Code FPGA fonctionnel

Semaine_7/DHT11_UART/IP/verilog/dht11_interface.v

@@ -120,10 +120,8 @@ module dht11_interface #(
                 timer <= timer + 1;
 
                 if (sig_in == 1 ) begin
-                    
                     timer <= 0;
                     state <= RESPONSE_HIGH;
-                    
                 end
             end
 
@@ -132,8 +130,8 @@ module dht11_interface #(
                 o_state <= state;
                 if (sig_in == 0) begin
                     
-                        timer <= 0;
+                    timer <= 0;
-                        state <= READ_BITS_LOW;
+                    state <= READ_BITS_LOW;
                     
                 end
             end

Semaine_7/ESP32/README.md

@@ -14,3 +14,4 @@ expliquer que c'est long a cause des simulations (creation de model pour simuler
 parfois en vrais les marges sont plus souple et ne respecte pas la doc
 debuguage dure expliquer pourquoi 
 
+

Semaine_7/ESP32/leds_commands/.gitignore

@@ -0,0 +1,5 @@
+runs
+.vscode
+workspace.code-workspace
+*.pyc
+.idea

Semaine_7/ESP32/leds_commands/IP/verilog/fifo.v

@@ -0,0 +1,48 @@
+ module fifo #(
+	parameter       SIZE = 16,
+	parameter       WIDTH = 8
+)(
+    input wire              clk,
+    input wire              wr_en,
+    input wire[WIDTH-1:0]   wr_data,
+    input wire              rd_en,
+    output reg[WIDTH-1:0]   rd_data,
+
+    output wire             full,
+    output wire             empty
+);
+
+    localparam LOGSIZE = $clog2(SIZE);
+
+    reg [WIDTH-1:0]         fifo[0:SIZE-1];
+    reg [LOGSIZE-1:0]               wr_ptr;
+    reg [LOGSIZE-1:0]               rd_ptr;
+    reg [LOGSIZE:0]               count;
+
+    assign full = (count == SIZE);
+    assign empty = (count == 0);
+
+    initial begin
+        wr_ptr = 0;
+        rd_ptr = 0;
+        count = 0;
+    end
+
+    always @(posedge clk) begin // IN
+        rd_data <= fifo[rd_ptr];
+        if (wr_en && !full && rd_en && !empty)  begin
+            fifo[wr_ptr] <= wr_data;
+            wr_ptr <= (wr_ptr == SIZE - 1) ? 0 :  (wr_ptr + 1) ;
+            rd_ptr <= (rd_ptr == SIZE - 1) ? 0 :  (rd_ptr + 1) ;
+        end else if (wr_en && !full) begin
+            fifo[wr_ptr] <= wr_data;
+            wr_ptr <= (wr_ptr == SIZE - 1) ? 0 :  (wr_ptr + 1) ;
+            count <= count + 1;
+        end else if (rd_en && !empty) begin // OUT
+            rd_ptr <= (rd_ptr == SIZE - 1) ? 0 :  (rd_ptr + 1) ;
+            count <= count - 1;
+        end
+
+    end
+    
+endmodule

