离线
然后不得不短路 spi flash 的 6脚(CLK), 4脚(GND), 这样每次插入USB都能乖乖进入 fel 模式了。
试了一下 V3s 版本的 sunxi-fel, 配合失败:
debugdump@ubuntu:/tmp$ sudo sunxi-fel --list
USB device 002:004 Allwinner A10 162367d2:80808357:57564848:07427347
debugdump@ubuntu:/tmp$debugdump@ubuntu:/tmp$ sudo sunxi-fel --list
USB device 002:004 Allwinner A10 162367d2:80808357:57564848:07427347
debugdump@ubuntu:/tmp$ sudo sunxi-fel -p spiflash-info
usb_bulk_send() ERROR -7: Operation timed out
离线
离线
离线
晕哥上当了, 说好的a20变a10
离线
我猜是camdriod,我自己裁剪的linux内核,大致上6秒就启动到命令行了
离线
Compiled Feb 25 2015 10:24:24
DLL version V4.96l, compiled Feb 25 2015 10:24:11
Firmware: J-Link V9 compiled Aug 23 2018 09:45:44
Hardware: V9.20
S/N: -1
VTarget = 3.316V
Info: TotalIRLen = 4, IRPrint = 0x01
Info: ARM AP[0]: 0x44770001, AHB-AP
Info: ARM AP[1]: 0x24770002, APB-AP
Info: ROMTbl 0 [0]: 00008003, CID: B105900D, PID:04-206BBC08 Cortex-A8
Info: Found Cortex-A8 r3p2
Info: 6 code breakpoints, 2 data breakpoints
Info: Debug architecture ARMv7.0
Info: Data endian: little
Info: Main ID register: 0x413FC082
Info: I-Cache L1: 32 KB, 128 Sets, 64 Bytes/Line, 4-Way
Info: D-Cache L1: 32 KB, 128 Sets, 64 Bytes/Line, 4-Way
Info: Unified-Cache L2: 256 KB, 512 Sets, 64 Bytes/Line, 8-Way
Info: System control register:
Info: Instruction endian: little
Info: Level-1 instruction cache enabled
Info: Level-1 data cache enabled
Info: MMU enabled
Info: Branch prediction enabled
Found 1 JTAG device, Total IRLen = 4:
#0 Id: 0x4BA00477, IRLen: 04, IRPrint: 0x1, CoreSight JTAG-DP (ARM)
Cortex-A8 identified.
Target interface speed: 100 kHz
J-Link>
离线
晕哥 方便提供下usb座子的接口定义么,我也有这么一个行车记录仪,想折腾下玩玩 我的是A20的 谢谢
离线