{"id":97972,"date":"2024-09-19T15:39:40","date_gmt":"2024-09-19T07:39:40","guid":{"rendered":"\/\/www.viralrail.com\/?p=97972"},"modified":"2024-09-19T15:39:44","modified_gmt":"2024-09-19T07:39:44","slug":"sxpsyff","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/97972.html","title":{"rendered":"SX1261\u82af\u7247\u4f7f\u7528\u65b9\u6cd5"},"content":{"rendered":"\n<p>\u3000\u3000<strong>SX1261\u82af\u7247<\/strong>\u662f\u4e00\u6b3e\u7531<strong>Semtech\u516c\u53f8<\/strong>\u751f\u4ea7\u7684\u4f4e\u529f\u8017\u957f\u8ddd\u79bb<strong>LoRa<\/strong>\u00ae\u5c04\u9891\u6536\u53d1\u5668\uff0c\u9002\u7528\u4e8e\u591a\u79cd\u65e0\u7ebf\u5e94\u7528\u3002\u4ee5\u4e0b\u662f\u5173\u4e8e\u5982\u4f55\u4f7f\u7528SX1261\u82af\u7247\u7684\u8be6\u7ec6\u8bf4\u660e\uff1a<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 SX1261\u82af\u7247\u4f7f\u7528\u8bf4\u660e<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001. \u57fa\u672c\u7279\u6027<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u9891\u7387\u8303\u56f4<\/strong>\uff1aSX1261\u5de5\u4f5c\u5728150 MHz\u5230960 MHz\u7684ISM\u9891\u6bb5\u5185\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4f20\u8f93\u529f\u7387<\/strong>\uff1a\u6700\u5927\u53ef\u8fbe\u5230+15 dBm\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u63a5\u6536\u7075\u654f\u5ea6<\/strong>\uff1a\u9ad8\u8fbe-148 dBm\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7535\u6d41\u6d88\u8017<\/strong>\uff1a\u6709\u6e90\u63a5\u6536\u65f6\u4ec5\u97004.6 mA\uff0c\u975e\u5e38\u9002\u5408\u7535\u6c60\u4f9b\u7535\u7684\u5e94\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002. \u63a7\u5236\u63a5\u53e3<\/h3>\n\n\n\n<p>\u3000\u3000SX1261\u901a\u8fc7SPI\u548c\u4e00\u4e9b\u901a\u7528DIO\u53e3\u8fdb\u884c\u63a7\u5236\u3002\u5177\u4f53\u6765\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>SPI\u63a5\u53e3<\/strong>\uff1a\u7528\u4e8e\u6570\u636e\u4f20\u8f93\u548c\u914d\u7f6e\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>DIO\u63a5\u53e3<\/strong>\uff1a\u5305\u62ec\u4e2d\u65ad\u8bf7\u6c42(IRQ)\u5f15\u811a\u548c\u5fd9\u788c\u72b6\u6001(BUSY)\u5f15\u811a\u3002IRQ\u81f3\u5c11\u9700\u8981\u4e00\u4e2aDIO\u5f15\u811a\u6765\u8f93\u51fa\uff0c\u800cBUSY\u5f15\u811a\u7528\u6765\u8868\u793a\u82af\u7247\u662f\u5426\u51c6\u5907\u597d\u63a5\u6536\u547d\u4ee4\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003. \u529f\u80fd\u6a21\u5757<\/h3>\n\n\n\n<p>\u3000\u3000SX1261\u5305\u542b\u56db\u4e2a\u4e3b\u8981\u529f\u80fd\u90e8\u5206\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u6a21\u62df\u524d\u7aef\u90e8\u5206<\/strong>\uff1a\u8d1f\u8d23\u53d1\u5c04\u548c\u63a5\u6536\u94fe\u8def\u4ee5\u53ca\u6570\u636e\u8f6c\u6362\u63a5\u53e3\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u5b57\u524d\u7aef\u90e8\u5206<\/strong>\uff1a\u5904\u7406\u4fe1\u53f7\u8c03\u5236\u548c\u89e3\u8c03\u7b49\u4efb\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004. \u4f7f\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u3000\u3000\u521d\u59cb\u5316\u6b65\u9aa4<