改为2M flash

.vscode/launch.json

@@ -1,5 +1,5 @@
 {
-  // 使用 IntelliSense 了解相关属性。 
+  // 使用 IntelliSense 了解相关属性。
   // 悬停以查看现有属性的描述。
   // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
@@ -31,7 +31,7 @@
       "showDevDebugOutput": "raw",
       "servertype": "jlink",
       "serverpath": "tools/v7.50a/JLinkGDBServerCL.exe",
-      "device": "stm32f429ig",
+      "device": "stm32f429bi",
       "interface": "swd",
       "loadFiles": [],
       "svdFile": "Project/STM32F429.svd",

.vscode/tasks.json

@@ -37,10 +37,10 @@
             "type": "shell",
             "command": "tools/v7.50a/JLink.exe",
             "args": [
-              "-autoconnect", "1", 
+              "-autoconnect", "1",
-              "-device", "stm32f429ig", 
+              "-device", "stm32f429bi",
-              "-if", "swd", 
+              "-if", "swd",
-              "-speed", "4000", 
+              "-speed", "4000",
               "-commandfile", "download.jlink"
             ],
             "group": "build",

Project/stm32f429ighx_flash.ld

@@ -63,7 +63,7 @@ MEMORY
 {
 RAM (xrw)      : ORIGIN = 0x2000000C, LENGTH = 0x0002FFF4
 CCMRAM (xrw)      : ORIGIN = 0x10000000, LENGTH = 64K
-FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 1024K
+FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 2048K
 }
 
 /* Define output sections */