frequency question [abandoned]

[salviador]

See section 8.1 in the family data sheet. fcy = fosc / 2.
Setting fcy=40 means you should have fosc = 80

Hi ,

I change this code in setting file:

Code:

        .equ     FCY,         40000000
        .equ     BAUDRATE,     115200
        .equ    BLTIME,        3000

and in ds30loader.s file I change this for work PLL at 40Mips:

Code:

;------------------------------------------------------------------------------
; Init
;------------------------------------------------------------------------------
        clr        WDOERASE
;    _PLLPRE = 0;
;    _PLLDIV = 74;
;    _PLLPOST = 0;
;    _DOZE = 0;
;    while(OSCCONbits.LOCK!=1) {};

        bclr CLKDIV,#PLLPRE0        
        bclr CLKDIV,#PLLPRE1        
        bclr CLKDIV,#PLLPRE2        
        bclr CLKDIV,#PLLPRE3        
        bclr CLKDIV,#PLLPRE4        

        bclr PLLFBD,#PLLDIV0
        bset PLLFBD,#PLLDIV1
        bclr PLLFBD,#PLLDIV2
        bset PLLFBD,#PLLDIV3
        bclr PLLFBD,#PLLDIV4
        bclr PLLFBD,#PLLDIV5
        bset PLLFBD,#PLLDIV6
        bclr PLLFBD,#PLLDIV7
        bclr PLLFBD,#PLLDIV8

        bclr CLKDIV,#PLLPOST0
        bclr CLKDIV,#PLLPOST1

        bclr CLKDIV,#DOZE0
        bclr CLKDIV,#DOZE1
        bclr CLKDIV,#DOZE2
waitPLLl:
        btsc OSCCON,#LOCK
        bra     waitPLLl                

        ;        
        ;bset    TRISB, #TRISB14         ;make input (datasheet pg 157)
        ;bset    AD1PCFGL, #PCFG9        ;analog pin to digital
        ;bset    AD1PCFGL, #PCFG10        ;analog pin to digital

But not work

Happy New Years