Because SigmaStar (a spinoff from MStar) is a B2B vendor, their official SDKs are typically restricted to hardware manufacturers under an NDA. However, substantial community knowledge and documentation exist through projects like Core Components Cross-Compiler Toolchain : Uses ARM-based compilers, typically arm-linux-gnueabihf (for 32-bit ARMv7 like Cortex-A7) or aarch64-linux-gnu (for 64-bit ARMv8). Kernel Source : Often based on older but stable Linux versions, such as , sometimes including the PREEMPT_RT patch for real-time applications. Hardware Abstraction Layer (HAL)
: Manages hardware picture splicing and output to HDMI, VGA, or LCD panels . sigmastar sdk