{"id":11207,"date":"2026-04-09T11:02:08","date_gmt":"2026-04-09T03:02:08","guid":{"rendered":"https:\/\/www.archimetric.com\/vn\/state-machine-diagram-qa-embedded-logic\/"},"modified":"2026-04-09T11:02:08","modified_gmt":"2026-04-09T03:02:08","slug":"state-machine-diagram-qa-embedded-logic","status":"publish","type":"post","link":"https:\/\/www.archimetric.com\/vn\/state-machine-diagram-qa-embedded-logic\/","title":{"rendered":"C\u00e2u h\u1ecfi v\u00e0 tr\u1ea3 l\u1eddi v\u1ec1 s\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i: 15 c\u00e2u h\u1ecfi h\u00e0ng \u0111\u1ea7u m\u00e0 ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u \u0111\u1eb7t ra v\u1ec1 logic nh\u00fang"},"content":{"rendered":"

Thi\u1ebft k\u1ebf logic cho c\u00e1c h\u1ec7 th\u1ed1ng nh\u00fang \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c. M\u1ed9t tr\u1ea1ng th\u00e1i kh\u00f4ng x\u00e1c \u0111\u1ecbnh duy nh\u1ea5t c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 c\u1ed1 h\u1ec7 th\u1ed1ng, h\u00e0nh vi kh\u00f4ng mong mu\u1ed1n ho\u1eb7c r\u1ee7i ro an to\u00e0n. S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i (SMD) l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 n\u1ec1n t\u1ea3ng trong Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML) gi\u00fap c\u00e1c k\u1ef9 s\u01b0 tr\u1ef1c quan h\u00f3a h\u00e0nh vi n\u00e0y. N\u00f3 m\u00f4 t\u1ea3 c\u00e1ch h\u1ec7 th\u1ed1ng chuy\u1ec3n t\u1eeb m\u1ed9t \u0111i\u1ec1u ki\u1ec7n n\u00e0y sang \u0111i\u1ec1u ki\u1ec7n kh\u00e1c d\u1ef1a tr\u00ean c\u00e1c s\u1ef1 ki\u1ec7n c\u1ee5 th\u1ec3.<\/p>\n

\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u01b0\u1edbc v\u00e0o l\u0129nh v\u1ef1c logic nh\u00fang, vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 v\u1ebd c\u00e1c h\u00ecnh h\u1ed9p v\u00e0 m\u0169i t\u00ean. \u0110\u00f3 l\u00e0 vi\u1ec7c c\u1ea5u tr\u00fac qu\u00e1 tr\u00ecnh suy ngh\u0129 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 15 c\u00e2u h\u1ecfi quan tr\u1ecdng gi\u00fap l\u00e0m r\u00f5 c\u00e1ch c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p>\n

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\"Kawaii<\/figure>\n<\/div>\n

1\ufe0f\u20e3 S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i l\u00e0 g\u00ec?<\/h2>\n

S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i l\u00e0 m\u1ed9t lo\u1ea1i s\u01a1 \u0111\u1ed3 h\u00e0nh vi UML. N\u00f3 m\u00f4 h\u00ecnh h\u00f3a h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng theo th\u1eddi gian. Thay v\u00ec hi\u1ec3n th\u1ecb \u0111i\u1ec1u m\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m theo tr\u00ecnh t\u1ef1, n\u00f3 cho th\u1ea5yh\u1ec7 th\u1ed1ng \u0111ang l\u00e0m g\u00ec<\/strong>v\u00e0o b\u1ea5t k\u1ef3 th\u1eddi \u0111i\u1ec3m n\u00e0o. M\u1ed7i tr\u1ea1ng th\u00e1i ri\u00eang bi\u1ec7t m\u00e0 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 \u1edf v\u00e0o \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0tr\u1ea1ng th\u00e1i<\/em>. S\u01a1 \u0111\u1ed3 minh h\u1ecda c\u00e1ch h\u1ec7 th\u1ed1ng chuy\u1ec3n \u0111\u1ed5i gi\u1eefa c\u00e1c tr\u1ea1ng th\u00e1i n\u00e0y khi x\u1ea3y ra c\u00e1c s\u1ef1 ki\u1ec7n c\u1ee5 th\u1ec3.<\/p>\n

    \n
  • Ch\u00fa tr\u1ecdng:<\/strong> N\u00f3 t\u1eadp trung v\u00e0o v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c h\u1ec7 th\u1ed1ng.<\/li>\n
  • B\u1ed1i c\u1ea3nh:<\/strong> N\u00f3 r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea3n \u1ee9ng, nh\u1eefng h\u1ec7 th\u1ed1ng ph\u1ea3n h\u1ed3i l\u1ea1i c\u00e1c k\u00edch th\u00edch b\u00ean ngo\u00e0i.<\/li>\n
  • K\u1ebft qu\u1ea3:<\/strong> N\u00f3 th\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf \u0111\u1ec3 sinh m\u00e3 trong m\u00f4i tr\u01b0\u1eddng nh\u00fang.<\/li>\n<\/ul>\n

    2\ufe0f\u20e3 SMD kh\u00e1c v\u1edbi s\u01a1 \u0111\u1ed3 d\u00f2ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n

