packet_assembler.sv" type="file.verilog" enable="1"/>
<File path="src/hdmi2/packet_picker.sv" type="file.verilog" enable="1"/>
<File path="src/hdmi2/serializer.sv" type="file.verilog" enable="1"/>
<File path="src/hdmi2/source_product_description_info_frame.sv" type="file.verilog" enable="1"/>
<File path="src/hdmi2/tmds_channel.sv" type="file.verilog" enable="1"/>
<File path="src/hw_uart.v" type="file.verilog" enable="1"/>
<File path="src/iosys/gowin_dpb_menu.v" type="file.verilog" enable="1"/>
<File path="src/iosys/iosys.v" type="file.verilog" enable="1"/>
<File path="src/iosys/picorv32.v" type="file.verilog" enable="1"/>
<File path="src/iosys/simplespimaster.v" type="file.verilog" enable="1"/>
<File path="src/iosys/simpleuart.v" type="file.verilog" enable="1"/>
<File path="src/iosys/spi_master.v" type="file.verilog" enable="1"/>
<File path="src/iosys/spiflash.v" type="file.verilog" enable="1"/>
<File path="src/iosys/textdisp.v" type="file.verilog" enable="1"/>
<File path="src/mappers/JYCompany.sv" type="file.verilog" enable="1"/>
<File path="src/mappers/MMC1.sv" type="file.verilog" enable="1"/>
<File path="src/mappers/MMC2.sv" type="file.verilog" enable="1"/>
<File path="src/mappers/MMC3.sv" type="file.verilog" enable="1"/>
<File path="src/mappers/MMC5.sv" type="file.verilog" enable="1"/>
<File path="src/mappers/Namco.sv" type="file.verilog" enable="1"/>
<File path="src/mappers/Sachen.sv" type="file.verilog" enable="1"/>
<File path="src/mappers/Sunsoft.sv" type="file.verilog" enable="1"/>
<File path="src/mappers/generic.sv" type="file.verilog" enable="1"/>
<File path="src/mappers/iir_filter.v" type="file.verilog" enable="1"/>
<File path="src/mappers/misc.sv" type="file.verilog" enable="1"/>
<File path="src/mega60k/config.v" type="file.verilog" enable="1"/>
<File path="src/nes.v" type="file.verilog" enable="1"/>
<File path="src/nes2hdmi.sv" type="file.verilog" enable="1"/>
<File path="src/nestang_top.sv" type="file.verilog" enable="1"/>
<File path="src/ppu.v" type="file.verilog" enable="1"/>
<File path="src/primer25k/gowin_pll_27.v" type="file.verilog" enable="1"/>
<File path="src/primer25k/gowin_pll_hdmi.v" type="file.verilog" enable="1"/>
<File path="src/primer25k/gowin_pll_nes.v" type="file.verilog" enable="1"/>
<File path="src/sdram_nes.v" type="file.verilog" enable="1"/>
<File path="src/t65/T65.v" type="file.verilog" enable="1"/>
<File path="src/t65/T65_ALU.v" type="file.verilog" enable="1"/>
<File path="src/t65/T65_MCode.v" type="file.verilog" enable="1"/>
<File path="src/t65/T65_Pack.v" type="file.verilog" enable="1"/>
<File path="src/uart_tx_V2.v" type="file.verilog" enable="1"/>
<File path="src/usb_hid_host.v" type="file.verilog" enable="1"/>
<File path="src/usb_hid_host_rom.v" type="file.verilog" enable="1"/>
<File path="src/mega60k/nestang.cst" type="file.cst" enable="1"/>
<File path="src/primer25k/nestang.cst" type="file.cst" enable="0"/>
<File path="src/primer25k/nestang_snescontroller.cst" type="file.cst" enable="0"/>
<File path="src/primer25k/nestang.sdc" type="file.sdc" enable="1"/>
<File path="src/nes.gao" type="file.gao" enable="0"/>
</FileList>
</Project>
1 change: 1 addition & 0 deletions src/mappers/MMC5.sv
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Expand Up @@ -82,6 +82,7 @@ reg [7:0] multiplier_1;
reg [7:0] multiplier_2;
wire [15:0] multiply_result = multiplier_1 * multiplier_2;

// nand2mario FIXME: this uses registers instead of BRAM on 1.9.10_03
reg [7:0] expansion_ram[0:1023]; // Block RAM, otherwise we need to time multiplex..
reg [7:0] last_read_ram;
reg [7:0] last_read_exattr;
Expand Down
16 changes: 16 additions & 0 deletions src/mega60k/config.v
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@@ -0,0 +1,16 @@
`define RES_720P
`define GW_IDE
`define MEGA60K
`define PRIMER

`define CONTROLLER_DS2

package configPackage;

// Tang SDRAM v1.2: 2B * 8K * 512 * 4 = 32MB
localparam SDRAM_DATA_WIDTH = 16; // 2 bytes per word
localparam SDRAM_ROW_WIDTH = 13; // 8K rows
localparam SDRAM_COL_WIDTH = 9; // 512 cols
localparam SDRAM_BANK_WIDTH = 2; // 4 banks

endpackage
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