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发表于 2013-12-29 21:39:34
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我是用57600的波特率连上TTL正常的,但启动时一定要断开GND,否则无信号。
问题是,开机后速度非常快,根本无法让我选择1-4,具体显示如下,请问有什么办法中断吗?
U-Boot 1.1.3 (Jun 14 2012 - 07:15:37)
SoC:Ralink RT335x
Memory Testing.65536K OK.
DRAM: 64 MB
relocate_code Pointer at: 83770000
spi_wait_nsec: 3c
spi device id: c2 20 16 c2 20 (2016c220)
Flash:MX25L3205D Size:4MB(64K*64blocks)
raspi_read: from:30000 len:10000
.*** Warning - bad CRC, using default environment
______________________________________________________
| ____ ____ |
| | _ \ _ __ ___ __ _ _ __ ___ | __ ) _____ __ |
| | | | | '__/ _ \/ _` | '_ ` _ \| _ \ / _ \ \/ / |
| | |_| | | | __/ (_| | | | | | | |_) | (_) > < |
| |____/|_| \___|\__,_|_| |_| |_|____/ \___/_/\_\ |
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| http://www.openwrt.org.cn |
| Board:Zyxel WAP120NF |
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| lintel<linte.huang@gmail.com> |
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ASIC 3352_MP (Port5<->None)
DRAM_CONF_FROM: Boot-Strapping
DRAM: DDR2 64 MByte 16 bits
Flash component: SPI Flash
Build Date:Jun 14 2012 Time:07:15:37
icache: sets:256, ways:4, linesz:32 ,total:32768
dcache: sets:128, ways:4, linesz:32 ,total:16384
##### The CPU freq = 400 MHZ ####
estimate memory size =64 Mbytes
GPIO Init:
UARTF_SHARE_MODE:GPIO
GPIO_MODE_REG status:0x40039c
Please choose the operation:
1: Load system code to SDRAM via TFTP.
2: Load system code then write to Flash via TFTP.
3: Boot system code via Flash (default).
4: Entr boot command line interface.
7: Load Boot Loader code then write to Flash via Serial.
9: Load Boot Loader code then write to Flash via TFTP.
You choosed 3
0
3: System Boot system code via Flash.
eth_register
Eth0 (10/100-M)
enetvar=ethaddr,Eth addr:00:0C:43:09:26:BB
eth_current->name = Eth0 (10/100-M)
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