c - PIC32 WDT 复位不适用于某些 PIC32

Question

我有 PIC32 复位功能:

  void reset_cpu(void)
  {
        WDTCON=0x8000;
        EnableWDT(); // enable the WDT 
        ClearWDT(); 
        while(1){};
  }

它适用于 PIC32MX360F512L，但不适用于 PIC32MX695F512L。它永远旋转。谁能告诉我原因，或建议另一种重置处理器的方法？

Answer 1

如果你正在使用 plib.h，你可以简单地调用这个函数:

void reset_cpu(void)
{
    SoftReset();
    while(1){};
}

这具有触发即时重置的优势。来自 reset.h:

How it works: The following steps are performed by this function:

• Step 1 - Execute "unlock" sequence to access the RSWRST register.
• Step 2 - Write a '1' to RSWRST.SWRST bit to arm the software reset.
• Step 3 - A Read of the RSWRST register must follow the write. This action triggers the software reset, which should occur on the next clock cycle.

请记住，plib 已过时，很快就会从 MPLAB XC32 中删除。新设计值得考虑 Harmony:http://www.microchip.com/mplabharmony