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u8fde\u63a5\u786c\u4ef6<\/strong>\uff1a\u5c06SX1261\u4e0e\u5fae\u63a7\u5236\u5668\u6216\u5176\u4ed6\u63a7\u5236\u5355\u5143\u8fde\u63a5\uff0c\u786e\u4fdd\u6240\u6709\u5fc5\u8981\u7684\u5f15\u811a\u90fd\u6b63\u786e\u8fde\u63a5\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u914d\u7f6eSPI\u63a5\u53e3<\/strong>\uff1a\u6839\u636e\u6570\u636e\u624b\u518c\u8bbe\u7f6eSPI\u901a\u4fe1\u53c2\u6570\uff0c\u5982\u6ce2\u7279\u7387\u3001\u65f6\u949f\u6781\u6027\u7b49\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u521d\u59cb\u5316\u4e2d\u65ad\u548c\u5fd9\u788c\u72b6\u6001\u5f15\u811a<\/strong>\uff1a\u914d\u7f6eIRQ\u548cBUSY\u5f15\u811a\u4ee5\u786e\u4fdd\u6b63\u786e\u54cd\u5e94\u82af\u7247\u72b6\u6001\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u64cd\u4f5c\u793a\u4f8b<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u53d1\u9001\u6570\u636e<\/strong>\uff1a\u901a\u8fc7SPI\u63a5\u53e3\u53d1\u9001\u6570\u636e\u5e27\u5230SX1261.\u7136\u540e\u7b49\u5f85\u5176\u54cd\u5e94\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u63a5\u6536\u6570\u636e<\/strong>\uff1a\u914d\u7f6eSX1261\u8fdb\u5165\u63a5\u6536\u6a21\u5f0f\uff0c\u7136\u540e\u4ece\u5176\u8f93\u51fa\u7aef\u53e3\u8bfb\u53d6\u63a5\u6536\u5230\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30005. \u7279\u6b8a\u529f\u80fd<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>Rx Boosted Gain\u6a21\u5f0f<\/strong>\uff1a\u53ef\u4ee5\u5728\u6570\u636e\u624b\u518c\u4e2d\u627e\u5230\u76f8\u5173\u7ae0\u8282\u8fdb\u884c\u542f\u7528\u6216\u7981\u7528\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6570\u636e\u6574\u5f62\u8bbe\u7f6e<\/strong>\uff1a\u53ef\u4ee5\u8c03\u6574\u9ad8\u65af\u6ee4\u6ce2\u5668\u7684\u65f6\u95f4\u5e26\u5bbd\u79ef\uff0c\u4ee5\u4f18\u5316\u4fe1\u53f7\u8d28\u91cf\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30006. \u5e94\u7528\u573a\u666f<\/h3>\n\n\n\n<p>\u3000\u3000SX1261\u5e7f\u6cdb\u5e94\u7528\u4e8e\u8d44\u4ea7\u8ddf\u8e2a\u3001\u667a\u80fd\u8ba1\u91cf\u3001\u4f9b\u5e94\u94fe\u7ba1\u7406\u7b49\u9886\u57df\uff0c\u7531\u4e8e\u5176\u4f4e\u529f\u8017\u7279\u6027\uff0c\u7279\u522b\u9002\u5408\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u7535\u6c60\u4f9b\u7535\u8bbe\u5907\u3002<\/p>\n\n\n\n<p>\u3000\u3000SX1261\u662f\u4e00\u6b3e\u529f\u80fd\u5f3a\u5927\u4e14\u7075\u6d3b\u7684\u65e0\u7ebf\u6536\u53d1\u5668\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u957f\u8ddd\u79bb\u3001\u4f4e\u529f\u8017\u7684\u65e0\u7ebf\u901a\u4fe1\u5e94\u7528\u3002\u6b63\u786e\u7406\u89e3\u548c\u5e94\u7528\u5176\u786c\u4ef6\u63a5\u53e3\u548c\u63a7\u5236\u65b9\u6cd5\u662f\u5b9e\u73b0\u9ad8\u6548\u901a\u4fe1\u7684\u5173\u952e\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"726\" height=\"450\" src=\"\/\/www.viralrail.com\/wp-content\/uploads\/2023\/11\/lorawan240729b.jpg\" alt=\"\" class=\"wp-image-96080\" srcset=\"\/\/www.viralrail.com\/wp-content\/uploads\/2023\/11\/lorawan240729b.jpg 726w, \/\/www.viralrail.com\/wp-content\/uploads\/2023\/11\/lorawan240729b-300x186.jpg 