Техника микропроцессорных систем в коммутации. Проектирование микропроцессорных систем на базе микроконтроллеров AVR фирмы Atmel. Горохин В.Н. - 37 стр.

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ɉɨɪɹɞɨɤ ɜɵɩɨɥɧɟɧɢɹ ɥɚɛɨɪɚɬɨɪɧɨɣ ɪɚɛɨɬɵ
ɇɟɨɛɯɨɞɢɦɨ ɜɵɩɨɥɧɢɬɶ ɜɫɟ ɧɟɨɛɯɨɞɢɦɵɟ ɨɩɟɪɚɰɢɢ ɫ ɩɪɨɟɤɬɨɦ Lab_6.prj ɢ
ɩɪɨɝɪɚɦɦɨɣ Lab6.asm ɜɫɪɟɞɟ VMLab.
ɋɨɞɟɪɠɚɧɢɟ ɨɬɱɟɬɚ
Ɉɬɱɟɬ ɩɨ ɩɪɨɞɟɥɚɧɧɨɣ ɥɚɛɨɪɚɬɨɪɧɨɣ ɪɚɛɨɬɟ ɞɨɥɠɟɧ ɫɨɞɟɪɠɚɬɶ:
ɫɬɪɭɤɬɭɪɧɭɸ ɫɯɟɦɭ ɚɥɝɨɪɢɬɦɚ ɩɪɨɝɪɚɦɦɵ ɧɚ ɥɚɛɨɪɚɬɨɪɧɭɸ ɪɚɛɨɬɭ;
ɫɯɟɦɭ ɷɥɟɤɬɪɢɱɟɫɤɭɸ ɩɪɢɧɰɢɩɢɚɥɶɧɭɸ ɪɚɡɪɚɛɨɬɚɧɧɨɝɨ ɭɫɬɪɨɣɫɬɜɚ;
ɬɟɤɫɬ ɩɪɨɝɪɚɦɦɵ ɧɚ ɹɡɵɤɟ ɚɫɫɟɦɛɥɟɪɚ ɢɥɢ ɋɂ (ɪɚɫɩɟɱɚɬɤɚ ɮɚɣɥɨɜ *c,
*asm);
ɪɚɫɩɟɱɚɬɤɚ ɮɚɣɥɚ ɩɪɨɟɤɬɚ (*.prj);
ɪɟɡɭɥɶɬɚɬɵ ɦɨɞɟɥɢɪɨɜɚɧɢɹ (ɨɤɧɨ VMLab ɫ ɡɚɩɭɳɟɧɧɨɣ ɩɪɨɝɪɚɦɦɨɣ ɢ
ɪɟɡɭɥɶɬɚɬɚɦɢ ɜɵɱɢɫɥɟɧɢɣ).
Ʉɨɧɬɪɨɥɶɧɵɟ ɜɨɩɪɨɫɵ
1. ȼɯɨɞɧɵɟ ɫɢɝɧɚɥɵ ɚɧɚɥɨɝɨ-ɰɢɮɪɨɜɨɝɨ ɩɪɟɨɛɪɚɡɨɜɚɬɟɥɹ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟ-
ɪɚ ATmega16.
2. ɍɩɪɚɜɥɟɧɢɟ ɦɭɥɶɬɢɩɥɟɤɫɨɪɨɦ ɜɯɨɞɧɵɯ ɫɢɝɧɚɥɨɜ ɞɥɹ ADC ɦɢɤɪɨɤɨɧ-
ɬɪɨɥɥɟɪɚ ATmega16.
3. Ɂɚɞɚɧɢɟ ɪɟɠɢɦɚ 8- ɢ 10-ɪɚɡɪɹɞɧɨɝɨ ɩɪɟɨɛɪɚɡɨɜɚɧɢɹ ADC (ɛɢɬ ADLAR)
ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ ATmega16.
4. ɂɫɬɨɱɧɢɤɢ ɨɩɨɪɧɨɝɨ ɧɚɩɪɹɠɟɧɢɹ ɞɥɹ ADC ɢ ɢɯ ɡɚɞɚɧɢɟ ɜ ɦɢɤɪɨɤɨɧ-
ɬɪɨɥɥɟɪɟ ATmega16.
5. ȼɵɛɨɪ ɤɨɷɮɮɢɰɢɟɧɬɚ ɩɪɟɞɜɚɪɢɬɟɥɶɧɨɝɨ ɞɟɥɟɧɢɹ ɬɚɤɬɨɜɨɣ ɱɚɫɬɨɬɵ ɞɥɹ
ADC ɜ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɟ ATmega16.
6. Ȼɢɬ ɪɚɡɪɟɲɟɧɢɹ ɩɪɟɪɵɜɚɧɢɹ ɜ ADC ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ AVR ATmega16.
7. Ɏɥɚɝ ɩɪɟɨɛɪɚɡɨɜɚɧɢɹ ADC ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ ATmega16.
