How to Set Up TFTP Server on Ubuntu (tftpd-hpa Guide)
Set up a TFTP server on Ubuntu using tftpd-hpa: learn configuration, permission fixes, ufw firewall setup, and U-Boot embedded kernel image transfers.
Lynxbee topic
Embedded C
Function Pointers in C: Syntax, Callbacks, and Real Examples
Master C function pointers: learn syntax, typedef declarations, qsort() callbacks, POSIX signal handlers, kernel vtables, and memory mechanics.
Bitwise Operators in C: Embedded Bit Manipulation Guide
Master C bitwise operators (&, |, ^, ~, <<, >>): learn bit masking, clearing flags, RGB byte extraction, and embedded GPIO register manipulation.
Floating-Point Remainder in C: Why Modulo % Fails and How to Use fmod()
Calculate floating-point division remainders in C using fmod(), fmodf(), and fmodl() from math.h. Learn why % operator fails with float and double types.
Converting Windows BMP Images to Raw 16-Bit RGB565 Binary for Embedded Displays
Write a C program in Linux to parse Windows BMP image headers, convert 24-bit BGR pixels into raw 16-bit RGB565 binary data for embedded LCD displays.