HT45F4MA datasheet(103/145 Pages) HOLTEK

номер детали	HT45F4MA

подробное описание детали	Power Bank Flash MCU

PDF	145 Pages

Scroll/Zoom	100%

производитель	HOLTEK [Holtek Semiconductor Inc]

домашняя страница	http://www.holtek.com

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103 / 145 page

Rev. 1.20

102

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Rev. 1.20

103

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HT45F4MA/HT45FH4MA/HT45FH4MA-1

Power Bank Flash MCU

HT45F4MA/HT45FH4MA/HT45FH4MA-1

Power Bank Flash MCU

Example: using the interrupt method to detect the end of conversion

clr ADE

; disable ADC interrupt

mov a,03H

mov ADCR1,a

; select fSYS/8 as A/D clock and switch off 1.25V

Clr ADOFF

mov a,0Fh

; setup ACERL to configure pins AN0~AN3

mov ACERL,a

mov a,01h

mov ADCR0,a

; enable and connect AN0 channel to A/D converter

Start_conversion:

clr START

; high pulse on START bit to initiate conversion

set START

; reset A/D

clr START

; start A/D

clr ADF

; clear ADC interrupt request flag

set ADE

; enable ADC interrupt

set EMI

; enable global interrupt

; ADC interrupt service routine

ADC_ISR:

mov acc_stack,a

; save ACC to user defined memory

mov a,STATUS

mov status_stack,a

; save STATUS to user defined memory

mov a,ADRL

; read low byte conversion result value

mov adrl_buffer,a

; save result to user defined register

mov a,ADRH

; read high byte conversion result value

mov adrh_buffer,a

; save result to user defined register

EXIT_INT_ISR:

mov a,status_stack

mov STATUS,a

; restore STATUS from user defined memory

mov a,acc_stack

; restore ACC from user defined memory

reti

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