Microchip added a MISRA check function in MPLAB X 5.45 which is just a plugin for the free Cppcheck and for me it works pretty well. In the further versions of MPLAP X the MISRA check was gone. In MPLAB X 6.0 it was reintroduced, but requires a 499 $ license to use it in combination with a code coverage tool. Is there any plugin to integrate just Cppcheck in MPLAB X or NetBeans?
The only chance to ingegrate it, is to buy a licence for MPLAB® Analysis tool.
It supports all Microchip MCU, MPU and CEC devices and offers a code coverage feature and a Motor Industry Software Reliability Association (MISRA®) check in the IDE.