`timescale 1 ns / 1 ps

module pl_top#
	(
		parameter	VERSION 				= 32'h10000001	,		
		parameter	CLK_FREQ 				= 100			,
		parameter	CLK_PERIOD				= 10			,
		
		//-----------------------------------------	RHS2116
		parameter	RSH2116_QTY				= 4				,
		parameter	RHS2116_SPI_CLK_DIV		= 4				,
		parameter	RSH2116_SPI_PERIOD		= 1500			,
		
		//-----------------------------------------	ADS1299
		parameter	ADS1299_QTY				= 8				,
		parameter	ADS1299_CH				= 8				,
		parameter	ADS1299_SPI_CLK_DIV		= 4				,
		parameter	ADS1299_SPI_QTY			= 4				,
		parameter	ADS1299_SPI_SLAVE_QTY	= 2				,
		parameter	ADS1299_SPI_PERIOD		= 2000
	)
	(
		input						clk						,
		input						rst_n					,

		//---------------------------------------------	PS:
		input	[12:0]				bram_stim_addr			,
		input 						bram_stim_clk			,
		input 	[31:0]				bram_stim_din			,
		output 	[31:0]				bram_stim_dout			,
		input 						bram_stim_en			,
		input 						bram_stim_rst			,
        input   [ 3:0]              bram_stim_we			,

        input   [12:0]              bram_eeg_addr			,
        input                       bram_eeg_clk			,
        input   [31:0]              bram_eeg_din			,
        output  [31:0]              bram_eeg_dout			,
        input                       bram_eeg_en				,
        input                       bram_eeg_rst			,
        input   [ 3:0]              bram_eeg_we				,

        input   [12:0]              bram_emg_addr			,
        input                       bram_emg_clk			,
        input   [31:0]              bram_emg_din			,
        output  [31:0]              bram_emg_dout			,
        input                       bram_emg_en				,
        input                       bram_emg_rst			,
        input   [ 3:0]              bram_emg_we				,

        input   [12:0]              bram_accel_addr			,
        input                       bram_accel_clk			,
        input   [31:0]              bram_accel_din			,
        output  [31:0]              bram_accel_dout			,
        input                       bram_accel_en			,
        input                       bram_accel_rst			,
        input   [ 3:0]              bram_accel_we			,

        input   [12:0]              bram_msg_addr			,
        input                       bram_msg_clk			,
        input   [31:0]              bram_msg_din			,
        output  [31:0]              bram_msg_dout			,
        input                       bram_msg_en				,
        input                       bram_msg_rst			,
        input   [ 3:0]              bram_msg_we				,
	
		//---------------------------------------------	interrupt
		output                      stim_int				,
		output                      eeg_int					,
		output                      emg_int					,
		output                      accel_int				,
        
        input   [31:0]              m_axis_stim_tdata		,
        input                       m_axis_stim_tlast		,
        output                      m_axis_stim_tready		,
        input                       m_axis_stim_tvalid		,

        input                       m_axis_record_tfull		,
        output  [ 7:0]              m_axis_record_tdata		,
        output  [ 0:0]              m_axis_record_tkeep		,
        output                      m_axis_record_tlast		,
        input                       m_axis_record_tready	,
        output                      m_axis_record_tvalid	,
		
		//---------------------------------------------	RSH2116
		output	[RSH2116_QTY-1:0]	rsh2116_enable			,
		output	[RSH2116_QTY-1:0]	rsh2116_spi_cs			,
		output	[RSH2116_QTY-1:0]	rsh2116_spi_sclk		,
		output	[RSH2116_QTY-1:0]	rsh2116_spi_mosi		,
		input	[RSH2116_QTY-1:0]	rsh2116_spi_miso		,

		//---------------------------------------------	ADS1299 for EEG
		output	[ADS1299_QTY-1:0]	eeg_ads1299_spi_cs		,
		output	[          4-1:0]	eeg_ads1299_spi_sclk	,
		output	[          4-1:0]	eeg_ads1299_spi_mosi	,
		input	[          4-1:0]	eeg_ads1299_spi_miso	,
		input	[          4-1:0]	eeg_ads1299_drdy_n		,
		output						eeg_ads1299_start		,

