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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45F4M датащи(PDF) 96 Page - Holtek Semiconductor Inc |
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HT45F4M датащи(HTML) 96 Page - Holtek Semiconductor Inc |
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96 / 138 page  Rev. 1.10 96 �an�a�� 1�� �01� Rev. 1.10 97 �an�a�� 1�� �01� HT45F4M Lithium Battery Backup Power ASSP MCU HT45F4M Lithium Battery Backup Power ASSP MCU • Example:usingtheinterruptmethodtodetecttheendofconversion 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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