I use 10Mhz crystal for the LF2401A.
I wrote simple test program and i watch the XF pin frequency.
TEST_PROG:
LDP #SCSR1>>7
SPLK #0C4H,SCSR1 ; PLL 4
SPLK #0AH,SCSR2
SPLK #01H,SCSR4
LOOP: SETC XF
NOP
NOP
CLRC XF
B LOOP
I see 800nanosec clock pulses on the XF pin. But I must see 200nsec clock. Because i set the pll for 4.
(Total loop commands need 8 cpu clock, 10Mhz*4/8=5Mhz =>200nsec)
I can not see any effect If i change the #0C4H value of SPLK #0C4H,SCSR1
I try 0c4, 02C4H, 06C4H.
SCSR1 address is 7018H.
Why pll not working?
( I use zero wait state for codes )
