{"id":2354,"date":"2017-12-30T15:07:27","date_gmt":"2017-12-30T07:07:27","guid":{"rendered":"http:\/\/learn-house.idv.tw\/?p=2354"},"modified":"2017-12-30T15:09:09","modified_gmt":"2017-12-30T07:09:09","slug":"%e8%aa%8d%e8%ad%98uart%e3%80%81i2c%e3%80%81spi%e4%b8%89%e4%bb%8b%e9%9d%a2%e7%89%b9%e6%80%a7","status":"publish","type":"post","link":"https:\/\/learn-house.idv.tw\/?p=2354","title":{"rendered":"\u8a8d\u8b58UART\u3001I2C\u3001SPI\u4e09\u4ecb\u9762\u7279\u6027"},"content":{"rendered":"

\u8cc7\u6599\u4f86\u6e90\uff1ahttps:\/\/makerpro.cc\/2016\/07\/learning-interfaces-about-uart-i2c-spi\/<\/p>\n

\u5c0d\u5c08\u696d\u96fb\u5b50\u5de5\u7a0b\u4eba\u54e1\u800c\u8a00\uff0cUART\u3001I2C\u3001SPI\u7b49\u4ecb\u9762\u53ca\u4ecb\u9762\u7684\u5dee\u5225\uff0c\u662f\u53ef\u4ee5\u8b1b\u5230\u975e\u5e38\u7d30\u7bc0\u7684\uff0c\u5305\u542b\u908f\u8f2f\u4fe1\u865f\u7684\u6e96\u4f4d\u3001\u50b3\u8f38\u5354\u5b9a\u4e2d\u7684\u5c01\u5305\u683c\u5f0f\u7b49\u3002<\/p>\n

\u7136\u800c\u5c0d\u4e0d\u662f\u96fb\u5b50\u5de5\u7a0b\u80cc\u666f\u7684\u5275\u5ba2\u3001\u81ea\u9020\u8005\uff08Maker\uff09\u800c\u8a00\uff0c\u9019\u4e9b\u4ecb\u9762\u5c31\u6bd4\u8f03\u964c\u751f\u4e86\uff0c\u7136\u800c\u9019\u4e9b\u4ecb\u9762\u53c8\u4e0d\u5f97\u4e0d\u53bb\u9762\u5c0d\uff0c\u56e0\u70baArduino\u3001Raspberry Pi\u958b\u767c\u677f\u5c31\u6709\u9019\u4e9b\u4ecb\u9762\u3002<\/p>\n

\u4ee5Arduino\u800c\u8a00\uff0c\u6700\u539f\u521d\u7684Arduino\u5c31\u6709UART\uff0c\u800c\u6f14\u5316\u4e0d\u4e45\u5f8c\u4e5f\u52a0\u6dfb\u4e86I2C\uff0c\u73fe\u5728\u7121\u8ad6Arduino\u5bb6\u65cf\u958b\u767c\u677f\u5982\u4f55\u6f14\u5316\uff0c\u591a\u6703\u5177\u5099UART\u8207I2C\u3002<\/p>\n

\u800cRPi\u65b9\u9762\u5247\u662f\u5f9e2012\u5e74\u6700\u539f\u521d\u7684RPi\u958b\u59cb\uff0c\u5c31\u540c\u6642\u5177\u5099\u9019\u4e09\u7a2e\u4ecb\u9762\uff0c\u4e8b\u5be6\u4e0aArduino\u958b\u767c\u677f\u6240\u7528\u7684\u5fae\u63a7\u5236\u5668\u6676\u7247\uff0c\u5176\u672c\u8eab\u4e5f\u662f\u5177\u5099SPI\u4ecb\u9762\u529f\u80fd\u7684\uff0c\u53ea\u662fArduino\u5c07\u6b64\u529f\u80fd\u63a9\u84cb\u3001\u95dc\u9589\u800c\u5df2\u3002<\/p>\n

\n

\"\u57161<\/a><\/p>\n

\u57161 Arduino\u4e0a\u7684UART\u3001SPI\u3001I2C\u4ecb\u9762\u63a5\u8173\u4f4d\u7f6e\uff08\u7da0\u6846\uff09\u3002\uff08\u5716\u7247\u4f86\u6e90<\/a>\uff09<\/p>\n<\/div>\n

