From c2216718041995c1dd890ad555becfe026746b29 Mon Sep 17 00:00:00 2001
From: SelfConfusion <1822250894@qq.com>
Date: Sun, 12 May 2024 22:09:23 +0800
Subject: [PATCH] add crop ip but not finish it

---
 Crop/crop.v | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 isp.v       |  5 +---
 2 files changed, 74 insertions(+), 4 deletions(-)
 create mode 100644 Crop/crop.v

diff --git a/Crop/crop.v b/Crop/crop.v
new file mode 100644
index 0000000..91cd862
--- /dev/null
+++ b/Crop/crop.v
@@ -0,0 +1,73 @@
+module crop #(
+    parameter IN_WIDTH = 1936 - 2,
+    parameter IN_HEIGHT = 1088 - 2,
+    parameter OFFSET_X = 8,
+    parameter OFFSET_Y = 4,
+    parameter OUT_WIDTH = 640,
+    parameter OUT_HEIGHT = 480
+    parameter COLOR_DEPTH = 8;
+) (
+    input clk,
+    input reset,
+
+    input in_en,
+    output reg in_que,
+    input [3 * COLOR_DEPTH - 1:0] data_in,
+
+    output reg out_en,
+    input out_que,
+    output reg [3 * COLOR_DEPTH - 1:0] data_out
+);
+    wire fifo_en;
+    wire fifo_full, fifo_empty;
+    reg [11:0] cnt_x, cnt_y;
+
+    async_fifo #(
+        .DSIZE(3 * COLOR_DEPTH),
+        .ASIZE(128)
+    ) fifo_image (
+        .wclk(clk),
+        .wrst_n(reset),
+        .rclk(clk),
+        .rrst_n(reset),
+
+        .winc(fifo_en),
+        .wdata(data_in),
+        .wfull(fifo_full),
+
+        .rinc(out_en),
+        .rdata(data_out),
+        .rempty(fifo_empty)
+    );
+
+    assign in_que = !fifo_full;
+    assign out_en = (out_que && !fifo_empty) ? 1 : 0;
+
+    always @(posedge clk or posedge reset) begin
+        if (reset) begin
+            in_que <= 0;
+            out_en <= 0;
+            data_out <= 0;
+
+            cnt_x <= 0;
+            cnt_y <= 0;
+
+        end
+        else begin
+            if (in_en) begin
+
+                cnt_x <= cnt_x + 1;
+                if (cnt_x >= (OFFSET_X + OUT_WIDTH)) begin
+                    cnt_x <= 0;
+                    if (cnt_y >= (OFFSET_Y + OUT_HEIGHT)) begin
+                        cnt_y <= 0;
+                    end
+                    else begin
+                        cnt_y <= cnt_y + 1;
+                    end
+                end
+            end
+        end
+    end
+    
+endmodule
\ No newline at end of file
diff --git a/isp.v b/isp.v
index 0d1cd05..b70fc75 100644
--- a/isp.v
+++ b/isp.v
@@ -57,10 +57,7 @@ module isp #(
         .data_out(scale_in_data)
     );
 
-    streamScaler #(
-        .DATA_WIDTH(COLOR_DEPTH),
-        .CHANNELS(3),
-    ) scaler (
+
 
     );