执行打开文件后,总是返回错误代码:0xA1(/* 磁盘尚未格式化,或者参数错误,需要由WINDOWS采用默认参数重新格式化 */) u盘格式化了没用,请问是什么原因? 谢谢!!

前面的DISK-READY通过了吗？使用的是什么单片机？你仔细的检查下DISK-BASE-BUF，看下在你打开文件的时候，这里面的数据是什么样的数据

DISK-READY通过了，u盘的大小都可以读的出来，用的是WINBOND(华邦)W78E58B，硬件会不会有问题啊？

一个u盘测试结果 执行打开命令之前DISK-BASE-BUF的内容为: USB disk ready. 0x0,0xf,0x57,0xff,0x0,0x0,0x2,0x0,0x4e,0x65,0x74,0x61,0x63,0x0,0x0,0x0,0x4f,0x6c,0x79,0x44,0x69,0x73,0x6b,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x31,0x2e,0x30,0x30,0x2f,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,Get USB store size!!!TotalSize = 490 MB 执行打开命令后: Open 0xa1(错误代码) 0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x0,0x0,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x0,0x0,0x0,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x0,0x0,0x0,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,0x30,open file failed. 另一个u盘的结果 ch374 initial is 0(0 ok 1 error). USB disk connect. Ready ? USB disk ready. 执行打开命令之前DISK-BASE-BUF的内容为: 0x0,0x7,0x9f,0xff,0x0,0x0,0x2,0x0,0x54,0x4f,0x53,0x48,0x49,0x42,0x41,0x20,0x54,0x72,0x61,0x6e,0x73,0x4d,0x65,0x6d,0x6f,0x72,0x79,0x20,0x20,0x20,0x20,0x20,0x31,0x2e,0x30,0x34,0x40,0x0,0x1,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,Get USB store size!!!TotalSize = 243M Open 0xb3(错误代码) 0xeb,0x58,0x90,0x4d,0x53,0x4f,0x53,0x35,0x2e,0x30,0x0,0x2,0x4,0x26,0x0,0x2,0x0,0x0,0x0,0x0,0xf8,0x0,0x0,0x3f,0xff,0x0,0x20,0x0,0x0,0x0,0xe0,0x9f,0x7,0x0,0xcd,0x3,0x0,0x0,0x0,0x0,0x0,0x0,0x2,0x0,0x0,0x0,0x1,0x0,0x6,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x29,0x85,0x52,0x7c,0x4f,0x20,0x4e,0x4d,0x45,0x20,0x20,0x20,0x20,0x46,0x41,0x54,0x33,0x32,0x20,0x20,0x20,0x33,0xc9,0x8e,0xd1,0xbc,0xf4,0x7b,0x8e,0xc1,0x8e,0xd9,0xbd,0x0,0x7c,0x88,0x4e,0x2,0x8a,0x56,0x40,0xb4,0x8,0xcd,0x13,0x73,0x5,0xb9,0xff,0xff,0x8a,0xf1,0x66,0xf,0xb6,0xc6,0x40,0x66,0xf,0xb6,0xd1,0x80,0xe2,0xb6,0xd1,0x80,0xe2,0xf7,0xe2,0x86,0xcd,0xc0,0xed,0x6,0x41,0x66,0xf,0xb7,0xc9,0x66,0xf7,0xe1,0x66,0x89,0x46,0xf8,0x83,0x7e,0x16,0x0,0x75,0x38,0x83,0x7e,0x2a,0x0,0x77,0x66,0x8b,0x46,0x1c,0x66,0x83,0xc0,0xc,0xbb,0x0,0x80,0xb9,0x1,0x0,0xe8,0x2b,0x0,0xe9,0x48,0x3,0xa0,0xfa,0x7d,0xb4,0x7d,0x8b,0xf0,0xac,0x0,0x0,0x84,0xc0,0x74,0x17,0x3c,0x74,0x9,0xb4,0xe,0xbb,0x7,0x0,0xcd,0x10,0xeb,0xa0,0xfb,0x7d,0xeb,0xe5,0xa0,0xf9,0x7d,0xeb,0xe0,0x98,0xcd,0x16,0xcd,0x19,0x66,0x60,0x66,0x3b,0x46,0xf8,0xf,0x82,0x4a,0x0,0x66,0x6a,0x0,0x66,0x50,0x6,0x53,0x66,0x68,0x10,0x0,0x1,0x0,0x80,0x7e,0x2,0x0,0xf,0x85,0x20,0x0,0xb4,0x41,0xbb,0x41,0xbb,0x55,0x8a,0x56,0xcd,0x13,0xf,0x82,0x1c,0x0,0x81,0xfb,0x55,0xaa,0xf,0x85,0x14,0x0,0xf6,0x1,0xf,0x84,0xd,0x0,0xfe,0x2,0xb4,0x42,0x8a,0x56,0x40,0x8b,0xf4,0xcd,0x13,0xb0,0xf9,0x66,0x58,0x66,0x58,0x66,0x58,0x66,0x58,0xeb,0x2a,0x66,0x33,0xd2,0x66,0xf,0xb7,0x4e,0x18,0x66,0xf7,0xf1,0xfe,0x0,0x0,0x0,0x0,0xc2,0x8a,0xca,0x66,0x8b,0x66,0xc1,0xea,0x10,0xf7,0x1a,0x86,0xd6,0x8a,0x56,0x40,0x8a,0xe8,0xc0,0xe4,0x6,0xa,0xcc,0xb8,0x1,0x2,0xcd,0x13,0x66,0x61,0xf,0x82,0x54,0xff,0x81,0xc3,0x0,0x2,0x66,0x40,0x49,0xf,0x85,0x71,0xff,0xc3,0x4e,0x54,0x4c,0x44,0x52,0x20,0x20,0x20,0x20,0x20,0x20,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,open file failed.