PIC32MZEFH和FreeRTOS 10.0，在上下文切换时崩溃

我移植了一个相当大的代码库，包括Fieltos，它在PIC32 MX下工作得很好。我们的新处理器是PIC32 MZEFH。我已经更新了MZ最新的FrRetos 10版本，在中断发生后，我看到了一个崩溃。UART RX中断按照FreRotos的汇编代码示例执行，称为“MyAtAR1HANDLE”，但是代码在PurraseReX上下文中崩溃。调试器转到未知的地方。正常运行时，处理器只是重新启动。MX下的情况也一样，造成撞车的原因是什么呢？



      以下为原文

    I am porting a rather large codebase that included FreeRTOS which worked well under the PIC32MX.  Our new processor is the PIC32MZEFH.  I've updated to the latest FreeRTOS 10 version for the MZ, and I'm seeing a crash after an interrupt occurs.

The UART RX interrupt executes as per the assembly code example from FreeRTOS, the "MyUART1Handler" is called, but the code crashes in portRESTORE_CONTEXT.  The debugger goes off to somewhere unknown.  Running normally, the processor just reboots.  The same works though under the MX.

What could be the difference that's causing the crash?

ISRWrapperUART1Handler:
portSAVE_CONTEXT
jal MyUART1Handler
nop
portRESTORE_CONTEXT

.end ISRWrapperUART1Handler