zynq在u-boot中导入导出Flash文件

正常情况下只用到flash前面1MB这里只写flash的前面1MB从板子中提取flash.bin到tftp服务器# sf read ram_addr flash_offset length# tftp服务器配置Zynqsetenv ipaddr192.168.3.13 setenv serverip192.168.3.17 setenv gatewayip192.168.3.1 setenv netmask255.255.255.0# spiFlash探测Zynqsf probe SF: Detected w25q256 with page size256Bytes, erase size4KiB, total32MiB# 将整片32MB flash写入内存Zynqsfread0x100000000x2000000 device0whole chip SF:33554432bytes 0x0 Read: OK# 将内存里的数据 上传到tftp服务器里命名为flash.binZynqtftpput 0x1000000 0x2000000 flash.bin Using ethernete000b000 device TFTP to server192.168.3.17;our IP address is192.168.3.13 Filenameflash.bin.Save address: 0x1000000 Save size: 0x2000000 Saving:4MiB/sdoneBytes transferred33554432(2000000hex)Zynq从tftp服务器的flash.bin下载到板子中这种情况应该用jtag启动wpfminglie:~/petalinux/z8$ petalinux-boot--jtag--prebuilt3# tftp服务器配置Zynqsetenv ipaddr192.168.3.13 setenv serverip192.168.3.17 setenv gatewayip192.168.3.1 setenv netmask255.255.255.0# 下载flash.bin到内存Zynqtftpboot 0x1000000 flash.bin Using ethernete000b000 device TFTP from server192.168.3.17;our IP address is192.168.3.13 Filenameflash.bin.Load address: 0x1000000 Loading:3.6MiB/sdoneBytes transferred33554432(2000000hex)# 探测Zynqsf probe SF: Detected w25q256 with page size256Bytes, erase size4KiB, total32MiB# 擦除前面1MZynqsf erase 0x000000 0x100000# 写入前面的1MBsfwrite0x100000000x100000