    Ng\u01b0\u1eddi m\u1edbi th\u01b0\u1eddng nh\u1ea7m l\u1eabn gi\u1eefa S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i v\u00e0 S\u01a1 \u0111\u1ed3 d\u00f2ng v\u00ec c\u1ea3 hai \u0111\u1ec1u s\u1eed d\u1ee5ng h\u00ecnh d\u1ea1ng v\u00e0 m\u0169i t\u00ean. Tuy nhi\u00ean, m\u1ee5c \u0111\u00edch c\u1ee7a ch\u00fang ho\u00e0n to\u00e0n kh\u00e1c nhau. S\u01a1 \u0111\u1ed3 d\u00f2ng m\u00f4 t\u1ea3 m\u1ed9t quy tr\u00ecnh ho\u1eb7c thu\u1eadt to\u00e1n. M\u00e1y tr\u1ea1ng th\u00e1i m\u00f4 t\u1ea3 tr\u1ea1ng th\u00e1i c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n\n\n\n\n\n\n
    T\u00ednh n\u0103ng<\/th>\nS\u01a1 \u0111\u1ed3 d\u00f2ng<\/th>\nS\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i<\/th>\n<\/tr>\n
    Ch\u00fa tr\u1ecdng<\/strong><\/td>\nLu\u1ed3ng quy tr\u00ecnh v\u00e0 c\u00e1c b\u01b0\u1edbc logic<\/td>\nTr\u1ea1ng th\u00e1i v\u00e0 \u0111i\u1ec1u ki\u1ec7n c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng<\/td>\n<\/tr>\n
    C\u1ea5u tr\u00fac<\/strong><\/td>\n\u0110\u01b0\u1eddng \u0111i tuy\u1ebfn t\u00ednh ho\u1eb7c nh\u00e1nh<\/td>\nC\u00e1c n\u00fat (tr\u1ea1ng th\u00e1i) v\u00e0 c\u00e1c c\u1ea1nh (chuy\u1ec3n ti\u1ebfp)<\/td>\n<\/tr>\n
    B\u1ed9 nh\u1edb<\/strong><\/td>\nTh\u01b0\u1eddng kh\u00f4ng l\u01b0u tr\u1ea1ng th\u00e1i theo t\u1eebng b\u01b0\u1edbc<\/td>\nL\u01b0u l\u1ecbch s\u1eed tr\u1ea1ng th\u00e1i<\/td>\n<\/tr>\n
    \u0110\u1ed3ng th\u1eddi<\/strong><\/td>\nKh\u00f3 m\u00f4 h\u00ecnh h\u00f3a<\/td>\nH\u1ed7 tr\u1ee3 c\u00e1c v\u00f9ng song song<\/td>\n<\/tr>\n<\/table>\n

    3\ufe0f\u20e3 C\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a m\u1ed9t SMD l\u00e0 g\u00ec?<\/h2>\n

    \u0110\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t s\u01a1 \u0111\u1ed3 h\u1ee3p l\u1ec7, b\u1ea1n ph\u1ea3i hi\u1ec3u t\u1eeb v\u1ef1ng. M\u1ed7i s\u01a1 \u0111\u1ed3 \u0111\u1ec1u d\u1ef1a v\u00e0o c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee5 th\u1ec3 \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a h\u00e0nh vi.<\/p>\n

      \n
    • Tr\u1ea1ng th\u00e1i:<\/strong> M\u1ed9t \u0111i\u1ec1u ki\u1ec7n trong \u0111\u00f3 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ecfa m\u00e3n m\u1ed9t \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh, th\u1ef1c hi\u1ec7n m\u1ed9t ho\u1ea1t \u0111\u1ed9ng n\u00e0o \u0111\u00f3, ho\u1eb7c ch\u1edd \u0111\u1ee3i m\u1ed9t s\u1ef1 ki\u1ec7n n\u00e0o \u0111\u00f3.<\/li>\n
    • Chuy\u1ec3n ti\u1ebfp:<\/strong> M\u1ed1i quan h\u1ec7 gi\u1eefa hai tr\u1ea1ng th\u00e1i cho th\u1ea5y \u0111\u1ed1i t\u01b0\u1ee3ng \u1edf tr\u1ea1ng th\u00e1i \u0111\u1ea7u ti\u00ean s\u1ebd th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng c\u1ee5 th\u1ec3 v\u00e0 k\u1ebft th\u00fac \u1edf tr\u1ea1ng th\u00e1i th\u1ee9 hai khi m\u1ed9t s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh x\u1ea3y ra.<\/li>\n
    • S\u1ef1 ki\u1ec7n:<\/strong> \u0110i\u1ec1u g\u00ec \u0111\u00f3 x\u1ea3y ra t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m c\u1ee5 th\u1ec3, k\u00edch ho\u1ea1t m\u1ed9t chuy\u1ec3n ti\u1ebfp.<\/li>\n
    • \u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7:<\/strong> Bi\u1ec3u th\u1ee9c Boolean ph\u1ea3i \u0111\u00fang \u0111\u1ec3 chuy\u1ec3n ti\u1ebfp x\u1ea3y ra.<\/li>\n
    • Tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u:<\/strong> \u0110i\u1ec3m b\u1eaft \u0111\u1ea7u c\u1ee7a s\u01a1 \u0111\u1ed3.<\/li>\n
    • Tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac:<\/strong> \u0110i\u1ec3m m\u00e0 qu\u00e1 tr\u00ecnh k\u1ebft th\u00fac.<\/li>\n<\/ul>\n

      4\ufe0f\u20e3 S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa m\u1ed9t Tr\u1ea1ng th\u00e1i v\u00e0 m\u1ed9t Ho\u1ea1t \u0111\u1ed9ng l\u00e0 g\u00ec?<\/h2>\n

