Техника микропроцессорных систем в коммутации. Проектирование микропроцессорных систем на базе микроконтроллеров AVR фирмы Atmel. Горохин В.Н. - 7 стр.

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UCSRA ɭɫɬɚɧɚɜɥɢɜɚɟɬɫɹ ɮɥɚɝ ɩɟɪɟɩɨɥɧɟɧɢɹ OR. ɗɬɨ ɨɡɧɚɱɚɟɬ, ɱɬɨ ɧɨɜɵɟ ɞɚɧ-
ɧɵɟ, ɩɟɪɟɫɵɥɚɟɦɵɟ ɜ ɫɞɜɢɝɨɜɵɣ ɪɟɝɢɫɬɪ, ɧɟ ɦɨɝɭɬ ɛɵɬɶ ɩɟɪɟɞɚɧɵ ɜ UDR ɢɩɨ-
ɬɟɪɹɧɵ. Ȼɢɬ OR ɛɭɮɟɪɢɪɨɜɚɧ ɢ ɞɨɫɬɭɩɟɧ ɬɨɝɞɚ, ɤɨɝɞɚ ɜ UDR ɱɢɬɚɟɬɫɹ ɛɚɣɬ ɞɨɫ-
ɬɨɜɟɪɧɵɯ ɞɚɧɧɵɯ. ɉɨɥɶɡɨɜɚɬɟɥɸ, ɞɥɹ ɨɛɧɚɪɭɠɟɧɢɹ ɩɟɪɟɩɨɥɧɟɧɢɹ, ɧɟɨɛɯɨɞɢɦɨ
ɜɫɟɝɞɚ ɩɪɨɜɟɪɹɬɶ ɮɥɚɝ OR ɩɨɫɥɟ ɫɱɢɬɵɜɚɧɢɹ ɫɨɞɟɪɠɢɦɨɝɨ ɪɟɝɢɫɬɪɚ UDR.
ɉɪɢ ɨɱɢɳɟɧɧɨɦ (ɫɛɪɨɲɟɧɧɨɦ ɜ ɥɨɝɢɱɟɫɤɨɟ ɫɨɫɬɨɹɧɢɟ 0) ɛɢɬɟ RXEN ɪɟɝɢ-
ɫɬɪɚ UCR ɩɪɢɟɦ ɡɚɩɪɟɳɟɧ.
Ɋɟɝɢɫɬɪ UCSRA ɢɦɟɟɬ ɛɢɬɵ ɫɥɟɞɭɸɳɟɝɨ ɧɚɡɧɚɱɟɧɢɹ:
- Ȼɢɬ 7 - RXC – ɩɪɢɟɦ ɡɚɜɟɪɲɟɧ.
- Ȼɢɬ 6 - TXC – ɩɟɪɟɞɚɱɚ ɡɚɜɟɪɲɟɧɚ.
- Ȼɢɬ 5 - UDRE – ɪɟɝɢɫɬɪ ɞɚɧɧɵɯ ɩɭɫɬ.
- Ȼɢɬ 4 - FE – ɨɲɢɛɤɚ ɤɚɞɪɚ.
- Ȼɢɬ 3 - OR – ɩɟɪɟɩɨɥɧɟɧɢɟ ɞɚɧɧɵɯ.
- Ȼɢɬ 1 - U2X – ɭɞɜɨɟɧɢɟ ɫɤɨɪɨɫɬɢ ɩɟɪɟɞɚɱɢ.
- Ȼɢɬ 0 - MPCM – ɪɟɠɢɦ ɦɭɥɶɬɢɩɪɨɰɟɫɫɨɪɧɨɝɨ ɨɛɦɟɧɚ.
Ɋɟɝɢɫɬɪ UCSRB ɢɦɟɟɬ ɛɢɬɵ ɫɥɟɞɭɸɳɟɝɨ ɧɚɡɧɚɱɟɧɢɹ:
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Ȼɢɬ 7 - RXCIE – ɪɚɡɪɟɲɟɧɢɟ ɩɪɟɪɵɜɚɧɢɹ ɩɨ ɡɚɜɟɪɲɟɧɢɸ ɩɪɢɟɦɚ.