Semaine_7/ESP32/leds_commands/IP/verilog/txuartlite.v

@@ -0,0 +1,472 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+// Filename: 	txuartlite.v
+// {{{
+// Project:	wbuart32, a full featured UART with simulator
+//
+// Purpose:	Transmit outputs over a single UART line.  This particular UART
+//		implementation has been extremely simplified: it does not handle
+//	generating break conditions, nor does it handle anything other than the
+//	8N1 (8 data bits, no parity, 1 stop bit) UART sub-protocol.
+//
+//	To interface with this module, connect it to your system clock, and
+//	pass it the byte of data you wish to transmit.  Strobe the i_wr line
+//	high for one cycle, and your data will be off.  Wait until the 'o_busy'
+//	line is low before strobing the i_wr line again--this implementation
+//	has NO BUFFER, so strobing i_wr while the core is busy will just
+//	get ignored.  The output will be placed on the o_txuart output line.
+//
+//	(I often set both data and strobe on the same clock, and then just leave
+//	them set until the busy line is low.  Then I move on to the next piece
+//	of data.)
+//
+// Creator:	Dan Gisselquist, Ph.D.
+//		Gisselquist Technology, LLC
+//
+////////////////////////////////////////////////////////////////////////////////
+// }}}
+// Copyright (C) 2015-2024, Gisselquist Technology, LLC
+// {{{
+// This program is free software (firmware): you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as published
+// by the Free Software Foundation, either version 3 of the License, 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 MERCHANTIBILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program.  (It's in the $(ROOT)/doc directory.  Run make with no
+// target there if the PDF file isn't present.)  If not, see
+// <http://www.gnu.org/licenses/> for a copy.
+// }}}
+// License:	GPL, v3, as defined and found on www.gnu.org,
+// {{{
+//		http://www.gnu.org/licenses/gpl.html
+//
+////////////////////////////////////////////////////////////////////////////////
+//
+`default_nettype	none
+// }}}
+module txuartlite #(
+		// {{{
+		// TIMING_BITS -- the number of bits required to represent
+		// the number of clocks per baud.  24 should be sufficient for
+		// most baud rates, but you can trim it down to save logic if
+		// you would like.  TB is just an abbreviation for TIMING_BITS.
+		parameter	[4:0]	TIMING_BITS = 5'd8,
+		localparam		TB = TIMING_BITS,
+		// CLOCKS_PER_BAUD -- the number of system clocks per baud
+		// interval.
+		parameter	[(TB-1):0]	CLOCKS_PER_BAUD = 234 // 24'd868
+		// }}}
+	) (
+		// {{{
+		input	wire		i_clk, i_reset,
+		input	wire		i_wr,
+		input	wire	[7:0]	i_data,
+		// And the UART input line itself
+		output	reg		o_uart_tx,
+		// A line to tell others when we are ready to accept data.  If
+		// (i_wr)&&(!o_busy) is ever true, then the core has accepted
+		// a byte for transmission.
+		output	wire		o_busy
+		// }}}
+	);
+
+	// Register/net declarations
+	// {{{
+	localparam [3:0]	TXUL_BIT_ZERO  = 4'h0,
+			//	TXUL_BIT_ONE   = 4'h1,
+			//	TXUL_BIT_TWO   = 4'h2,
+			//	TXUL_BIT_THREE = 4'h3,
+			//	TXUL_BIT_FOUR  = 4'h4,
+			//	TXUL_BIT_FIVE  = 4'h5,
+			//	TXUL_BIT_SIX   = 4'h6,
+			//	TXUL_BIT_SEVEN = 4'h7,
+				TXUL_STOP      = 4'h8,
+				TXUL_IDLE      = 4'hf;
+
+	reg	[(TB-1):0]	baud_counter;
+	reg	[3:0]	state;
+	reg	[7:0]	lcl_data;
+	reg		r_busy, zero_baud_counter;
+	// }}}
+
+	// Big state machine controlling: r_busy, state
+	// {{{
+	//
+	initial	r_busy = 1'b1;
+	initial	state  = TXUL_IDLE;
+	always @(posedge i_clk)
+	if (i_reset)
+	begin
+		r_busy <= 1'b1;
+		state  <= TXUL_IDLE;
+	end else if (!zero_baud_counter)
+		// r_busy needs to be set coming into here
+		r_busy <= 1'b1;
+	else if (state > TXUL_STOP)	// STATE_IDLE
+	begin
+		state <= TXUL_IDLE;
+		r_busy <= 1'b0;
+		if ((i_wr)&&(!r_busy))
+		begin	// Immediately start us off with a start bit
+			r_busy <= 1'b1;
+			state <= TXUL_BIT_ZERO;
+		end
+	end else begin
+		// One clock tick in each of these states ...
+		r_busy <= 1'b1;
+		if (state <=TXUL_STOP) // start bit, 8-d bits, stop-b
+			state <= state + 1'b1;
+		else
+			state <= TXUL_IDLE;
+	end
+	// }}}
+
+	// o_busy
+	// {{{
+	//
+	// This is a wire, designed to be true is we are ever busy above.
+	// originally, this was going to be true if we were ever not in the
+	// idle state.  The logic has since become more complex, hence we have
+	// a register dedicated to this and just copy out that registers value.
+	assign	o_busy = (r_busy);
+	// }}}
+
+	// lcl_data
+	// {{{
+	//
+	// This is our working copy of the i_data register which we use
+	// when transmitting.  It is only of interest during transmit, and is
+	// allowed to be whatever at any other time.  Hence, if r_busy isn't
+	// true, we can always set it.  On the one clock where r_busy isn't
+	// true and i_wr is, we set it and r_busy is true thereafter.
+	// Then, on any zero_baud_counter (i.e. change between baud intervals)
+	// we simple logically shift the register right to grab the next bit.
+	initial	lcl_data = 8'hff;
+	always @(posedge i_clk)
+	if (i_reset)
+		lcl_data <= 8'hff;
+	else if (i_wr && !r_busy)
+		lcl_data <= i_data;
+	else if (zero_baud_counter)
+		lcl_data <= { 1'b1, lcl_data[7:1] };
+	// }}}
+
+	// o_uart_tx
+	// {{{
+	//
+	// This is the final result/output desired of this core.  It's all
+	// centered about o_uart_tx.  This is what finally needs to follow
+	// the UART protocol.
+	//
+	initial	o_uart_tx = 1'b1;
+	always @(posedge i_clk)
+	if (i_reset)
+		o_uart_tx <= 1'b1;
+	else if (i_wr && !r_busy)
+		o_uart_tx <= 1'b0;	// Set the start bit on writes
+	else if (zero_baud_counter)	// Set the data bit.
+		o_uart_tx <= lcl_data[0];
+	// }}}
+
+	// Baud counter
+	// {{{
+	// All of the above logic is driven by the baud counter.  Bits must last
+	// CLOCKS_PER_BAUD in length, and this baud counter is what we use to
+	// make certain of that.
+	//
+	// The basic logic is this: at the beginning of a bit interval, start
+	// the baud counter and set it to count CLOCKS_PER_BAUD.  When it gets
+	// to zero, restart it.
+	//
+	// However, comparing a 28'bit number to zero can be rather complex--
+	// especially if we wish to do anything else on that same clock.  For
+	// that reason, we create "zero_baud_counter".  zero_baud_counter is
+	// nothing more than a flag that is true anytime baud_counter is zero.
+	// It's true when the logic (above) needs to step to the next bit.
+	// Simple enough?
+	//
+	// I wish we could stop there, but there are some other (ugly)
+	// conditions to deal with that offer exceptions to this basic logic.
+	//
+	// 1. When the user has commanded a BREAK across the line, we need to
+	// wait several baud intervals following the break before we start
+	// transmitting, to give any receiver a chance to recognize that we are
+	// out of the break condition, and to know that the next bit will be
+	// a stop bit.
+	//
+	// 2. A reset is similar to a break condition--on both we wait several
+	// baud intervals before allowing a start bit.
+	//
+	// 3. In the idle state, we stop our counter--so that upon a request
