{"id":6268,"date":"2026-10-05T20:27:00","date_gmt":"2026-10-05T11:27:00","guid":{"rendered":"https:\/\/www.ramxeed.com\/zh-tw\/?post_type=column&#038;p=6268"},"modified":"2026-10-01T11:40:31","modified_gmt":"2026-10-01T02:40:31","slug":"reducing-sram-buffer-with-feram-2","status":"publish","type":"column","link":"https:\/\/www.ramxeed.com\/zh-tw\/tech-column\/reducing-sram-buffer-with-feram-2\/","title":{"rendered":"SRAM \u7de9\u885d\u5340\u524a\u6e1b\u65b9\u6cd5\uff1a\u900f\u904e FRAM \u76f4\u63a5\u5beb\u5165\u5be6\u73fe\u8cc7\u6599\u7d50\u69cb\u6700\u4f73\u5316"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u672c\u6587\u5c07\u89e3\u8aaa\u5d4c\u5165\u5f0f\u8a2d\u5099\u4e2d SRAM \u7de9\u885d\u5340\u524a\u6e1b\u6240\u9762\u81e8\u7684\u8ab2\u984c\u8207\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u900f\u904e\u6d3b\u7528 FRAM\uff08FeRAM\u3001\u5f37\u8a98\u96fb\u9ad4\u8a18\u61b6\u9ad4\uff09\u7684\u76f4\u63a5\u5beb\u5165\u7279\u6027\uff0c\u6700\u4f73\u5316\u8cc7\u6599\u7d50\u69cb\uff0c\u6392\u9664\u4e2d\u9593\u7de9\u885d\u5340\uff0c\u540c\u6642\u964d\u4f4e\u529f\u8017\u8207\u8a18\u61b6\u9ad4\u4f7f\u7528\u91cf\uff0c\u4ecb\u7d39\u4e00\u7a2e\u6709\u6548\u7684\u8a2d\u8a08\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6b63\u5728\u8a55\u4f30 SRAM \u7de9\u885d\u5340\u524a\u6e1b\u6216 FRAM \u5c0e\u5165\u65b9\u6848\u55ce\uff1f<\/strong><br>\u82e5\u60a8\u7684\u5d4c\u5165\u5f0f\u7cfb\u7d71\u9762\u81e8 SRAM \u5bb9\u91cf\u4e0d\u8db3\u3001\u8cc7\u6599\u62f7\u8c9d\u904e\u591a\u3001\u529f\u8017\u589e\u52a0\u7b49\u8a2d\u8a08\u8ab2\u984c\uff0c\u6b61\u8fce\u8207\u6211\u5011\u8a0e\u8ad6\u9069\u5408\u7684\u8a18\u61b6\u9ad4\u67b6\u69cb\u8207\u61c9\u7528\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p class=\"has-text-color has-link-color wp-elements-1 wp-block-paragraph\" style=\"color:#d12d7e\">\n  <strong>\n    <a href=\"https:\/\/info.sales.ramxeed.com\/l\/990132\/2025-10-30\/zxjzf\" data-type=\"link\" data-id=\"https:\/\/info.sales.ramxeed.com\/l\/990132\/2025-10-30\/zxjzf\" style=\"text-decoration: underline;\">\n\u8aee\u8a62 FRAM \u8a18\u61b6\u9ad4\u67b6\u69cb\u65b9\u6848\n    <\/a>\n  <\/strong>\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SRAM \u7de9\u885d\u5340\u524a\u6e1b\u9700\u6c42\u7684\u8a2d\u8a08\u80cc\u666f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5d4c\u5165\u5f0f\u8a2d\u5099\u4e2d\uff0cSRAM \u5bb9\u91cf\u901a\u5e38\u6709\u9650\uff0c\u7576\u901a\u8a0a\u3001\u63a7\u5236\u8207\u904b\u7b97\u540c\u6642\u57f7\u884c\u6642\uff0c\u66ab\u5b58\u7de9\u885d\u5340\u5bb9\u6613\u7522\u751f\u8cc7\u6e90\u7af6\u722d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u65e5\u8a8c\u8a18\u9304\u6216\u611f\u6e2c\u5668\u8cc7\u6599\u9023\u7e8c\u8a18\u9304\u7b49\u61c9\u7528\u4e2d\uff0c\u8cc7\u6599\u62f7\u8c9d\u6b21\u6578\u589e\u52a0\uff0c\u5bb9\u6613\u9020\u6210 