		//---------------------------------------------	ADS1299 for EMG
		output						emg_ads1299_spi_cs		,
		output						emg_ads1299_spi_sclk	,
		output						emg_ads1299_spi_mosi	,
		input						emg_ads1299_spi_miso	,
		input						emg_ads1299_drdy_n		,
		output						emg_ads1299_start		,
		output						emg_ads1299_reset_n		,
		output						emg_ads1299_pwdn_n		,

		//------------------------------------------ device: MEMS
		output						accel_spi_cs			,
		output						accel_spi_sclk			,
		output						accel_spi_mosi			,
		input						accel_spi_miso			,
		input						accel_int0				,
		input						accel_int1				,

		//---------------------------------------------	ADG1414
		output						adg1414_spi_sync		,
		output						adg1414_spi_sclk		,
		output						adg1414_spi_mosi		,
		input						adg1414_spi_miso		,

		//---------------------------------------------	Trigger
		input						trigger_reset			,
		input	[32-1:0]			trigger_in				,
		output	[32-1:0]			trigger_out				,
		
		//---------------------------------------------	For developer
		output	[ 4-1:0]			debug_sig
	);
	
	//*****************************************************************************
	// Parameter definition
	//*****************************************************************************
	
	
	//*****************************************************************************
	// Internal register and wire declarations
	//*****************************************************************************
	wire	[32-1:0]			trigger_in_int		;
	wire	[32-1:0]			trigger_in_ext		;
	wire	[32-1:0]			axis_trigger_tdata	;
	wire						axis_trigger_tvalid	;
	wire						axis_trigger_tready	;

	wire	[32-1:0]			axis_eeg16_tdata	;
	wire						axis_eeg16_tlast	;
	wire						axis_eeg16_tready	;
	wire						axis_eeg16_tvalid	;
	
	wire	[32-1:0]			axis_eeg24_tdata	;
	wire						axis_eeg24_tlast	;
	wire						axis_eeg24_tready	;
	wire						axis_eeg24_tvalid	;
	
	wire	[32-1:0]			axis_emg_tdata		;
	wire						axis_emg_tlast		;
	wire						axis_emg_tready		;
	wire						axis_emg_tvalid		;

	wire	[48-1:0]			accel_data			;
	
	wire						sw_enable			;
	wire						sw_data_sel			;
	wire	[64-1:0]			sw_data_0			;
	wire	[64-1:0]			sw_data_1			;
	wire	[64-1:0]			sw_state			;
	
	wire	[ 4-1:0]			debug_sig_2116		;
	wire	[ 4-1:0]			debug_sig_eeg		;
	wire	[ 4-1:0]			debug_sig_msg		;

	
	//*****************************************************************************
	// Instantiation
	//*****************************************************************************
	trigger_top#
		(
			.CLK_PERIOD			( CLK_PERIOD			)
		)
	u_trigger_top
		(
			.clk				( clk					),
			.rst_n				( rst_n					),
			
			.trigger_reset		( trigger_reset			),

			.trigger_in_int		( trigger_in_int		),
			.trigger_in_ext		( trigger_in_ext		),

			.m_trigger_tdata	( axis_trigger_tdata	),
			.m_trigger_tvalid	( axis_trigger_tvalid	),
			.m_trigger_tready	( axis_trigger_tready	),

			.error_overflow		( 						)
		);

	rhs2116_top# 
		(
			.CLK_PERIOD			( CLK_PERIOD			),
			.VERSION			( VERSION				),
			.SPI_CLK_DIV		( RHS2116_SPI_CLK_DIV	),
			.CHIPSET_QTY		( RSH2116_QTY			),
			.SPI_TRANS_PERIOD	( RSH2116_SPI_PERIOD	)
		)
	u_rhs2116_top
		(
			.clk				( clk					),
			.rst_n				( rst_n					),
			
			.bram_addr			( bram_stim_addr		),
			.bram_clk			( bram_stim_clk			),
			.bram_din			( bram_stim_din			),
			.bram_dout			( bram_stim_dout		),
			.bram_en			( bram_stim_en			),
			.bram_rst			( bram_stim_rst			),
			.bram_we			( bram_stim_we			),
			
