PROCESSOR-SDK-AM62X: Interrupts cannot be disabled by calling HwiP_disable()

Hello, 

Thanks for your patience.

I am able to replicate the issue at my end and able to find the root cause for it.

The HwiP_disable() API is internally calling the _set_interrupt_priority() API which disable all the interrupt with urgency lower than a certain level and leave the higher-urgency interrupts not disabled at all for M4F core.

In HwiP_disable API for M4F core is calling the API in below specified manner which is only disabling the interrupt having priority less than or equal to 7.

_set_interrupt_priority((7U) << (HwiP_NVIC_PRI_SHIFT))

Please update the HwiP_disable API with below code.

uintptr_t HWI_SECTION HwiP_disable(void)
{
    return (uintptr_t)_set_interrupt_priority((1U) << (HwiP_NVIC_PRI_SHIFT));
}

The API will be found at ${MCU+SDK}\source\kernel\nortos\dpl\m4\HwiP_armv7m.c file. After updating the file with above mentioned changes rebuild the libraries.

Run the below command from ${MCU+SDK}\source\kernel\nortos directory.

• Clean the library.

gmake -f makefile.am62x.m4f.ti-arm-clang PROFILE=debug clean
gmake -f makefile.am62x.m4f.ti-arm-clang PROFILE=release clean

• Rebuild the library.

gmake -f makefile.am62x.m4f.ti-arm-clang PROFILE=debug
gmake -f makefile.am62x.m4f.ti-arm-clang PROFILE=release

Rebuild the application.

After performing the above mentioned steps you will be able to disable all the interrupts expect the interrupt which has priority 0.

Regards,

Tushar

Hello,

Thanks for your confirmation.

Happy to help

Regards,

Tushar