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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...
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...
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...
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 ...
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,...
Explain the concept of a stack frame in a nutshell
... stack is composed of 1 or many several stack frames. Each stack frame corresponds to a call to a function or procedure which has not yet terminated with a return.
To use a stack frame, a thread keeps two pointers, one is called the Stack Pointer (SP), and the other is called the Frame Pointer (FP...
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 ...
CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...69B2A26 push ebp
769B2A27 mov ebp, esp
769B2A29 push 2 ; dwCoInit
769B2A2B push [ebp+8] ; pvReserved
769B2A2E call _CoInitializeEx@8 ; CoInitializeEx(x,x)
769B2A33 pop ...
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 #
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What does 'foo' really mean?
...vity:
Used very generally as a sample name for absolutely anything, esp.
programs and files (esp. scratch files).
First on the standard list of metasyntactic variables used in
syntax examples (bar, baz, qux, quux, corge, grault, garply,
waldo, fred, plugh, xyzzy, thud). [JARGON]...