300w, \/\/www.viralrail.com\/wp-content\/uploads\/2023\/11\/lorawan240729b-600x372.jpg 600w\" sizes=\"(max-width: 726px) 100vw, 726px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 SX1261\u82af\u7247\u7684SPI\u63a5\u53e3\u914d\u7f6e<\/h2>\n\n\n\n<p>\u3000\u3000SX1261\u82af\u7247\u7684SPI\u63a5\u53e3\u914d\u7f6e\u8be6\u7ec6\u6307\u5357\u5982\u4e0b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>SPI\u63a5\u53e3\u5f15\u811a<\/strong>\uff1a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u7247\u9009NSS(\u82af\u7247\u9009\u62e9\u4fe1\u53f7)<\/li>\n\n\n\n<li>\u3000\u3000\u65f6\u949fSCK(\u4e32\u884c\u65f6\u949f)<\/li>\n\n\n\n<li>\u3000\u3000MOSI(\u4e3b\u8f93\u51fa\u4ece\u8f93\u5165)<\/li>\n\n\n\n<li>\u3000\u3000MISO(\u4e3b\u8f93\u5165\u4ece\u8f93\u51fa)\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>\u5c5e\u6027\u8981\u6c42<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000SPI\u63a5\u53e3\u662f\u5355\u5411\u63a5\u53e3\uff0c\u53ea\u80fd\u7531MCU\u5355\u7247\u673a\u5411SX1261\u53d1\u9001\u6570\u636e\uff0c\u800c\u4e0d\u80fd\u63a5\u6536\u6765\u81eaSX1261\u7684\u6570\u636e\u3002\u56e0\u6b64\uff0c\u5fc5\u987b\u786e\u4fddMCU\u80fd\u591f\u6b63\u786e\u5730\u63a7\u5236\u8fd9\u4e9b\u5f15\u811a\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003.&nbsp;<strong>\u65f6\u5e8f\u53c2\u6570\u8981\u6c42<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5f53\u79bb\u5f00Sleep\u6a21\u5f0f\u65f6\uff0c\u9700\u8981\u7279\u522b\u6ce8\u610f\u65f6\u5e8f\u53c2\u6570\u7684\u8bbe\u7f6e\uff0c\u4ee5\u786e\u4fdd\u6b63\u786e\u521d\u59cb\u5316\u548c\u901a\u4fe1\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004.&nbsp;<strong>\u4f7f\u7528\u5de5\u5177<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u53ef\u4ee5\u4f7f\u7528Lora\u5bc4\u5b58\u5668\u914d\u7f6e\u5de5\u5177\u6765\u8f93\u5165\u9700\u8981\u914d\u7f6e\u7684\u53c2\u6570\uff0c\u5982\u9891\u7387\u3001\u5e26\u5bbd\u548c\u6269\u9891\u56e0\u5b50\u7b49\u3002\u8fd9\u4e9b\u5de5\u5177\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u66f4\u65b9\u4fbf\u5730\u8fdb\u884cSPI\u63a5\u53e3\u7684\u914d\u7f6e\u548c\u7ba1\u7406\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30005.&nbsp;<strong>\u5de5\u4f5c\u6a21\u5f0f<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000SX1261\u652f\u6301\u591a\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff0c\u901a\u8fc7SPI\u63a5\u53e3\u53ef\u4ee5\u5bf9\u8fd9\u4e9b\u6a21\u5f0f\u8fdb\u884c\u5207\u6362\u548c\u914d\u7f6e\u3002\u5177\u4f53\u7684\u5de5\u4f5c\u6a21\u5f0f\u548c\u76f8\u5e94\u7684\u914d\u7f6e\u65b9\u6cd5\u53ef\u4ee5\u53c2\u8003\u76f8\u5173\u7684\u6570\u636e\u624b\u518c\u6216\u6280\u672f\u6587\u6863\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30006.&nbsp;<strong>\u901f\u5ea6\u548c\u65f6\u5e8f\u9650\u5236<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5982\u4f7f\u7528RP2040\u4f5c\u4e3aMCU\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u8c03\u6574SPI\u901f\u5ea6\u548c\u589e\u52a0RADIOLIB_MODULE_SPI_TIMEOUT\u6765\u907f\u514dGPIO\u8d85\u65f6\u9519\u8bef\u3002\u4f8b\u5982\uff0c\u5c06SPI\u901f\u5ea6\u4ece4 MHz\u8c03\u6574\u5230500 kHz\uff0c\u5e76\u589e\u52a0\u8d85\u65f6\u65f6\u95f4\uff0c\u53ef\u4ee5\u5b9e\u73b0\u82af\u7247\u68c0\u6d4b\u548c\u521d\u59cb\u5316\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30007.