      \u0110\u00e2y l\u00e0 m\u1ed9t \u0111i\u1ec3m th\u01b0\u1eddng g\u00e2y nh\u1ea7m l\u1eabn. M\u1ed9t tr\u1ea1ng th\u00e1i \u0111\u1ea1i di\u1ec7n cho m\u1ed9t kho\u1ea3ng th\u1eddi gian m\u00e0 h\u1ec7 th\u1ed1ng \u0111ang th\u1ef1c hi\u1ec7n \u0111i\u1ec1u g\u00ec \u0111\u00f3 ho\u1eb7c \u0111ang ch\u1edd \u0111\u1ee3i. M\u1ed9t ho\u1ea1t \u0111\u1ed9ng \u0111\u1ea1i di\u1ec7n cho m\u1ed9t h\u00e0nh \u0111\u1ed9ng ho\u1eb7c nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3 c\u1ea7n th\u1eddi gian \u0111\u1ec3 ho\u00e0n th\u00e0nh.<\/p>\n

      Trong nhi\u1ec1u tri\u1ec3n khai, m\u1ed9t ho\u1ea1t \u0111\u1ed9ng l\u00e0 m\u1ed9t ph\u1ea7n n\u1ed9i t\u1ea1i c\u1ee7a m\u1ed9t tr\u1ea1ng th\u00e1i. V\u00ed d\u1ee5, trong tr\u1ea1ng th\u00e1i \u201c\u0110ang x\u1eed l\u00fd\u201d, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 \u0111ang th\u1ef1c hi\u1ec7n m\u1ed9t \u201cHo\u1ea1t \u0111\u1ed9ng\u201d nh\u01b0 \u0111\u1ecdc c\u1ea3m bi\u1ebfn. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh l\u00e0 khi \u1edf trong m\u1ed9t tr\u1ea1ng th\u00e1i, h\u1ec7 th\u1ed1ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 \u1ed5n \u0111\u1ecbnh. Khi th\u1ef1c hi\u1ec7n m\u1ed9t ho\u1ea1t \u0111\u1ed9ng, h\u1ec7 th\u1ed1ng \u0111ang \u1edf gi\u1eefa m\u1ed9t nhi\u1ec7m v\u1ee5. Trong logic nh\u00fang, c\u00e1c tr\u1ea1ng th\u00e1i th\u01b0\u1eddng \u00e1nh x\u1ea1 \u0111\u1ebfn c\u00e1c ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng ri\u00eang bi\u1ec7t (v\u00ed d\u1ee5: Ng\u01b0ng, \u0110ang s\u1ea1c, L\u1ed7i), trong khi c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u00e1nh x\u1ea1 \u0111\u1ebfn m\u00e3 \u0111ang th\u1ef1c thi trong ch\u1ebf \u0111\u1ed9 \u0111\u00f3.<\/p>\n

      5\ufe0f\u20e3 Chuy\u1ec3n ti\u1ebfp ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n

      M\u1ed9t chuy\u1ec3n ti\u1ebfp l\u00e0 m\u0169i t\u00ean n\u1ed1i hai tr\u1ea1ng th\u00e1i. \u0110\u00f3 l\u00e0 c\u01a1 ch\u1ebf thay \u0111\u1ed5i. Khi h\u1ec7 th\u1ed1ng \u1edf Tr\u1ea1ng th\u00e1i A v\u00e0 S\u1ef1 ki\u1ec7n X x\u1ea3y ra, chuy\u1ec3n ti\u1ebfp \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t.<\/p>\n

      C\u00e1c chuy\u1ec3n ti\u1ebfp tu\u00e2n theo m\u1ed9t c\u00fa ph\u00e1p c\u1ee5 th\u1ec3, th\u01b0\u1eddng \u0111\u01b0\u1ee3c vi\u1ebft nh\u01b0:<\/p>\n

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      • S\u1ef1 ki\u1ec7n [\u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7] \/ H\u00e0nh \u0111\u1ed9ng<\/strong><\/li>\n<\/ul>\n

        V\u00ed d\u1ee5, n\u00fat_b\u1ea5m [pin_th\u1ea5p] \/ chuy\u1ec3n_sang_ch\u1ebf_\u0111\u1ed9_ng\u1ee7<\/code>. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 n\u1ebfu n\u00fat \u0111\u01b0\u1ee3c b\u1ea5m V\u00c0 pin th\u1ea5p, h\u1ec7 th\u1ed1ng s\u1ebd chuy\u1ec3n sang ch\u1ebf \u0111\u1ed9 ng\u1ee7. N\u1ebfu n\u00fat \u0111\u01b0\u1ee3c b\u1ea5m nh\u01b0ng pin cao, th\u00ec kh\u00f4ng c\u00f3 g\u00ec x\u1ea3y ra (\u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 th\u1ea5t b\u1ea1i). C\u00e1c chuy\u1ec3n ti\u1ebfp l\u00e0 t\u1ee9c th\u1eddi trong m\u00f4 h\u00ecnh h\u00f3a, m\u1eb7c d\u00f9 ch\u00fang \u0111\u1ea1i di\u1ec7n cho nh\u1eefng thay \u0111\u1ed5i logic trong m\u00e3 ngu\u1ed3n.<\/p>\n

        6\ufe0f\u20e3 S\u1ef1 ki\u1ec7n v\u00e0 K\u00edch ho\u1ea1t l\u00e0 g\u00ec?<\/h2>\n

        M\u1ed9t s\u1ef1 ki\u1ec7n l\u00e0 ch\u1ea5t x\u00fac t\u00e1c cho m\u1ed9t chuy\u1ec3n ti\u1ebfp. Trong c\u00e1c h\u1ec7 th\u1ed1ng nh\u00fang, s\u1ef1 ki\u1ec7n th\u01b0\u1eddng l\u00e0:<\/p>\n

