From 888ebb9c44791e777f5e5792fe0b0c4ec56debdd Mon Sep 17 00:00:00 2001 From: ranchuan Date: Fri, 1 Nov 2024 17:32:33 +0800 Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0layout=20=E5=92=8Ccrc?= =?UTF-8?q?=E8=AE=A1=E7=AE=97?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- bin/bin_to_hex.py | 271 +++++++++++++++++++++++++++++++++++++++++++++- bin/crc.py | 129 ++++++++++++++++++++++ 2 files changed, 396 insertions(+), 4 deletions(-) create mode 100644 bin/crc.py diff --git a/bin/bin_to_hex.py b/bin/bin_to_hex.py index 5ae87f8..809bc6c 100644 --- a/bin/bin_to_hex.py +++ b/bin/bin_to_hex.py @@ -5,6 +5,7 @@ import struct import json from bin.log import myprint from bin.base import bin_path +from bin.crc import CRC32 # kunlun1,kunlun2,kunlun3的img类型 @@ -67,6 +68,260 @@ _PatternType={ + + +_layout_cfg=''' + +g_layout_f1_v0 + part_name offset size size(kB) note + SP 0x00000000 0x00008000 32 + SBL 0x00008000 0x00008000 32 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00006000 24 + LOG1 0x00018000 0x00001000 4 + PIB2 0x00019000 0x00006000 24 + LOG2 0x0001F000 0x00001000 4 + FW1 0x00020000 0x0006F000 444 + CUS 0x0008F000 0x00001000 4 + FW2 0x00090000 0x0006F000 444 + DUMP 0x00000000 0x00000000 0 not use + CAL 0x000FF000 0x00001000 4 +- +g_layout_f2_v0 + part_name offset size size(kB) note + SP 0x00000000 0x00008000 32 + SBL 0x00008000 0x00008000 32 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + PIB2 0x00019000 0x00007000 28 + RUN 0x00020000 0x000E0000 896 log part use the remaining space + FW1 0x00100000 0x00070000 448 + FW2 0x00170000 0x00070000 448 + CUS 0x001E0000 0x0001E000 120 + DUMP 0x001FE000 0x00001000 4 + CAL 0x001FF000 0x00001000 4 +- +g_layout_f2_v1 + part_name offset size size(kB) note + SBL 0x00000000 0x0000C000 48 + PIB1_EXT 0X0000C000 0X00002000 8 + PIB2_EXT 0X0000E000 0X00002000 8 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + PIB2 0x00019000 0x00007000 28 + RUN 0x00020000 0x000E0000 896 + FW1 0x00100000 0x00070000 448 + FW2 0x00170000 0x00070000 448 + DUMP 0x001E0000 0x00001000 4 + CUS 0x001E1000 0x0001E000 120 + CALI 0x001FF000 0x00001000 4 +- +g_layout_f2_v2 + part_name offset size size(kb) note + SBL 0x00000000 0x0000C000 48 + PIB1_EXT 0X0000C000 0X00002000 8 + PIB2_EXT 0X0000E000 0X00002000 8 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + PIB2 0x00019000 0x00007000 28 + RUN_CUS 0x00020000 0x00028000 160 + RUN_FW 0x00048000 0x000B8000 736 + CUS1 0x00100000 0x00018000 96 + FW1 0x00118000 0x00058000 352 + CUS2 0x00170000 0x00018000 96 + FW2 0x00188000 0x00058000 352 + RESERVED 0x001E0000 0x00001000 4 + CUST 0x001E1000 0x0001E000 120 + CALI 0x001FF000 0x00001000 4 +- +g_layout_f2_p_v0 + part_name offset size size(kB) note + SP 0x00000000 0x00008000 32 + SBL 0x00008000 0x00008000 32 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + PIB2 0x00019000 0x00007000 28 + FW1 0x00020000 0x000A0000 640 + LOG1 0x000C0000 0x00020000 128 + LOG2 0x000E0000 0x00020000 128 + FW2 0x00100000 0x000A0000 640 + CUS 0x001A0000 0x0005E000 376 + SP_FW1 0x001F0000 0x00000000 0 not use + PARAM2 0x001F7000 0x00000000 0 not use + DUMP 0x001FE000 0x00001000 4 + CAL 0x001FF000 0x00001000 4 +- +g_layout_f2_p_v1 + part_name offset size size(kB) note + SBL 0x00000000 0x00010000 64 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + PIB2 0x00019000 0x00007000 28 + FW1 0x00020000 0x000A0000 640 + LOG1 0x000C0000 0x00020000 128 + FW2 0x000E0000 0x000A0000 640 + LOG2 0x00180000 0x00020000 128 + DUMP 0x001A0000 0x00001000 4 + CUS 0x001A1000 0x0005E000 376 + CALI 0x001FF000 0x00001000 4 +- +g_layout_f4_v0 + part_name offset size size(kb) note + SP 0x00000000 0x00008000 32 + SBL 0x00008000 0x00008000 32 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + LOG1 0x00000000 0x00000000 0 not use + PIB2 0x00019000 0x00007000 28 + LOG2 0x00000000 0x00000000 0 not use + RUN 0x00020000 0x00160000 1408 log part use the remaining space + FW1 0x00180000 0x000C0000 768 + FW2 0x00240000 0x000C0000 768 + SP_FW1 0x00000000 0x00000000 0 not use + PARAM2 0x00000000 0x00000000 0 not use + SP_FW2 0x00000000 0x00000000 0 not use + DUMP 0x00000000 0x00000000 0 not use + CUS 0x00300000 0x000FF000 1020 + CAL 0x003FF000 0x00001000 4 +- +g_layout_f4_v1 + part_name offset size size(kb) note + SBL 0x00000000 0x00010000 64 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + PIB2 0x00019000 0x00007000 28 + RUN 0x00020000 0x00160000 1408 + FW1 0x00180000 0x000B0000 704 + FW2 0x00230000 0x000B0000 704 + PIB1_EXT 0x002E0000 0x0000F000 60 + PIB2_EXT 0x002EF000 0x0000F000 60 + DUMP 0x002FE000 0x00001000 4 + RESERVED 0x002FF000 0x00001000 4 + CUS 0x00300000 0x000FF000 1020 + CALI 0x003FF000 0x00001000 4 +- +g_layout_f4_p_v0 + part_name offset size size(kb) note + SP 0x00000000 0x00008000 32 + SBL 0x00008000 0x00008000 32 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + PIB2 0x00019000 0x00007000 28 + RUN 0x00020000 0x000FA000 1000 + LOG1 0x0011A000 0x00066000 408 + FW1 0x00180000 0x000FA000 1000 + LOG2 0x0027A000 0x00066000 408 + DUMP 0x002E0000 0x00001000 4 + RESERVED 0x002E1000 0x00001000 4 + SP_FW1 0x002E2000 0x0000F000 60 + SP_FW2 0x002F1000 0x0000F000 60 + CUS 0x00300000 0x000FF000 1020 + CAL 0x003FF000 0x00001000 4 + FW2 0x002E0000 0x00000000 0 not use + PARAM2 0x00000000 0x00000000 0 not use +- +g_layout_f4_p_v1 + part_name offset size size(kb) note + SBL 0x00000000 0x00010000 64 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + PIB2 0x00019000 0x00007000 28 + FW1 0x00020000 0x000FA000 1000 + LOG1 0x0011A000 0x00030000 192 + LOG2 0x0014A000 0x00030000 192 + RESERVED1 0x0017A000 0x00006000 24 + FW2 0x00180000 0x000FA000 1000 + PIB1_EXT 0x0027A000 0x0000F000 60 + PIB2_EXT 0x00289000 0x0000F000 60 + DUMP 0x00298000 0x00001000 4 + RESERVED2 0x00299000 0x00067000 412 + CUS 0x00300000 0x000FF000 1020 + CALI 0x003FF000 0x00001000 4 +- +g_layout_f4_p_v2 + part_name offset size size(kb) note + SBL 0x00000000 0x00010000 64 + PARAM 0x00010000 0x00001000 4 + OEM 0x00011000 0x00001000 4 + PIB1 0x00012000 0x00007000 28 + PIB2 0x00019000 0x00007000 28 + FW1-CUS 0x00020000 0x00080000 512 + FW1-PLC 0x000A0000 0x000E0000 896 + LOG1 0x00180000 0x00030000 192 + LOG2 0x001B0000 0x00030000 192 + FW2-CUS 0x001E0000 0x00080000 512 + FW2-PLC 0x00260000 0x000E0000 896 + PIB1_EXT 0x00340000 0x0000F000 60 + PIB2_EXT 0x0034F000 0x0000F000 60 + DUMP 0x0035E000 0x00001000 4 + CUST 0x0035F000 0x000A0000 640 + CALC 0x003FF000 0x00001000 4 +- +''' + + +_layout_list=[ + 'g_layout_f1_v0', + 'g_layout_f2_v0', + 'g_layout_f2_p_v0', + 'g_layout_f4_v0', + 'g_layout_f4_p_v0', + 'g_layout_f2_v1', + 'g_layout_f2_p_v1', + 'g_layout_f4_v1', + 'g_layout_f4_p_v1', + 'g_layout_f4_p_v2', + 'g_layout_f2_v2', +] + + + +# 根据layout index 找到 layout +def get_layout(index:int): + layout_len=len(_layout_list) + if(index>=layout_len): + return None + name=_layout_list[index] + layout=_layout_cfg.split('-') + for item in layout: + if(item.find(name)>=0): + part=item.split('\n') + break + part_dict_list:list[dict]=[] + for item in part: + sp=item.split() + if(len(sp)>=4) and sp[3].isdigit(): + # myprint(f"layout {item}") + d={ + 'name':sp[0], + 'offset':int(sp[1],base=16), + 'size':int(sp[2],base=16), + } + part_dict_list.append(d) + return part_dict_list + + +# 校验 当前地址是不是分区地址 +def check_part_addr(addr:int,part_list:list[dict]): + for item in part_list: + if(item.get('offset',None)==addr): + return item + return None + + + + + _PKT_HEADER_MAGIC_NO = 0x00005566 _IMG_HEADER_MAGIC_NO = 0xa4e49a17 @@ -228,13 +483,15 @@ def pkt_encrypt_check(data:bytearray): # 转化为hex文本 -def bin_to_hex(bin:bytearray,f,oem_file=None): +def bin_to_hex(bin:bytearray,f,oem_file=None,layout_index=None): all_size=len(bin) pack_size=32 