Техника микропроцессорных систем в коммутации. Проектирование микропроцессорных систем на базе микроконтроллеров AVR фирмы Atmel. Горохин В.Н. - 19 стр.

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ɉɨɪɹɞɨɤ ɜɵɩɨɥɧɟɧɢɹ ɥɚɛɨɪɚɬɨɪɧɨɣ ɪɚɛɨɬɵ
ɇɟɨɛɯɨɞɢɦɨ ɜɵɩɨɥɧɢɬɶ ɜɫɟ ɧɟɨɛɯɨɞɢɦɵɟ ɨɩɟɪɚɰɢɢ ɫ ɩɪɨɟɤɬɨɦ Lab_2.prj ɢ
ɩɪɨɝɪɚɦɦɨɣ Lab2.asm ɜɫɪɟɞɟ VMLab ɤɚɤ ɢ ɜ ɥɚɛɨɪɚɬɨɪɧɨɣ ɪɚɛɨɬɟ ʋ1.
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 AVR Ⱥɫɫɟɦɛɥɟɪɟ (ɪɚɫɩɟɱɚɬɤɚ ɮɚɣɥɚ *asm);
ɪɚɫɩɟɱɚɬɤɚ ɮɚɣɥɚ ɩɪɨɟɤɬɚ (*.prj);
ɪɟɡɭɥɶɬɚɬɵ ɦɨɞɟɥɢɪɨɜɚɧɢɹ (ɨɤɧɨ VMLab ɫ ɡɚɩɭɳɟɧɧɨɣ ɩɪɨɝɪɚɦɦɨɣ ɢ
ɪɟɡɭɥɶɬɚɬɚɦɢ ɜɵɱɢɫɥɟɧɢɣ).
Ʉɨɧɬɪɨɥɶɧɵɟ ɜɨɩɪɨɫɵ
1. ɋɬɪɭɤɬɭɪɚ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ ATmega16.
2. ɋɨɫɬɚɜ ɮɚɣɥɚ m16def.inc.
3. Ɋɟɝɢɫɬɪɵ ɭɩɪɚɜɥɟɧɢɹ UART ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ ATmega16.
4. ɉɨɪɬɵ ɜɜɨɞɚ/ɜɵɜɨɞɚ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ ATmega16.
5. ɉɨɪɬɵ ɜɜɨɞɚ/ɜɵɜɨɞɚ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ ATmega16.
6. ɉɨɞɤɥɸɱɟɧɢɟ LCD ɦɨɞɭɥɹ ɤ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɭ AVR ATmega16.
7. ɍɩɪɚɜɥɟɧɢɟ ɩɪɨɰɟɫɫɨɦ ɜɵɜɨɞɚ ɢɧɮɨɪɦɚɰɢɢ ɢɡ AVR ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɚ
ATmega16 ɜ LCD ɦɨɞɭɥɶ (ɞɢɫɩɥɟɣ).
8. ɇɚɡɧɚɱɟɧɢɟ ɢ ɫɨɫɬɚɜ ɮɚɣɥɚ m16def.inc.
38
Ʌɚɛɨɪɚɬɨɪɧɚɹ ɪɚɛɨɬɚ ʋ 3
ɉɊɈȽɊȺɆɆȺ ɍɉɊȺȼɅȿɇɂə ɌȺɃɆȿɊ-ɋɑȿɌɑɂɄɈɆ
ȼ ɊȿɀɂɆȿ ɒɂɊɈɌɇɈ-ɂɆɉɍɅɖɋɇɈɃ ɆɈȾɍɅəɐɂɂ
ɐɟɥɶ ɪɚɛɨɬɵ: ɂɡɭɱɟɧɢɟ ɩɪɨɟɤɬɢɪɨɜɚɧɢɹ ɬɚɣɦɟɪɚ/ɫɱɟɬɱɢɤɚ ɜ ɤɨɧɬɪɨɥɥɟɪɟ
AVR ɧɚ ɩɪɢɦɟɪɟ ɩɪɨɝɪɚɦɦɵ ɝɟɧɟɪɚɰɢɢ ɫɢɧɭɫɨɢɞɚɥɶɧɨɝɨ ɫɢɝɧɚɥɚ ɜ ɪɟɠɢɦɟ ɲɢ-
ɪɨɬɧɨ-ɢɦɩɭɥɶɫɧɨɣ ɦɨɞɭɥɹɰɢɢ.
Ʉɪɚɬɤɢɟ ɬɟɨɪɟɬɢɱɟɫɤɢɟ ɫɜɟɞɟɧɢɹ
Ɍɚɣɦɟɪ/ɫɱɟɬɱɢɤ 0
Ɍɚɣɦɟɪ-ɫɱɟɬɱɢɤ 0 – ɦɨɞɭɥɶ ɦɧɨɝɨɮɭɧɤɰɢɨɧɚɥɶɧɨɝɨ ɨɞɧɨɤɚɧɚɥɶɧɨɝɨ
8-ɪɚɡɪɹɞɧɨɝɨ ɬɚɣɦɟɪɚ-ɫɱɟɬɱɢɤɚ. Ɏɭɧɤɰɢɨɧɚɥɶɧɚɹ ɫɯɟɦɚ ɬɚɣɦɟɪɚ-ɫɱɟɬɱɢɤɚ ɩɪɟɞ-
ɫɬɚɜɥɟɧɚ ɧɚ ɪɢɫ. 19.
Ɋɢɫ. 19. Ɏɭɧɤɰɢɨɧɚɥɶɧɚɹ ɫɯɟɦɚ 8-ɪɚɡɪ. ɬɚɣɦɟɪɚ-ɫɱɟɬɱɢɤɚ 0
Ɉɩɢɫɚɧɢɟ ɪɟɝɢɫɬɪɨɜ 8-ɪɚɡɪɹɞɧɨɝɨ ɬɚɣɦɟɪɚ-ɫɱɟɬɱɢɤɚ 0
Ɋɟɝɢɫɬɪ ɭɩɪɚɜɥɟɧɢɹ ɬɚɣɦɟɪɨɦ-ɫɱɟɬɱɢɤɨɦ 0 – TCCR0
ȼ ɬɚɛɥɢɰɟ 10 ɩɪɟɞɫɬɚɜɥɟɧɚ ɫɬɪɭɤɬɭɪɚ ɪɟɝɢɫɬɪɚ, ɪɟɠɢɦɵ ɭɩɪɚɜɥɟɧɢɹ ɢ ɧɚ-
ɱɚɥɶɧɵɟ ɡɧɚɱɟɧɢɹ ɪɚɡɪɹɞɨɜ ɪɟɝɢɫɬɪɚ TCCR0.
Ɍɚɛɥ. 10. Ɋɟɝɢɫɬɪ TCCR0
Ɋɚɡɪɹɞ 7 6 5 4 3 2 1 0
FOC0 WGM00 COM01 COM00 WGM01 CS02 CS01 CS00
ɑɬ./ɡɚɩ. ɑɬ. ɑɬ./Ɂɩ. ɑɬ./Ɂɩ. ɑɬ./Ɂɩ. ɑɬ./Ɂɩ. ɑɬ./Ɂɩ. ɑɬ./Ɂɩ. ɑɬ./Ɂɩ.
ɂɫɯ.ɡɧ. 0 0 0 0 0 0 0 0

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