File "/home/wdv4szh/.local/lib/python3.8/site-packages/can/io/blf.py", line 515, in _add_object obj_header = OBJ_HEADER_V1_STRUCT.pack(TIME_ONE_NANS, 0, 0, max(timestamp, 0)) struct.error: argument out of range
时间: 2023-12-22 16:05:48 浏览: 29
这个错误可能是由于时间戳超出了OBJ_HEADER_V1_STRUCT的最大值造成的。OBJ_HEADER_V1_STRUCT是一个结构体,它规定了数据包的头部格式。在这个错误中,最后一个参数max(timestamp, 0)超出了OBJ_HEADER_V1_STRUCT规定的范围。解决此错误的方法可能是将时间戳限制在OBJ_HEADER_V1_STRUCT的范围内,或者修改OBJ_HEADER_V1_STRUCT的定义,以适应更大的时间戳。你可以仔细查看OBJ_HEADER_V1_STRUCT的定义和使用情况,以便更好地理解和解决这个问题。
相关问题
wdv4szh@SZH6-C-000AV:~/jw_code/can-tools$ python3 can_martix.py ldf is not supported xls is not supported Traceback (most recent call last): File "can_martix.py", line 4, in <module> db = canmatrix.formats.load("path/to/your/arxml/file.arxml", "arxml") File "/home/wdv4szh/.local/lib/python3.8/site-packages/canmatrix/formats/__init__.py", line 88, in load dbs = module_instance.load(file_object, **options) # type: ignore File "/home/wdv4szh/.local/lib/python3.8/site-packages/canmatrix/formats/arxml.py", line 1937, in load ea.open(file) File "/home/wdv4szh/.local/lib/python3.8/site-packages/canmatrix/formats/arxml.py", line 78, in open self.tree = lxml.etree.parse(filename) File "src/lxml/etree.pyx", line 3519, in lxml.etree.parse File "src/lxml/parser.pxi", line 1839, in lxml.etree._parseDocument File "src/lxml/parser.pxi", line 1865, in lxml.etree._parseDocumentFromURL File "src/lxml/parser.pxi", line 1769, in lxml.etree._parseDocFromFile File "src/lxml/parser.pxi", line 1163, in lxml.etree._BaseParser._parseDocFromFile File "src/lxml/parser.pxi", line 601, in lxml.etree._ParserContext._handleParseResultDoc File "src/lxml/parser.pxi", line 711, in lxml.etree._handleParseResult File "src/lxml/parser.pxi", line 638, in lxml.etree._raiseParseError OSError: Error reading file 'path/to/your/arxml/file.arxml': failed to load external entity "path/to/your/arxml/file.arxml" wdv4szh@SZH6-C-000AV:~/jw_code/can-tools$
根据您提供的错误信息,看起来在加载ARXML文件时出现了问题。错误消息中指示无法读取文件 'path/to/your/arxml/file.arxml',因为它无法找到外部实体。
请确保您提供的文件路径是正确的,并且文件实际存在于指定的位置。您需要将 `"path/to/your/arxml/file.arxml"` 替换为实际的文件路径。
以下是修正后的代码示例:
```python
from canmatrix import *
# 加载ARXML文件
db = canmatrix.formats.load("/home/wdv4szh/jw_code/hello_world/adcc_someip_services_interfaces_test.arxml", "arxml")
# 定义输出C++代码的文件路径
output_file = "/home/wdv4szh/jw_code/hello_world/mytest.cpp"
# 生成C++代码
with open(output_file, "w") as f:
f.write(db.as_c_source())
print("ARXML转换为C++代码成功!")
```
请将 `"/home/wdv4szh/jw_code/hello_world/adcc_someip_services_interfaces_test.arxml"` 替换为实际的ARXML文件路径。
如果您仍然遇到问题,请确保您的文件路径正确,并检查文件是否存在。如果问题仍然存在,请提供更多详细信息,以便我可以更好地帮助您解决问题。
编译这些警告怎么处理/home/wdv4szh/jw_code/cs75_chery/vehicledataconversion/dbcConvert/src/CanDataConversion.cpp:992:42: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[128]’ [-Wformat=] 992 | "Begin TriggerBlock %*s %s %d %d:%d:%lf %*s %d", | ~^ | | | char* 993 | &monthStr, &day, &hour, &minute, &second, &year); | ~~~~~~~~~ | | | char (*)[128] /home/wdv4szh/jw_code/cs75_chery/vehicledataconversion/dbcConvert/src/CanDataConversion.cpp:1000:42: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[128]’ [-Wformat=] 1000 | "Begin TriggerBlock %*s %s %d %d:%d:%lf %d", | ~^ | | | char* 1001 | &monthStr, &day, &hour, &minute, &second, &year); // 解析字符串为时间结构体 | ~~~~~~~~~ | | | char (*)[128]
这些警告是由于代码中的格式化字符串与传递的参数类型不匹配导致的。可以尝试使用正确的参数类型来解决这些警告。
对于第一个警告,应该将字符串参数改为指向字符数组的指针,而不是指向字符数组的指针数组,例如:
```c++
char monthStr[128];
sprintf("Begin TriggerBlock %*s %s %d %d:%d:%lf %*s %d",
width, "", monthStr, day, hour, minute, second, year);
```
对于第二个警告,也应将字符串参数改为指向字符数组的指针,例如:
```c++
char monthStr[128];
sprintf("Begin TriggerBlock %*s %s %d %d:%d:%lf %d",
width, "", monthStr, day, hour, minute, second, year);
```