sd卡烧写分为自动烧写与手动烧写：
自动烧写
在做好的启动卡内复制相关镜像后，接到板子上，系统会根据镜像自动更新nand里的镜像。烧写过程无须人工干预，适合量产时使用。
手动烧写
在sd卡复制镜像后，启动板子，进入菜单选择要更新的镜像，自定义程度较自动烧写高。
tf卡脱机自动烧写
自动烧写要先制作tf启动卡，具体方法可以参考《制作sd启动卡》章节。
准备镜像
光盘的烧写镜像在：TQIMX6UL_COREB_CD/出厂烧录镜像合集/Linux 镜像/，使用sd卡脱机烧写时，拷贝到tf卡中的镜像需要修改为默认名称，以下是使用的默认名称。
镜像内容
| 默认镜像名称
| Bootloader镜像
| u-boot.imx
| 内核镜像
| zImage
| Dtb镜像
| tq-imx6ul.dtb
| 文件系镜像
| rootfs.ubifs
|
1. 将做好的tf卡(启动卡)插到电脑上。
2. 将要烧写的镜像复制tf卡里的第一个分区(vfat 格式)里的根目录下。
注： tq-imx6ul_net0_uart.dtb和tq-imx6ul_net0_net1.dtb根据实际要求二选一。
tq-imx6ul_net0_uart.dtb为双网卡+6 串口的配置，tq-imx6ul_net0_uart.dtb为单网卡+8串口的配置。
$ ls /media/qingleqq/DF15-3F7C/
$ cp u-boot_tqimx6ul_v1.0.imx zImage_tqimx6ul_v1.0 tq-imx6ul_net0_uart.dtb rootfs_tqimx6ul.ubifs
/media/qingleqq/DF15-3F7C/.
将镜像名修改为默认名称，步骤略。
$ ls /media/qingleqq/DF15-3F7C/*
tq-imx6ul.dtb rootfs.ubifs u-boot.imx zImage
/media/qingleqq/DF15-3F7C/为笔者sd 卡挂载目录，只作参考，以实际为准。
如果有不想更新的镜像，可以不复制。如：只想更新内核，则可只复制内核镜像。
烧写
将tf卡插到板子上，上电，系统会自动烧写。烧写完成后系统会自动启动。系统会将第一个分区默认成fat模式，并分别查找u-boot.imx、tq-imx6ul.dtb、zImage、rootfs.ubifs。找到文件就读取并烧写，如果文件不存在就略过，以下是自动烧写全镜像的打印。
U-Boot 2016.03-gd294d2c-dirty (Feb 24 2017 - 09:08:25 +0800) CPU: Freescale i.MX6UL rev1.1 528 MHz (running at 396 MHz) CPU: Industrial temperature grade (-40C to 105C) at 38C Reset cause: POR Board: MX6UL 14x14 EVK I2C: ready DRAM: 512 MiB NAND: 1024 MiB MMC: FSL_SDHC: 0, FSL_SDHC: 1 *** Warning - bad CRC, using default environment Display: TN92 (800x480) Video: 800x480x24 Error: no valid bmp image at 85800000 In: serial Out: serial Err: serial Net: FEC0 Normal Boot Hit any key to stop autoboot: 0 reading u-boot.imx 613376 bytes read in 67 ms (8.7 MiB/s) nand erase.part u-boot; NAND erase.part: device 0 offset 0x0, size 0x400000 Erasing at 0x3e0000 -- 100% complete. OK filesize = 95c00 nand write.e 807ffc00 0x100000 96000 NAND write: device 0 offset 0x100000, size 0x96000 614400 bytes written: OK reading logo.bmp 131638 bytes read in 28 ms (4.5 MiB/s) NAND erase.part: device 0 offset 0x600000, size 0x400000 Erasing at 0x9e0000 -- 100% complete. OK NAND write: device 0 offset 0x600000, size 0x20236 131638 bytes written: OK reading zImage 5994032 bytes read in 522 ms (11 MiB/s) NAND erase.part: device 0 offset 0xa00000, size 0xa00000 Erasing at 0x13e0000 -- 100% complete. OK NAND write: device 0 offset 0xa00000, size 0x5b7630 5994032 bytes written: OK NAND erase.part: device 0 offset 0x1400000, size 0x200000 Erasing at 0x15e0000 -- 100% complete. OK reading tq-imx6ul.dtb 35384 bytes read in 20 ms (1.7 MiB/s) NAND write: device 0 offset 0x1400000, size 0x8a38 35384 bytes written: OK reading rootfs.ubifs 86851584 bytes read in 7372 ms (11.2 MiB/s) NAND erase.part: device 0 offset 0x1600000, size 0xea00000 Skipping bad block at 0x06c40000 Skipping bad block at 0x06c80000 Erasing at 0xffe0000 -- 100% complete. OK ubi0: attaching mtd1 ubi0: scanning is finished ubi0: empty MTD device detected ubi0: attached mtd1 (name "mtd=5", size 234 MiB) ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048 ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096 ubi0: good PEBs: 1870, bad PEBs: 2, corrupted PEBs: 0 ubi0: user volume: 0, internal volumes: 1, max. volumes count: 128 ubi0: max/mean erase counter: 1/0, WL threshold: 4096, image sequence number: 0 ubi0: available PEBs: 1828, total reserved PEBs: 42, PEBs reserved for bad PEB handling: 38 No size specified -> Using max size (232112128) Creating dynamic volume rootfs of size 232112128 86851584 bytes written to volume rootfs use nandboot NAND read: device 0 offset 0xa00000, size 0xa00000 10485760 bytes read: OK NAND read: device 0 offset 0x1400000, size 0x200000 2097152 bytes read: OK Kernel image @ 0x80800000 [ 0x000000 - 0x5b7630 ] ## Flattened Device Tree blob at 83000000 Booting using the fdt blob at 0x83000000 Using Device Tree in place at 83000000, end 8300ba37 Modify /soc/aips-bus@02000000/bee@02044000:status disabled ft_system_setup for mx6 Starting kernel ... Booting Linux on physical CPU 0x0 Linux version 4.1.15-ga2a1e0e-dirty (qingleqq@z-work) (gcc version 5.3.1 20160412 (Linaro GCC 5.3-2016.05) ) #24 SMP PREEMPT Thu Feb 23 11:09:49 CST 2017 CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c53c7d CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache Machine model: Freescale i.MX6 UltraLite 14x14 EVK Board Reserved memory: created CMA memory pool at 0x8c000000, size 320 MiB Reserved memory: initialized node linux,cma, compatible id shared-dma-pool Memory policy: Data cache writealloc PERCPU: Embedded 12 pages/cpu @8bb32000 s16960 r8192 d24000 u49152 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048 Kernel command line: console=ttySAC0,115200 panel=TN92 root=ubi0:rootfs rootfstype=ubifs ubi.mtd=5 mtdparts=gpmi-nand:4m(u-boot),2m(u-boot-env),4m(logo),10m(kernel),2m(dtb),-( rootfs) rootwait rw PID hash table entries: 2048 (order: 1, 8192 bytes) Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) Memory: 178956K/524288K available (8350K kernel code, 387K rwdata, 2780K rodata, 324K init, 442K bss, 17652K reserved, 327680K cma-reserved, 0K highmem) Virtual kernel memory layout:
了解更多开发板资讯，可到天嵌科技官网www.embedsky.com |