Stack \u8cc7\u6e90\u8017\u76e1\u8207\u8a18\u61b6\u9ad4\u788e\u7247\u5316\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0c\u524a\u6e1b\u7de9\u885d\u5340\u5c0d\u65bc\u63d0\u5347\u6027\u80fd\u8207\u53ef\u9760\u6027\u5169\u65b9\u9762\u90fd\u975e\u5e38\u91cd\u8981\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c24\u5176\u5728\u4f4e\u529f\u8017 MCU \u4e2d\uff0c\u5916\u90e8\u8a18\u61b6\u9ad4\u983b\u5bec\u4e5f\u8f03\u6709\u9650\uff0c\u4e0d\u5fc5\u8981\u7684\u7de9\u885d\u8655\u7406\u6703\u9020\u6210\u5ef6\u9072\u589e\u52a0\u8207\u529f\u8017\u60e1\u5316\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5d4c\u5165\u5f0f\u7cfb\u7d71\u4e2d\u7684 SRAM \u8cc7\u6e90\u9650\u5236<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SRAM \u5177\u5099\u4f4e\u5ef6\u9072\u8207\u96a8\u6a5f\u5b58\u53d6\u80fd\u529b\uff0c\u56e0\u6b64\u5ee3\u6cdb\u7528\u65bc\u4e2d\u65b7\u8655\u7406\u8207 DMA \u5de5\u4f5c\u5340\u57df\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u800c\uff0cSRAM \u5bb9\u91cf\u901a\u5e38\u6709\u9650\uff0cStack \u8207 Heap \u6703\u5728\u76f8\u540c\u7a7a\u9593\u5167\u7522\u751f\u7af6\u722d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u82e5\u56fa\u5b9a\u914d\u7f6e\u901a\u8a0a Stack \u6216\u52a0\u5bc6\u8655\u7406\u6240\u9700\u7684\u66ab\u5b58\u5340\u57df\uff0c\u53ef\u4f7f\u7528\u7a7a\u9593\u5c07\u6703\u6e1b\u5c11\uff1b\u800c\u6700\u5927 Stack \u4f7f\u7528\u91cf\u4f30\u7b97\u932f\u8aa4\u6642\uff0c\u4e5f\u53ef\u80fd\u5728\u6975\u7aef\u689d\u4ef6\u4e0b\u9020\u6210\u8cc7\u6599\u7834\u58de\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0c\u82e5\u5728 C \u8a9e\u8a00\u7a0b\u5f0f\u4e2d\u904e\u5ea6\u4f7f\u7528\u81ea\u52d5\u8b8a\u6578\u6216\u66ab\u5b58\u9663\u5217\uff0c\u5cf0\u503c SRAM \u4f7f\u7528\u91cf\u53ef\u80fd\u6703\u4f9d\u57f7\u884c\u6d41\u7a0b\u800c\u7522\u751f\u8b8a\u5316\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u70ba\u78ba\u4fdd\u5b89\u5168\u88d5\u5ea6\u800c\u589e\u52a0 SRAM \u9810\u7559\u7a7a\u9593\uff0c\u53cd\u800c\u53ef\u80fd\u9020\u6210 SRAM \u8cc7\u6e90\u4e0d\u8db3\uff0c\u6700\u5f8c\u88ab\u8feb\u9078\u64c7\u964d\u4f4e\u529f\u80fd\u6216\u589e\u52a0\u5916\u90e8 RAM\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SRAM \u7de9\u885d\u5340\u81a8\u8139\u6240\u9020\u6210\u7684\u554f\u984c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u589e\u52a0\u7de9\u885d\u5340\u96d6\u7136\u80fd\u964d\u4f4e\u8cc7\u6599\u907a\u5931\u98a8\u96aa\uff0c\u4f46\u6bcf\u6b21\u5c07\u8cc7\u6599\u5f9e\u63a5\u6536\u7de9\u885d\u5340\u8907\u88fd\u81f3\u8655\u7406\u7de9\u885d\u5340\uff0c\u518d\u8907\u88fd\u81f3\u4fdd\u5b58\u7de9\u885d\u5340\u6642\uff0c\u90fd\u6703\u6d88\u8017\u8a18\u61b6\u9ad4\u983b\u5bec\u8207 