\u81f3\u65bc\u5176\u4ed6\u958b\u767c\u677f\uff0c\u5982BeagleBone\u300196Boards\u7b49\uff0c\u4e5f\u90fd\u5fc5\u7136\u5177\u5099\u9019\u4e09\u7a2e\u4ecb\u9762\uff0c\u66f4\u7c21\u55ae\u8aaa\uff0c\u5e7e\u4e4e\u591a\u6578\u958b\u767c\u677f\u90fd\u6703\u5177\u5099\u9019\u4e09\u7a2e\u4ecb\u9762\u3002\u5982\u679c\u523b\u610f\u4e0d\u7406\u6703\u3001\u4e0d\u4f7f\u7528\u9019\u4e09\u7a2e\u4ecb\u9762\uff0c\u800c\u7528\u4e00\u822c\u6578\u4f4d\u8f38\u51fa\u5165\u63a5\u8173\u4f86\u5be6\u73fe\u76f8\u540c\u529f\u80fd\uff0c\u901a\u5e38\u662f\u4e8b\u500d\u529f\u534a\u7684\uff0c\u751a\u81f3\u6839\u672c\u505a\u4e0d\u5230\u3002<\/p>\n

\u65e2\u7136\u4e00\u5b9a\u8981\u8a8d\u8b58\u3001\u4e86\u89e3\u8207\u904b\u7528\uff0c\u662f\u5426\u53ef\u4ee5\u5148\u8df3\u7565\u904e\u592a\u5c08\u696d\u7684\u96fb\u5b50\u96fb\u6a5f\u5c64\u9762\uff0c\u5f9e\u5e7e\u500b\u5927\u7279\u6027\u4f86\u4e86\u89e3\u9019\u4e09\u7a2e\u4ecb\u9762\uff1f\u672c\u6587\u5176\u5be6\u5c31\u662f\u5f9e\u9019\u500b\u89d2\u5ea6\u5207\u5165\uff0c\u76e1\u53ef\u80fd\u8b93\u4e00\u822c\u4eba\u90fd\u4e86\u89e3\u9019\u4e09\u7a2e\u4ecb\u9762\u7684\u5dee\u7570\uff0c\u4ee5\u53ca\u5728\u4f55\u6642\u8a72\u7528\u54ea\u7a2e\u4ecb\u9762\u3002<\/p>\n

1. UART<\/h3>\n

\u56b4\u683c\u800c\u8ad6UART\u4e0d\u662f\u500b\u5177\u9ad4\u7684\u4ecb\u9762\uff0c\u6b64\u4ecb\u9762\u53ea\u63d0\u4f9b\u4e00\u500b\u96db\u5f62\u57fa\u790e\uff0c\u4ee5\u6b64\u57fa\u790e\u518d\u52a0\u642d\u96fb\u8def\u8207\u8edf\u9ad4\uff0c\u624d\u53ef\u4ee5\u5be6\u73fe\u4e0d\u540c\u7684\u4ecb\u9762\uff0c\u5982RS-232\u3001RS-422\u3001RS-485\u7b49\u3002<\/p>\n

\u4e0d\u904e\u5c31Maker\u904b\u7528\u800c\u8a00\u5e7e\u4e4e\u662f\u7528\u4f86\u5be6\u73feRS-232\u4ecb\u9762\uff0c\u800cRS-232\u4ecb\u9762\u53ea\u5141\u8a31\u5169\u500b\u88dd\u7f6e\u76f4\u63a5\u5c0d\u63a5\uff0c\u7121\u6cd5\u63a5\u66f4\u591a\u88dd\u7f6e\uff08\u82e5\u70baRS-422\u3001RS-485\u5247\u53ef\u63a5\u591a\u500b\u88dd\u7f6e\uff09\u3002<\/p>\n

\n

\"\u57162<\/p>\n

\u57162 UART\u50c5\u9069\u5408\u5169\u500b\u88dd\u7f6e\u5c0d\u63a5\uff0c\u5716\u70ba\u5fae\u63a7\u5236\u5668\u6676\u7247\uff08uC\uff09\u8207\u5168\u7403\u5b9a\u4f4d\u7cfb\u7d71\uff08GPS\uff09\u7684\u5c0d\u63a5\u3002\uff08\u5716\u7247\u4f86\u6e90<\/a>\uff09<\/p>\n<\/div>\n

