通过C++代码根据dbc文件生成一个blf文件
时间: 2024-03-04 09:47:53 浏览: 27
可以使用Canlib库来读取DBC文件,并使用Canlib的BLF库将数据写入BLF文件。以下是一个简单的示例代码,可以根据DBC文件生成BLF文件:
```
#include <iostream>
#include <canlib.h>
#include <sstream>
#include <fstream>
int main(int argc, char const *argv[])
{
if (argc < 3)
{
std::cerr << "Usage: " << argv[0] << " dbc_file blf_file\n";
return 1;
}
const char *dbc_file = argv[1];
const char *blf_file = argv[2];
canInitializeLibrary();
std::ifstream dbc_stream(dbc_file);
std::stringstream dbc_buffer;
dbc_buffer << dbc_stream.rdbuf();
canHandle hnd;
hnd = canOpenChannel(0, canOPEN_ACCEPT_VIRTUAL);
if (hnd < 0)
{
std::cerr << "canOpenChannel failed with error " << hnd << "\n";
return 1;
}
canIoCtl(hnd, canIOCTL_SET_BUS_PARAMS, &canBITRATE_500K, sizeof(canBITRATE_500K));
canStatus status;
status = canSetBusOutputControl(hnd, canDRIVER_NORMAL);
if (status != canOK)
{
std::cerr << "canSetBusOutputControl failed with error " << status << "\n";
return 1;
}
status = canSetAcceptanceFilter(hnd, canFILTER_ACCEPT_ALL);
if (status != canOK)
{
std::cerr << "canSetAcceptanceFilter failed with error " << status << "\n";
return 1;
}
status = canBusOn(hnd);
if (status != canOK)
{
std::cerr << "canBusOn failed with error " << status << "\n";
return 1;
}
canMessage msg = {};
msg.id = 0x123;
msg.len = 8;
msg.flags = canMSG_STD;
msg.data[0] = 0x11;
msg.data[1] = 0x22;
msg.data[2] = 0x33;
msg.data[3] = 0x44;
msg.data[4] = 0x55;
msg.data[5] = 0x66;
msg.data[6] = 0x77;
msg.data[7] = 0x88;
canWriteWait(hnd, &msg, 1000);
canBusOff(hnd);
canClose(hnd);
canUnloadLibrary();
return 0;
}
```
这个示例代码创建了一个CAN通道,将数据写入CAN总线并关闭通道。可以根据需要修改消息的ID、数据和长度。然后,可以将这些消息用Canlib的BLF库写入BLF文件。可以参考Canlib的文档以了解如何使用BLF库。
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