11..3.5.

Other Control Setting

CPVR is the enhancement mode for resistance measuring. It is set to 1 to improve the linearity when

measuring resistance.

12. Application sample

Example Network setting:

Mode

NETA

NETB

NETC

NETD

ADC

88h

00h

93h

57h

OPAMP+ADC

88h

E0h

93h

57h

Demo Assembly code for Digital Interface:

;===========================

; FS511_RW.ASM

version 0.0

; FS511 Read/Write use FS9822

; Edit by Jong

2003/6/27

;===========================

Addr_bf EQU EAH

RW_bf

EQU AL

Rd_cnt1 EQU counter0

Rd_cnt2 EQU counter1

CS_

EQU 3

; Port3 bit 3

SK_

EQU 2

; Port3 bit 2

DI_

EQU 1

; Port3 bit 1

DO_

EQU 0

; Port3 bit 0

FS511_PT

EQU PT3

FS511_PTEN EQU PT3EN

FS511_PTPU EQU PT3PU

Status

EQU 4

Work

EQU 5

C

EQU 1

;-------------------------------------------

; user define macro

;-------------------------------------------

dly macro

nop

endm

cs_0 macro

bcf FS511_PT,3

dly

endm

cs_1 macro

bsf FS511_PT,3

dly

endm

sk_0 macro

bcf FS511_PT,2

dly

endm

sk_1 macro

; 3.2us

bsf FS511_PT,2

dly

endm

di_0 macro

bcf FS511_PT,1

dly

endm

di_1 macro

bsf FS511_PT,1

dly

endm

sk_pls

macro

sk_1

sk_0

endm

Wr511 macro d1,d2

movlfd1,Addr_bf

movlfd2,RW_bf

call _511W

endm

Rd511 macro d1

movlfd1,Addr_bf

call _511R

endm

;-------------------------------------------

; Initial of port

;-------------------------------------------

511_ini:

bsf FS511_PTEN,CS_

bsf FS511_PTEN,SK_

bsf FS511_PTEN,DI_

bcf FS511_PTEN,DO_

bsf FS511_PTPU,DO_

bsf FS511_PT,CS_

return