adding part 2 and 3

7 files changed, 540 insertions, 0 deletions

diff --git a/part_3/mylib/ROM.v b/part_3/mylib/ROM.v
new file mode 100755
index 0000000..296e57c
--- /dev/null
+++ b/part_3/mylib/ROM.v
@@ -0,0 +1,160 @@
+// megafunction wizard: %ROM: 1-PORT%

+// GENERATION: STANDARD

+// VERSION: WM1.0

+// MODULE: altsyncram 

+

+// ============================================================

+// File Name: ROM.v

+// Megafunction Name(s):

+// 			altsyncram

+//

+// Simulation Library Files(s):

+// 			altera_mf

+// ============================================================

+// ************************************************************

+// THIS IS A WIZARD-GENERATED FILE. DO NOT EDIT THIS FILE!

+//

+// 16.0.0 Build 211 04/27/2016 SJ Standard Edition

+// ************************************************************

+

+

+//Copyright (C) 1991-2016 Altera Corporation. All rights reserved.

+//Your use of Altera Corporation's design tools, logic functions 

+//and other software and tools, and its AMPP partner logic 

+//functions, and any output files from any of the foregoing 

+//(including device programming or simulation files), and any 

+//associated documentation or information are expressly subject 

+//to the terms and conditions of the Altera Program License 

+//Subscription Agreement, the Altera Quartus Prime License Agreement,

+//the Altera MegaCore Function License Agreement, or other 

+//applicable license agreement, including, without limitation, 

+//that your use is for the sole purpose of programming logic 

+//devices manufactured by Altera and sold by Altera or its 

+//authorized distributors.  Please refer to the applicable 

+//agreement for further details.

+

+

+// synopsys translate_off

+`timescale 1 ps / 1 ps

+// synopsys translate_on

+module ROM (

+	address,

+	clock,

+	q);

+

+	input	[9:0]  address;

+	input	  clock;

+	output	[9:0]  q;

+`ifndef ALTERA_RESERVED_QIS

+// synopsys translate_off

+`endif

+	tri1	  clock;

+`ifndef ALTERA_RESERVED_QIS

+// synopsys translate_on

+`endif

+

+	wire [9:0] sub_wire0;

+	wire [9:0] q = sub_wire0[9:0];

+

+	altsyncram	altsyncram_component (

+				.address_a (address),

+				.clock0 (clock),

+				.q_a (sub_wire0),

+				.aclr0 (1'b0),

+				.aclr1 (1'b0),

+				.address_b (1'b1),

+				.addressstall_a (1'b0),

+				.addressstall_b (1'b0),

+				.byteena_a (1'b1),

+				.byteena_b (1'b1),

+				.clock1 (1'b1),

+				.clocken0 (1'b1),

+				.clocken1 (1'b1),

+				.clocken2 (1'b1),

+				.clocken3 (1'b1),

+				.data_a ({10{1'b1}}),

+				.data_b (1'b1),

+				.eccstatus (),

+				.q_b (),

+				.rden_a (1'b1),

+				.rden_b (1'b1),

+				.wren_a (1'b0),

+				.wren_b (1'b0));

+	defparam

+		altsyncram_component.address_aclr_a = "NONE",

+		altsyncram_component.clock_enable_input_a = "BYPASS",

+		altsyncram_component.clock_enable_output_a = "BYPASS",

+		altsyncram_component.init_file = "./rom_data/rom_data.mif",

+		altsyncram_component.intended_device_family = "Cyclone V",

+		altsyncram_component.lpm_hint = "ENABLE_RUNTIME_MOD=NO",

+		altsyncram_component.lpm_type = "altsyncram",

+		altsyncram_component.numwords_a = 1024,

+		altsyncram_component.operation_mode = "ROM",

+		altsyncram_component.outdata_aclr_a = "NONE",

+		altsyncram_component.outdata_reg_a = "CLOCK0",

+		altsyncram_component.widthad_a = 10,

+		altsyncram_component.width_a = 10,

+		altsyncram_component.width_byteena_a = 1;

+

+

+endmodule

+

+// ============================================================

+// CNX file retrieval info

+// ============================================================

+// Retrieval info: PRIVATE: ADDRESSSTALL_A NUMERIC "0"