          \n
        • T\u00edn hi\u1ec7u:<\/strong>C\u00e1c tin nh\u1eafn \u0111\u01b0\u1ee3c g\u1eedi t\u1eeb m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0y sang \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c.<\/li>\n
        • Th\u1eddi gian:<\/strong> M\u1ed9t b\u1ed9 \u0111\u1ebfm th\u1eddi gian h\u1ebft h\u1ea1n (v\u00ed d\u1ee5: sau 5 gi\u00e2y).<\/li>\n
        • Ho\u00e0n th\u00e0nh:<\/strong> M\u1ed9t ho\u1ea1t \u0111\u1ed9ng k\u1ebft th\u00fac.<\/li>\n
        • Ngo\u1ea1i l\u1ec7:<\/strong> M\u1ed9t \u0111i\u1ec1u ki\u1ec7n l\u1ed7i x\u1ea3y ra.<\/li>\n<\/ul>\n

          C\u00e1c s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t l\u00e0 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 c\u1ee7a c\u00e1c s\u1ef1 ki\u1ec7n n\u00e0y g\u00e2y ra s\u1ef1 thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i. Kh\u00f4ng c\u00f3 s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t, h\u1ec7 th\u1ed1ng s\u1ebd v\u1eabn \u1edf tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i, ngay c\u1ea3 khi s\u1ef1 ki\u1ec7n x\u1ea3y ra nh\u01b0ng kh\u00f4ng c\u00f3 chuy\u1ec3n ti\u1ebfp n\u00e0o \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a cho n\u00f3.<\/p>\n

          7\ufe0f\u20e3 \u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 l\u00e0 g\u00ec?<\/h2>\n

          M\u1ed9t \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c logic \u0111\u01b0\u1ee3c vi\u1ebft trong d\u1ea5u ngo\u1eb7c vu\u00f4ng[ ]<\/code> tr\u00ean m\u1ed9t chuy\u1ec3n ti\u1ebfp. N\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t ki\u1ec3m tra quy\u1ec1n truy c\u1eadp. Ngay c\u1ea3 khi s\u1ef1 ki\u1ec7n x\u1ea3y ra, chuy\u1ec3n ti\u1ebfp ch\u1ec9 x\u1ea3y ra n\u1ebfu \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 \u0111\u00e1nh gi\u00e1 l\u00e0 \u0111\u00fang.<\/p>\n

          \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi logic nh\u00fang, n\u01a1i nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng \u0111\u1ed3ng th\u1eddi. V\u00ed d\u1ee5, m\u1ed9t \u0111\u1ed9ng c\u01a1 ch\u1ec9 c\u00f3 th\u1ec3 kh\u1edfi \u0111\u1ed9ng n\u1ebfu:<\/p>\n

            \n
          • N\u00fat b\u1eaft \u0111\u1ea7u \u0111\u01b0\u1ee3c nh\u1ea5n (S\u1ef1 ki\u1ec7n).<\/li>\n
          • N\u00fat d\u1eebng kh\u1ea9n c\u1ea5p kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng (\u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7).<\/li>\n
          • Nhi\u1ec7t \u0111\u1ed9 n\u1eb1m trong gi\u1edbi h\u1ea1n cho ph\u00e9p (\u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7).<\/li>\n<\/ul>\n

            8\ufe0f\u20e3 C\u00e1c h\u00e0nh \u0111\u1ed9ng trong m\u00e1y tr\u1ea1ng th\u00e1i l\u00e0 g\u00ec?<\/h2>\n

            C\u00e1c h\u00e0nh \u0111\u1ed9ng l\u00e0 c\u00e1c thao t\u00e1c \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n khi x\u1ea3y ra chuy\u1ec3n ti\u1ebfp ho\u1eb7c khi tr\u1ea1ng th\u00e1i \u0111ang ho\u1ea1t \u0111\u1ed9ng. Ch\u00fang \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo th\u1eddi \u0111i\u1ec3m x\u1ea3y ra:<\/p>\n

              \n
            • H\u00e0nh \u0111\u1ed9ng v\u00e0o:<\/strong> \u0110\u01b0\u1ee3c th\u1ef1c hi\u1ec7n khi h\u1ec7 th\u1ed1ng chuy\u1ec3n v\u00e0o m\u1ed9t tr\u1ea1ng th\u00e1i.<\/li>\n
            • H\u00e0nh \u0111\u1ed9ng ra:<\/strong> \u0110\u01b0\u1ee3c th\u1ef1c hi\u1ec7n khi h\u1ec7 th\u1ed1ng r\u1eddi kh\u1ecfi m\u1ed9t tr\u1ea1ng th\u00e1i.<\/li>\n
            • H\u00e0nh \u0111\u1ed9ng th\u1ef1c hi\u1ec7n:<\/strong> \u0110\u01b0\u1ee3c th\u1ef1c hi\u1ec7n khi h\u1ec7 th\u1ed1ng v\u1eabn duy tr\u00ec \u1edf tr\u1ea1ng th\u00e1i \u0111\u00f3 (ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c).<\/li>\n<\/ul>\n

              Trong sinh m\u00e3, c\u00e1c h\u00e0nh \u0111\u1ed9ng v\u00e0o th\u01b0\u1eddng kh\u1edfi t\u1ea1o bi\u1ebfn, c\u00e1c h\u00e0nh \u0111\u1ed9ng ra d\u1ecdn d\u1eb9p t\u00e0i nguy\u00ean, v\u00e0 c\u00e1c h\u00e0nh \u0111\u1ed9ng th\u1ef1c hi\u1ec7n \u0111\u1ea1i di\u1ec7n cho logic v\u00f2ng l\u1eb7p ch\u00ednh cho tr\u1ea1ng th\u00e1i c\u1ee5 th\u1ec3 \u0111\u00f3.<\/p>\n

