Timer.2 interrupt does not set bit in INTERRUPT register
Posted: Sun Jun 24, 2018 3:26 pm
Hi,
I would like to use Timer.2 CPU interrupt. It is priority level 5 interrupt (not C servicable).
I am initializating it like this:
CPU enters level 5 interrupt vector. There I check that bit 16 in INTENABLE and INTERRUPT registers is set. But when I do
a0 contains 0x0 (no interrupts triggered). Isn't it strange? The only interrupt that does not set bit in INTERRUPT register should be NMI.
I would like to use Timer.2 CPU interrupt. It is priority level 5 interrupt (not C servicable).
I am initializating it like this:
Code: Select all
void System_Time_Init()
{
uint32_t ccount;
__asm__ __volatile__ ("rsr.ccount %0" : "=r"(ccount));
ccount += 10000;
__asm__ __volatile__ ("wsr.ccompare2 %0" :: "r"(ccount));
uint32_t intenable;
__asm__ __volatile__ ("rsr.intenable %0" : "=r"(intenable));
intenable |= 1u << 16u;
__asm__ __volatile__ ("wsr.intenable %0" :: "r"(intenable));
}Code: Select all
rsr.interrupt a0