Interrupt Response Delay During IFC Access on T1024

[hankjeon]

I am using a T1024 processor, with an external interrupt signal (IRQ0) as the RTOS tick, and the IFC for accessing an I/O board. However, when performing continuous write operations on the I/O board, I observe a delay in the interrupt response. Specifically, the interrupt signal is activated, but the ISR is called approximately IFC 10-cycles later.

Could you please advise on potential causes for this delay and suggest ways to mitigate this issue?

[Bio_TICFSL]

Hello,

You will have to check the RTOS, because the T1024 still work normal.

Regards

[hankjeon]

I'm wondering if there's a way to set priorities between accessing IFC and interrupts.