turned=0 turned_old=0 out_text='' kunlun='' + if(layout_index is not None): + layout_list=get_layout(layout_index) if(pkt_header_check(bin)): out_text=tran_pkg_header(bin[0:96])+'\n' f.write(out_text) @@ -268,12 +525,17 @@ def bin_to_hex(bin:bytearray,f,oem_file=None): size=int(ret["imgSize"]) oem_bin=bin[turned_old+64:turned_old+64+size] oem_file.write(oem_bin) + if(layout_index is not None): + layout=check_part_addr(turned_old,layout_list) + if(layout is not None): + layout['crc32']=hex(CRC32(bin[turned_old:turned_old+layout['size']])) + f.write(str(layout).replace(',',' ')+'\n') out_text=f"[{hex(turned_old)}] {data.hex(' ')}\n" f.write(out_text) return kunlun -def bin_to_hex_file(bin_file_name:str,hex_file_name:str): +def bin_to_hex_file(bin_file_name:str,hex_file_name:str,layout_index:int): with open(bin_file_name,mode='rb') as f: bin=bytearray(f.read()) if(pkt_encrypt_check(bin)): @@ -287,7 +549,7 @@ def bin_to_hex_file(bin_file_name:str,hex_file_name:str): oem_name=hex_file_name[0:-8]+'-oem.bin' oem_name=os.path.normpath(oem_name) with open(oem_name,mode='wb+') as oem_f: - kl=bin_to_hex(bin,f,oem_f) + kl=bin_to_hex(bin,f,oem_f,layout_index) # 调用oem_tool 打印oem信息 oem_tool=os.path.join(bin_path(),f"{kl}_oem.exe") if(os.path.exists(oem_tool)): @@ -325,4 +587,5 @@ def clear_tmp(): # bin_to_hex.py input_file if __name__ == "__main__": - bin_to_hex_file(sys.argv[1],"work/"+sys.argv[1]+".txt") + bin_to_hex_file(sys.argv[1],"work/"+sys.argv[1]+".txt",int(sys.argv[2])) + # get_layout(0) diff --git a/bin/crc.py b/bin/crc.py new file mode 100644 index 0000000..2d3aef4 --- /dev/null +++ b/bin/crc.py @@ -0,0 +1,129 @@ +import os +import sys + + + + + + + +_CRC32_Table =[ + 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, + 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, + 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, + 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, + 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, + 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, + 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, + 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, + 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, + 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, + 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, + 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, + 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, + 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, + 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, + 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, + 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, + 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433, + 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, + 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, + 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, + 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, + 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, + 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, + 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, + 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, + 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, + 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, + 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, + 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, + 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, + 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, + 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, + 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, + 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, + 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, + 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, + 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, + 