+	// to transmit when idle we can start transmitting immediately, rather
+	// than waiting for the end of the next (fictitious and arbitrary) baud
+	// interval.
+	//
+	// When (i_wr)&&(!r_busy)&&(state == TXUL_IDLE) then we're not only in
+	// the idle state, but we also just accepted a command to start writing
+	// the next word.  At this point, the baud counter needs to be reset
+	// to the number of CLOCKS_PER_BAUD, and zero_baud_counter set to zero.
+	//
+	// The logic is a bit twisted here, in that it will only check for the
+	// above condition when zero_baud_counter is false--so as to make
+	// certain the STOP bit is complete.
+	initial	zero_baud_counter = 1'b1;
+	initial	baud_counter = 0;
+	always @(posedge i_clk)
+	if (i_reset)
+	begin
+		zero_baud_counter <= 1'b1;
+		baud_counter <= 0;
+	end else begin
+		zero_baud_counter <= (baud_counter == 1);
+
+		if (state == TXUL_IDLE)
+		begin
+			baud_counter <= 0;
+			zero_baud_counter <= 1'b1;
+			if ((i_wr)&&(!r_busy))
+			begin
+				baud_counter <= CLOCKS_PER_BAUD - 1'b1;
+				zero_baud_counter <= 1'b0;
+			end
+		end else if (!zero_baud_counter)
+			baud_counter <= baud_counter - 1'b1;
+		else if (state > TXUL_STOP)
+		begin
+			baud_counter <= 0;
+			zero_baud_counter <= 1'b1;
+		end else if (state == TXUL_STOP)
+			// Need to complete this state one clock early, so
+			// we can release busy one clock before the stop bit
+			// is complete, so we can start on the next byte
+			// exactly 10*CLOCKS_PER_BAUD clocks after we started
+			// the last one
+			baud_counter <= CLOCKS_PER_BAUD - 2;
+		else // All other states
+			baud_counter <= CLOCKS_PER_BAUD - 1'b1;
+	end
+	// }}}
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//
+// FORMAL METHODS
+// {{{
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+`ifdef	FORMAL
+	// Declarations
+`ifdef	TXUARTLITE
+`define	ASSUME	assume
+`else
+`define	ASSUME	assert
+`endif
+	reg			f_past_valid, f_last_clk;
+	reg	[(TB-1):0]	f_baud_count;
+	reg	[9:0]		f_txbits;
+	reg	[3:0]		f_bitcount;
+	reg	[7:0]		f_request_tx_data;
+	wire	[3:0]		subcount;
+
+	// Setup
+	// {{{
+	initial	f_past_valid = 1'b0;
+	always @(posedge i_clk)
+		f_past_valid <= 1'b1;
+
+	initial	`ASSUME(!i_wr);
+	always @(posedge i_clk)
+		if ((f_past_valid)&&($past(i_wr))&&($past(o_busy)))
+		begin
+			`ASSUME(i_wr   == $past(i_wr));
+			`ASSUME(i_data == $past(i_data));
+		end
+	// }}}
+
+	// Check the baud counter
+	// {{{
+	always @(posedge i_clk)
+		assert(zero_baud_counter == (baud_counter == 0));
+
+	always @(posedge i_clk)
+	if (f_past_valid && !$past(i_reset) && $past(baud_counter != 0)
+			&& $past(state != TXUL_IDLE))
+		assert(baud_counter == $past(baud_counter - 1'b1));
+
+	always @(posedge i_clk)
+	if (f_past_valid && !$past(i_reset) && !$past(zero_baud_counter)
+			&& $past(state != TXUL_IDLE))
+		assert($stable(o_uart_tx));
+
+	initial	f_baud_count = 1'b0;
+	always @(posedge i_clk)
+	if (zero_baud_counter)
+		f_baud_count <= 0;
+	else
+		f_baud_count <= f_baud_count + 1'b1;
+
+	always @(posedge i_clk)
+		assert(f_baud_count < CLOCKS_PER_BAUD);
+
+	always @(posedge i_clk)
+	if (baud_counter != 0)
+		assert(o_busy);
+	// }}}
+
+	// {{{
+	initial	f_txbits = 0;
+	always @(posedge i_clk)
+	if (zero_baud_counter)
+		f_txbits <= { o_uart_tx, f_txbits[9:1] };
+
+	always @(posedge i_clk)
+	if (f_past_valid && !$past(i_reset)&& !$past(zero_baud_counter)
+			&& !$past(state==TXUL_IDLE))
+		assert(state == $past(state));
+
+	initial	f_bitcount = 0;
+	always @(posedge i_clk)
+	if ((!f_past_valid)||(!$past(f_past_valid)))
+		f_bitcount <= 0;
+	else if ((state == TXUL_IDLE)&&(zero_baud_counter))
+		f_bitcount <= 0;
+	else if (zero_baud_counter)
+		f_bitcount <= f_bitcount + 1'b1;
+
+	always @(posedge i_clk)
+		assert(f_bitcount <= 4'ha);
+
+	always @(*)
+	if (!o_busy)
+		assert(zero_baud_counter);
+
+	always @(posedge i_clk)
+	if ((i_wr)&&(!o_busy))
+		f_request_tx_data <= i_data;
+
+	assign	subcount = 10-f_bitcount;
+	always @(posedge i_clk)
+	if (f_bitcount > 0)
+		assert(!f_txbits[subcount]);
+
+	always @(posedge i_clk)
+	if (f_bitcount == 4'ha)
+	begin
+		assert(f_txbits[8:1] == f_request_tx_data);
+		assert( f_txbits[9]);
+	end
+
+	always @(posedge i_clk)
+		assert((state <= TXUL_STOP + 1'b1)||(state == TXUL_IDLE));
+
+	always @(posedge i_clk)
+	if ((f_past_valid)&&($past(f_past_valid))&&($past(o_busy)))
+		cover(!o_busy);
+	// }}}
+
+`endif	// FORMAL
+`ifdef	VERIFIC_SVA
+	reg	[7:0]	fsv_data;
+
+	//
+	// Grab a copy of the data any time we are sent a new byte to transmit
+	// We'll use this in a moment to compare the item transmitted against
+	// what is supposed to be transmitted
+	//
+	always @(posedge i_clk)
+	if ((i_wr)&&(!o_busy))
+		fsv_data <= i_data;
+
+	//
+	// One baud interval
+	// {{{
+	//
+	// 1. The UART output is constant at DAT
+	// 2. The internal state remains constant at ST
+	// 3. CKS = the number of clocks per bit.
+	//
+	// Everything stays constant during the CKS clocks with the exception
+	// of (zero_baud_counter), which is *only* raised on the last clock
+	// interval
+	sequence	BAUD_INTERVAL(CKS, DAT, SR, ST);
+		((o_uart_tx == DAT)&&(state == ST)
+			&&(lcl_data == SR)
+			&&(!zero_baud_counter))[*(CKS-1)]
+		##1 (o_uart_tx == DAT)&&(state == ST)
+			&&(lcl_data == SR)
+			&&(zero_baud_counter);
+	endsequence
+	// }}}
+
+	//
+	// One byte transmitted
+	// {{{
+	//
+	// DATA = the byte that is sent
+	// CKS  = the number of clocks per bit
+	//
+	sequence	SEND(CKS, DATA);
+		BAUD_INTERVAL(CKS, 1'b0, DATA, 4'h0)
+		##1 BAUD_INTERVAL(CKS, DATA[0], {{(1){1'b1}},DATA[7:1]}, 4'h1)
+		##1 BAUD_INTERVAL(CKS, DATA[1], {{(2){1'b1}},DATA[7:2]}, 4'h2)
+		##1 BAUD_INTERVAL(CKS, DATA[2], {{(3){1'b1}},DATA[7:3]}, 4'h3)
+		##1 BAUD_INTERVAL(CKS, DATA[3], {{(4){1'b1}},DATA[7:4]}, 4'h4)
+		##1 BAUD_INTERVAL(CKS, DATA[4], {{(5){1'b1}},DATA[7:5]}, 4'h5)
+		##1 BAUD_INTERVAL(CKS, DATA[5], {{(6){1'b1}},DATA[7:6]}, 4'h6)
+		##1 BAUD_INTERVAL(CKS, DATA[6], {{(7){1'b1}},DATA[7:7]}, 4'h7)
+		##1 BAUD_INTERVAL(CKS, DATA[7], 8'hff, 4'h8)
+		##1 BAUD_INTERVAL(CKS-1, 1'b1, 8'hff, 4'h9);
+	endsequence
+	// }}}
+
+	//
+	// Transmit one byte
+	// {{{
+	// Once the byte is transmitted, make certain we return to
+	// idle
+	//
+	assert property (
+		@(posedge i_clk)
+		(i_wr)&&(!o_busy)
+		|=> ((o_busy) throughout SEND(CLOCKS_PER_BAUD,fsv_data))
+		##1 (!o_busy)&&(o_uart_tx)&&(zero_baud_counter));
+	// }}}
+
+	// {{{
+	assume property (
+		@(posedge i_clk)
+		(i_wr)&&(o_busy) |=>
+			(i_wr)&&($stable(i_data)));
+
+	//
+	// Make certain that o_busy is true any time zero_baud_counter is
+	// non-zero
+	//
+	always @(*)
+		assert((o_busy)||(zero_baud_counter) );
+
+	// If and only if zero_baud_counter is true, baud_counter must be zero
+	// Insist on that relationship here.
+	always @(*)
+		assert(zero_baud_counter == (baud_counter == 0));
+
+	// To make certain baud_counter stays below CLOCKS_PER_BAUD
+	always @(*)
+		assert(baud_counter < CLOCKS_PER_BAUD);
+
+	//
+	// Insist that we are only ever in a valid state
+	always @(*)
+		assert((state <= TXUL_STOP+1'b1)||(state == TXUL_IDLE));
+	// }}}
+
+`endif // Verific SVA
+// }}}
+endmodule

