From a2b1389d4c195de12cc92b98bf2a71a0ed834bf5 Mon Sep 17 00:00:00 2001
From: dxl <64101226@qq.com>
Date: Fri, 9 Oct 2026 18:26:38 +0800
Subject: [PATCH] FPGA: hi_get_trace.v merged.

---
 fpga/hi_get_trace.v | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/fpga/hi_get_trace.v b/fpga/hi_get_trace.v
index 2b14a04d9..52dcf4638 100644
--- a/fpga/hi_get_trace.v
+++ b/fpga/hi_get_trace.v
@@ -156,10 +156,21 @@ begin
 
     ssp_clk <= ~clock_cnt[3];       // ssp_clk frequency = 13,56MHz / 16 = 847,5 kHz
 
+`ifdef WITH_TIMODE
+    // Toggle once every 8 ssp_clk cycles
+    // TI mode 7D112: starts with the TI frame start signal; the line is driven high at the (128-16)th ssp_clk cycle.
+    if(clock_cnt[6:0] == 7'd112)
+        ssp_frame <= 1'b1;
+
+    // Clear the frame signal at the new frame start (0th ssp_clk cycle)
+    if(clock_cnt[6:0] == 7'd0)
+        ssp_frame <= 1'b0;
+`else
     if (clock_cnt[6:4] == 3'b000)    // set ssp_frame for 0...31
         ssp_frame <= 1'b1;
     else
         ssp_frame <= 1'b0;
+`endif
 
 end