Fujitsu MB90390 Series Hardware Manual page 336

CHAPTER 18 8/10-BIT A/D CONVERTER
●
Coding example
BAPL
BAPM
BAPH
ISCS
IOAL
IOAH
DCTL
DCTH
DDR6
ADER0
ICR10
ADCS0
ADCS1
ADCR0
ADCR1
TMCSR1L EQU
TMCSR1H EQU
TMRL1L
TMRL1H
;-----Main program---------------------------------------------------------------
START:
LOOP:
308
EQU 000100H
EQU 000101H
EQU 000102H
EQU 000103H
EQU 000104H
EQU 000105H
EQU 000106H
EQU 000107H
EQU 000016H
EQU 00000CH
EQU 0000BAH
EQU 000034H
EQU 000035H
EQU 000036H
EQU 000037H
000068H
000069H
EQU 003902H
EQU 003903H
CODE CSEG
AND CCR,#0BFH
MOV ICR10,#08H
MOV BAPL,#00H
MOV BAPM,#06H
MOV BAPH,#00H
MOV ISCS,#19H
MOV IOAL,#36H
MOV IOAH,#00H
MOV DCTL,#0CH
MOV DDR6,#00000000B
MOV ADER0,#00001000B ;Sets P63/AN3 as analog input.
MOV ADCS0,#0DBH
MOV ADCS1,#0A8H
MOVW TMRL1L,#0320H
MOV TMCSR1H,#00H
MOV TMCSR1L,#12H
MOV TMCSR1L,#13H
MOV ILM,#07H
OR CCR,#40H
MOV A,#00H
MOV A,#01H
BRA LOOP
;Lower buffer address pointer
;Middle buffer address pointer
;Upper buffer address pointer
2
;EI OS status register
;Lower I/O address register
;Upper I/O address register
;Lower data counter
;Upper data counter
;Port 6 direction register
;Analog input enable register
;Interrupt control register for A/D Converter
;A/D control status register
;
;A/D data register
;
;Lower control status register 1
;
;16-bit reload register 1
;
;Assumes that the stack pointer (SP) has already
;been initialized.
;Disables interrupts.
;Interrupt level: 0 (highest priority) + EI
;Sets the address to which conversion data is stored.
;(Uses 600 to 617 .)
H H
;
;Transfers word data, adds 1 to the address,
;transfers from I/O to memory, then ends by a
;resource request.
;Sets the address of the analog data register as the
;transfer source address pointer.
;Transfers only channel 3 twelve times by
;Sets P60 to P67 as input.
;Stop conversion mode. Converts AN3 CH.
;Activates the 16-bit timer, starts A/D conversion,
;and enables interrupts.
;Sets the timer value to 800 (320
;Sets the clock source to 125 ns and disables
;external trigger.
;Disables timer output, disables interrupts, and
;enables reload.
;Activates the 16-bit timer.
;Sets ILM in PS to level 7.
;Enables interrupts.
;Endless loop
2
OS.
2
EI OS
), 100 ?s.
H