+// Retrieval info: PRIVATE: AclrAddr NUMERIC "0"

+// Retrieval info: PRIVATE: AclrByte NUMERIC "0"

+// Retrieval info: PRIVATE: AclrOutput NUMERIC "0"

+// Retrieval info: PRIVATE: BYTE_ENABLE NUMERIC "0"

+// Retrieval info: PRIVATE: BYTE_SIZE NUMERIC "8"

+// Retrieval info: PRIVATE: BlankMemory NUMERIC "0"

+// Retrieval info: PRIVATE: CLOCK_ENABLE_INPUT_A NUMERIC "0"

+// Retrieval info: PRIVATE: CLOCK_ENABLE_OUTPUT_A NUMERIC "0"

+// Retrieval info: PRIVATE: Clken NUMERIC "0"

+// Retrieval info: PRIVATE: IMPLEMENT_IN_LES NUMERIC "0"

+// Retrieval info: PRIVATE: INIT_FILE_LAYOUT STRING "PORT_A"

+// Retrieval info: PRIVATE: INIT_TO_SIM_X NUMERIC "0"

+// Retrieval info: PRIVATE: INTENDED_DEVICE_FAMILY STRING "Cyclone V"

+// Retrieval info: PRIVATE: JTAG_ENABLED NUMERIC "0"

+// Retrieval info: PRIVATE: JTAG_ID STRING "NONE"

+// Retrieval info: PRIVATE: MAXIMUM_DEPTH NUMERIC "0"

+// Retrieval info: PRIVATE: MIFfilename STRING "./rom_data/rom_data.mif"

+// Retrieval info: PRIVATE: NUMWORDS_A NUMERIC "1024"

+// Retrieval info: PRIVATE: RAM_BLOCK_TYPE NUMERIC "0"

+// Retrieval info: PRIVATE: RegAddr NUMERIC "1"

+// Retrieval info: PRIVATE: RegOutput NUMERIC "1"

+// Retrieval info: PRIVATE: SYNTH_WRAPPER_GEN_POSTFIX STRING "0"

+// Retrieval info: PRIVATE: SingleClock NUMERIC "1"

+// Retrieval info: PRIVATE: UseDQRAM NUMERIC "0"

+// Retrieval info: PRIVATE: WidthAddr NUMERIC "10"

+// Retrieval info: PRIVATE: WidthData NUMERIC "10"

+// Retrieval info: PRIVATE: rden NUMERIC "0"

+// Retrieval info: LIBRARY: altera_mf altera_mf.altera_mf_components.all

+// Retrieval info: CONSTANT: ADDRESS_ACLR_A STRING "NONE"

+// Retrieval info: CONSTANT: CLOCK_ENABLE_INPUT_A STRING "BYPASS"

+// Retrieval info: CONSTANT: CLOCK_ENABLE_OUTPUT_A STRING "BYPASS"

+// Retrieval info: CONSTANT: INIT_FILE STRING "./rom_data/rom_data.mif"

+// Retrieval info: CONSTANT: INTENDED_DEVICE_FAMILY STRING "Cyclone V"

+// Retrieval info: CONSTANT: LPM_HINT STRING "ENABLE_RUNTIME_MOD=NO"

+// Retrieval info: CONSTANT: LPM_TYPE STRING "altsyncram"

+// Retrieval info: CONSTANT: NUMWORDS_A NUMERIC "1024"

+// Retrieval info: CONSTANT: OPERATION_MODE STRING "ROM"

+// Retrieval info: CONSTANT: OUTDATA_ACLR_A STRING "NONE"

+// Retrieval info: CONSTANT: OUTDATA_REG_A STRING "CLOCK0"

+// Retrieval info: CONSTANT: WIDTHAD_A NUMERIC "10"

+// Retrieval info: CONSTANT: WIDTH_A NUMERIC "10"

+// Retrieval info: CONSTANT: WIDTH_BYTEENA_A NUMERIC "1"

+// Retrieval info: USED_PORT: address 0 0 10 0 INPUT NODEFVAL "address[9..0]"

+// Retrieval info: USED_PORT: clock 0 0 0 0 INPUT VCC "clock"

+// Retrieval info: USED_PORT: q 0 0 10 0 OUTPUT NODEFVAL "q[9..0]"