\u7528UART\/RS-232\u4f86\u9023\u63a5\uff0c\u901a\u5e38\u662f\u63a5\u53e6\u4e00\u500bArduino\uff0c\u6216\u8005\u662f\u8b93Arduino\u8207\u96fb\u8166\u9023\u63a5\uff0c\u904e\u53bb\u8001\u820a\u7684\u96fb\u8166\u662f\u5177\u5099RS-232\u4ecb\u9762\uff08\u5728\u96fb\u8166\u9818\u57df\u7a31\u70ba\u4e32\u5217\u57e0\uff0cSerial Port\uff09\u7684\uff0c\u53ef\u4ee5\u76f4\u63a5\u63a5Arduino\uff0c\u4f46\u8fd110\u5e74\u7684\u96fb\u8166\u90fd\u53ea\u5177\u5099USB\uff0c\u5df2\u7d93\u6c92\u6709RS-232\u4e86\uff0c\u56e0\u6b64\u901a\u5e38\u9084\u8981\u900f\u904e\u4e00\u500bUART\u8f49USB\u7684\u8f49\u63a5\u96fb\u8def\uff0c\u624d\u80fd\u8b93Arduino\u8207\u96fb\u8166\u9023\u63a5\u3002<\/p>\n

UART\/RS-232\u597d\u8655\u662f\u7dda\u8def\u7c21\u55ae\uff0c\u50c5\u5169\u689d\u7dda\u8def\uff0c\u4f46\u7f3a\u9ede\u662f\u53ea\u80fd\u4e00\u5c0d\u4e00\u9023\u63a5\uff0c\u4ee5\u53ca\u901f\u5ea6\u4e0d\u662f\u5f88\u5feb\uff0c\u4e00\u822c\u800c\u8a00\u6700\u9ad8\u70ba115.2kbps\uff0c\u96d6\u6709\u66f4\u9ad8\u901f\u7248\u672c\u4f46\u4e0d\u592a\u666e\u53ca\uff0c\u4e0d\u9069\u5408\u7528\u5728\u9ad8\u901f\u3001\u5927\u91cf\u50b3\u8f38\u4e0a\u3002<\/p>\n

2. I2C<\/h3>\n

I2C\u8207UART\/RS-232\u4e00\u6a23\u662f\u5169\u689d\u7dda\u8def\uff0c\u4e5f\u662f\u6709\u7dda\u8def\u7c21\u55ae\u7684\u597d\u8655\uff0c\u6700\u65e9\u662fPHILIPS\uff08\u4eca\u65e5\u7684NXP\uff09\u63d0\u51fa\u4f86\uff0c\u7528\u5728\u6676\u7247\u9593\u7684\u806f\u7e6b\u50b3\u8f38\u4e4b\u7528\u3002I2C\u53ef\u4ee5\u540c\u6642\u9023\u63a5\u591a\u500b\u88dd\u7f6e\uff0c\u4e0d\u4f3c\u524d\u8ff0\u7684RS-232\u50c5\u80fd\u4e00\u5c0d\u4e00\uff0c\u7406\u8ad6\u4e0aI2C\u53ef\u4ee5\u9023\u63a5128\u500b\u88dd\u7f6e\uff0c\u751a\u81f3\u6709\u66f4\u591a\u6578\u76ee\u7684\u5c01\u5305\u683c\u5f0f\u5b9a\u7fa9\uff0c\u4f46\u5be6\u52d9\u4e0a\u7121\u6cd5\u63a5\u90a3\u9ebc\u591a\uff0c\u4f46\u63a510\u500b\u4e0a\u4e0b\u591a\u7121\u5927\u7919\u3002<\/p>\n

\n

\"\u57163<\/p>\n

\u57163 I2C\u4ecb\u9762\u50c5\u75282\u689d\u7dda\u5373\u53ef\u9023\u63a5\u591a\u500b\u88dd\u7f6e\u3002\uff08\u5716\u7247\u4f86\u6e90\uff1a\u7dad\u57fa\u767e\u79d1\uff09<\/p>\n<\/div>\n