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Ȼɢɬ 6 - TXCIE – ɪɚɡɪɟɲɟɧɢɟ ɩɪɟɪɵɜɚɧɢɹ ɩɨ ɡɚɜɟɪɲɟɧɢɸ ɩɟɪɟɞɚɱɢ.
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Ȼɢɬ 5 - UDRIE – Ɋɚɡɪɟɲɟɧɢɟ ɩɪɟɪɵɜɚɧɢɹ ɩɨ ɩɭɫɬɨɦɭ ɪɟɝɢɫɬɪɭ ɞɚɧɧɵɯ.
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Ȼɢɬ 4 - RXEN – ɪɚɡɪɟɲɟɧɢɟ ɩɪɢɟɦɧɢɤɚ.
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Ȼɢɬ 3 - TXEN – ɪɚɡɪɟɲɟɧɢɟ ɩɟɪɟɞɚɬɱɢɤɚ.
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Ȼɢɬ 2 -CHR9 – ɪɟɠɢɦ 9-ɪɚɡɪɹɞɧɵɯ ɫɢɦɜɨɥɨɜ.
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Ȼɢɬ 1 -RXB8 – ɩɪɢɟɦ 8-ɪɚɡɪɹɞɧɵɯ ɞɚɧɧɵɯ.
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Ȼɢɬ 0 -TXB8 – ɩɟɪɟɞɚɱɚ 8-ɪɚɡɪɹɞɧɵɯ ɞɚɧɧɵɯ.
ɂɧɬɟɝɪɢɪɨɜɚɧɧɚɹ ɨɬɥɚɞɨɱɧɚɹ ɫɪɟɞɚ VMLab
ɂɧɬɟɝɪɢɪɨɜɚɧɧɚɹ ɨɬɥɚɞɨɱɧɚɹ ɫɪɟɞɚ ɨɛɵɱɧɨ ɜɤɥɸɱɚɟɬ ɜ ɫɟɛɹ ɤɨɦɩɢɥɹɬɨɪ ɫ
ɹɡɵɤɨɜ ɚɫɫɟɦɛɥɟɪɚ ɢ ɋɂ ɢ ɩɨɡɜɨɥɹɟɬ ɩɨɥɶɡɨɜɚɬɟɥɸ ɩɨɥɧɨɫɬɶɸ ɤɨɧɬɪɨɥɢɪɨɜɚɬɶ
ɜɵɩɨɥɧɟɧɢɟ ɩɪɨɝɪɚɦɦ ɫ ɢɫɩɨɥɶɡɨɜɚɧɢɟɦ ɫɢɦɭɥɹɬɨɪɚ, ɤɨɬɨɪɵɣ ɩɨɞɞɟɪɠɢɜɚɟɬ
ɪɚɡɥɢɱɧɵɟ ɬɢɩɵ ɦɢɤɪɨɤɨɧɬɪɨɥɥɟɪɨɜ. ɇɚɩɪɢɦɟɪ, ɨɬɥɚɞɨɱɧɚɹ ɫɪɟɞɚ VMLab ɩɨɞ-
ɞɟɪɠɢɜɚɟɬ ɜɵɩɨɥɧɟɧɢɟ ɩɪɨɝɪɚɦɦ ɜ ɜɢɞɟ ɚɫɫɟɦɛɥɟɪɧɨɝɨ ɬɟɤɫɬɚ ɮɨɪɦɚɬɚ AVR
Assembler ɢ ɜ ɮɨɪɦɚɬɟ ɹɡɵɤɚ Cɂ ɤɨɦɩɢɥɹɬɨɪɚ GCC ɢ WinAVR.