+// Retrieval info: CONNECT: @address_a 0 0 10 0 address 0 0 10 0

+// Retrieval info: CONNECT: @clock0 0 0 0 0 clock 0 0 0 0

+// Retrieval info: CONNECT: q 0 0 10 0 @q_a 0 0 10 0

+// Retrieval info: GEN_FILE: TYPE_NORMAL ROM.v TRUE

+// Retrieval info: GEN_FILE: TYPE_NORMAL ROM.inc FALSE

+// Retrieval info: GEN_FILE: TYPE_NORMAL ROM.cmp FALSE

+// Retrieval info: GEN_FILE: TYPE_NORMAL ROM.bsf FALSE

+// Retrieval info: GEN_FILE: TYPE_NORMAL ROM_inst.v FALSE

+// Retrieval info: GEN_FILE: TYPE_NORMAL ROM_bb.v TRUE

+// Retrieval info: LIB_FILE: altera_mf

diff --git a/part_3/mylib/counter_10.v b/part_3/mylib/counter_10.v
new file mode 100755
index 0000000..72c96fa
--- /dev/null
+++ b/part_3/mylib/counter_10.v
@@ -0,0 +1,18 @@
+`timescale 1ns / 100ps

+

+module counter_10(clock,enable,count);

+

+	parameter BIT_SZ = 10;

+	input clock;

+	input enable;

+	output [BIT_SZ-1:0] count;

+	

+	reg [BIT_SZ-1:0] count;

+	

+	initial count = 0;

+	

+	always @ (posedge clock)

+		if(enable == 1'b1)

+			count <= count + 1'b1;

+			

+endmodule
\ No newline at end of file
diff --git a/part_3/mylib/hex_to_7seg.v b/part_3/mylib/hex_to_7seg.v
new file mode 100755
index 0000000..82aa9a5
--- /dev/null
+++ b/part_3/mylib/hex_to_7seg.v
@@ -0,0 +1,27 @@
+module hex_to_7seg (out, in);

+

+	output [6:0] out;

+	input [3:0] in;

+	

+	reg [6:0] out;

+	

+	always @ (*)

+		case(in)

+			4'h0: out = 7'b1000000;

+			4'h1: out = 7'b1111001;

+			4'h2: out = 7'b0100100;

+			4'h3: out = 7'b0110000;

+			4'h4: out = 7'b0011001;

+			4'h5: out = 7'b0010010;

+			4'h6: out = 7'b0000010;

+			4'h7: out = 7'b1111000;

+			4'h8: out = 7'b0000000;

+			4'h9: out = 7'b0011000;

+			4'ha: out = 7'b0001000;

+			4'hb: out = 7'b0000011;

+			4'hc: out = 7'b1000110;

+			4'hd: out = 7'b0100001;

+			4'he: out = 7'b0000110;

+			4'hf: out = 7'b0001110;

+		endcase

+endmodule

diff --git a/part_3/mylib/pwm.v b/part_3/mylib/pwm.v
new file mode 100755
index 0000000..6a6e10c
--- /dev/null
+++ b/part_3/mylib/pwm.v
@@ -0,0 +1,25 @@
+module pwm(clk, data_in, load, pwm_out);

+

+	input clk;

+	input [9:0] data_in;

+	input load;

+	output pwm_out;

+	

+	reg[9:0] d;

+	reg [9:0] count;

+	reg pwm_out;

+	

+	always @ (posedge clk)

+		if(load == 1'b1) d <= data_in;

+		

+	initial count = 10'b0;

+	

+	always @ (posedge clk) begin

+		count <= count + 1'b1;

+		if(count > d)

+			pwm_out <= 1'b0;

+		else

+			pwm_out <= 1'b1;

+		end

+		

+endmodule
\ No newline at end of file
diff --git a/part_3/mylib/spi2adc.v b/part_3/mylib/spi2adc.v
new file mode 100755
index 0000000..3878f71
--- /dev/null
+++ b/part_3/mylib/spi2adc.v
@@ -0,0 +1,150 @@
+//------------------------------

+// Module name: spi2adc

+// Function: SPI interface for MCP3002 ADC

+// Creator:  Peter Cheung

+// Version:  1.1

+// Date:     24 Jan 2014

+//------------------------------

+

+module spi2adc (sysclk, start, channel, data_from_adc, data_valid, 

+						sdata_to_adc, adc_cs, adc_sck, sdata_from_adc);