\u7121\u8ad6\u63a5\u5e7e\u500b\u88dd\u7f6e\uff0cI2C\u90fd\u53ea\u7528\u5169\u689d\u7dda\uff0c\u9019\u662fI2C\u4ecb\u9762\u7684\u512a\u9ede\uff0c\u53e6\u4e00\u512a\u9ede\u662f\u4e00\u822c\u800c\u8a00\u50b3\u8f38\u901f\u5ea6\u6bd4UART\/RS-232\u5feb\uff0c\u6700\u521d\u7248\u672c\u70ba100kbps\uff0c\u4f46\u4e4b\u5f8c\u5c31\u5347\u7d1a\u5230400kbps\uff0c\u5f8c\u7e8c\u751a\u81f3\u52305Mbps\uff0c\u4f46\u8207UART\/RS-232\u985e\u4f3c\u7684\uff0c\u66f4\u5feb\u901f\u7684\u7248\u672c\u4e0d\u592a\u666e\u53ca\uff0c\u7136\u540c\u6a23\u4ee5\u666e\u53ca\u6027\u7248\u672c\u800c\u8a00\uff0cI2C\u4ecd\u662f\u5feb\u4e00\u4e9b\u3002<\/p>\n

I2C\u6709\u5176\u512a\u9ede\uff0c\u4f46\u4e5f\u6709\u4e00\u4e9b\u7f3a\u9ede\uff0c\u9996\u5148\u5b83\u672c\u4f86\u662f\u8a2d\u8a08\u7d66\u6676\u7247\u9593\u6e9d\u901a\u7528\u7684\uff0c\u539f\u5247\u4e0a\u53ea\u80fd\u8d70\u5728\u96fb\u8def\u677f\u4e0a\uff0c\u4ee5\u5370\u5237\u96fb\u8def\u677f\uff08PCB\uff09\u4e0a\u7684\u9285\u7b94\u7dda\u8def\u4f86\u8d70\uff0c\u4e0d\u662f\u8d70\u96fb\u7dda\u7e9c\u7dda\u7684\uff0c\u4f46\u76ee\u524d\u8a31\u591a\u61c9\u7528\u537b\u662f\u628aI2C\u7e9c\u7dda\u5316\u3002<\/p>\n

\u4e5f\u56e0\u70ba\u6700\u539f\u521d\u662f\u8d70\u9285\u7b94\u7dda\u8def\uff0c\u6240\u4ee5\u4e00\u822c\u4f86\u8aaaI2C\u9577\u5ea6\u4e0d\u8d85\u904e30\u516c\u5206\uff08\u5373\u4e00\u7247\u5370\u5237\u96fb\u8def\u677f\u7684\u9762\u7a4d\u5167\u8d70\u7e5e\uff09\u3002\u800cUART\/RS-232\u901a\u5e38\u6709\u518d\u5bec\u88d5\u4e00\u9ede\u7684\u9023\u63a5\u9577\u5ea6\uff08\u82e5\u4f9d\u64daRS-232\u6700\u539f\u59cb\u6a19\u6e96\uff0c\u4f7f\u7528\u6b63\u8ca012V\u96fb\u58d3\u50b3\u8f38\uff0c\u50b3\u8f38\u8ddd\u96e2\u662f\u53ef\u4ee5\u4e0akm\u7684\uff09\u3002<\/p>\n

\u53e6\u5916I2C\u7684\u5169\u689d\u7dda\u8def\u53ea\u6709\u4e00\u689d\u662f\u6578\u64da\u50b3\u8f38\u7dda\uff0c\u53e6\u4e00\u689d\u662f\u6642\u8108\u7dda\u8def\uff0c\u4f46UART\/RS-232\u662f\u5169\u689d\u90fd\u662f\u50b3\u8f38\u7dda\uff0cI2C\u5728\u63a5\u6536\u6578\u64da\u6642\u7121\u6cd5\u767c\u9001\uff0c\u53cd\u4e4b\u767c\u9001\u6642\u7121\u6cd5\u63a5\u6536\uff0c\u4f46UART\/RS-232\u5247\u7121\u6b64\u554f\u984c\u3002<\/p>\n

