Article directory Related structures flash_eraseall function implementation flash_eraseall implementation flow chart File path: busybox-1.20.2/miscutils/flash_eraseall.c Related structure MTD related information structure struct mtd_info_user {<!– –> __u8 type; // MTD device type __u32 flags; // MTD device attribute flags __u32 size; //The size of the mtd device __u32 erasesize; //The erase unit size of the MTD device, […]
Tag: erase
FPGA project: flash_secter_erase
Flash designated sector erasure experiment. First issue a write command, then enter the write latch cycle and wait for 500ns, enter the write sector erase command, and then write the sector address, page address, and byte address. Sector erasure is completed. Module block diagram: Timing diagram: Code: module spi ( input wire sys_clk, input wire […]
[Basic knowledge of C/C++] Confusing functions and keywords in C++: std::find vs std::search, std::remove vs std::erase, remove vs delete
Directory title 1. Introduction 2. Comparing std::find and std::search (Comparing std::find and std::search) 2.1 std::find: Searching for a Single Element 2.2 std::search: Searching for a Subsequence (Searching for a Subsequence) 2.3 Use-cases and Example Code (Use-cases and Example Code) 3. Comparing std::remove and std::erase 3.1 std::remove: Remove elements without changing the container size (Removing Elements […]
Summary of C++ map access elements empty, size, max_size, operator[], at, insert, erase, swap, clear, emplace, emplace_hint (206)
Introduction: CSDN blog expert, focusing on Android/Linux System, share multi-mic voice solutions, audio and video, codec and other technologies, and grow with everyone! Quality Column:Audio Engineer Advanced Series[Original information is being updated continuously… ] Life motto: There are never shortcuts in life, only actions It is the only cure for fear and laziness. For more […]
Macronix MX25L25645G NOR Flash cannot be erased problem analysis
1. Description of the problem The processor uses SAM9X60, and the kernel version used is 5.10.80. When debugging Macronix MX25L25645G NOR Flash, it was found that after the flash driver was successfully loaded, when using the mtd_debug tool to erase flash, the command was executed when erasing the entire flash area. The speed was very […]
Android CameraService startup process (not completed)
Directory 1 cameraserver.rc 2 main_cameraserver.cpp 2.1 main() 3CameraService.cpp 3.1 Construction method 3.2 onFirstRef 3.3 enumerateProviders() 3.3.1 CameraProviderManager->initialize() 3.3.2 CameraProviderManager::StatusListener Reference links: Android 13 cameraserver startup process 1 cameraserver.rc First, init.rc starts the CameraServer process. // frameworks/av/camera/cameraserver/cameraserver.rc service cameraserver /system/bin/cameraserver class main user cameraserver group audio camera input drmrpc ioprio rt 4 task_profiles CameraServiceCapacity MaxPerformance rlimit […]
Form drawing event functions in MFC: OnCtlColor, OnPaint, OnNcPaint, OnDrawItem, OnEraseBkgnd, OnDraw
Article directory CWnd::OnCtlColor CWnd::OnPaint CWnd::OnNcPaint CWnd::OnDrawItem CWnd::OnEraseBkgnd CWnd::InvalidateRect CView::OnDraw Reference: https://learn.microsoft.com/ CWnd::OnCtlColor The framework calls this member function when a child control is about to be drawn. afx_msg HBRUSH OnCtlColor( CDC* pDC, CWnd* pWnd, UINT nCtlColor); Parameters pDC Contains a pointer to the display context of the child window. Probably a temporary pointer. pWnd Contains […]
[html local tool] html+JS implements a super-looking drawing board/graffiti board, with brushes, rectangles, circles, lines, texts, erasers, and undo, restore, and save functions
Foreword Hello everyone, this is Fu Hua. Today we will use pure html + js to implement a drawing board. It needs the following functions: brush tool free brush rectangle round straight line text input Brush and Eraser Resize Thickness Adjust brush color Eraser save as picture revoke Redo (anti-undo) If the above functions are […]
08_SPI-Flash sector erase experiment
08_SPI-Flash sector erase experiment 1. Experimental objectives 2. Operation Timing 2.1 Sector Erase Operation Command 2.2 Full Sector Erase Operation Timing 3. Program block diagram 3.1 Top-level block diagram 3.2 Sector Erase Module 4. Waveform diagram 5. RTL 5.1 flash_se_ctrl 5.2 spi_flash_se 6. Testbench 6.1 tb_flash_se_ctrl 6.2 tb_spi_flash_se 1. Experiment objective Write a sector erase […]
S32K flash erase exception and flash protection (FLASH_DRV_CommandSequence function exception)
Something went wrong There is an exception to erase flash, and it has been stuck in FLASH_DRV_CommandSequence and reset But there is a strange phenomenon, through DEBUG online debugging, break point, step-by-step debugging, the flash can be erased and read normally, but it can’t be erased and read normally without online debugging. If this happens, […]