Semaine_7/ESP32/leds_commands/IP/verilog/uart_rx_fifo.v

@@ -0,0 +1,56 @@
+module uart_rx_fifo #(
+	parameter CLK_FREQ = 27_000_000,
+	parameter BAUD_RATE = 115200,
+	parameter FIFO_SIZE = 8
+)(
+	input               clk,
+	input               rd_en,
+	output wire [7:0]	rd_data,
+	input               rx_pin,
+	output             	data_available
+);
+
+	// UART RX wires
+	wire [7:0] rx_data;
+	wire       rx_received;
+
+	// FIFO control
+	reg        wr_en;
+	wire       fifo_empty;
+	wire       fifo_full;
+
+	// UART Receiver instance
+	rxuartlite uart_rx_inst (
+        .i_clk(clk),
+        .i_reset(1'b0),
+        .i_uart_rx(rx_pin),
+        .o_wr(rx_received),
+        .o_data(rx_data)
+    );
+
+	// FIFO instance
+	fifo #(
+		.WIDTH(8),
+		.SIZE(FIFO_SIZE)
+	) fifo_inst (
+		.clk(clk),
+		.wr_en(wr_en),
+		.wr_data(rx_data),
+		.rd_en(rd_en),
+		.rd_data(rd_data),
+		.empty(fifo_empty),
+		.full(fifo_full)
+	);
+
+	assign data_available = ~fifo_empty;
+
+	// Écriture dans la FIFO uniquement si donnée reçue ET FIFO pas pleine
+	always @(posedge clk) begin
+		if (rx_received && !fifo_full) begin
+			wr_en <= 1'b1;
+		end else begin
+			wr_en <= 1'b0;
+		end
+	end
+	
+endmodule 