SPI<\/h3>\n

SPI\uff08\u7531Motorola\u767c\u660e\uff0c\u5373\u662f\u4e4b\u5f8c\u7684Freescale\uff0c\u4e4b\u5f8cNXP\u8cfc\u4f75Freescale\uff09\u8207I2C\u76f8\u540c\u662f\u53ef\u4ee5\u63a5\u591a\u500b\u88dd\u7f6e\u7684\uff0c\u800c\u4e14\u50b3\u8f38\u901f\u5ea6\u6bd4I2C\u66f4\u5feb\uff08\u4e8b\u5be6\u4e0aSD\u8a18\u61b6\u5361\u7684\u6839\u57fa\u5c31\u662f\u9019\u500b\u4ecb\u9762\uff09\uff0c\u800c\u4e14\u8207UART\/RS-232\u4e00\u6a23\uff0c\u767c\u9001\u8207\u63a5\u6536\u53ef\u540c\u6642\u9032\u884c\u3002<\/p>\n

\u4e0d\u904eSPI\u4e5f\u6709\u7f3a\u9ede\uff0c\u4e00\u662f\u96a8\u8457\u9023\u63a5\u88dd\u7f6e\u6578\u7684\u589e\u52a0\uff0c\u7dda\u8def\u4e5f\u662f\u8981\u589e\u52a0\u7684\uff0c\u6bcf\u589e\u52a0\u4e00\u500b\u9023\u63a5\u88dd\u7f6e\uff0c\u81f3\u5c11\u8981\u589e\u52a0\u4e00\u689d\uff0c\u4e0d\u50cfI2C\u53ef\u4ee5\u4e00\u76f4\u7dad\u6301\u53ea\u8981\u5169\u689d\u3002\u800cSPI\u5728\u4e00\u5c0d\u4e00\u9023\u63a5\u6642\u9700\u8981\u56db\u689d\uff0c\u4e00\u5c0d\u4e8c\u6642\u8981\u4e94\u689d\uff0c\u4e00\u5c0d\u4e09\u6642\u8981\u516d\u689d\uff0c\u5373N+3\u7684\u6982\u5ff5\u3002\u53e6\u5916SPI\u6bd4I2C\u66f4\u5c11\u7e9c\u7dda\u5316\u904b\u7528\uff0c\u591a\u534a\u662f\u66f4\u77ed\u8ddd\u96e2\u7684\u9023\u63a5\u3002\u5728\u5be6\u52d9\u4e0a\uff0cI2C\u8f03\u5e38\u7528\u4f86\u9023\u63a5\u611f\u6e2c\u5668\uff0c\u800cSPI\u8f03\u5e38\u7528\u4f86\u9023\u63a5EEPROM\u8a18\u61b6\u9ad4\u3001Flash\u8a18\u61b6\u9ad4\uff08\u8a18\u61b6\u5361\uff09\uff0c\u6216\u4e00\u4e9b\u6db2\u6676\u986f\u793a\u5668\u3002<\/p>\n

\n

\"\u57164<\/p>\n

\u57164 SPI\u6bcf\u591a\u9023\u63a5\u4e00\u500b\u88dd\u7f6e\uff0c\u5fc5\u9808\u589e\u52a0\u4e00\u689d\u65b0\u7684SS\u7dda\u8def\u3002\uff08\u5716\u7247\u4f86\u6e90\uff1a\u7dad\u57fa\u767e\u79d1\uff09<\/p>\n<\/div>\n

\u900f\u904e\u4ee5\u4e0a\u7684\u8aaa\u660e\uff0c\u76f8\u4fe1\u5404\u4f4d\u6bd4\u8f03\u4e86\u89e3\u4e09\u7a2e\u4ecb\u9762\u7684\u7279\u6027\uff0c\u6b64\u5c07\u6709\u52a9\u5f8c\u7e8c\u5275\u4f5c\u767c\u60f3\u6642\uff0c\u7528\u66f4\u5207\u5408\u9700\u6c42\u7684\u4ecb\u9762\u4f86\u5be6\u73fe\u5275\u4f5c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8cc7\u6599\u4f86\u6e90\uff1ahttps:\/\/makerpro.cc\/2016\/07\/learning-interfaces-ab…<\/span><\/p>\n

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