150 lines
3.6 KiB
Python
150 lines
3.6 KiB
Python
import shutil
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import sys
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import os
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import prebuild as time
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# 定义app和boot文件路径(没有尾缀)
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APP_FILE_SRC = "./Objects/app/checker_gen1_app"
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BOOT_FILE_SRC = "./Objects/app/checker_gen1_boot"
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# APP_FILE_DST = "./Objects/checker_gen1_app"
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APP_FILE_DST = "./python/file/checker_gen1_app"
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BOOT_FILE_DST = "./Objects/checker_gen1_boot"
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# 找到指定后缀的文件
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def find_type(fix:str):
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path = os.getcwd()
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#print(path)
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list=os.listdir(path)
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file_list=[]
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for i in list:
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if(i[-len(fix):]==fix):
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file_list.append(i)
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return file_list
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# 把ext_name打包到name之后
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def pack_file(name,ext_name):
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with open(name, "ab") as f:
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data=bytearray(256)
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data[4:len(ext_name)+4]=bytearray(ext_name,"utf-8")
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with open(ext_name,"rb") as g:
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g.seek(0, os.SEEK_END)
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size=g.tell()+256
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g.seek(0, os.SEEK_SET)
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data[0]=size&0xff
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data[1]=(size>>8)&0xff
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data[2]=(size>>16)&0xff
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data[3]=(size>>24)&0xff
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print("name:",ext_name,"size=",size)
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f.write(data)
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f.write(g.read())
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def crc32(data:bytearray):
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temp=0
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crc=0xffffffff
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i=0
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if(len(data)%4!=0):
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return 0
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while(i<len(data)):
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temp=data[i]|(data[i+1]<<8)|(data[i+2]<<16)|(data[i+3]<<24)
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i+=4
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for j in range(32):
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if((crc^temp)&0x80000000)!=0:
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crc=0x04c11db7^(crc<<1)
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else:
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crc<<=1
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temp<<=1
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crc&=0xffffffff
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return crc
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# app扇区地址为 0x08020000
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# 运行地址为 0x08020000
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# 添加一个128byte为本程序添加的数据头
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# 数据头定义：
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# 固件大小(4byte,不包含文件头)
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# 打包时间(20byte,字符串,本程序创建的时间)
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# CRC(4byte,整个固件的crc,计算crc不包含文件头)
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# 本机IP地址(4byte,按字节为单位依次存储ip地址)
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# 主机IP地址(4byte,同上)
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# 主机TCP端口(4byte)
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# 与主机的通信接口(8byte,字符串)
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# 不足128byte的补0
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# 填充指定个数的byte
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def arr_byte_copy(byte:int,num:int):
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t=bytearray()
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for i in range(num):
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t.append(byte)
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return t
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# int转数组
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def arr_from_int(num:int):
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return bytearray([num&0xff,(num>>8)&0xff,(num>>16)&0xff,(num>>24)&0xff])
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# 字符串转数组，不足填充0
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def arr_from_str(txt:str,num:int):
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t=bytearray(txt.encode(encoding="utf-8"))
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t+=arr_byte_copy(0,num-len(t))
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return t
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# ip地址转数组
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def arr_from_ip(ip:str):
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nums=ip.split('.')
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t=bytearray()
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t.append(int(nums[0]))
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t.append(int(nums[1]))
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t.append(int(nums[2]))
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t.append(int(nums[3]))
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return t
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# 创建数据头
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def creat_head(data:bytearray,date:str):
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head=bytearray()
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head+=arr_from_int(len(data))
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head+=arr_from_str(date,20)
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head+=arr_from_int(crc32(data))
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head+=arr_from_ip("192.168.80.10")
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head+=arr_from_ip("192.168.80.100")
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head+=arr_from_int(7777)
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head+=arr_from_str("utcp",8)
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head+=arr_byte_copy(0,128-len(head))
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# print(head)
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return head
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def main():
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date=time.get_date()
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src=APP_FILE_SRC+".bin"
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dst=APP_FILE_DST+"_"+date+".pkt"
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if not os.path.exists(src):
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print(src+' File Error!!!')
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else:
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if os.path.exists(dst):
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os.remove(dst)
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file = open(src,"rb")
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data = file.read()
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print("File Size is :", len(data))
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file.close()
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head=creat_head(data,time.get_time())
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data=head+data
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with open(dst,"wb") as f:
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f.write(data)
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print(dst+' File copy success.')
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if __name__=="__main__":
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main()
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