              9\ufe0f\u20e3 C\u00e1c tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u v\u00e0 k\u1ebft th\u00fac \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n

              Ch\u00fang l\u00e0 c\u00e1c bi\u00ean c\u1ee7a s\u01a1 \u0111\u1ed3.<\/p>\n

                \n
              • Tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u:<\/strong> \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t h\u00ecnh tr\u00f2n \u0111en \u0111\u1eadm. M\u1ed7i s\u01a1 \u0111\u1ed3 ch\u1ec9 c\u00f3 m\u1ed9t. N\u00f3 ch\u1ec9 ra n\u01a1i h\u1ec7 th\u1ed1ng b\u1eaft \u0111\u1ea7u th\u1ef1c thi.<\/li>\n
              • Tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac:<\/strong> \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t h\u00ecnh tr\u00f2n \u0111en \u0111\u1eadm b\u00ean trong m\u1ed9t h\u00ecnh tr\u00f2n l\u1edbn h\u01a1n. C\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac, \u0111\u1ea1i di\u1ec7n cho c\u00e1c c\u00e1ch kh\u00e1c nhau \u0111\u1ec3 qu\u00e1 tr\u00ecnh k\u1ebft th\u00fac (v\u00ed d\u1ee5: T\u1eaft m\u00e1y b\u00ecnh th\u01b0\u1eddng so v\u1edbi D\u1eebng kh\u1ea9n c\u1ea5p).<\/li>\n<\/ul>\n

                M\u1ecdi h\u00e0nh tr\u00ecnh trong m\u1ed9t m\u00e1y tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t n\u00ean cu\u1ed1i c\u00f9ng \u0111\u1ea1t \u0111\u1ebfn tr\u1ea1ng th\u00e1i cu\u1ed1i c\u00f9ng ho\u1eb7c quay l\u1ea1i tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u.<\/p>\n

                \ud83d\udd1f Tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh (tr\u1ea1ng th\u00e1i l\u1ed3ng gh\u00e9p) l\u00e0 g\u00ec?<\/h2>\n

                Khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n, s\u01a1 \u0111\u1ed3 ph\u1eb3ng tr\u1edf n\u00ean kh\u00f3 \u0111\u1ecdc. C\u00e1c tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh cho ph\u00e9p b\u1ea1n nh\u00fang m\u1ed9t m\u00e1y tr\u1ea1ng th\u00e1i b\u00ean trong m\u1ed9t tr\u1ea1ng th\u00e1i kh\u00e1c. \u0110i\u1ec1u n\u00e0y h\u1eefu \u00edch \u0111\u1ec3 nh\u00f3m c\u00e1c tr\u1ea1ng th\u00e1i li\u00ean quan.<\/p>\n

                V\u00ed d\u1ee5, m\u1ed9t m\u00e1y tr\u1ea1ng th\u00e1i “Xe c\u1ed9” c\u00f3 th\u1ec3 c\u00f3 tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh “\u0110ang l\u00e1i xe”. B\u00ean trong “\u0110ang l\u00e1i xe”, b\u1ea1n c\u00f3 th\u1ec3 c\u00f3 c\u00e1c tr\u1ea1ng th\u00e1i “\u0110i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh”, “T\u0103ng t\u1ed1c”, v\u00e0 “Phanh”. S\u1ef1 ph\u00e2n c\u1ea5p n\u00e0y cho ph\u00e9p b\u1ea1n qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p b\u1eb1ng c\u00e1ch \u1ea9n chi ti\u1ebft cho \u0111\u1ebfn khi c\u1ea7n thi\u1ebft. Khi v\u00e0o tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh, b\u1ea1n s\u1ebd m\u1eb7c \u0111\u1ecbnh v\u00e0o tr\u1ea1ng th\u00e1i kh\u1edfi t\u1ea1o n\u1ed9i b\u1ed9 c\u1ee7a n\u00f3.<\/p>\n

                1\ufe0f\u20e31\ufe0f\u20e3 Tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed l\u00e0 g\u00ec?<\/h2>\n

                C\u00e1c tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed cho ph\u00e9p m\u1ed9t tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh ghi nh\u1edb v\u1ecb tr\u00ed tr\u01b0\u1edbc khi tho\u00e1t ra. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ti\u1ebfp t\u1ee5c c\u00e1c thao t\u00e1c.<\/p>\n

                  \n
                • L\u1ecbch s\u1eed s\u00e2u (H*):<\/strong>Kh\u00f4i ph\u1ee5c h\u1ec7 th\u1ed1ng v\u1ec1 tr\u1ea1ng th\u00e1i con ho\u1ea1t \u0111\u1ed9ng cu\u1ed1i c\u00f9ng b\u00ean trong tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh.<\/li>\n
                • L\u1ecbch s\u1eed n\u00f4ng (H):<\/strong>Kh\u00f4i ph\u1ee5c h\u1ec7 th\u1ed1ng v\u1ec1 tr\u1ea1ng th\u00e1i con c\u1ea5p cao nh\u1ea5t ho\u1ea1t \u0111\u1ed9ng cu\u1ed1i c\u00f9ng.<\/li>\n<\/ul>\n

                  Kh\u00f4ng c\u00f3 tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed, vi\u1ec7c tho\u00e1t ra v\u00e0 quay l\u1ea1i tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh s\u1ebd lu\u00f4n \u0111\u1eb7t l\u1ea1i h\u1ec7 th\u1ed1ng v\u1ec1 \u0111\u1ea7u tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh \u0111\u00f3, l\u00e0m m\u1ea5t ng\u1eef c\u1ea3nh.<\/p>\n

