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求教一下，tx2 4G模块刷系统 tx2 4g模块刷系统，18.04的硬盘系统，官网下的最新版工具，安装os到98％就不行了，试了好几遍，换了阿里源，更新过库文件
永宏plc程序密码问题 请问一下各位大佬有不有程序密码解密经验的； 我这有一台十年前的设备，前段时间突然出现err闪烁，y0,y1常亮的问题，十多年的设备了，厂家早没了，想买个同款的plc替换，苦于没有原程序，有不有大佬有过密码解密经验的，有偿请求帮助
洗全白之后，很久没开机，现在开机这个样子了
弱弱问一句，关于树莓派运行codesys，485要怎么设置，据说要改树莓派的配置？
升级mac后arduino出现如下编译问题，急求教！ failed MSpanList_Insert 0x308000 0x13a2e0f4792 0x0 fatal error: MSpanList_Insert runtime stack: runtime.throw(0x2a950b) /usr/local/go/src/runtime/panic.go:491 +0xad fp=0x7ffeefbff4b0 sp=0x7ffeefbff480 runtime.MSpanList_Insert(0x2c7028, 0x308000) /usr/local/go/src/runtime/mheap.c:692 +0x8f fp=0x7ffeefbff4d8 sp=0x7ffeefbff4b0 MHeap_FreeSpanLocked(0x2c3c20, 0x308000, 0x100) /usr/local/go/src/runtime/mheap.c:583 +0x163 fp=0x7ffeefbff518 sp=0x7ffeefbff4d8 MHeap_Grow(0x2c3c20, 0x8, 0x0) /usr/local/go/src/runtime/mheap.c:420 +0x1a8 fp=0x7ffeefbff558 sp=0x7ffeefbff518 MHeap_AllocSpanLocked(0x2c3c20, 0x1, 0x0) /usr/local/go/src/runtime/mheap.c:298 +0x365 fp=0x7ffeefbff598 sp=0x7ffeefbff558 mheap_alloc(0x2c3c20, 0x1, 0x12, 0x0) /usr/local/go/src/runtime/mheap.c:190 +0x121 fp=0x7ffeefbff5c0 sp=0x7ffeefbff598 runtime.MHeap_Alloc(0x2c3c20, 0x1, 0x10000000012, 0x10219) /usr/local/go/src/runtime/mheap.c:240 +0x66 fp=0x7ffeefbff5f8 sp=0x7ffeefbff5c0 MCentral_Grow(0x2cb998, 0x0) /usr/local/go/src/runtime/mcentral.c:197 +0x8b fp=0x7ffeefbff660 sp=0x7ffeefbff5f8 runtime.MCentral_CacheSpan(0x2cb998, 0x0) /usr/local/go/src/runtime/mcentral.c:85 +0x167 fp=0x7ffeefbff698 sp=0x7ffeefbff660 runtime.MCache_Refill(0x304000, 0x12, 0x0) /usr/local/go/src/runtime/mcache.c:90 +0xa0 fp=0x7ffeefbff6c0 sp=0x7ffeefbff698 runtime.mcacheRefill_m() /usr/local/go/src/runtime/malloc.c:368 +0x57 fp=0x7ffeefbff6e0 sp=0x7ffeefbff6c0 runtime.onM(0x221810) /usr/local/go/src/runtime/asm_amd64.s:273 +0x9a fp=0x7ffeefbff6e8 sp=0x7ffeefbff6e0 runtime.mallocgc(0x120, 0x1bd640, 0x0, 0x0) /usr/local/go/src/runtime/malloc.go:178 +0x849 fp=0x7ffeefbff798 sp=0x7ffeefbff6e8 runtime.newobject(0x1bd640, 0x304000) /usr/local/go/src/runtime/malloc.go:353 +0x49 fp=0x7ffeefbff7c0 sp=0x7ffeefbff798 runtime.newG(0x27daa) /usr/local/go/src/runtime/proc.go:233 +0x2a fp=0x7ffeefbff7d8 sp=0x7ffeefbff7c0 allocg(0x2b65e0) /usr/local/go/src/runtime/proc.c:925 +0x1f fp=0x7ffeefbff7e8 sp=0x7ffeefbff7d8 runtime.malg(0x8000, 0x2b6680) /usr/local/go/src/runtime/proc.c:2106 +0x1f fp=0x7ffeefbff818 sp=0x7ffeefbff7e8 runtime.mpreinit(0x2b6a40) /usr/local/go/src/runtime/os_darwin.c:137 +0x27 fp=0x7ffeefbff830 sp=0x7ffeefbff818 mcommoninit(0x2b6a40) /usr/local/go/src/runtime/proc.c:201 +0xc9 fp=0x7ffeefbff858 sp=0x7ffeefbff830 runtime.schedinit() /usr/local/go/src/runtime/proc.c:138 +0x55 fp=0x7ffeefbff880 sp=0x7ffeefbff858 runtime.rt0_go(0x7ffeefbff8b0, 0x14, 0x7ffeefbff8b0, 0x0, 0x14, 0x7ffeefbffa60, 0x7ffeefbffa9d, 0x7ffeefbffaa9, 0x7ffeefbffab9, 0x7ffeefbffac3, ...) /usr/local/go/src/runtime/asm_amd64.s:95 +0x116 fp=0x7ffeefbff888 sp=0x7ffeefbff880 arduino-builder 返回 2 编译有误。
想做一个这样的东西，需要储备些什么知识，测距，轨迹跟踪还有什么
寻找利川模友，在利川有我玩航空模型或者无人机的嘛😊？
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