修正测试用例里的代码错误,看波形应该是正确了

tb/shinTest/ShinTopSpiTb.v

@@ -475,10 +475,19 @@ end
   reg [7:0] exChangeRego;
   reg [7:0] exChangeRegi;
 
-
+  reg [11:0] transCnt;
+  reg [11:0] byteCnt;
+  reg [2:0] bitCnt;
+`ifndef OLD_SPI_SUPPORT
+  reg spi_1to4 = 1;
+`endif
 
   assign spi_mosi = exChangeRego[7];
+`ifndef OLD_SPI_SUPPORT
+  assign qspi_mosi = (spi_1to4 & byteCnt < 4)? {3'h0, exChangeRego[7]}:exChangeRego[7:4];
+`else
   assign qspi_mosi = exChangeRego[7:4];
+`endif
 
   wire [3:0] qspi_mux_miso = `QSPI_MUX_MISO_INIT;
     //( qspi_miso[4*0+3:4*0] & ~{4{spi_csn[ 0]}}) |
@@ -524,12 +533,6 @@ end
   reg [11:0] length;
   reg [16:0] idx;
 
-  reg [11:0] transCnt;
-  reg [11:0] byteCnt;
-  reg [2:0] bitCnt;
-`ifndef OLD_SPI_SUPPORT
-  reg spi_1to4 = 1;
-`endif
 
 
 always @(posedge clock) begin
@@ -561,7 +564,7 @@ always @(negedge sck) begin
 `else
       //当单线转4线的协议生效时，且传输命令+地址，使用单线
       //否则使用接口的固定模式
-      if (spi_1to4 & transCnt < 4) begin
+      if (spi_1to4 & byteCnt < 4) begin
         exChangeRego <= exChangeRego << 1;
       end else begin
         exChangeRego <= isQspi ? exChangeRego << 4 : exChangeRego << 1;
@@ -589,7 +592,7 @@ always @(posedge sck) begin
         bitCnt <= ~bitCnt;
 `else
         //当单线转4线的协议生效时，且传输命令+地址，使用单线;数据使用4线
-        if ((transCnt < 4) & (spi_1to4)) begin
+        if ((byteCnt < 4) & (spi_1to4)) begin
           bitCnt <= bitCnt + 1;
         end else begin
           bitCnt <= ~bitCnt;
@@ -652,7 +655,7 @@ always @(posedge sck) begin
         end
       end else begin
         //字节数小于4个字节，且启动了QSPI的1线命令4线数据
-        if ((transCnt < 4) & (spi_1to4)) begin
+        if ((byteCnt < 4) & (spi_1to4)) begin
           exChangeRegi <= isQspi ? {exChangeRegi[6:0], qspi_mux_miso[0]} : {exChangeRegi[6:0], spi_mux_miso};
         end else begin
           exChangeRegi <= isQspi ? {exChangeRegi[3:0], qspi_mux_miso} : {exChangeRegi[6:0], spi_mux_miso};