                  1\ufe0f\u20e32\ufe0f\u20e3 Hi\u1ec7u \u1ee9ng v\u00e0o v\u00e0 ra ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n

                  Hi\u1ec7u \u1ee9ng v\u00e0o v\u00e0 ra t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1c h\u00e0nh \u0111\u1ed9ng v\u00e0o v\u00e0 ra nh\u01b0ng nh\u1ea5n m\u1ea1nh \u0111\u1ebfn c\u00e1c t\u00e1c \u0111\u1ed9ng ph\u1ee5 l\u00ean h\u1ec7 th\u1ed1ng. Khi m\u1ed9t m\u00e1y tr\u1ea1ng th\u00e1i v\u00e0o m\u1ed9t tr\u1ea1ng th\u00e1i, n\u00f3 c\u00f3 th\u1ec3 c\u1ea7n c\u1ea5u h\u00ecnh m\u1ed9t thanh ghi ph\u1ea7n c\u1ee9ng. Khi r\u1eddi kh\u1ecfi, n\u00f3 c\u00f3 th\u1ec3 c\u1ea7n t\u1eaft ngu\u1ed3n m\u1ed9t thi\u1ebft b\u1ecb ngo\u1ea1i vi. Nh\u1eefng hi\u1ec7u \u1ee9ng n\u00e0y \u0111\u1ea3m b\u1ea3o tr\u1ea1ng th\u00e1i ph\u1ea7n c\u1ee9ng kh\u1edbp v\u1edbi tr\u1ea1ng th\u00e1i logic trong s\u01a1 \u0111\u1ed3.<\/p>\n

                  1\ufe0f\u20e33\ufe0f\u20e3 M\u00e1y tr\u1ea1ng th\u00e1i kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o gi\u1eefa h\u1ec7 th\u1ed1ng nh\u00fang v\u00e0 ph\u1ea7n m\u1ec1m?<\/h2>\n

                  M\u1eb7c d\u00f9 c\u00fa ph\u00e1p UML l\u00e0 gi\u1ed1ng nhau, nh\u01b0ng c\u00e1c r\u00e0ng bu\u1ed9c tri\u1ec3n khai kh\u00e1c nhau.<\/p>\n\n\n\n\n\n\n
                  Kh\u00eda c\u1ea1nh<\/th>\nH\u1ec7 th\u1ed1ng nh\u00fang<\/th>\nPh\u1ea7n m\u1ec1m th\u00f4ng th\u01b0\u1eddng<\/th>\n<\/tr>\n
                  S\u1eed d\u1ee5ng t\u00e0i nguy\u00ean<\/strong><\/td>\nGi\u1edbi h\u1ea1n nghi\u00eam ng\u1eb7t v\u1ec1 b\u1ed9 nh\u1edb v\u00e0 CPU<\/td>\nT\u00e0i nguy\u00ean linh ho\u1ea1t h\u01a1n<\/td>\n<\/tr>\n
                  Th\u1eddi gian<\/strong><\/td>\nC\u00e1c r\u00e0ng bu\u1ed9c th\u1eddi gian th\u1ef1c l\u00e0 r\u1ea5t quan tr\u1ecdng<\/td>\n\u0110\u1ed9 tr\u1ec5 th\u01b0\u1eddng \u00edt quan tr\u1ecdng h\u01a1n<\/td>\n<\/tr>\n
                  T\u01b0\u01a1ng t\u00e1c v\u1edbi ph\u1ea7n c\u1ee9ng<\/strong><\/td>\nTruy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o thanh ghi<\/td>\nG\u1ecdi API ho\u1eb7c d\u1ecbch v\u1ee5<\/td>\n<\/tr>\n
                  \u0110\u1ed9 tin c\u1eady<\/strong><\/td>\nPh\u1ea3i x\u1eed l\u00fd m\u1ea5t \u0111i\u1ec7n v\u00e0 l\u1ed7i<\/td>\nKh\u00f4i ph\u1ee5c sau s\u1eadp l\u00e0 ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n<\/table>\n

                  Trong logic nh\u00fang, m\u00e1y tr\u1ea1ng th\u00e1i th\u01b0\u1eddng ch\u1ea1y trong m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1edfi ng\u1eaft. S\u01a1 \u0111\u1ed3 ph\u1ea3i ph\u1ea3n \u00e1nh c\u00e1ch c\u00e1c ng\u1eaft \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c chuy\u1ec3n ti\u1ebfp tr\u1ea1ng th\u00e1i.<\/p>\n

                  1\ufe0f\u20e34\ufe0f\u20e3 L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a c\u00e1c tr\u1ea1ng th\u00e1i \u0111\u1ed3ng th\u1eddi (c\u00e1c v\u00f9ng vu\u00f4ng g\u00f3c)?<\/h2>\n

                  C\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p th\u01b0\u1eddng c\u1ea7n theo d\u00f5i nhi\u1ec1u h\u00e0nh vi c\u00f9ng l\u00fac. C\u00e1c v\u00f9ng vu\u00f4ng g\u00f3c cho ph\u00e9p m\u1ed9t tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u tr\u1ea1ng th\u00e1i con song song. M\u1ed9t h\u1ec7 th\u1ed1ng \u1edf tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh th\u1ef1c t\u1ebf \u0111ang \u1edf trong t\u1ea5t c\u1ea3 c\u00e1c v\u00f9ng vu\u00f4ng g\u00f3c c\u1ee7a n\u00f3 c\u00f9ng m\u1ed9t l\u00fac.<\/p>\n

                  V\u00ed d\u1ee5, m\u1ed9t \u0111\u1ed3ng h\u1ed3 th\u00f4ng minh c\u00f3 th\u1ec3 theo d\u00f5i:<\/p>\n