			.interrupt			( stim_int			    ),
			.stim_event_code	( trigger_in_int		),
			
			//------------------------------------------ FIFO: stim input and record output
			.axi_str_txd_tdata	( m_axis_stim_tdata		),
			.axi_str_txd_tlast	( m_axis_stim_tlast		),
			.axi_str_txd_tready	( m_axis_stim_tready	),
			.axi_str_txd_tvalid	( m_axis_stim_tvalid	),
			
			.axi_str_rxd_tdata	( axis_eeg16_tdata		),
			.axi_str_rxd_tlast	( axis_eeg16_tlast		),
			.axi_str_rxd_tready	( axis_eeg16_tready		),
			.axi_str_rxd_tvalid	( axis_eeg16_tvalid		),

			//------------------------------------------ channel stim state
			.sw_enable			( sw_enable				),
			.sw_data_sel		( sw_data_sel			),
			.sw_data_0			( sw_data_0				),
			.sw_data_1			( sw_data_1				),
			.sw_state			( sw_state				),
			
			//------------------------------------------ device
			.stim_en			( rsh2116_enable		),
			.cs					( rsh2116_spi_cs		),
			.sclk				( rsh2116_spi_sclk		),
			.mosi				( rsh2116_spi_mosi		),
			.miso				( rsh2116_spi_miso		),
			
			.debug_sig			( debug_sig_2116		)
		);
	
	eeg_top#
		(
			.CLK_PERIOD			( CLK_PERIOD			)
		)
	u_eeg_top
		(
			.clk				( clk					),
			.rst_n				( rst_n					),
			
			.bram_addr			( bram_eeg_addr			),
			.bram_clk			( bram_eeg_clk			),
			.bram_din			( bram_eeg_din			),
			.bram_dout			( bram_eeg_dout			),
			.bram_en			( bram_eeg_en			),
			.bram_rst			( bram_eeg_rst			),
			.bram_we			( bram_eeg_we			),

			.interrupt			( eeg_int				),
			
			//------------------------------------------ FIFO: eeg output
			.axis_record_tdata	( axis_eeg24_tdata		),
			.axis_record_tlast	( axis_eeg24_tlast		),
			.axis_record_tready	( axis_eeg24_tready		),
			.axis_record_tvalid	( axis_eeg24_tvalid		),
			
			//------------------------------------------ device spi
			.cs					( eeg_ads1299_spi_cs	),
			.sclk				( eeg_ads1299_spi_sclk	),
			.mosi				( eeg_ads1299_spi_mosi	),
			.miso				( eeg_ads1299_spi_miso	),
			.drdy				( eeg_ads1299_drdy_n	),
			.start				( eeg_ads1299_start		),

			//------------------------------------------ debug signal
			.debug_sig			( debug_sig_eeg			)
		);
	
	emg_top#
		(
			.CLK_PERIOD			( CLK_PERIOD			)
		)
	u_emg_top
		(
			.clk				( clk					),
			.rst_n				( rst_n					),
			
			.bram_addr			( bram_emg_addr			),
			.bram_clk			( bram_emg_clk			),
			.bram_din			( bram_emg_din			),
			.bram_dout			( bram_emg_dout			),
			.bram_en			( bram_emg_en			),
			.bram_rst			( bram_emg_rst			),
			.bram_we			( bram_emg_we			),

			.interrupt			( emg_int				),
			
			//------------------------------------------ FIFO: emg output
			.axis_txd_tdata		( axis_emg_tdata		),
			.axis_txd_tlast		( axis_emg_tlast		),
			.axis_txd_tready	( axis_emg_tready		),
			.axis_txd_tvalid	( axis_emg_tvalid		),
			
			//------------------------------------------ device interface
			.cs					( emg_ads1299_spi_cs	),
			.sclk				( emg_ads1299_spi_sclk	),
			.mosi				( emg_ads1299_spi_mosi	),
			.miso				( emg_ads1299_spi_miso	),
			.drdy				( emg_ads1299_drdy_n	),
			.start				( emg_ads1299_start		),
			.reset_n			( emg_ads1299_reset_n	),
			.pwdn_n				( emg_ads1299_pwdn_n	)
		);
		
	accel_top# 
		(
			.CLK_PERIOD		    ( CLK_PERIOD			)
		)
	u_accel_top
		(
			.clk			    ( clk 			        ),
			.rst_n			    ( rst_n 		        ),
			
