{"id":1659,"date":"2025-04-09T20:52:54","date_gmt":"2025-04-09T12:52:54","guid":{"rendered":"https:\/\/aoofoo.com\/?p=1659"},"modified":"2025-04-09T20:53:16","modified_gmt":"2025-04-09T12:53:16","slug":"py32f030-%e4%b8%b2%e5%8f%a3dma%e9%80%9a%e8%ae%af%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/aoofoo.com\/index.php\/2025\/04\/09\/py32f030-%e4%b8%b2%e5%8f%a3dma%e9%80%9a%e8%ae%af%e9%97%ae%e9%a2%98\/","title":{"rendered":"PY32F030 \u4e32\u53e3DMA\u901a\u8baf\u95ee\u9898"},"content":{"rendered":"<p>\u5728PY32F030\u8fd9\u4e2aMCU\u4e2d\uff0c\u5982\u679c\u4f7f\u7528\u5176\u4ed6MCU\u7684\u4ee3\u7801\uff0c\u4f1a\u51fa\u73b0\u95ee\u9898\uff0c\u5176\u95ee\u9898\u5c31\u51fa\u73b0\u5728<strong>SYSCFG<\/strong>\uff08System Configuration Controller\uff09\u914d\u7f6e\u5bc4\u5b58\u5668\uff0c\u8fd9\u662f\u4e00\u7c7b\u5bc4\u5b58\u5668\u7684\u7edf\u79f0\u3002<\/p>\n<p>SYSCFG\u4e2d\u6709\u5916\u8bbe\u5f15\u811a\u91cd\u6620\u5c04\u3001\u5916\u90e8\u4e2d\u65ad\u7ebf\u914d\u7f6e\u3001DMA\u8bf7\u6c42\u6620\u5c04\u3001\u7279\u5b9a\u7cfb\u7edf\u529f\u80fd\u7684\u914d\u7f6e\u5bc4\u5b58\u5668\u7b49\u3002<\/p>\n<p>\u800c\u6211\u4eec\u7684\u95ee\u9898\u5c31\u51fa\u73b0\u5728<strong>DMA\u8bf7\u6c42\u6620\u5c04<\/strong>\u4e0a\uff0cSYSCFG\u914d\u7f6e\u5bc4\u5b58\u5668\u4e2d\u6709\u4e00\u4e2a<b>SYSCFG_CFGR3<\/b>\u5bc4\u5b58\u5668\uff0c\u5982\u679c\u8981\u4f7f\u7528DMA\uff0c\u5c31\u9700\u8981\u628aDMA\u6620\u5c04\u5230\u5bf9\u5e94\u7684\u529f\u80fd\u901a\u9053\u4e0a\u3002\u5c31\u6bd4\u5982DMA1_MAP\u8981\u6620\u5c04\u5230USART1_RX\u4e0a\uff0c\u5c31\u9700\u8981\u628a<b>SYSCFG_CFGR3\u5bc4\u5b58\u5668\u7684\u7b2c6\u4f4d\u7f6e1\u5373\u53ef\u3002<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1660\" src=\"https:\/\/aoofoo.com\/wp-content\/uploads\/2025\/04\/\u5c4f\u5e55\u622a\u56fe-2025-04-09-205128.png\" alt=\"\" width=\"667\" height=\"506\" \/><\/b><\/p>\n<p>\u4f53\u73b0\u5728\u4ee3\u7801\u4e0a\u5c31\u662f\u5f88\u7b80\u5355\u7684\uff1a<\/p>\n<pre class=\"corepress-code-pre\"><code>\/\/UART1_RX\u662f\u7b2c\u516d\u4f4d\r\nSET_BIT(SYSCFG-&gt;CFGR3, 0x0600);<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728PY32F030\u8fd9\u4e2aMCU\u4e2d\uff0c\u5982\u679c\u4f7f\u7528\u5176\u4ed6MCU\u7684\u4ee3\u7801\uff0c\u4f1a\u51fa\u73b0\u95ee\u9898\uff0c\u5176\u95ee\u9898\u5c31\u51fa\u73b0\u5728SYSCFG\uff08System [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-1659","post","type-post","status-publish","format-standard","hentry","category-issue"],"_links":{"self":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts\/1659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/comments?post=1659"}],"version-history":[{"count":1,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts\/1659\/revisions"}],"predecessor-version":[{"id":1661,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/posts\/1659\/revisions\/1661"}],"wp:attachment":[{"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/media?parent=1659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/categories?post=1659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aoofoo.com\/index.php\/wp-json\/wp\/v2\/tags?post=1659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}