+

+	input	sysclk;			// 50MHz system clock of DE0

+	input	start;			// Pulse to start ADC, minimum wide = clock period

+	input	channel;			// channel 0 or 1 to be converted

+	output [9:0] data_from_adc;	// 10-bit ADC result

+	output data_valid;	// High indicates that converted data valid

+	output sdata_to_adc;	// Serial commands send to adc chip

+	output adc_cs;			// chip select - low when converting

+	output adc_sck;		// SPI clock - active during conversion

+	input sdata_from_adc;	// Converted serial data from ADC, MSB first

+

+//-------------Input Ports-----------------------------

+// All the input ports should be wires

+	wire	sysclk, start, sdata_from_adc;

+

+//-------------Output Ports-----------------------------

+// Output port can be a storage element (reg) or a wire

+	reg [9:0]	data_from_adc;

+	reg			adc_cs;

+	wire			sdata_to_adc, adc_sck, data_valid;

+	

+//-------------Configuration parameters for ADC --------

+	parameter	SGL=1'b1;	// 0:diff i/p, 1:single-ended

+	parameter	MSBF=1'b1;	// 0:LSB first, 1:MSB first

+			

+// --- Submodule: Generate internal clock at 1 MHz -----

+	reg			clk_1MHz;	// 1Mhz clock derived from 50MHz

+	reg [4:0]	ctr;			// internal counter

+	parameter	TIME_CONSTANT = 5'd24;  // change this for diff clk freq

+	initial begin

+		clk_1MHz = 0;			// don't need to reset - don't care if it is 1 or 0 to start

+		ctr = 5'b0;				//  ... to start.  Initialise to make simulation easier

+	end

+		

+	always @ (posedge sysclk)   // 

+	  if (ctr==0) begin

+		  ctr <= TIME_CONSTANT;

+		  clk_1MHz <= ~clk_1MHz; // toggle the output clock for squarewave

+		end

+	  else

+		  ctr <= ctr - 1'b1;

+// ---- end internal clock generator ----------

+

+// ---- Detect start is asserted with a small state machine

+	// .... FF set on positive edge of start

+	// .... reset when adc_cs goes high again

+	reg [1:0] 	sr_state;

+	parameter	IDLE  = 2'b00,WAIT_CSB_FALL = 2'b01, WAIT_CSB_HIGH = 2'b10;

+	reg			adc_start;

+	

+	initial begin

+		sr_state = IDLE;

+		adc_start = 1'b0;	// set while sending data to ADC

+		end

+	

+	always @ (posedge sysclk)

+		case (sr_state)

+			IDLE:	if (start==1'b0) sr_state <= IDLE;

+					else	begin

+						sr_state <= WAIT_CSB_FALL;

+						adc_start <= 1'b1;

+						end  				

+			WAIT_CSB_FALL: if (adc_cs==1'b1) sr_state <= WAIT_CSB_FALL;

+					else sr_state <= WAIT_CSB_HIGH;

+					

+			WAIT_CSB_HIGH: if (adc_cs==1'b0) sr_state <= WAIT_CSB_HIGH;

+					else begin

+						sr_state <= IDLE;

+						adc_start <= 1'b0;

+						end	

+			default: sr_state <= IDLE;

+		endcase

+//------- End circuit to detect start and end of conversion	

+

+	

+// spi controller designed as a state machine

+// .... with 16 states (idle, and S1-S15 indicated by state value

+

+	reg [4:0] 	state;

+	reg  	adc_done, adc_din, shift_ena;

+	

+	initial	begin	

+		state = 5'b0; adc_cs = 1'b1; adc_done = 1'b0; 

+		adc_din = 1'b0; shift_ena <= 1'b0;

+		end

+		

+	always @(posedge clk_1MHz)  begin

+	

+	// default outputs and state transition

+		adc_cs <= 1'b0;  adc_done <= 1'b0;  adc_din <= 1'b0; shift_ena <= 1'b0;

+		state <= state + 1'b1;

+		case (state)