ɉɨɥɶɡɨɜɚɬɟɥɶ ɦɨɠɟɬ ɜɵɩɨɥɧɹɬɶ ɩɪɨɝɪɚɦɦɭ ɩɨɥɧɨɫɬɶɸ ɜ ɩɨɲɚɝɨɜɨɦ ɪɟɠɢ-
ɦɟ, ɬɪɚɫɫɢɪɭɹ ɛɥɨɤɢ ɮɭɧɤɰɢɣ, ɢɥɢ ɜɵɩɨɥɧɹɹ ɩɪɨɝɪɚɦɦɭ ɞɨ ɦɟɫɬɚ, ɝɞɟ ɫɬɨɢɬ
ɤɭɪɫɨɪ. ȼ ɞɨɩɨɥɧɟɧɢɟ ɦɨɠɧɨ ɨɩɪɟɞɟɥɹɬɶ ɧɟɨɝɪɚɧɢɱɟɧɧɨɟ ɱɢɫɥɨ ɬɨɱɟɤ ɨɫɬɚɧɨɜɚ,
ɤɚɠɞɚɹ ɢɡ ɤɨɬɨɪɵɯ ɦɨɠɟɬ ɛɵɬɶ ɜɤɥɸɱɟɧɚ ɢɥɢ ɜɵɤɥɸɱɟɧɚ. ɂɧɬɟɝɪɢɪɨɜɚɧɧɚɹ ɨɬ-
ɥɚɞɨɱɧɚɹ ɫɪɟɞɚ VMLab ɢɫɩɨɥɶɡɭɟɬɫɹ ɫɨ ɜɫɬɪɨɟɧɧɵɦ ɢɦɢɬɚɬɨɪɨɦ AVR.
ɋɨɡɞɚɧɢɟ ɩɪɨɟɤɬɚ ɜ VMLab
Ⱦɥɹ ɪɚɛɨɬɵ ɧɚɞ ɧɨɜɵɦ ɩɪɨɟɤɬɨɦ ɫɨɡɞɚɟɬɫɹ ɩɚɩɤɚ ɩɪɨɟɤɬɚ ɫ ɩɪɨɢɡɜɨɥɶɧɵɦ
ɢɦɟɧɟɦ, ɧɚɩɪɢɦɟɪ ɧɚ ɞɢɫɤɟ ɋ:. ȼ ɩɚɩɤɭ ɧɟɨɛɯɨɞɢɦɨ ɫɤɨɩɢɪɨɜɚɬɶ ɮɚɣɥ ɢɧɢɰɢɚ-
ɥɢɡɚɰɢɢ ɜɵɛɪɚɧɧɨɝɨ ɞɥɹ ɪɟɚɥɢɡɚɰɢɢ ɩɪɨɟɤɬɚ ɤɨɧɬɪɨɥɥɟɪɚ, ɧɚɩɪɢɦɟɪ,
14
«m16def.inc». ɗɬɨɬ ɮɚɣɥ ɜɤɥɸɱɟɧ ɜ ɩɪɢɤɥɚɞɧɨɟ ɩɪɨɝɪɚɦɦɧɨɟ ɨɛɟɫɩɟɱɟɧɢɟ
VMLab.
ɉɪɨɝɪɚɦɦɚ VMLab ɮɭɧɤɰɢɨɧɢɪɭɟɬ ɜ ɫɪɟɞɟ Windows 95/98/2000/XP/NT.
Ɂɧɚɱɨɤ ɡɚɩɭɫɤɚ ɩɪɨɝɪɚɦɦɵ ɢɡɨɛɪɚɠɟɧ ɧɚ ɪɢɫ. 3.
ȼ ɪɟɡɭɥɶɬɚɬɟ ɡɚɩɭɫɤɚ AVR Studio ɧɚ ɷɤɪɚɧɟ ɩɨɹɜɥɹɟɬɫɹ ɨɤɧɨ ɩɪɨɝɪɚɦɦɵ,
ɩɪɟɞɫɬɚɜɥɟɧɧɨɟ ɧɚ ɪɢɫ. 4.
