I think I am having a brain lag. Perhaps you can help to solve it.
In the demo_gpio.c from https://github.com/sifive/freedom-e-sdk/releases/tag/v1.0.3 is a timer interrupt implemented. Why is the interrupt time 3 seconds, when its 1.5*clock_frequency? Should it not be 1.5 seconds?
#define RTC_FREQUENCY 32768
// Set the machine timer to go off in 3 seconds.
volatile uint64_t * mtime = (uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIME);
volatile uint64_t * mtimecmp = (uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIMECMP);
uint64_t now = mtime;
uint64_t then = now + 1.5RTC_FREQUENCY;
*mtimecmp = then;
My first thought was it could be the rtc_scale, but it is set to 0.
Thank you for your time and help