Oscillator question and measurement

[Acetronics2]

Results of the test ...

output freq is exactly that expected ... and that MPSIM shows ....

111.1 Khz with a 8 Mhz Xtal
277.7 Khz with a 20 Mhz Xtal
666.5 Khz with 48 Mz @ Clock
833.1 Khz with ... 60Mhz ( poor USB clock ! )
looks a bit over 1Mhz with ... 80Mhz ( poor ... etc )

#CONFIG

    __CONFIG    _CONFIG1L, _PLLDIV_3_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L  
                            ;              ;                      ; USB clock source comes from the 96 MHz PLL divided by 2
                            ;              ; [OSC1/OSC2 Src: /1][96 MHz PLL Src: /2]
                            ; 1/2 prescale 


    __CONFIG    _CONFIG1H, _FOSC_HSPLL_HS_1H & _FCMEN_OFF_1H & _IESO_OFF_1H 
                            ;                  ;               ; Oscillator Switchover mode disabled
                            ;                  ; Fail-Safe Clock Monitor disabled
                            ; HS oscillator, PLL enabled, HS used by USB
    __CONFIG    _CONFIG2L, _PWRT_ON_2L & _BOR_ON_2L  & _BORV_2_2L  & _VREGEN_ON_2L   
    __CONFIG    _CONFIG2H, _WDT_OFF_2H 
    __CONFIG    _CONFIG3H, _MCLRE_ON_3H & _LPT1OSC_OFF_3H & _PBADEN_OFF_3H & _CCP2MX_ON_3H 
    __CONFIG    _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _ICPRT_OFF_4L  & _XINST_OFF_4L & _DEBUG_OFF_4L
      
    __CONFIG    _CONFIG5L, _CP0_OFF_5L & _CP1_OFF_5L & _CP2_OFF_5L & _CP3_OFF_5L
    __CONFIG    _CONFIG5H, _CPB_OFF_5H & _CPD_OFF_5H
    __CONFIG    _CONFIG6L, _WRT0_OFF_6L & _WRT1_OFF_6L & _WRT2_OFF_6L & _WRT3_OFF_6L 
    __CONFIG    _CONFIG6H, _WRTB_OFF_6H & _WRTC_OFF_6H & _WRTD_OFF_6H 
    __CONFIG    _CONFIG7L, _EBTR0_OFF_7L & _EBTR1_OFF_7L &_EBTR2_OFF_7L &_EBTR3_OFF_7L 
    __CONFIG    _CONFIG7H, _EBTRB_OFF_7H    

         
#ENDCONFIG

trisa = 0
trisb = 0
trisc = 0
trisd = 0
lata = 0
latb = 0
latc = 0
latd = 0

Start:
Latb.1 = ! Latb.1
GOTO start
END

some surely will throw me everything that can fly .... LOL !

sooo ... getting 1 Mhz output looks a bit too much though !!! - gives 72 Mhz @ Clock - 18Mhz Xtal and PLL x 4 ; that looks real hard overclocking for such chips ...
MAY BE POSSIBLE, but with very light loads on the output ...

I did it ... so any idiot can do it too ...

the 4550 did not die ... really nice chip, isn't it ???

Alain

PS: this "timeout" really is a shame, Lester ....