diff --git a/demo/iic/test.c b/demo/iic/test.c
index d1ec1d3..80357a4 100644
--- a/demo/iic/test.c
+++ b/demo/iic/test.c
@@ -45,12 +45,14 @@ void Test_iic() {
     {
         writeData[i] = rand() % 200;
     }
-    foreach(i in writeData) {
+    PRINT_ARRAY(writeData, "%3d", 16);
 
+    foreach(i in writeData) {
+        writeData[i] = rand() % 200;
     }
     PRINT_ARRAY(writeData, "%3d", 16);
     Buf_Print("<IIC> TX", writeData, len, 16);
-//    BufPrint("<IIC> TX", writeData, TYPE_T(writeData), len, 16);
+    BufPrint("<IIC> TX", writeData, TYPE_T(writeData), len, 16);
 
     SW_IIC_WL(dev, internalAddress, writeData, len);
     SW_IIC_RL(dev, internalAddress, readData, len, 1);