大约有 226 项符合查询结果(耗时:0.0086秒) [XML]

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Is errno thread-safe?

...0: 55 push ebp 1: 89 e5 mov ebp,esp 3: 83 e4 f0 and esp,0xfffffff0 6: e8 fc ff ff ff call 7 <main+0x7> ; get address of errno in EAX b: c7 00 00 00 00 00 mov DWORD PTR [eax],0x0 ; store 0 in errno 11: b8 00...
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HTML-parser on Node.js [closed]

... processing HTML without overhead of creating DOM. – esp Apr 20 '13 at 18:19 @esp Thanks, Before I thought it was non-...
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App Inventor 2 IoT 参考文档 · App Inventor 2 中文网

...题:经典蓝牙(SPP),低功耗蓝牙(BLE),WIFI,物联网,MQTT,ESP32,Ardruino等相关硬件控制方法。 【BLE中文文档】App Inventor 2 低功耗蓝牙 BlueToothLE 拓展 【科普】低功耗蓝牙(BLE) 和 经典蓝牙(SPP) 的区别 【BLE通用教程】App Inventor ...
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BLE通信数据不能超过20字节? - 创客硬件开发 - 清泛IT社区,为创新赋能!

...没问题,用AI2就截断了,只有20字符。 答复: 1-在 ESP32 代码中,我放置了这一行:BLEDevice::setMTU(192); 2- 在应用程序中,我将调用 Request MTU 放在 .Connected 块上,请求相同的 192 字节; 就我而言,当我必须发送< 23字节的...
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How do function pointers in C work?

...ring function is called in order to set up the function pointers to their respective functions: String newString() { String self = (String)malloc(sizeof(struct String_Struct)); self->get = &getString; self->set = &setString; self->length = &lengthString; s...
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网

...者开发动机 对于一个项目,应该开发一个与 ESP8266(项目)通信的 Android 应用程序。为了轻松开发应用程序,选择了 MIT App Inventor 2。 项目中可用的 ESP8266 设备的 IP 地址不应固定。应用程序本身应该确定哪些设备当前...
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How to recognize USB devices in Virtualbox running on a Linux host? [closed]

... I had a similar problem trying to connect my ESP8266 and ESP32 to a VirtualBox, this worked for me, thanks all. 1) sudo adduser $USER vboxusers 2) VirtualBox 6.1.6 Oracle VM ...
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How can I see the assembly code for a C++ program?

...bp) #, readme movl -16(%ebp), %eax # pid, pid movl %eax, 4(%esp) # pid, movl $.LC0, (%esp) #, call printf # share | improve this answer | f...
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深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

... 中断(可屏蔽中断)。它的逻辑 C 描述为: *(--esp) = eflags; /* push eflags */ if (gate_descriptor.type == INTERRUPT_GATE) eflags.IF = 0; /* clear eflags.IF */ interrupt handler 使用 iret 指令返...
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What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an

...ons of the i386 System V ABI (used on Linux) require 16-byte alignment of %esp before a call, like the x86-64 System V ABI has always required. Callees are allowed to assume that and use SSE 16-byte loads/stores that fault on unaligned. But historically, Linux only required 4-byte stack alignment,...