                    \n
                  • Hi\u1ec3n th\u1ecb th\u1eddi gian (V\u00f9ng 1)<\/li>\n
                  • Theo d\u00f5i nh\u1ecbp tim (V\u00f9ng 2)<\/li>\n
                  • K\u1ebft n\u1ed1i Bluetooth (V\u00f9ng 3)<\/li>\n<\/ul>\n

                    C\u00e1c v\u00f9ng n\u00e0y ph\u00e1t tri\u1ec3n \u0111\u1ed9c l\u1eadp v\u1edbi nhau. M\u1ed9t chuy\u1ec3n ti\u1ebfp \u1edf V\u00f9ng 1 kh\u00f4ng bu\u1ed9c ph\u1ea3i c\u00f3 chuy\u1ec3n ti\u1ebfp \u1edf V\u00f9ng 2. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t t\u00e1ch bi\u1ec7t c\u00e1c v\u00f9ng b\u00ean trong m\u1ed9t h\u1ed9p duy nh\u1ea5t.<\/p>\n

                    1\ufe0f\u20e35\ufe0f\u20e3 Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn m\u00e0 ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u th\u01b0\u1eddng m\u1eafc ph\u1ea3i l\u00e0 g\u00ec?<\/h2>\n

                    Ngay c\u1ea3 c\u00e1c k\u1ef9 s\u01b0 c\u00f3 kinh nghi\u1ec7m c\u0169ng m\u1eafc l\u1ed7i. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ea7n tr\u00e1nh.<\/p>\n

                      \n
                    • Thi\u1ebfu c\u00e1c chuy\u1ec3n ti\u1ebfp:<\/strong> Kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u g\u00ec x\u1ea3y ra v\u1edbi m\u1ecdi s\u1ef1 ki\u1ec7n c\u00f3 th\u1ec3 x\u1ea3y ra. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn c\u00e1c tr\u1ea1ng th\u00e1i \u201cb\u1ecb k\u1eb9t\u201d.<\/li>\n
                    • C\u00e1c \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m tra kh\u00f4ng r\u00f5 r\u00e0ng:<\/strong> S\u1eed d\u1ee5ng logic ph\u1ee9c t\u1ea1p trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m tra m\u00e0 n\u00ean \u0111\u01b0\u1ee3c x\u1eed l\u00fd trong c\u00e1c h\u00e0nh \u0111\u1ed9ng.<\/li>\n
                    • B\u1ecf qua c\u00e1c tr\u1ea1ng th\u00e1i l\u1ed7i:<\/strong> Ch\u1ec9 t\u1eadp trung v\u00e0o \u0111\u01b0\u1eddng \u0111i su\u00f4n s\u1ebb. M\u1ecdi h\u1ec7 th\u1ed1ng \u0111\u1ec1u c\u1ea7n m\u1ed9t tr\u1ea1ng th\u00e1i l\u1ed7i ho\u1eb7c tr\u1ea1ng th\u00e1i kh\u1edfi \u0111\u1ed9ng l\u1ea1i.<\/li>\n
                    • Qu\u00e1 nhi\u1ec1u tr\u1ea1ng th\u00e1i:<\/strong> M\u1ed9t s\u01a1 \u0111\u1ed3 v\u1edbi h\u00e0ng tr\u0103m tr\u1ea1ng th\u00e1i r\u1ea5t kh\u00f3 duy tr\u00ec. H\u00e3y t\u00e1i c\u1ea5u tr\u00fac th\u00e0nh c\u00e1c tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh.<\/li>\n
                    • B\u1ecf qua kh\u1edfi t\u1ea1o:<\/strong> Qu\u00ean x\u00e1c \u0111\u1ecbnh r\u00f5 tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u, d\u1eabn \u0111\u1ebfn h\u00e0nh vi kh\u1edfi \u0111\u1ed9ng kh\u00f4ng th\u1ec3 d\u1ef1 \u0111o\u00e1n.<\/li>\n<\/ul>\n

                      \ud83d\udee0 C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho vi\u1ec7c tri\u1ec3n khai logic nh\u00fang<\/h2>\n

                      Khi chuy\u1ec3n t\u1eeb s\u01a1 \u0111\u1ed3 sang m\u00e3 ngu\u1ed3n, h\u00e3y duy tr\u00ec c\u1ea5u tr\u00fac. \u0110\u1eebng \u0111\u1ec3 vi\u1ec7c tri\u1ec3n khai l\u1ec7ch kh\u1ecfi m\u00f4 h\u00ecnh.<\/p>\n

                        \n
                      • T\u00ednh module:<\/strong> Gi\u1eef logic tr\u1ea1ng th\u00e1i t\u00e1ch bi\u1ec7t. S\u1eed d\u1ee5ng c\u00e1c c\u00e2u l\u1ec7nh switch-case ho\u1eb7c c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng tr\u1ea1ng th\u00e1i \u0111\u1ec3 qu\u1ea3n l\u00fd c\u00e1c chuy\u1ec3n ti\u1ebfp.<\/li>\n
                      • Ghi nh\u1eadt k\u00fd:<\/strong> Ghi l\u1ea1i c\u00e1c chuy\u1ec3n ti\u1ebfp tr\u1ea1ng th\u00e1i trong qu\u00e1 tr\u00ecnh g\u1ee1 l\u1ed7i. \u0110i\u1ec1u n\u00e0y cung c\u1ea5p m\u1ed9t b\u1ea3n ghi v\u1ec1 l\u1ecbch s\u1eed c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n
                      • Ki\u1ec3m th\u1eed:<\/strong> S\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 nh\u01b0 m\u1ed9t k\u1ebf ho\u1ea1ch ki\u1ec3m th\u1eed. M\u1ed7i chuy\u1ec3n ti\u1ebfp ph\u1ea3i c\u00f3 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p ki\u1ec3m th\u1eed t\u01b0\u01a1ng \u1ee9ng.<\/li>\n
                      • T\u00e0i li\u1ec7u:<\/strong> Duy tr\u00ec c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 khi m\u00e3 ngu\u1ed3n thay \u0111\u1ed5i. M\u1ed9t s\u01a1 \u0111\u1ed3 l\u1ed7i th\u1eddi c\u00f2n t\u1ec7 h\u01a1n c\u1ea3 kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3.<\/li>\n<\/ul>\n