&nbsp;<strong>\u6570\u636e\u5305\u6536\u53d1<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000SPI\u63a5\u53e3\u8fd8\u7528\u4e8e\u64cd\u4f5c\u82af\u7247\u5185\u90e8\u7684FIFO\uff0c\u7528\u4e8e\u6536\u53d1\u6570\u636e\u5305\u3002\u8fd9\u9700\u8981\u901a\u8fc7SPI\u63a5\u53e3\u8bbf\u95eeLoRa\u82af\u7247\u5185\u90e8\u7684\u5bc4\u5b58\u5668\u6765\u5b8c\u6210\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 \u5982\u4f55\u5728SX1261\u82af\u7247\u4e0a\u5b9e\u73b0Rx Boosted Gain\u6a21\u5f0f?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728SX1261\u82af\u7247\u4e0a\u5b9e\u73b0Rx Boosted Gain\u6a21\u5f0f\uff0c\u9700\u8981\u901a\u8fc7\u4fee\u6539\u5bc4\u5b58\u5668\u7684\u503c\u6765\u5b9e\u73b0\u3002\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u786e\u5b9a\u5bc4\u5b58\u5668\u5730\u5740<\/strong>\uff1a\u6839\u636e\uff0cRX Gain\u503c\u7684\u5bc4\u5b58\u5668\u5730\u5740\u4e3a0x96.\u8fd9\u662f\u7528\u4e8e\u8bbe\u7f6e\u63a5\u6536\u589e\u76ca\u6a21\u5f0f\u7684\u5bc4\u5b58\u5668\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u8bbe\u7f6eRX Gain\u6a21\u5f0f<\/strong>\uff1a\u5728\u4e2d\u63d0\u5230\uff0cRadiolib\u5e93\u63d0\u4f9b\u4e86\u4e00\u4e2a\u51fd\u6570\u53ef\u4ee5\u542f\u7528\u6216\u7981\u7528Rx Boosted Gain\u6a21\u5f0f\u3002\u8fd9\u4e2a\u51fd\u6570\u7684\u53c2\u6570rxbgm\u4e3atrue\u65f6\u542f\u7528Rx Boosted Gain\u6a21\u5f0f\uff0cfalse\u65f6\u542f\u7528Rx Power Saving Gain\u6a21\u5f0f\u3002\u867d\u7136\u6ca1\u6709\u76f4\u63a5\u7ed9\u51fa\u4ee3\u7801\u793a\u4f8b\uff0c\u4f46\u53ef\u4ee5\u63a8\u65ad\u51fa\u9700\u8981\u901a\u8fc7\u7f16\u7a0b\u65b9\u5f0f\u8bbf\u95ee\u4e0a\u8ff0\u5bc4\u5b58\u5668\uff0c\u5e76\u5c06\u5176\u8bbe\u7f6e\u4e3a0x96(\u5373Boosted Gain\u6a21\u5f0f)\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7f16\u7a0b\u5b9e\u73b0<\/strong>\uff1a\u5728\u4e2d\uff0c\u63d0\u5230\u4e86\u4e00\u4e2a\u51fd\u6570setRadioInReceptionBoostedMode\uff0c\u8fd9\u53ef\u80fd\u662f\u4e00\u4e2a\u7528\u4e8e\u8bbe\u7f6e\u63a5\u6536\u589e\u76ca\u6a21\u5f0f\u7684\u51fd\u6570\u3002\u867d\u7136\u6ca1\u6709\u8be6\u7ec6\u8bf4\u660e\u5982\u4f55\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\uff0c\u4f46\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u4f60\u9700\u8981\u5728\u4f60\u7684\u4ee3\u7801\u4e2d\u627e\u5230\u6216\u521b\u5efa\u4e00\u4e2a\u7c7b\u4f3c\u7684\u529f\u80fd\uff0c\u4ee5\u786e\u4fdd\u5728\u5f00\u59cb\u63a5\u6536\u6570\u636e\u4e4b\u524d\u5c06RX Gain\u8bbe\u7f6e\u4e3aBoosted\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u8981\u5728SX1261\u82af\u7247\u4e0a\u5b9e\u73b0Rx Boosted Gain\u6a21\u5f0f\uff0c\u4f60\u9996\u5148\u9700\u8981\u8bbf\u95ee\u5bc4\u5b58\u5668\u5730\u57400x96\u5e76\u5c06\u5176\u8bbe\u7f6e\u4e3aBoosted 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