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dibaotian · Jan 22, 2021 · f7ff1ec · f7ff1ec
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diff --git a/README.md b/README.md
@@ -2,8 +2,24 @@
 
 ### This project is to create different length test vector for xilinx xrt mutiprocess test.
 
-#### 1 create dedicated length random vector
-#### 2 calculate the crc32
-#### 3 save to file
+
 
 ### create_crc_data.py
+#### 1 create specify length random test vector(file)
+#### 2 calculate the crc32
+#### 3 save the crc file to file
+#### the data will be reserved in the data/ folder with the .dat suffix
+
+#### Usage: python create_crc_data.py <data_length>
+#### data_length could be byte//Kilobyte/Megabyte
+#### example:
+#### python create_crc_data.py 64    --create a 64byte file and calculate crc
+#### python create_crc_data.py 2K    --create a 2Kbyte file and calculate crc
+#### python create_crc_data.py 5M    --create a 5Mbyte file and calculate crc
+
+### create_deploy_pic_crc.py
+#### calculate the input .jpg file crc32 result, the result will be reserved with _crc32.dat subffix
+#### the test vector reserved in the testbench/ folder
+#### Usage: python create_deploy_pic_crc.py <input_file>
+#### example:
+#### python create_deploy_pic_crc.py testbench/800p_1.jpg
diff --git a/create_crc_data.py b/create_crc_data.py
@@ -24,7 +24,6 @@ def generate_random_str(length):
     print(type(base_str))
     print ("base_str %s" % len(base_str))
     n=len(base_str)-1
-    # n=61
 
     for i in range(int(length)):
         random_str+=base_str[random.randint(0,n)]