8. Ȼɢɬ ɡɚɞɚɧɢɹ ɪɟɠɢɦɚ ɨɞɧɨɤɪɚɬɧɨɝɨ ɢɥɢ ɰɢɤɥɢɱɟɫɤɨɝɨ ɩɪɟɨɛɪɚɡɨɜɚɧɢɹ
ADC ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ ATmega16.
9. Ȼɢɬ ɩɭɫɤɚ ɩɪɟɨɛɪɚɡɨɜɚɧɢɹ ADC ɜ ɨɞɧɨɤɪɚɬɧɨɦ ɪɟɠɢɦɟ ɦɢɤɪɨɤɨɧɬɪɨɥ-
ɥɟɪɚ ATmega16.
10. Ȼɢɬ ɪɚɡɪɟɲɟɧɢɹ ɩɪɟɨɛɪɚɡɨɜɚɧɢɹ ADC ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ ATmega16.
74
Ʌɚɛɨɪɚɬɨɪɧɚɹ ɪɚɛɨɬɚ ʋ 7
ɉɊɈȽɊȺɆɆɂɊɈȼȺɇɂȿ ȺɇȺɅɈȽɈȼɈȽɈ
ɄɈɆɉȺɊȺɌɈɊȺ ɆɂɄɊɈɄɈɇɌɊɈɅɅȿɊɈȼ
ɐɟɥɶ ɪɚɛɨɬɵ: ɂɡɭɱɟɧɢɟ ɢ ɨɫɜɨɟɧɢɟ ɦɟɬɨɞɢɤɢ ɩɪɨɝɪɚɦɦɢɪɨɜɚɧɢɹ ɚɧɚɥɨ-
ɝɨɜɨɝɨ ɤɨɦɩɚɪɚɬɨɪɚ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɨɜ.
Ʉɪɚɬɤɢɟ ɬɟɨɪɟɬɢɱɟɫɤɢɟ ɫɜɟɞɟɧɢɹ
ȺɇȺɅɈȽɈȼɕɃ ɄɈɆɉȺɊȺɌɈɊ
Ⱥɧɚɥɨɝɨɜɵɣ ɤɨɦɩɚɪɚɬɨɪ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ ATmega16 ɢɦɟɟɬ ɞɜɚ ɜɯɨɞɚ –
AIN0 ɢ AIN1. ȼ ɫɨɫɬɚɜ ɚɧɚɥɨɝɨɜɨɝɨ ɤɨɦɩɚɪɚɬɨɪɚ ɤɪɨɦɟ ɛɚɡɨɜɨɝɨ ɤɨɦɩɚɪɚɬɨɪɚ
ɜɯɨɞɢɬ ɪɟɝɢɫɬɪ ɭɩɪɚɜɥɟɧɢɹ-ɫɨɫɬɨɹɧɢɹ ACSR (ʋ $08) ɢ ɷɥɟɦɟɧɬɵ, ɭɩɪɚɜɥɹɸɳɢɟ
ɪɚɛɨɬɨɣ ɫɯɟɦɵ. Ɋɟɡɭɥɶɬɚɬɨɦ ɪɚɛɨɬɵ ɤɨɦɩɚɪɚɬɨɪɚ ɹɜɥɹɟɬɫɹ ɡɚɩɪɨɫ ɩɪɟɪɵɜɚɧɢɹ
ANA COMP, ɤɨɬɨɪɵɣ ɮɨɪɦɢɪɭɟɬɫɹ, ɤɨɝɞɚ ɪɚɡɧɨɫɬɶ ɡɧɚɱɟɧɢɣ ɧɚɩɪɹɠɟɧɢɹ ɧɚ
ɜɯɨɞɚɯ ɤɨɦɩɚɪɚɬɨɪɚ ɦɟɧɹɟɬ ɡɧɚɤ.
ɋɯɟɦɚ ɭɩɪɚɜɥɟɧɢɹ ɋɍ ɩɪɢ ɨɩɪɟɞɟɥɟɧɧɨɦ ɢɡɦɟɧɟɧɢɢ ɫɢɝɧɚɥɚ ȺɋɈ ɭɫɬɚ-
ɧɚɜɥɢɜɚɟɬ ɜ ɟɞɢɧɢɱɧɨɟ ɫɨɫɬɨɹɧɢɟ ɪɚɡɪɹɞ ACI ɪɟɝɢɫɬɪɚ ACSR ɢ ɩɪɢ ɟɞɢɧɢɱɧɨɦ
ɫɨɫɬɨɹɧɢɢ ɪɚɡɪɹɞɚ ACIE ɪɟɝɢɫɬɪɚ ACSR ɜ ɛɥɨɤ ɩɪɟɪɵɜɚɧɢɣ ɩɨɫɬɭɩɚɟɬ ɡɚɩɪɨɫ
ɩɪɟɪɵɜɚɧɢɹ ANA COMP. Ɋɚɡɪɹɞ ACI ɫɛɪɚɫɵɜɚɟɬɫɹ ɜ ɧɭɥɟɜɨɟ ɫɨɫɬɨɹɧɢɟ ɚɩɩɚ-
ɪɚɬɧɨ ɩɪɢ ɩɟɪɟɯɨɞɟ ɤ ɜɵɩɨɥɧɟɧɢɸ ɩɪɟɪɵɜɚɸɳɟɣ ɩɪɨɝɪɚɦɦɵ ɢɥɢ ɩɪɨɝɪɚɦɦɧɨ
ɩɭɬɟɦ ɡɚɩɢɫɢ ɟɞɢɧɢɰɵ ɜ ɪɚɡɪɹɞ ACI.
