I've added system clock rate change in void SISProducer (void) function of SIS3801.c in /adaqfs/home/a-onl/scaler/SIS3801_left and /adaqfs/home/a-onl/scaler/SIS3801_right and /adaqfs/home/a-onl/scaler/SIS3801_bbite:
sysClkEnable(); logMsg("setClkRate: %i %i\n",sysClkRateSet(5000),sysClkRateGet(),0,0,0,0);
So that the delay time will not too long for 1KHz. right now taskDelay(n) equal to n*0.2ms(n*1/5000) delay.