CPU \u6642\u9593\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5feb\u53d6\u5bb9\u91cf\u8f03\u5c0f\u7684 MCU \u4e2d\uff0c\u8cc7\u6599\u62f7\u8c9d\u6703\u76f4\u63a5\u8f49\u5316\u70ba\u5ef6\u9072\uff0c\u4e26\u53ef\u80fd\u9020\u6210\u9031\u671f\u4efb\u52d9\u5ef6\u9072\uff08Jitter\uff09\u6216\u932f\u904e Deadline\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0c\u529f\u8017\u4e5f\u6703\u589e\u52a0\uff0c\u9032\u4e00\u6b65\u5f71\u97ff\u8a2d\u5099\u6563\u71b1\u8207\u96fb\u6c60\u58fd\u547d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6642\uff0c\u7de9\u885d\u5340\u908a\u754c\u7ba1\u7406\u8b8a\u5f97\u66f4\u52a0\u8907\u96dc\uff0c\u5bb9\u6613\u7522\u751f Off-by-one Error\uff08\u908a\u754c\u503c\u932f\u8aa4\uff09\u6216\u6392\u4ed6\u63a7\u5236\u4e0d\u8db3\u7b49\u554f\u984c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u9664\u932f\u968e\u6bb5\uff0c\u7531\u65bc\u8cc7\u6599\u5167\u5bb9\u6703\u5728\u5404\u8655\u7406\u968e\u6bb5\u6301\u7e8c\u8b8a\u5316\uff0c\u4f7f\u554f\u984c\u8ffd\u8e64\u66f4\u52a0\u56f0\u96e3\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u50b3\u7d71 SRAM \u524a\u6e1b\u65b9\u6cd5\u7684\u9650\u5236<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7e2e\u5c0f\u8cc7\u6599\u578b\u5225\u5bec\u5ea6\u6216\u5c07\u5e38\u6578\u914d\u7f6e\u65bc Flash \u7b49\u975c\u614b\u6700\u4f73\u5316\u65b9\u6cd5\u96d6\u7136\u6709\u6548\uff0c\u4f46\u5728\u8f38\u5165\u8cc7\u6599\u6301\u7e8c\u8b8a\u5316\u7684\u4e32\u6d41\u8655\u7406\u4e2d\uff0c\u4ecd\u7136\u9700\u8981\u4fdd\u7559\u66ab\u5b58\u5340\u57df\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ring Buffer \u4e5f\u96e3\u4ee5\u5927\u5e45\u964d\u4f4e\u5cf0\u503c\u4f7f\u7528\u91cf\uff0c\u800c\u8cc7\u6599\u58d3\u7e2e\u5247\u6703\u589e\u52a0\u8a08\u7b97\u91cf\u8207\u5ef6\u9072\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0c\u52d5\u614b\u8a18\u61b6\u9ad4\u914d\u7f6e\u5bb9\u6613\u7522\u751f\u788e\u7247\u5316\uff0c\u4f7f\u9577\u6642\u9593\u904b\u4f5c\u6642\u7684\u6700\u58de\u60c5\u6cc1\u9010\u6f38\u6d6e\u73fe\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u5c07\u7de9\u885d\u5340\u7e2e\u5c0f\u904e\u5ea6\uff0c\u5247\u9700\u8981\u5c0e\u5165\u91cd\u65b0\u50b3\u8f38\u63a7\u5236\u7b49\u6a5f\u5236\u4f86\u907f\u514d\u8cc7\u6599\u907a\u5931\uff0c\u6700\u7d42\u53cd\u800c\u589e\u52a0\u7a0b\u5f0f\u78bc\u898f\u6a21\u8207\u9a57\u8b49\u5de5\u6642\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6b63\u5728\u9762\u81e8 MCU \u7684 SRAM \u4e0d\u8db3\u6216\u7de9\u885d\u5340\u904e\u5927\u7684\u8a2d\u8a08\u554f\u984c\u55ce\uff1f<\/strong><br>\u82e5\u60a8\u7684\u5d4c\u5165\u5f0f\u7cfb\u7d71\u9700\u8981\u964d\u4f4e SRAM \u4f7f\u7528\u91cf\u3001\u6e1b\u5c11\u8cc7\u6599\u62f7\u8c9d\u6b21\u6578\uff0c\u6216\u6539\u5584\u9577\u6642\u9593\u904b\u4f5c\u6642\u7684\u8a18\u61b6\u9ad4\u8cc7\u6e90\u9650\u5236\uff0c\u6211\u5011\u53ef\u4f9d\u64da\u60a8\u7684\u61c9\u7528\u9700\u6c42\u63d0\u4f9b\u6280\u8853\u8a0e\u8ad6\u3002<\/p>\n\n\n\n<p class=\"has-text-color has-link-color wp-elements-2 wp-block-paragraph\" style=\"color:#d12d7e\"><strong> <a style=\"text-decoration: underline;\" href=\"https:\/\/info.sales.ramxeed.com\/l\/990132\/2025-10-30\/zxjzf\" data-type=\"link\" data-id=\"https:\/\/info.sales.ramxeed.com\/l\/990132\/2025-10-30\/zxjzf\">\u8aee\u8a62 SRAM \u524a\u6e1b\u8207 FRAM \u61c9\u7528 <\/a> <\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FRAM \u76f4\u63a5\u5beb\u5165\u6280\u8853\u57fa\u790e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">FRAM \u96d6\u7136\u5c6c\u65bc\u975e\u63ee\u767c\u6027\u8a18\u61b6\u9ad4\uff0c\u4f46\u5177\u5099\u63a5\u8fd1 SRAM \u7684\u9ad8\u901f\u5beb\u5165\u80fd\u529b\uff0c\u4e14\u4e0d\u9700\u8981\u4e8b\u524d\u62b9\u9664\u5373\u53ef\u8986\u5beb\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u900f\u904e\u6b64\u7279\u6027\uff0c\u53ef\u4ee5\u5efa\u7acb\u4e0d\u7d93\u904e\u66ab\u5b58\u9000\u907f\u3001\u76f4\u63a5\u4fdd\u5b58\u8cc7\u6599\u7684\u67b6\u69cb\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c07 FRAM \u4e0d\u50c5\u8996\u70ba\u5916\u90e8\u5132\u5b58\u88dd\u7f6e\uff0c\u800c\u662f\u4f5c\u70ba\u57f7\u884c\u671f\u9593\u7684\u8cc7\u6599\u7a7a\u9593\u4f7f\u7528\uff0c\u5373\u53ef\u6709\u6548\u524a\u6e1b\u7de9\u885d\u5340\u9700\u6c42\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">FRAM \u7684\u5beb\u5165\u7279\u6027\u8207 SRAM \u7684\u5dee\u7570<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">FRAM \u5229\u7528\u5f37\u8a98\u96fb\u9ad4\u6975\u5316\u53cd\u8f49\u9032\u884c\u8cc7\u6599\u4fdd\u5b58\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u50cf Flash \u4e00\u6a23\u9032\u884c\u5340\u584a\u62b9\u9664\uff0c\u53ef\u4ee5\u5be6\u73fe Byte \u55ae\u4f4d\u7684\u96a8\u6a5f\u5beb\u5165\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0cFRAM \u5177\u5099\u6975\u9ad8\u7684\u62b9\u5beb\u58fd\u547d\uff0c\u975e\u5e38\u9069\u5408\u983b\u7e41\u66f4\u65b0\u8cc7\u6599\u7684\u61c9\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53e6\u4e00\u65b9\u9762\uff0cSRAM \u5c6c\u65bc\u63ee\u767c\u6027\u8a18\u61b6\u9ad4\uff0c\u9700\u8981\u6301\u7e8c\u4f9b\u96fb\u7dad\u6301\u8cc7\u6599\uff0c\u4f46\u5176\u5ef6\u9072\u6700\u4f4e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">FRAM \u96d6\u7136\u5b58\u5728\u4e9b\u5fae\u5beb\u5165\u96fb\u6d41\u589e\u52a0\u8207\u5468\u908a\u96fb\u8def\u9650\u5236\uff0c\u4f46\u80fd\u540c\u6642\u517c\u9867\u8cc7\u6599\u4fdd\u7559\u80fd\u529b\u8207\u9ad8\u901f\u6027\u80fd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c24\u5176\u5728\u65e5\u8a8c\u8a18\u9304\u61c9\u7528\u4e2d\uff0c\u7531\u65bc\u53ef\u5728\u8cc7\u6599\u63a5\u6536\u5f8c\u7acb\u5373\u5b8c\u6210\u6c38\u4e45\u4fdd\u5b58\uff0c\u56e0\u6b64\u53ef\u4ee5\u7701\u7565\u96d9\u91cd\u7de9\u885d\u5340\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7531\u65bc\u4e0d\u5b58\u5728\u7b49\u5f85\u62b9\u9664\u6642\u9593\uff0c\u4e5f\u80fd\u964d\u4f4e\u5ef6\u9072\u8b8a\u52d5\uff0c\u975e\u5e38\u9069\u5408\u5373\u6642\u63a7\u5236\u61c9\u7528\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5c07 FRAM \u4f5c\u70ba\u8a18\u61b6\u9ad4\u7a7a\u9593\u4f7f\u7528\u7684\u8a2d\u8a08\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u642d\u8f09\u5167\u5efa FRAM \u7684 MCU \u4e2d\uff0c\u53ef\u4ee5\u900f\u904e Linker Script \u5c07 Data Section \u914d\u7f6e\u65bc FRAM\uff0c\u4e26\u900f\u904e Pointer \u76f4\u63a5\u66f4\u65b0\u8cc7\u6599\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5373\u4f7f\u4f7f\u7528\u5916\u90e8 FRAM\uff0c\u53ea\u8981\u900f\u904e Driver Layer \u9032\u884c\u62bd\u8c61\u5316\uff0c\u4e5f\u80fd\u50cf\u9663\u5217\u4e00\u6a23\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u8981\u7684\u662f\u5efa\u7acb\u4e0d\u7d93\u904e Cache \u6216 Buffer\uff0c\u800c\u7531 Application Layer \u76f4\u63a5\u9032\u884c\u5373\u6642\u5beb\u5165\u7684\u8def\u5f91\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6642\uff0c\u9700\u8981\u660e\u78ba\u5b9a\u7fa9\u5beb\u5165\u5b8c\u6210\u6642\u6a5f\uff0c\u4e26\u52a0\u5165\u56e0\u61c9\u96fb\u6e90\u4e2d\u65b7\u7684 Fail-safe \u6d41\u7a0b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 Memory-mapped \u67b6\u69cb\u4e2d\uff0c\u4e5f\u9700\u8981\u5c07\u5b58\u53d6\u6b0a\u9650\u8207\u4fdd\u8b77\u6a5f\u5236\u7d0d\u5165\u8a2d\u8a08\uff0c\u4ee5\u907f\u514d\u932f\u8aa4\u5beb\u5165\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u76f4\u63a5\u5beb\u5165\u4e2d\u7684\u53ef\u9760\u6027\u8207\u8010\u4e45\u6027<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">FRAM \u96d6\u7136\u5177\u5099\u6975\u9ad8\u7684\u62b9\u5beb\u58fd\u547d\uff0c\u4f46\u4e26\u975e\u771f\u6b63\u7121\u9650\u5236\uff0c\u56e0\u6b64\u4ecd\u9700\u8981\u9032\u884c\u66f4\u65b0\u983b\u7387\u5206\u6563\u8a2d\u8a08\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u900f\u904e\u65e5\u8a8c\u7d50\u69cb\u5316\u8a2d\u8a08\u6216\u985e\u4f3c\u78e8\u640d\u5747\u8861\uff08Wear