diff --git a/picosoc/spiflash_tb.v b/picosoc/spiflash_tb.v
index ce2e949..f300373 100644
--- a/picosoc/spiflash_tb.v
+++ b/picosoc/spiflash_tb.v
@@ -53,8 +53,8 @@ module testbench;
 	);
 
 	localparam [23:0] offset = 24'h100000;
-	localparam [31:0] word0 = 32'h 01300293;
-	localparam [31:0] word1 = 32'h 00502223;
+	localparam [31:0] word0 = 32'h 00000093;
+	localparam [31:0] word1 = 32'h 00000193;
 
 	reg [7:0] rdata;
 	integer errcount = 0;
@@ -291,7 +291,7 @@ module testbench;
 		xfer_qspi_wr(offset[15:8]);
 		xfer_qspi_wr(offset[7:0]);
 		xfer_qspi_wr(8'h a5);
-		xfer_dummy;
+		repeat (8) xfer_dummy;
 		xfer_qspi_rd; expect(word0[7:0]);
 		xfer_qspi_rd; expect(word0[15:8]);
 		xfer_qspi_rd; expect(word0[23:16]);
@@ -308,7 +308,7 @@ module testbench;
 		xfer_qspi_wr(offset[15:8]);
 		xfer_qspi_wr(offset[7:0]);
 		xfer_qspi_wr(8'h ff);
-		xfer_dummy;
+		repeat (8) xfer_dummy;
 		xfer_qspi_rd; expect(word0[7:0]);
 		xfer_qspi_rd; expect(word0[15:8]);
 		xfer_qspi_rd; expect(word0[23:16]);
@@ -326,7 +326,7 @@ module testbench;
 		xfer_qspi_ddr_wr(offset[15:8]);
 		xfer_qspi_ddr_wr(offset[7:0]);
 		xfer_qspi_ddr_wr(8'h a5);
-		xfer_dummy;
+		repeat (8) xfer_dummy;
 		xfer_qspi_ddr_rd; expect(word0[7:0]);
 		xfer_qspi_ddr_rd; expect(word0[15:8]);
 		xfer_qspi_ddr_rd; expect(word0[23:16]);
@@ -343,7 +343,7 @@ module testbench;
 		xfer_qspi_ddr_wr(offset[15:8]);
 		xfer_qspi_ddr_wr(offset[7:0]);
 		xfer_qspi_ddr_wr(8'h ff);
-		xfer_dummy;
+		repeat (8) xfer_dummy;
 		xfer_qspi_ddr_rd; expect(word0[7:0]);
 		xfer_qspi_ddr_rd; expect(word0[15:8]);
 		xfer_qspi_ddr_rd; expect(word0[23:16]);