+			5'd0:	begin

+						if (adc_start==1'b0) begin

+							state <= 5'd0;			// still idle

+							adc_cs <= 1'b1;		// chip select not active

+							end

+						else begin

+							state <= 5'd1;			// start converting

+							adc_din <= 1'b1;		// start bit is 1

+							end

+					end

+			5'd1:	adc_din <= SGL;				// SGL bit

+			5'd2:	adc_din <= channel;			// CH bit

+			5'd3:	adc_din <= MSBF;				// MSB first bit

+			5'd4: shift_ena <= 1'b1;  			// start shifting data from adc

+			5'd15: begin

+						shift_ena <= 1'b0;

+						adc_done <= 1'b1;

+					 end

+			5'd16: begin  

+						adc_cs <= 1'b1;		// last state - disable chip select

+						state <= 5'd0;  		// go back to idle state

+					 end

+			default: 				

+						shift_ena <= 1'b1;	// unspecified states are covered by default above

+			endcase

+		end	// ... always

+	

+	// shift register for output data

+	reg [9:0] shift_reg;

+	initial	begin

+			shift_reg = 10'b0;

+			data_from_adc = 10'b0;

+			end

+	

+	always @(negedge clk_1MHz)

+		if((adc_cs==1'b0)&&(shift_ena==1'b1))		// start shifting data_in

+				shift_reg <= {shift_reg[8:0],sdata_from_adc};

+	

+	// Latch converted output data

+	always @(posedge clk_1MHz)

+		if(adc_done) 					

+				data_from_adc = shift_reg;

+

+	// Assign outputs to drive SPI interface to DAC

+		assign adc_sck = !clk_1MHz & !adc_cs;

+		assign sdata_to_adc = adc_din;

+		assign data_valid = adc_cs;

+endmodule
\ No newline at end of file
diff --git a/part_3/mylib/spi2dac.v b/part_3/mylib/spi2dac.v
new file mode 100755
index 0000000..586a231
--- /dev/null
+++ b/part_3/mylib/spi2dac.v
@@ -0,0 +1,128 @@
+//------------------------------

+// Module name: spi2dac

+// Function: SPI interface for MPC4911 DAC

+// Creator:  Peter Cheung

+// Version:  2.0

+// Date:     8 Nov 2016

+//------------------------------

+

+module spi2dac (sysclk, data_in, load, dac_sdi, dac_cs, dac_sck, dac_ld);

+

+	input	sysclk;			// 50MHz system clock of DE1

+	input	[9:0]	data_in;	// input data to DAC

+	input	load;				// Pulse to load data to dac

+	output dac_sdi;		// SPI serial data out

+	output dac_cs;			// chip select - low when sending data to dac

+	output dac_sck;		// SPI clock, 16 cycles at half sysclk freq

+	output dac_ld;

+

+//-------------Input Ports-----------------------------

+// All the input ports should be wires

+	wire			sysclk, load;

+	wire [9:0]	data_in;

+	

+//-------------Output Ports-----------------------------

+// Output port can be a storage element (reg) or a wire

+	reg			dac_cs, dac_ld;

+	wire			dac_sck, dac_sdi;

+	

+	parameter	BUF=1'b1;		// 0:no buffer, 1:Vref buffered

+	parameter	GA_N=1'b1;		// 0:gain = 2x, 1:gain = 1x

+	parameter	SHDN_N=1'b1;	// 0:power down, 1:dac active

+	

+	wire [3:0] cmd = {1'b0,BUF,GA_N,SHDN_N};  // wire to VDD or GND

+	

+	// --- internal 1MHz symmetical clock generator -----

+	reg			clk_1MHz;	// 1Mhz clock derived from 50MHz

+	reg [4:0]	ctr;			// internal counter

+	

+	parameter	TC = 5'd24;  // Terminal count - change this for diff clk freq

+	initial begin

+		clk_1MHz = 0;			// don't need to reset - don't care if it is 1 or 0 to start

+		ctr = 5'b0;				//  ... Initialise when FPGA is configured

+	end

+		

+	always @ (posedge sysclk)    

+	  if (ctr==0) begin

+		  ctr <= TC;

+		  clk_1MHz <= ~clk_1MHz; // toggle the output clock for squarewave

+		end

+	  else

+		  ctr <= ctr - 1'b1;