Leveling\uff09\u7684\u914d\u7f6e\u65b9\u5f0f\uff0c\u53ef\u907f\u514d\u8cc7\u6599\u96c6\u4e2d\u5beb\u5165\u7279\u5b9a\u5340\u57df\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0c\u70ba\u56e0\u61c9\u96fb\u6e90\u4e2d\u65b7\u6642\u7684\u4e2d\u9014\u66f4\u65b0\u554f\u984c\uff0c\u53ef\u900f\u904e Header \u8207\u8cc7\u6599\u78ba\u5b9a\uff08Commit\uff09Flag \u5be6\u73fe Atomic Update\uff08\u539f\u5b50\u66f4\u65b0\uff09\uff0c\u4e26\u52a0\u5165 Checksum \u9032\u884c\u8cc7\u6599\u9a57\u8b49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u82e5\u642d\u914d\u932f\u8aa4\u6aa2\u6e2c\u78bc\uff08Error Detection Code\uff09\uff0c\u5373\u4f7f\u53d7\u5230\u532f\u6d41\u6392\u96dc\u8a0a\u6216\u77ac\u9593\u65b7\u96fb\u5f71\u97ff\uff0c\u4e5f\u80fd\u5075\u6e2c\u8cc7\u6599\u640d\u58de\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u900f\u904e\u8cc7\u6599\u7d50\u69cb\u6700\u4f73\u5316\u5be6\u73fe SRAM \u7de9\u885d\u5340\u524a\u6e1b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u82e5\u8981\u5f9e\u6839\u672c\u4e0a\u524a\u6e1b SRAM \u4f7f\u7528\u91cf\uff0c\u4e0d\u80fd\u53ea\u9032\u884c\u5bb9\u91cf\u58d3\u7e2e\uff0c\u800c\u5fc5\u9808\u91cd\u65b0\u8a2d\u8a08\u8cc7\u6599\u6d41\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5 FRAM \u53ef\u76f4\u63a5\u4fdd\u5b58\u8cc7\u6599\u70ba\u524d\u63d0\uff0c\u6392\u9664\u4e2d\u9593\u7de9\u885d\u5340\u8207\u591a\u968e\u6bb5\u8cc7\u6599\u62f7\u8c9d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5f9e\u62f7\u8c9d\u578b\u8a2d\u8a08\u8f49\u63db\u70ba\u96f6\u62f7\u8c9d\u8a2d\u8a08<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u50b3\u7d71\u8a2d\u8a08\u901a\u5e38\u662f\u5728\u8cc7\u6599\u63a5\u6536\u5f8c\uff0c\u5148\u5132\u5b58\u81f3 SRAM\uff0c\u518d\u9032\u884c\u8cc7\u6599\u6574\u7406\uff0c\u6700\u5f8c\u5beb\u5165\u6c38\u4e45\u5132\u5b58\u5340\u57df\uff0c\u5f62\u6210\u96d9\u968e\u6bb5\u8655\u7406\u67b6\u69cb\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u82e5\u6539\u70ba\u8cc7\u6599\u63a5\u6536\u5f8c\u7acb\u5373\u5beb\u5165 FRAM \u7684\u6d41\u7a0b\uff0c\u5373\u53ef\u7701\u7565\u4e2d\u9593\u7de9\u885d\u5340\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u900f\u904e\u8b93 Pointer \u76f4\u63a5\u6307\u5411\u6c38\u4e45\u8cc7\u6599\u5340\u57df\uff0c\u4e26\u5728\u8cc7\u6599\u6240\u5728\u4f4d\u7f6e\u76f4\u63a5\u9032\u884c\u8655\u7406\uff0c\u53ef\u964d\u4f4e\u8cc7\u6599\u62f7\u8c9d\u6b21\u6578\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0c\u82e5\u5c07 DMA \u50b3\u8f38\u76ee\u6a19\u8a2d\u5b9a\u70ba FRAM\uff0c\u4e5f\u80fd\u964d\u4f4e CPU \u4ecb\u5165\u7a0b\u5ea6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u8a08\u6642\u9700\u8981\u5b9a\u7fa9\u7dad\u6301\u8cc7\u6599\u4e00\u81f4\u6027\u7684\u6700\u5c0f\u66f4\u65b0\u55ae\u4f4d\uff0c\u4e26\u5efa\u7acb\u907f\u514d\u7559\u4e0b\u4e2d\u9593\u72c0\u614b\u7684\u66f4\u65b0\u9806\u5e8f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u96f6\u62f7\u8c9d\u5316\u4e0d\u50c5\u80fd\u63d0\u5347\u901f\u5ea6\uff0c\u4e5f\u80fd\u76f4\u63a5\u964d\u4f4e SRAM \u5cf0\u503c\u4f7f\u7528\u91cf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6c38\u4e45\u8cc7\u6599\u7d50\u69cb\u7684\u8a2d\u8a08\u91cd\u9ede<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7576 FRAM \u4f5c\u70ba\u4e3b\u8981\u8cc7\u6599\u8a18\u61b6\u7a7a\u9593\u4f7f\u7528\u6642\uff0c\u9700\u8981\u8a2d\u8a08\u5373\u4f7f\u96fb\u6e90\u4e2d\u65b7\u5f8c\u4e5f\u4e0d\u6703\u9020\u6210\u8cc7\u6599\u4e0d\u4e00\u81f4\u7684\u67b6\u69cb\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a1\u7528\u56fa\u5b9a\u9577\u5ea6 Record \u6216 Log \u7d50\u69cb\uff0c\u4e26\u4f7f\u7528\u8ffd\u52a0\u5f0f\u66f4\u65b0\uff08Append\uff09\u65b9\u5f0f\uff0c\u53ef\u5c07\u8cc7\u6599\u640d\u58de\u5f71\u97ff\u9650\u5236\u5728\u6700\u5c0f\u7bc4\u570d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 Header \u4e2d\u52a0\u5165\u7248\u672c\u7de8\u865f\uff08Generation Number\uff09\u6216\u6709\u6548 Flag\uff0c\u4e26\u900f\u904e Atomic \u5207\u63db\u65b9\u5f0f\u7ba1\u7406\u8cc7\u6599\u72c0\u614b\uff0c\u662f\u6709\u6548\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b64\u5916\uff0c\u53ef\u900f\u904e Index Table \u7ba1\u7406\u53ef\u8b8a\u9577\u5ea6\u8cc7\u6599\uff0c\u4ee5\u964d\u4f4e\u788e\u7247\u5316\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u85c9\u6b64\uff0c\u5373\u4f7f\u4e0d\u5728 SRAM \u4e2d\u914d\u7f6e\u66ab\u5b58\u6574\u7406\u5340\u57df\uff0c\u4e5f\u80fd\u76f4\u63a5\u66f4\u65b0\u8cc7\u6599\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6027\u80fd\u3001\u529f\u8017\u8207\u9762\u7a4d\u7684\u6b0a\u8861\u8a55\u4f30<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u524a\u6e1b SRAM \u6709\u52a9\u65bc\u964d\u4f4e\u6676\u7247\u9762\u7a4d\u8207\u5f85\u6a5f\u529f\u8017\uff0c\u4f46\u82e5 FRAM \u5b58\u53d6\u983b\u7387\u589e\u52a0\uff0c\u4e5f\u53ef\u80fd\u9020\u6210\u5beb\u5165\u96fb\u6d41\u8207\u532f\u6d41\u6392\u5360\u7528\u7b49\u554f\u984c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0c\u9700\u8981\u900f\u904e\u5be6\u969b\u91cf\u6e2c\u78ba\u8a8d\u5ef6\u9072\u8207\u96fb\u6d41\u6ce2\u5f62\uff0c\u4e26\u5b9a\u91cf\u5206\u6790\u5c0d\u9031\u671f\u4efb\u52d9\u7684\u5f71\u97ff\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u61c9\u6bd4\u8f03\u56e0\u53d6\u6d88 Buffer \u800c\u6e1b\u5c11\u7684\u8cc7\u6599\u62f7\u8c9d\u6642\u9593\uff0c\u4ee5\u53ca\u76f4\u63a5\u5beb\u5165\u6240\u589e\u52a0\u7684\u7b49\u5f85\u6642\u9593\u3002<\/p>\n\n\n\n<p 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