use strict; use warnings; sub crc16_ccitt { my ($data) = @_; my $crc = 0xFFFF; foreach my $byte (unpack('C*', $data)) { $crc ^= ($byte << 8); for (my $i = 0; $i < 8; $i++) { if ($crc & 0x8000) { $crc = ($crc << 1) ^ 0x1021; } else { $crc <<= 1; } } } return $crc & 0xFFFF; } sub convert_to_frames { my ($fw_filename) = @_; open(my $fw_fh, '<:raw', $fw_filename) or die "Failed to open file: $!"; binmode($fw_fh); my $frame_size = 2048; my $frame_header = pack('CCCCvCC', 0x0, 0x00, 0x08, 0x00, 0x0000, 0x00); my $frame_footer = pack('CCCCvCC', 0x1, 0x00, 0x08, 0x00, 0x0000, 0x00); my $main_frame_number = 0; my $data_frame_number = 0; my @frames; while (read($fw_fh, my $buffer, $frame_size)) { if ($data_frame_number == 0) { substr($frame_header, 1, 1, pack('C', $main_frame_number)); } my $data_frame_header = pack('CC', 0x2, $data_frame_number); my $crc_header = pack('v', crc16_ccitt($frame_header)); my $crc_data = pack('v', crc16_ccitt($data_frame_header . $buffer)); my $frame = $frame_header . $data_frame_header . $buffer . $crc_header . $crc_data . "\x00\x00"; push @frames, $frame; $data_frame_number++; if ($data_frame_number >= 2047) { $data_frame_number = 0; $main_frame_number++; } } close($fw_fh); return \@frames; } sub write_frames_to_txt { my ($frames, $output_filename) = @_; open(my $txt_fh, '>', $output_filename) or die "Failed to open file: $!"; foreach my $frame (@$frames) { print $txt_fh unpack('H*', $frame), "\n"; # Write frame as hexadecimal string } close($txt_fh); } my $fw_filename = 'example.fw'; my $output_filename = 'frames.txt'; my $frames = convert_to_frames($fw_filename); write_frames_to_txt($frames, $output_filename); print "Conversion completed successfully.\n";

这段代码是之前给出的示例代码，用于将fw文件按照指的帧格式转换为txt文件。可以将示例代码中的`example.f`替换为实际的fw文件名，并将输出的txt文件名指定为`frames.txt`。

示例代码中，我们定义了两个辅助函数`crc16_ccitt`和`convert_to_frames`，以及一个主函数`write_frames_to_txt`。函数`crc16_ccitt`用于计算CRC-16/CCITT的校验值，函数`convert_to_frames`用于将fw文件按照指定的帧格式转换为帧的数组，函数`write_frames_to_txt`用于将帧数组写入txt文件中。

在主程序中，我们指定输入的fw文件名和输出的txt文件名，然后调用`convert_to_frames`函数将fw文件转换为帧数组，最后调用`write_frames_to_txt`函数将帧数组写入txt文件。

请注意，在运行代码之前，请确保已经安装了Perl解释器，并且将示例代码中的文件名替换为实际的文件名。