diff --git a/src/fpga/api.cpp b/src/fpga/api.cpp
index ca3c80b14748c0b7fe0493f71b2cbdcdfd6f19bb..4a1617b4024b38b420b4d9983477970ef30a6081 100644
--- a/src/fpga/api.cpp
+++ b/src/fpga/api.cpp
@@ -12,33 +12,18 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#include <errno.h>
+#include "api.h"
 #include <fcntl.h>
-#include <pthread.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
 #include <algorithm>
-#include <cmath>
-#include <cstdio>
 #include <cstring>
-#include <vector>
-
-#include "api.h"
 #include "bias_scale.h"
-#include "common/enforce.h"
-#include "common/types.h"
 #include "filter.h"
 #include "image.h"
 
 #define FPGA_TEST_MODE
-#ifdef FPGA_TEST_MODE
-#include "common/log.h"
-#endif
 
 namespace paddle_mobile {
 namespace fpga {
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index f2229a1bfcace48427f0b3dde2c79782fb1a6149..bfc9fb3eb3e835ea3aebf549f579b451bcb422e8 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -35,6 +35,9 @@ elseif("FPGAnets" IN_LIST NET)
 
     ADD_EXECUTABLE(test-fpga-concat-op fpga/test_concat_op.cpp test_helper.h  test_include.h)
     target_link_libraries(test-fpga-concat-op paddle-mobile)
+
+    ADD_EXECUTABLE(test-format-data fpga/test_format_data.cpp test_helper.h  test_include.h)
+    target_link_libraries(test-format-data paddle-mobile)
 elseif("mobilenetssd" IN_LIST NET)
     # gen test
     ADD_EXECUTABLE(test-mobilenetssd net/test_mobilenet+ssd.cpp test_helper.h  test_include.h executor_for_test.h)
diff --git a/test/fpga/test_format_data.cpp b/test/fpga/test_format_data.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..0fa3c23d2af6220959d434a6805adc9a7ae984a5
--- /dev/null
+++ b/test/fpga/test_format_data.cpp
@@ -0,0 +1,49 @@
+/* Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#include <iostream>
+#include "../test_helper.h"
+#include "../test_include.h"
+#include "fpga/api.h"
+
+namespace frame = paddle_mobile::framework;
+namespace fpga = paddle_mobile::fpga;
+using std::cout;
+using std::endl;
+
+int main() {
+  std::vector<int> dims{1, 1, 3, 3};
+  std::vector<float> elements{1, 2, 3, 4, 5, 6, 7, 8, 9};
+  frame::DDim ddim = frame::make_ddim(dims);
+  frame::Tensor image(elements, ddim);
+  int num = image.numel();
+  float *data_ptr = image.mutable_data<float>();
+
+  for (int i = 0; i < num; i++) {
+    cout << data_ptr[i] << " ";
+  }
+  cout << endl;
+
+  fpga::format_image(&image);
+  data_ptr = image.mutable_data<float>();
+
+  for (int i = 0; i < 48; i++) {
+    cout << data_ptr[i] << " ";
+  }
+  cout << endl;
+  auto dd = image.dims();
+  cout << dims[0] << dims[1] << dims[2] << dims[3] << endl;
+
+  return 0;
+}