Please include the source files in the attachment to your project and call "INTH_InitHandler();" along with HWI setup to see if the peripheral event could trigger ARM GIC interrupt, such as follows:
......
Hwi_Params hwiParams;
Hwi_Params_init(&hwiParams);
Hwi_create(96+32, timer8Isr, &hwiParams, NULL); // expected to run on timer8 int
INTH_InitHandler();
......
This function will enable global GIC event and configure edge/level triggering type of the GIC events.
Please note that this is not formal package supported by TI. We are still working with BIOS team to find the root cause for this. But you can give a try to see if it could fix your issue without blocking project development.
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