			.bram_addr			( bram_accel_addr		),
			.bram_clk			( bram_accel_clk		),
			.bram_din			( bram_accel_din		),
			.bram_dout			( bram_accel_dout		),
			.bram_en			( bram_accel_en			),
			.bram_rst			( bram_accel_rst		),
			.bram_we			( bram_accel_we			),

			.interrupt			( accel_int				),
			.accel_data			( accel_data			),

			.accel_spi_cs		( accel_spi_cs			),
			.accel_spi_sclk		( accel_spi_sclk		),
			.accel_spi_mosi		( accel_spi_mosi		),
			.accel_spi_miso		( accel_spi_miso		),
			.accel_int0			( accel_int0			),
			.accel_int1			( accel_int1			)
		);
		
	channel_switch# 
		(
			.CLK_PERIOD		    ( CLK_PERIOD			)
		)
	u_channel_switch
		(
			.clk			    ( clk 			        ),
			.rst_n			    ( rst_n 		        ),

			.enable				( sw_enable				),
			.data_sel			( sw_data_sel			),
			.data_0		    	( sw_data_0				),
			.data_1		    	( sw_data_1				),
			.state				( sw_state				),
			
			.sync			    ( adg1414_spi_sync   	),
			.sclk			    ( adg1414_spi_sclk   	),
			.sdin			    ( adg1414_spi_mosi   	),
			.sdo			    ( adg1414_spi_miso   	)
		);
		
	upload_top# 
		(
			.CLK_PERIOD		    	( CLK_PERIOD			)
		)
	u_upload_top
		(
			.clk			    	( clk 			        ),
			.rst_n			    	( rst_n 		        ),
			
			//------------------------------------------ config
			.bram_addr				( bram_msg_addr			),
			.bram_clk				( bram_msg_clk			),
			.bram_din				( bram_msg_din			),
			.bram_dout				( bram_msg_dout			),
			.bram_en				( bram_msg_en			),
			.bram_rst				( bram_msg_rst			),
			.bram_we				( bram_msg_we			),

			//------------------------------------------ recive
			.s_axis_trigger_tdata	( axis_trigger_tdata	),
			.s_axis_trigger_tvalid	( axis_trigger_tvalid	),
			.s_axis_trigger_tready	( axis_trigger_tready	),

			.s_axis_eeg16_tdata		( axis_eeg16_tdata		),
			.s_axis_eeg16_tlast		( axis_eeg16_tlast		),
			.s_axis_eeg16_tready	( axis_eeg16_tready		),
			.s_axis_eeg16_tvalid	( axis_eeg16_tvalid		),

			.s_axis_eeg24_tdata		( axis_eeg24_tdata		),
			.s_axis_eeg24_tlast		( axis_eeg24_tlast		),
			.s_axis_eeg24_tready	( axis_eeg24_tready		),
			.s_axis_eeg24_tvalid	( axis_eeg24_tvalid		),

			.s_axis_emg_tdata		( axis_emg_tdata		),
			.s_axis_emg_tlast		( axis_emg_tlast		),
			.s_axis_emg_tready		( axis_emg_tready		),
			.s_axis_emg_tvalid		( axis_emg_tvalid		),

			.accel_data				( accel_data			),
			
			//------------------------------------------ upload
			.m_axis_record_tfull	( m_axis_record_tfull	),
			.m_axis_record_tdata	( m_axis_record_tdata	),
			.m_axis_record_tkeep	( m_axis_record_tkeep	),
			.m_axis_record_tlast	( m_axis_record_tlast	),
			.m_axis_record_tready	( m_axis_record_tready	),
			.m_axis_record_tvalid	( m_axis_record_tvalid	),

			//------------------------------------------ debug signal
			.debug_sig				( debug_sig_msg			)
		);
		
	//*****************************************************************************
	// Wire assignment
	//*****************************************************************************
	assign trigger_in_ext = trigger_in;
	assign trigger_out = trigger_in_int;

	assign debug_sig = debug_sig_2116;
//	assign debug_sig[0] = axis_eeg24_tvalid;
//	assign debug_sig[1] = axis_eeg24_tlast;
//	assign debug_sig[2] = axis_eeg24_tready;
//	assign debug_sig[3] = 1'b0;
	
endmodule