?? timings.20
字號:
;
;Input the frequency of operation of the device in the in MHz (cell H2) 20 MHz
;Then choose Save as from the file menu and then save as a tab delimited file.
;Type in the Filename TIMINGS.H and save it in the include subdir in the flash tools directory.
;Resulting cycle time: 50 nsec
;
; Note: You must still select the clock input and PLL prescale constant in VAR.H to
; generate this clock frequency.
;
;
; Parameter spec in nsec Parameter cycles Safety factor Resulting cycle delay parm
Tph_P .set 13 ; 500 nsec 10 5 13
T_pvsu .set 1 ; 100 nsec 2 1 1
T_pva_e .set 9 ; 300 nsec 6 5 9
T_psu_p .set 7 ; 300 nsec 6 3 7
;T_prog ; 2000 nsec 40 0 38
T_prog_e1 .set 18 ; 20 0 18
T_prog_e2 .set 18 ; 20 0 18
; ;
; ;
; ;
T_esu_er .set 13 ; 500 nsec 10 5 13
T_eh_er .set 35 ; 1500 nsec 30 7 35
T_eva_e .set 2 ; 100 nsec 2 2 2
T_cva_cm .set 8 ; 400 nsec 8 2 8
T_csu_cm .set 20 ; 1000 nsec 20 2 20
T_ch_cm .set 5 ; 300 nsec 6 1 5
; ; Long delay parm = (cycles -108)/106
ERASE_PULSE .set 94 ; 500 micro sec 10000 0 94
CMPCT_PULSE .set 94 ; 500 micro sec 10000 0 94
; ;
MX_PCNT .set 250 ; 250 pulses ====
MX_ECNT .set 2500 ; 2500 pulses ====
MX_CMPCT .set 2500 ; 2500 pulses ====
DLOOP .set 100 ; 100 cyles 100 =====
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