Disables all high-speed clocks and internal oscillators. Content in the SRAM and registers is preserved, dropping power consumption to the microampere range.
Uses human-readable function calls (e.g., HAL_GPIO_WritePin() ). It speeds up market readiness but introduces execution overhead and larger code footprints. the stm32f103 arm microcontroller and embedded systems work
Supports multimaster and slave modes, ideal for connecting low-speed peripherals like OLED displays and digital thermometers. Disables all high-speed clocks and internal oscillators