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, + 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, + 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, + 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, + 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, + 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, + 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, + 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, + 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, + 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, + 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, + 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, + 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, + 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, + 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, + 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, + 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, + 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, + 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, + 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, + 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, + 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, + 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, + 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, + 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, + 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D +] + + +_CRC16_Table= [ + 0x0000,0x1021,0x2042,0x3063,0x4084,0x50a5,0x60c6,0x70e7, + 0x8108,0x9129,0xa14a,0xb16b,0xc18c,0xd1ad,0xe1ce,0xf1ef, + 0x1231,0x0210,0x3273,0x2252,0x52b5,0x4294,0x72f7,0x62d6, + 0x9339,0x8318,0xb37b,0xa35a,0xd3bd,0xc39c,0xf3ff,0xe3de, + 0x2462,0x3443,0x0420,0x1401,0x64e6,0x74c7,0x44a4,0x5485, + 0xa56a,0xb54b,0x8528,0x9509,0xe5ee,0xf5cf,0xc5ac,0xd58d, + 0x3653,0x2672,0x1611,0x0630,0x76d7,0x66f6,0x5695,0x46b4, + 0xb75b,0xa77a,0x9719,0x8738,0xf7df,0xe7fe,0xd79d,0xc7bc, + 0x48c4,0x58e5,0x6886,0x78a7,0x0840,0x1861,0x2802,0x3823, + 0xc9cc,0xd9ed,0xe98e,0xf9af,0x8948,0x9969,0xa90a,0xb92b, + 0x5af5,0x4ad4,0x7ab7,0x6a96,0x1a71,0x0a50,0x3a33,0x2a12, + 0xdbfd,0xcbdc,0xfbbf,0xeb9e,0x9b79,0x8b58,0xbb3b,0xab1a, + 0x6ca6,0x7c87,0x4ce4,0x5cc5,0x2c22,0x3c03,0x0c60,0x1c41, + 0xedae,0xfd8f,0xcdec,0xddcd,0xad2a,0xbd0b,0x8d68,0x9d49, + 0x7e97,0x6eb6,0x5ed5,0x4ef4,0x3e13,0x2e32,0x1e51,0x0e70, + 0xff9f,0xefbe,0xdfdd,0xcffc,0xbf1b,0xaf3a,0x9f59,0x8f78, + 0x9188,0x81a9,0xb1ca,0xa1eb,0xd10c,0xc12d,0xf14e,0xe16f, + 0x1080,0x00a1,0x30c2,0x20e3,0x5004,0x4025,0x7046,0x6067, + 0x83b9,0x9398,0xa3fb,0xb3da,0xc33d,0xd31c,0xe37f,0xf35e, + 0x02b1,0x1290,0x22f3,0x32d2,0x4235,0x5214,0x6277,0x7256, + 0xb5ea,0xa5cb,0x95a8,0x8589,0xf56e,0xe54f,0xd52c,0xc50d, + 0x34e2,0x24c3,0x14a0,0x0481,0x7466,0x6447,0x5424,0x4405, + 0xa7db,0xb7fa,0x8799,0x97b8,0xe75f,0xf77e,0xc71d,0xd73c, + 0x26d3,0x36f2,0x0691,0x16b0,0x6657,0x7676,0x4615,0x5634, + 0xd94c,0xc96d,0xf90e,0xe92f,0x99c8,0x89e9,0xb98a,0xa9ab, + 0x5844,0x4865,0x7806,0x6827,0x18c0,0x08e1,0x3882,0x28a3, + 0xcb7d,0xdb5c,0xeb3f,0xfb1e,0x8bf9,0x9bd8,0xabbb,0xbb9a, + 0x4a75,0x5a54,0x6a37,0x7a16,0x0af1,0x1ad0,0x2ab3,0x3a92, + 0xfd2e,0xed0f,0xdd6c,0xcd4d,0xbdaa,0xad8b,0x9de8,0x8dc9, + 0x7c26,0x6c07,0x5c64,0x4c45,0x3ca2,0x2c83,0x1ce0,0x0cc1, + 0xef1f,0xff3e,0xcf5d,0xdf7c,0xaf9b,0xbfba,0x8fd9,0x9ff8, + 0x6e17,0x7e36,0x4e55,0x5e74,0x2e93,0x3eb2,0x0ed1,0x1ef0 +] + + +# CCITT +def CRC16(data:bytearray): + crc=0 + for counter in range(len(data)): + crc = (crc<<8) ^ _CRC16_Table[((crc>>8) ^ data[counter])&0x00FF] + return crc&0xffff + +def CRC32_Update(crc:int,data:bytearray): + for counter in range(len(data)): + crc = (crc >> 8) ^ _CRC32_Table[(crc^data[counter])&0x00FF] + return crc&0xffffffff + +def CRC32(data:bytearray): + crc= 0xFFFFFFFF^CRC32_Update(0xFFFFFFFF,data) + return crc&0xffffffff +