Ⱦɥɹ ɫɨɡɞɚɧɢɹ ɧɨɜɨɝɨ ɩɪɨɟɤɬɚ ɧɟɨɛɯɨɞɢɦɨ ɜ ɦɟɧɸ
Project ɜɵɛɪɚɬɶ ɤɨɦɚɧɞɭ New Proect. ȼ ɞɢɚɥɨɝɨɜɨɦ
ɨɤɧɟ (ɪɢɫ. 5) ɧɟɨɛɯɨɞɢɦɨ ɜɜɟɫɬɢ ɧɚɡɜɚɧɢɟ ɩɪɨɟɤɬɚ
(Project name) ɢ ɟɝɨ ɪɚɫɩɨɥɨɠɟɧɢɟ (Location).
Ⱦɚɥɟɟ ɜɵɩɨɥɧɹɸɬɫɹ ɞɟɣɫɬɜɢɹ, ɭɤɚɡɚɧɧɵɟ ɜ Step1,
Step2, Step3, Step4. Ɋɢɫ. 3. Ɂɧɚɱɨɤ ɩɪɨɝɪɚɦɦɵ
Ʉ ɩɪɨɟɤɬɭ ɞɨɥɠɟɧ ɛɵɬɶ ɞɨɛɚɜɥɟɧ ɮɚɣɥ ɩɪɨɝɪɚɦɦɵ ɧɚ ɹɡɵɤɟ ɚɫɫɟɦɛɥɟɪɚ.
ɗɬɨ ɦɨɠɧɨ ɫɞɟɥɚɬɶ ɪɚɡɧɵɦɢ ɫɩɨɫɨɛɚɦɢ: ɢɥɢ ɜ ɩɪɨɟɤɬ ɞɨɛɚɜɥɹɟɬɫɹ ɭɠɟ ɫɭɳɟɫɬ-
ɜɭɸɳɢɣ ɮɚɣɥ ɫ ɪɚɫɲɢɪɟɧɢɟɦ .asm, ɢɥɢ ɫɨɡɞɚɟɬɫɹ ɧɨɜɵɣ.
ɉɨɫɥɟ ɭɫɬɚɧɨɜɤɢ ɜɫɟɯ ɩɚɪɚɦɟɬɪɨɜ ɩɪɨɟɤɬɚ ɢ ɧɚɠɚɬɢɹ ɧɚ ɤɧɨɩɤɭ OK ɩɨɹɜ-
ɥɹɸɬɫɹ ɞɜɚ ɨɤɧɚ Code. Target File ɫ ɩɪɨɝɪɚɦɦɨɣ ɧɚ ɹɡɵɤɟ Ⱥɫɫɟɦɛɥɟɪɚ ɢ ɨɤɧɨ
ɮɚɣɥɚ ɩɪɨɟɤɬɚ. Ɉɛɚ ɨɤɧɚ (ɪɢɫ. 6) ɞɨɩɭɫɤɚɸɬ ɤɨɪɪɟɤɬɢɪɨɜɤɭ ɷɬɢɯ ɮɚɣɥɨɜ ɜɫɬɪɨ-
ɟɧɧɵɦ ɬɟɤɫɬɨɜɵɦ ɪɟɞɚɤɬɨɪɨɦ. Ʉɨɪɪɟɤɬɢɪɨɜɤɚ ɦɨɠɟɬ ɛɵɬɶ ɜɵɩɨɥɧɟɧɚ ɬɚɤɠɟ
ɥɸɛɵɦ ɬɟɤɫɬɨɜɵɦ ɪɟɞɚɤɬɨɪɨɦ ɜɧɟ ɫɪɟɞɵ VMLab.
Ɋɢɫ. 4. ɋɬɚɪɬɨɜɨɟ ɨɤɧɨ ɩɪɨɝɪɚɦɦɵ VNLab
Vmlab.exe

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