USB HID Bootloader拒绝再工作了吗？

你好，去年，我用Microchip的和声自动构建提供的引导加载程序，它是USB HID引导加载程序。它工作得很好。然而，由于严重的硬盘崩溃，我不得不重新安装操作系统和所有的软件，当我重新编译并上传相同的代码到微控制器时，USB甚至根本没有被检测到，并且在PC端没有检测活动。OTLoad的工作原理：微控制器：PIC32 MZ2048 EFH064（所有D+和D线都是正确的），MPLAB和谐1.07.01MPLAB XC32 1.40MPLAB IDV3.40（截至2016年5月），我仔细检查了其余的和声配置文件，它没有差别，但是，当我不在时，它不再工作了。重新编译并上传。使用以前安装的旧HEX文件，我成功地检测到了。我有什么遗漏了吗？振荡器的设置是正确的，并且如果整个事件都没有被检测到，那么在USB初始化代码中一定会遗漏某些东西，或者振荡器设置可能不正确。如果需要，我会提供更多的细节。期待大家的意见。



      以下为原文

    Hello there,

Around last year, I had used Microchip's HARMony to automatically build the provided bootloader, which is the USB HID Bootloader. It works very well. However, due to a severe hard disk crash, I had to reinstall the OS and all the software, and when I recompile and upload the same code to the microcontroller, the USB does not even get detected at all, and there is no detection activity at the PC side.

Here is the system details when the USB HID bootloader works:

Microcontroller: PIC32MZ2048EFH064 (all the D+ and D- lines are correct as it works before)
MPLAB Harmony 1.07.01
MPLAB XC32 1.40
MPLAB IDE v3.40 (as of May 2016)

I double checked the rest of the Harmony configuration file, and it has no differences, however, it doesn't work again when I recompile it and upload it. Using the old HEX file I had from the previous installation, I managed to get it detected.

Is there something I left out there? The oscillator settings are correct and it seems that if the whole thing is not even detected, something must be missing in the USB initialization codes or the oscillator settings might be incorrect.

I will furnish you with more details if requested. Looking forward to the opinions.