+	// ---- end internal 1MHz symmetical clock generator ----------

+

+	// ---- FSM to detect rising edge of load and falling edge of dac_cs

+	// .... sr_state set on posedge of load

+	// .... sr_state reset when dac_cs goes high at the end of DAC output cycle

+	reg [1:0] 	sr_state;

+	parameter	IDLE  = 2'b00,WAIT_CSB_FALL = 2'b01, WAIT_CSB_HIGH = 2'b10;

+	reg			dac_start;		 // set if a DAC write is detected

+	

+	initial begin

+		sr_state = IDLE;

+		dac_start = 1'b0;	// set while sending data to DAC

+		end

+	

+	always @ (posedge sysclk)  // state transition

+		case (sr_state)

+			IDLE:	if (load==1'b1) sr_state <= WAIT_CSB_FALL;

+			WAIT_CSB_FALL: if (dac_cs==1'b0) sr_state <= WAIT_CSB_HIGH;

+			WAIT_CSB_HIGH: if (dac_cs==1'b1) sr_state <= IDLE;

+			default: sr_state <= IDLE;

+		endcase

+	

+	always @ (*)

+		case (sr_state)

+			IDLE: dac_start = 1'b0;

+			WAIT_CSB_FALL: dac_start = 1'b1;

+			WAIT_CSB_HIGH: dac_start = 1'b0;

+			default: dac_start = 1'b0;

+		endcase

+		

+	//------- End circuit to detect start and end of conversion	state machine

+

+	//------- spi controller FSM

+	// .... with 17 states (idle, and S1-S16 

+	// .... for the 16 cycles each sending 1-bit to dac)

+	reg [4:0] 	state;

+	

+	initial	begin	

+		state = 5'b0; dac_ld = 1'b0; dac_cs = 1'b1; 

+		end

+		

+	always @(posedge clk_1MHz)  // FSM state transition

+		case (state)

+			5'd0:	if (dac_start == 1'b1)    // waiting to start

+						state <= state + 1'b1; 

+					else 

+						state <= 5'b0; 

+			5'd17: 	state <= 5'd0;  // go back to idle state

+			default: state <= state + 1'b1;	// default go to next state

+		endcase

+	

+	always @ (*)	begin			// FSM output

+		dac_cs = 1'b0;  dac_ld = 1'b1;

+		case (state)

+			5'd0: 	dac_cs = 1'b1;

+			5'd17: 	begin dac_cs = 1'b1; dac_ld = 1'b0; end

+			default: begin dac_cs = 1'b0;	dac_ld = 1'b1;	end

+			endcase

+		end //always

+	// --------- END of spi controller FSM

+	

+	// shift register for output data

+	reg [15:0] shift_reg;

+	initial	begin	

+		shift_reg = 16'b0; 

+		end

+

+	always @(posedge clk_1MHz)

+		if((dac_start==1'b1)&&(dac_cs==1'b1))		// parallel load data to shift reg

+			shift_reg <= {cmd,data_in,2'b00};

+		else 													// .. else start shifting

+			shift_reg <= {shift_reg[14:0],1'b0};

+	

+	// Assign outputs to drive SPI interface to DAC

+			assign dac_sck = !clk_1MHz&!dac_cs;

+			assign dac_sdi = shift_reg[15];

+endmodule
\ No newline at end of file
diff --git a/part_3/mylib/tick_5000.v b/part_3/mylib/tick_5000.v
new file mode 100755
index 0000000..a048386
--- /dev/null
+++ b/part_3/mylib/tick_5000.v
@@ -0,0 +1,32 @@
+module tick_5000(CLOCK_IN, CLK_OUT);

+

+	parameter NBIT = 16;

+	

+	input CLOCK_IN;

+	output CLK_OUT;

+	

+	reg [NBIT-1:0] count;

+	

+	reg CLK_OUT;

+	

+	initial 

+		begin

+			count = 16'd4999;

+			CLK_OUT = 1'b0;

+		end

+	

+	always @ (posedge CLOCK_IN)

+		begin

+			if(count == 16'b0)

+				begin

+					CLK_OUT <= 1'b1;

+					count <= 16'd4999;

+				end

+			else

+				begin

+					count <= count - 1'b1;

+					CLK_OUT <= 1'b0;

+				end

+		end

+

+endmodule
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