Semaine_7/ESP32/leds_commands/IP/verilog/uart_tx_fifo.v

@@ -0,0 +1,89 @@
+module uart_tx_fifo #(
+    parameter CLK_FREQ   = 27_000_000,
+    parameter BAUD_RATE  = 115200,
+    parameter FIFO_SIZE = 8
+)(
+    input               clk,
+    input               wr_en,
+    input [7:0]         wr_data,
+    output              tx_pin,
+    output              fifo_full
+);
+
+    // FIFO wires
+    wire [7:0] fifo_rd_data;
+    wire       fifo_empty;
+    reg        fifo_rd_en;
+
+    // UART wires
+    wire       tx_busy;
+    reg        uart_tx_enable;
+    reg [7:0]  uart_tx_data;
+
+    // FSM
+    typedef enum logic [1:0] {
+        IDLE,
+        WAIT_READY,
+        READ_FIFO,
+        SEND
+    } state_t;
+
+    state_t state = IDLE;
+
+    // FIFO instantiation
+    fifo #(
+        .WIDTH(8),
+        .SIZE(FIFO_SIZE)
+    ) fifo_inst (
+        .clk(clk),
+        .wr_en(wr_en),
+        .wr_data(wr_data),
+        .rd_en(fifo_rd_en),
+        .rd_data(fifo_rd_data),
+        .empty(fifo_empty),
+        .full(fifo_full)
+    );
+
+    // UART TX instantiation
+    txuartlite uart_tx_inst (
+        .i_clk(clk),
+        .i_reset(1'b0),
+        .i_wr(uart_tx_enable),
+        .i_data(uart_tx_data),
+        .o_uart_tx(tx_pin),
+        .o_busy(tx_busy)
+    );
+
+    always_ff @(posedge clk) begin
+        fifo_rd_en     <= 0;
+        uart_tx_enable <= 0;
+
+        case (state)
+            IDLE: begin
+                if (!fifo_empty)
+                    state <= WAIT_READY;
+            end
+
+            WAIT_READY: begin
+                if (!tx_busy) begin
+                    fifo_rd_en <= 1;
+                    uart_tx_data <= fifo_rd_data;
+                    state <= READ_FIFO;
+                end
+            end
+
+            READ_FIFO: begin
+                // fifo_rd_data sera valide ici
+                fifo_rd_en     <= 0;
+                uart_tx_enable <= 1;
+                state <= SEND;
+            end
+
+            SEND: begin
+                state <= IDLE;
+                uart_tx_enable <= 0;
+            end
+        endcase
+    end
+
+endmodule

Semaine_7/ESP32/leds_commands/constraints/fpga_wifi_led.cst

@@ -0,0 +1,21 @@
+IO_LOC "o_tx" 69;
+IO_PORT "o_tx" IO_TYPE=LVCMOS33 PULL_MODE=UP BANK_VCCIO=3.3;
+
+IO_LOC "i_rx" 70;
+IO_PORT "i_rx" IO_TYPE=LVCMOS33 PULL_MODE=UP BANK_VCCIO=3.3;
+
+IO_LOC "i_clk" 4;
+IO_PORT "i_clk" IO_TYPE=LVCMOS33 PULL_MODE=UP BANK_VCCIO=3.3;
+
+IO_LOC "o_leds[0]" 15;
+IO_PORT "o_leds[0]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8;
+IO_LOC "o_leds[1]" 16;
+IO_PORT "o_leds[1]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8;
+IO_LOC "o_leds[2]" 17;
+IO_PORT "o_leds[2]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8;
+IO_LOC "o_leds[3]" 18;
+IO_PORT "o_leds[3]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8;
+IO_LOC "o_leds[4]" 19;
+IO_PORT "o_leds[4]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8;
+IO_LOC "o_leds[5]" 20;
+IO_PORT "o_leds[5]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8;

Semaine_7/ESP32/leds_commands/project.bat

@@ -0,0 +1,9 @@
+@call c:\oss-cad-suite\environment.bat 
+@echo off
+
+mkdir runs
+
+if "%1"=="sim" call scripts\windows\simulate.bat
+if "%1"=="wave" call scripts\windows\gtkwave.bat
+if "%1"=="clean" call scripts\windows\clean.bat
+if "%1"=="build" call scripts\windows\build.bat

Semaine_7/ESP32/leds_commands/project.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# Charger l'environnement OSS CAD Suite
+source /home/louis/oss-cad-suite/environment
+
+mkdir -p runs
+
+case "$1" in
+  sim)
+    bash scripts/linux/simulate.sh
+    ;;
+  wave)
+    bash scripts/linux/gtkwave.sh
+    ;;
+  clean)
+    bash scripts/linux/clean.sh
+    ;;
+  build)
+    bash scripts/linux/build.sh
+    ;;
+  *)
+    echo "Usage: $0 {sim|wave|clean|build}"
+    ;;
+esac

Semaine_7/ESP32/leds_commands/scripts/linux/build.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# Aller à la racine du projet
+cd "$(dirname "$0")/../.." || exit 1
+
+# Config de base
+DEVICE="GW2AR-LV18QN88C8/I7"
+BOARD="tangnano20k"
+TOP="dht11_uart_top"
+CST_FILE="$TOP.cst"
+JSON_FILE="runs/$TOP.json"
+PNR_JSON="runs/pnr_$TOP.json"
+BITSTREAM="runs/$TOP.fs"
+
+# Créer le dossier runs si nécessaire
+mkdir -p runs
+
+echo "=== Étape 1 : Synthèse avec Yosys ==="
+yosys -p "read_verilog -sv src/verilog/$TOP.v IP/verilog/dht11_interface.v IP/verilog/uart_tx_fifo.v  IP/verilog/fifo.v IP/verilog/txuartlite.v; synth_gowin -top $TOP -json $JSON_FILE"
+if [ $? -ne 0 ]; then
+  echo "=== Erreur lors de la synthèse ==="
+  exit 1
+fi
+
+echo "=== Étape 2 : Placement & Routage avec nextpnr-himbaechel ==="
+nextpnr-himbaechel --json "$JSON_FILE" --write "$PNR_JSON" --device "$DEVICE" --vopt cst=constraints/"$CST_FILE" --vopt family=GW2A-18C
+if [ $? -ne 0 ]; then
+  echo "=== Erreur lors du placement/routage ==="
+  exit 1
+fi
+
+echo "=== Étape 3 : Packing avec gowin_pack ==="
+gowin_pack -d "$DEVICE" -o "$BITSTREAM" "$PNR_JSON"
+if [ $? -ne 0 ]; then
+  echo "=== Erreur lors du packing ==="
+  exit 1
+fi
+
+echo "=== Étape 4 : Flash avec openFPGALoader ==="
+sudo /etc/oss-cad-suite/bin/openFPGALoader -b "$BOARD" "$BITSTREAM"
+if [ $? -ne 0 ]; then
+  echo "=== Erreur lors du flash ==="
+  exit 1
+fi
+
+echo "=== Compilation et flash réussis ==="