                        T\u00f3m t\u1eaft c\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh<\/h2>\n

                        \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec3u r\u00f5, h\u00e3y xem l\u1ea1i nh\u1eefng \u0111i\u1ec3m ch\u00ednh n\u00e0y tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n\n\n\n\n
                        Kh\u00e1i ni\u1ec7m<\/th>\n\u0110i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/th>\n<\/tr>\n
                        Tr\u1ea1ng th\u00e1i<\/strong><\/td>\n\u0110\u4ee3\u8868 m\u1ed9t tr\u1ea1ng th\u00e1i c\u1ee7a h\u1ec7 th\u1ed1ng.<\/td>\n<\/tr>\n
                        Chuy\u1ec3n ti\u1ebfp<\/strong><\/td>\nK\u1ebft n\u1ed1i c\u00e1c tr\u1ea1ng th\u00e1i d\u1ef1a tr\u00ean c\u00e1c s\u1ef1 ki\u1ec7n.<\/td>\n<\/tr>\n
                        \u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7<\/strong><\/td>\n\u0110i\u1ec1u ki\u1ec7n ph\u1ea3i \u0111\u00fang \u0111\u1ec3 chuy\u1ec3n ti\u1ebfp.<\/td>\n<\/tr>\n
                        H\u00e0nh \u0111\u1ed9ng<\/strong><\/td>\nM\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c thi trong qu\u00e1 tr\u00ecnh thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i.<\/td>\n<\/tr>\n
                        Th\u1ee9 b\u1eadc<\/strong><\/td>\nC\u00e1c tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh gi\u00fap qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p.<\/td>\n<\/tr>\n<\/table>\n

                        B\u1eb1ng c\u00e1ch gi\u1ea3i quy\u1ebft 15 c\u00e2u h\u1ecfi n\u00e0y, b\u1ea1n s\u1ebd x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc cho vi\u1ec7c thi\u1ebft k\u1ebf logic nh\u00fang. S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t b\u1ea3n v\u1ebd; \u0111\u00f3 l\u00e0 m\u1ed9t h\u1ee3p \u0111\u1ed3ng gi\u1eefa ng\u01b0\u1eddi thi\u1ebft k\u1ebf v\u00e0 h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng. H\u00e3y \u0111\u1ed1i x\u1eed v\u1edbi n\u00f3 b\u1eb1ng s\u1ef1 nghi\u00eam ng\u1eb7t nh\u01b0 \u0111\u1ed1i v\u1edbi ch\u00ednh m\u00e3 ngu\u1ed3n.<\/p>\n","protected":false},"excerpt":{"rendered":"

                        Thi\u1ebft k\u1ebf logic cho c\u00e1c h\u1ec7 th\u1ed1ng nh\u00fang \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c. M\u1ed9t tr\u1ea1ng th\u00e1i kh\u00f4ng x\u00e1c \u0111\u1ecbnh duy<\/p>\n","protected":false},"author":3479,"featured_media":11208,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"H\u1ecfi \u0111\u00e1p S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i: 15 c\u00e2u h\u1ecfi cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u","_yoast_wpseo_metadesc":"Kh\u00e1m ph\u00e1 15 c\u00e2u h\u1ecfi quan tr\u1ecdng v\u1ec1 S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i cho logic nh\u00fang. H\u1ecdc c\u00e1c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 UML, chuy\u1ec3n ti\u1ebfp, \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 v\u00e0 c\u00e1c tr\u1ea1ng th\u00e1i l\u1ed3ng nhau m\u00e0 kh\u00f4ng c\u1ea7n d\u00f9ng thu\u1eadt ng\u1eef ph\u1ee9c t\u1ea1p.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[127],"tags":[162,101],"class_list":["post-11207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-modeling-language","tag-academic","tag-uml"],"yoast_head":"\nH\u1ecfi \u0111\u00e1p S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i: 15 c\u00e2u h\u1ecfi cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u<\/title>\n<meta name=\"description\" content=\"Kh\u00e1m ph\u00e1 15 c\u00e2u h\u1ecfi quan tr\u1ecdng v\u1ec1 S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i cho logic nh\u00fang. H\u1ecdc c\u00e1c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 UML, chuy\u1ec3n ti\u1ebfp, \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 v\u00e0 c\u00e1c tr\u1ea1ng th\u00e1i l\u1ed3ng nhau m\u00e0 kh\u00f4ng c\u1ea7n d\u00f9ng thu\u1eadt ng\u1eef ph\u1ee9c t\u1ea1p.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.archimetric.com\/vn\/state-machine-diagram-qa-embedded-logic\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u1ecfi \u0111\u00e1p S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i: 15 c\u00e2u h\u1ecfi cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u\" \/>\n<meta property=\"og:description\" content=\"Kh\u00e1m ph\u00e1 15 c\u00e2u h\u1ecfi quan tr\u1ecdng v\u1ec1 S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i cho logic nh\u00fang. 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