A_Coder
- 山东省济南市
- 单片机 嵌入式 DSP FPGA/CPLD
- 智能硬件
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无线AC方案
- 2017-01-10
物联网中的无线网络应该是个核心技术，那么请指导一个实现无线网络中AC的软、硬件解决方案，要求至少支持1024的AP点，包括芯片型号，另外采用集中式转发的方式，这种解决方案的上下行能到多大带宽，谢谢
求助 这是什么错误
- 2016-01-14
NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit) Scanning device for bad blocks Bad eraseblock 1 at 0x000000020000 Bad eraseblock 2 at 0x000000040000 Bad eraseblock 3 at 0x000000060000 Bad eraseblock 4 at 0x000000080000 Bad eraseblock 5 at 0x0000000a0000 Bad eraseblock 6 at 0x0000000c0000 Bad eraseblock 7 at 0x0000000e0000 Bad eraseblock 8 at 0x000000100000 Bad eraseblock 9 at 0x000000120000 Bad eraseblock 10 at 0x000000140000 Bad eraseblock 11 at 0x000000160000 Bad eraseblock 12 at 0x000000180000 Bad eraseblock 13 at 0x0000001a0000 Bad eraseblock 14 at 0x0000001c0000 Bad eraseblock 15 at 0x0000001e0000 后面还有很多，每页都报错 什么错误啊 是ECC？
uboot中擦写nand的参数quiet是什么玩意
- 2016-01-13
struct nand_erase_options { ulong length; /* number of bytes to erase */ ulong offset; /* first address in NAND to erase */ int quiet; /* don\'t display progress messages */ int jffs2; /* if true: format for jffs2 usage * (write appropriate cleanmarker blocks) */ int scrub; /* if true, really clean NAND by erasing * bad blocks (UNSAFE) */ }; 不只是显示作用吧，感觉对flash影响挺大，谁能告诉我uboot中擦写nand的参数quiet是什么玩意