Semaine_7/ESP32/leds_commands/scripts/linux/clean.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+echo "=== Nettoyage des fichiers générés ==="
+rm -rf runs/*

Semaine_7/ESP32/leds_commands/scripts/linux/gtkwave.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+echo "=== Lancement de GTKWave ==="
+gtkwave runs/sim.vcd
+echo "=== GTKWave terminé ==="

Semaine_7/ESP32/leds_commands/scripts/linux/simulate.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+echo "=== Simulation avec Icarus Verilog ==="
+
+OUT="runs/sim.vvp"
+TOP="tb_dht11"
+DIRS=("src/verilog" "tests/verilog")
+
+FILES=()
+for dir in "${DIRS[@]}"; do
+  for file in "$dir"/*.v; do
+    FILES+=("$file")
+  done
+done
+
+iverilog -g2012 -o "$OUT" -s "$TOP" "${FILES[@]}"
+vvp "$OUT"

Semaine_7/ESP32/leds_commands/scripts/linux/upload.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Aller à la racine du projet
+cd "$(dirname "$0")/../.." || exit 1
+
+# Config de base
+DEVICE="GW2AR-LV18QN88C8/I7"
+BOARD="tangnano20k"
+TOP="dht11_uart_top"
+CST_FILE="$TOP.cst"
+JSON_FILE="runs/$TOP.json"
+PNR_JSON="runs/pnr_$TOP.json"
+BITSTREAM="runs/$TOP.fs"
+
+# Créer le dossier runs si nécessaire
+mkdir -p runs
+
+echo "=== Étape 4 : Flash avec openFPGALoader ==="
+sudo /etc/oss-cad-suite/bin/openFPGALoader -b "$BOARD" "$BITSTREAM"
+if [ $? -ne 0 ]; then
+  echo "=== Erreur lors du flash ==="
+  exit 1
+fi
+
+echo "=== Compilation et flash réussis ==="

Semaine_7/ESP32/leds_commands/scripts/windows/build.bat

@@ -0,0 +1,47 @@
+@echo off
+setlocal
+
+rem === Aller à la racine du projet ===
+cd /d %~dp0\..\..
+echo Script lancé depuis : %cd%
+
+
+rem === Config de base ===
+set DEVICE=GW2AR-LV18QN88C8/I7
+set BOARD=tangnano20k
+set TOP=fpga_wifi_led
+set CST_FILE=%TOP%.cst
+set JSON_FILE=runs/%TOP%.json
+set PNR_JSON=runs/pnr_%TOP%.json
+set BITSTREAM=runs/%TOP%.fs
+
+rem === Créer le dossier runs si nécessaire ===
+if not exist ../runs (
+    mkdir ../runs
+)
+
+echo === Étape 1 : Synthèse avec Yosys ===
+yosys -p "read_verilog -sv src/verilog/%TOP%.v IP/verilog/uart_tx_fifo.v IP/verilog/uart_rx_fifo.v IP/verilog/fifo.v IP/verilog/txuartlite.v IP/verilog/rxuartlite.v; synth_gowin -top %TOP% -json %JSON_FILE%"
+if errorlevel 1 goto error
+
+echo === Étape 2 : Placement & Routage avec nextpnr-himbaechel ===
+nextpnr-himbaechel --json %JSON_FILE% --write %PNR_JSON% --device %DEVICE% --vopt cst=constraints/%CST_FILE% --vopt family=GW2A-18C
+if errorlevel 1 goto error
+
+echo === Étape 3 : Packing avec gowin_pack ===
+gowin_pack -d %DEVICE% -o %BITSTREAM% %PNR_JSON%
+if errorlevel 1 goto error
+
+echo === Étape 4 : Flash avec openFPGALoader ===
+openFPGALoader -b %BOARD% %BITSTREAM%
+if errorlevel 1 goto error
+
+echo === Compilation et flash réussis ===
+goto end
+
+:error
+echo === Une erreur est survenue ===
+
+:end
+endlocal
+pause

Semaine_7/ESP32/leds_commands/scripts/windows/clean.bat

@@ -0,0 +1,4 @@
+@echo off
+echo === Nettoyage du dossier runs ===
+rd /s /q runs
+mkdir runs

Semaine_7/ESP32/leds_commands/scripts/windows/gtkwave.bat

@@ -0,0 +1,3 @@
+@echo off
+echo === Lancement de GTKWave ===
+gtkwave runs/sim.vcd