ȼɵɛɨɪ ɜɢɞɚ ɢɡɦɟɧɟɧɢɹ ɫɢɝɧɚɥɚ ȺɋɈ ɧɚ ɜɯɨɞɟ ɫɯɟɦɵ ɭɩɪɚɜɥɟɧɢɹ ɋɍ, ɩɪɢ
ɤɨɬɨɪɨɦ ɮɨɪɦɢɪɭɟɬɫɹ ɡɚɩɪɨɫ ɩɪɟɪɵɜɚɧɢɹ, ɨɩɪɟɞɟɥɹɟɬɫɹ ɤɨɦɛɢɧɚɰɢɟɣ ɫɨɫɬɨɹ-
ɧɢɣ ɪɚɡɪɹɞɨɜ ACISO ɢ ACIS1 ɪɟɝɢɫɬɪɚ ACSR ɜ ɫɨɨɬɜɟɬɫɬɜɢɢ ɫ ɬɚɛɥ. 31.
Ɍɚɛɥɢɰɚ 31. ȼɵɛɨɪ ɜɢɞɚ ɫɢɝɧɚɥɚ ɤɨɦɩɚɪɚɬɨɪɚ
ACIS1 ACIS0 ɂɡɦɟɧɟɧɢɟ ɫɢɝɧɚɥɚ
ȺɋɈ
0 0 ɥɸɛɨɟ
0 1 —
1 0 1ĺ0
1 1 0ĺ1
ȼ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɟ ATmega16 ɫɢɝɧɚɥ ȺɋɈ ɫ ɜɵɯɨɞɚ ɛɚɡɨɜɨɝɨ ɤɨɦɩɚɪɚɬɨ-
ɪɚ ɩɪɢ ɟɞɢɧɢɱɧɨɦ ɫɨɫɬɨɹɧɢɢ ɪɚɡɪɹɞɚ ACIC ɩɪɢɧɢɦɚɟɬɫɹ ɜ ɬɚɣɦɟɪ-ɫɱɟɬɱɢɤ ɜ ɤɚ-
ɱɟɫɬɜɟ ɫɢɝɧɚɥɚ, ɭɩɪɚɜɥɹɸɳɟɝɨ ɡɚɯɜɚɬɨɦ.
ɉɪɢ ɭɫɬɚɧɨɜɤɟ ɜ ɟɞɢɧɢɱɧɨɟ ɫɨɫɬɨɹɧɢɟ ɪɚɡɪɹɞɚ ACD ɪɟɝɢɫɬɪɚ ACSR ɨɬ-
ɤɥɸɱɚɟɬɫɹ ɩɢɬɚɧɢɟ ɛɚɡɨɜɨɝɨ ɤɨɦɩɚɪɚɬɨɪɚ ɢ ɭɦɟɧɶɲɚɟɬɫɹ ɬɨɤ ɩɨɬɪɟɛɥɟɧɢɹ ɦɢɤ-
ɪɨɤɨɧɬɪɨɥɥɟɪɚ.
ȼ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɟ ATmega16 ɢɦɟɟɬɫɹ ɜɨɡɦɨɠɧɨɫɬɶ ɩɨɞɤɥɸɱɚɬɶ ɤ ɜɯɨɞɭ
«+» ɛɚɡɨɜɨɝɨ ɤɨɦɩɚɪɚɬɨɪɚ ɜɦɟɫɬɨ ɜɯɨɞɚ AIN0 ɜɵɯɨɞ ɜɧɭɬɪɟɧɧɟɝɨ ɢɫɬɨɱɧɢɤɚ
ɷɬɚɥɨɧɧɨɝɨ ɧɚɩɪɹɠɟɧɢɹ VR (1,22 ± 0,05 ȼ). ɉɨɞɤɥɸɱɟɧɢɟ ɢɫɬɨɱɧɢɤɚ VR ɜɵɩɨɥ-
ɧɹɟɬɫɹ ɩɪɢ ɟɞɢɧɢɱɧɨɦ ɫɨɫɬɨɹɧɢɢ ɪɚɡɪɹɞɚ AINBG ɪɟɝɢɫɬɪɚ ACSR, ɤɪɨɦɟ ɬɨɝɨ,

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