Semaine_7/ESP32/leds_commands/scripts/windows/simulate.bat

@@ -0,0 +1,29 @@
+@echo off
+echo === Simulation avec Icarus Verilog ===
+setlocal enabledelayedexpansion
+
+:: Dossier de sortie
+set OUT=runs/sim.vvp
+
+:: Top-level testbench module
+set TOP=tb_dht11
+
+:: Répertoires contenant des fichiers .v
+set DIRS=src/verilog tests/verilog IP/verilog
+
+:: Variable pour stocker les fichiers
+set FILES=
+
+:: Boucle sur chaque dossier
+for %%D in (%DIRS%) do (
+    for %%F in (%%D\*.v) do (
+        set FILES=!FILES! %%F
+    )
+)
+
+:: Compilation avec Icarus Verilog
+iverilog -g2012 -o %OUT% -s %TOP% %FILES%
+
+endlocal
+
+vvp runs/sim.vvp

Semaine_7/ESP32/leds_commands/src/esp32/wifi_esp32.ino

@@ -0,0 +1,106 @@
+#include <WiFi.h>
+#include <WiFiManager.h> // Include WiFiManager library
+ 
+// TCP server port
+const uint16_t port = 1234;
+ 
+// TCP server object
+WiFiServer server(port);
+ 
+// TCP client object
+WiFiClient client;
+ 
+// Touch sensor settings
+const int touchPin = T0; // Use touch pin T0 (GPIO 4)
+const int touchThreshold = 30; // Adjust based on testing (lower value = touch detected)
+const unsigned long resetHoldTime = 5000; // 5 seconds to trigger reset
+unsigned long touchStartTime = 0;
+bool touchDetected = false;
+ 
+void setup() {
+  // Initialize Serial for UART communication (115200 baud)
+  Serial.begin(115200);
+  // Initialize WiFiManager
+  WiFiManager wifiManager;
+  // Check for touch sensor reset
+  if (checkTouchReset()) {
+    wifiManager.resetSettings();
+    Serial.println("WiFi settings reset due to touch sensor");
+    ESP.restart(); // Restart to apply reset
+  }
+  // Connect to WiFi using WiFiManager (creates AP if no saved credentials)
+  if (!wifiManager.autoConnect("ESP32_AP")) {
+    Serial.println("Failed to connect to WiFi and hit timeout");
+    ESP.restart();
+  }
+  Serial.println("WiFi connected");
+  Serial.print("IP address: ");
+  Serial.println(WiFi.localIP());
+ 
+  // Start TCP server
+  server.begin();
+  Serial.println("TCP server started on port " + String(port));
+}
+
+void loop() {
+  // Check for touch sensor reset
+  handleTouchReset();
+ 
+  // Check for incoming client connections
+  if (!client.connected()) {
+    client = server.available();
+    if (client) {
+      Serial.println("New client connected");
+    }
+  }
+ 
+  // Relay data from TCP client to UART
+  while (client.connected() && client.available()) {
+    char c = client.read();
+    Serial.write(c); // Send to UART
+  }
+ 
+  // Relay data from UART to TCP client
+  while (Serial.available() && client.connected()) {
+    char c = Serial.read();
+    client.write(c); // Send to TCP client
+  }
+ 
+  // Handle client disconnection
+  if (client && !client.connected()) {
+    Serial.println("Client disconnected");
+    client.stop();
+  }
+}
+ 
+// Function to check touch sensor at boot for reset
+bool checkTouchReset() {
+  int touchValue = touchRead(touchPin);
+  if (touchValue < touchThreshold) {
+    unsigned long startTime = millis();
+    while (touchRead(touchPin) < touchThreshold) {
+      if (millis() - startTime >= resetHoldTime) {
+        return true; // Touch held long enough, trigger reset
+      }
+    }
+  }
+  return false;
+}
+ 
+// Function to handle touch sensor reset during loop
+void handleTouchReset() {
+  int touchValue = touchRead(touchPin);
+  if (touchValue < touchThreshold && !touchDetected) {
+    touchDetected = true;
+    touchStartTime = millis();
+  } else if (touchValue >= touchThreshold && touchDetected) {
+    touchDetected = false; // Reset when touch is released
+  }
+ 
+  if (touchDetected && (millis() - touchStartTime >= resetHoldTime)) {
+    WiFiManager wifiManager;
+    wifiManager.resetSettings();
+    Serial.println("WiFi settings reset due to touch sensor");
+    ESP.restart(); // Restart to apply reset
+  }
+}

Semaine_7/ESP32/leds_commands/src/verilog/fpga_wifi_led.v

@@ -0,0 +1,134 @@
+`default_nettype none
+module fpga_wifi_led (
+    input i_clk,
+    input i_rx,
+    output o_tx,
+    output [5:0] o_leds
+);
+
+    // === PARAMÈTRES ===
+    localparam CLK_FREQ = 27_000_000;
+    localparam BAUD_RATE = 115200;
+    localparam FIFO_SIZE = 8;
+
+    // === SIGNAUX UART RX ===
+    wire [7:0] rx_data;
+    wire rx_data_available;
+    reg rx_rd_en;
+
+    // === SIGNAUX UART TX ===
+    reg [7:0] tx_data;
+    reg tx_wr_en;
+    wire tx_fifo_full;
+
+    // === SIGNAUX INTERNES ===
+    reg [5:0] leds_reg;
+    reg [1:0] state;
+    reg [7:0] received_byte;
+
+    // === ÉTATS DE LA FSM ===
+    localparam  IDLE = 2'd0,
+                WAIT_BYTE = 2'd1,
+                PROCESS_CMD = 2'd2,
+                SEND_RESPONSE = 2'd3;
+
+    // === INSTANCIATION UART RX FIFO ===
+    uart_rx_fifo #(
+        .CLK_FREQ(CLK_FREQ),
+        .BAUD_RATE(BAUD_RATE),
+        .FIFO_SIZE(FIFO_SIZE)
+    ) uart_rx_inst (
+        .clk(i_clk),
+        .rd_en(rx_rd_en),
+        .rd_data(rx_data),
+        .rx_pin(i_rx),
+        .data_available(rx_data_available)
+    );
+
+    // === INSTANCIATION UART TX FIFO ===
+    uart_tx_fifo #(
+        .CLK_FREQ(CLK_FREQ),
+        .BAUD_RATE(BAUD_RATE),
+        .FIFO_SIZE(FIFO_SIZE)
+    ) uart_tx_inst (
+        .clk(i_clk),
+        .wr_en(tx_wr_en),
+        .wr_data(tx_data),
+        .tx_pin(o_tx),
+        .fifo_full(tx_fifo_full)
+    );
+
+    // === ASSIGNATION DES LEDS ===
+    assign o_leds = ~leds_reg;
+
+    // === INITIALISATION ===
+    initial begin
+        leds_reg = 6'b000000;
+        state = IDLE;
+        rx_rd_en = 0;
+        tx_wr_en = 0;
+        tx_data = 8'h00;
+        received_byte = 8'h00;
+    end
+
+    // === MACHINE D'ÉTAT PRINCIPALE ===
+    always @(posedge i_clk) begin
+        // Désactiver les signaux de contrôle par défaut
+        rx_rd_en <= 0;
+        tx_wr_en <= 0;
+
+        case (state)
+            IDLE: begin
+                received_byte <= 8'h00;
+                
+                if (rx_data_available) begin
+                    state <= WAIT_BYTE;
+                end
+            end
+
+            WAIT_BYTE: begin
+                if (rx_data_available) begin
+                    rx_rd_en <= 1;
+                    received_byte <= rx_data;
+                    state <= PROCESS_CMD;
+                end
+            end
+
+            PROCESS_CMD: begin
+                // Vérifier la commande reçue
+                if (received_byte == 8'h01) begin
+                    // Allumer la LED 0
+                    leds_reg[0] <= 1;
+                    
+                    // Préparer la réponse
+                    state <= SEND_RESPONSE;
+                end else if (received_byte == 8'h02) begin
+                    // Éteindre la LED 0
+                    leds_reg[0] <= 0;
+                    
+                    // Préparer la réponse
+                    state <= SEND_RESPONSE;
+                end else begin
+                    // Commande non reconnue, éteindre toutes les LEDs
+                    leds_reg <= 6'b000000;
+                    state <= IDLE;
+                end
+            end
+
+            SEND_RESPONSE: begin
+                if (!tx_fifo_full) begin
+                    // Renvoyer le même byte reçu (0x01 ou 0x02)
+                    tx_data <= received_byte;
+                    tx_wr_en <= 1;
+                    state <= IDLE;
+                end
+            end
+
+            default: begin
+                state <= IDLE;
+            end
+
+        endcase
+    end
+
+endmodule

Semaine_7/ESP32/leds_commands/tests/pyhton/readSerial.py

@@ -0,0 +1,30 @@
+import serial
+import time
+
+# Configuration du port série
+ser = serial.Serial(
+    port='/dev/ttyUSB0',  # Remplace par ton port (ex : COM3 sous Windows)
+    baudrate=115200,
+    timeout=1  # En secondes
+)
+
+print("Lecture du port série... (Ctrl+C pour quitter)")
+
+try:
+    while True:
+        # Lire 2 octets
+        data = ser.read(2)
+
+        if len(data) == 2:
+            temperature = data[0]
+            humidite = data[1]
+            print(f"Température: {temperature}°C, Humidité: {humidite}%")
+        else:
+            print("Pas assez de données reçues.")
+
+        time.sleep(1)
+
+except KeyboardInterrupt:
+    print("\nArrêt du script.")
+finally:
+    ser.close()

Semaine_7/ESP32/leds_commands/tests/verilog/tb_dht11.v

@@ -0,0 +1,65 @@
+`timescale 1ns/1ps
+
+module tb_dht11;
+
+    reg clk = 0;
+    always #18.5 clk = ~clk; // Génère une clock 27 MHz
+
+    // === Registres ===
+    wire        io_dht11_sig;
+    reg         dht11_start;
+    wire        dht11_data_ready;
+    wire        dht11_busy;
+    wire [7:0]  dht11_temp_data;
+    wire [7:0]  dht11_hum_data;
+    wire        dht11_error;
+
+    // === Simulation du module DHT11 ===
+    dht11_model dht11_model (
+        .data(io_dht11_sig),
+        .clk(clk),
+        .rst_n(1'b1) // Reset non utilisé dans ce test
+    );
+
+    // === Module DHT11 INTERFACE ===
+    dht11_interface dht11_interface (
+        .i_clk(clk),
+        .io_dht11_sig(io_dht11_sig),
+        .i_start(dht11_start),
+        .o_dht11_data_ready(dht11_data_ready),
+        .o_busy(dht11_busy),
+        .o_temp_data(dht11_temp_data),
+        .o_hum_data(dht11_hum_data),
+        .o_dht11_error(dht11_error)
+    );
+
+    pullup(io_dht11_sig);
+
+    // === TEST SEQUENCE ===
+    initial begin
+        $dumpfile("runs/sim.vcd");
+        $dumpvars(0, tb_dht11);
+        dht11_start = 0;
+
+        $display("==== Start DHT11 Test ====");
+        
+        #100;
+        dht11_start = 1; // Démarre la lecture des données
+        $display("DHT11 start...");
+
+        wait(dht11_busy); // Attend que le module soit occupé
+        $display("DHT11 busy...");
+
+        dht11_start = 0;
+
+        wait(dht11_data_ready); // Attend que les données soient prêtes
+        $display("DHT11 data ready...");
+
+        $display("Température : %d.%d °C", dht11_temp_data);
+        $display("Humidité : %d.%d %%", dht11_hum_data);
+
+        $display("==== End DHT11 Test ====");
+        $finish;
+    end
+
+endmodule