Summer Vacation: in Ibusuki, Japan
That summer, Taki-chan returned to her hometown by herself.
7 stories, 55pages, B/W.
That summer, Taki-chan returned to her hometown by herself.
7 stories, 55pages, B/W.
Short lyrical comics hitotu: Haiku Manga : Starting in 1997. Published one book every year. "hitotu" means "one" or "a". Unlike the commercial cartoons that tend to pursue entertainment, this book pursues honest feelings of artists. All comics are chosen from the public.
The stage of this story is 400 years from now.
The world in 400 years' time is described as a eco-friendly and comfortable place to live in.
And I do hope so.
In 400 years' time Tosuka10, an artifical intelligence computer, recovers from a lost civilization of the 21th century.
Ruu and Giru meet many remains in the 21st century through Tosuka10, and they reach out to each other and grow.
This book has 170 pages, 7 stories. Black and white.
It's written in 1996-1997, and added one story in 2000.
The SigmaStar SDK is a proprietary embedded software framework designed for SigmaStar’s System-on-Chip (SoC) products, which dominate the markets for car dash cameras, smart home displays, IP cameras, and commercial signage. Built upon a Linux kernel and U-Boot bootloader, the SDK abstracts complex hardware functionalities—such as video input (VIN), video encoding (H.264/H.265), graphics rendering (QT/GFX), and display output—into a unified API layer. This paper examines the hierarchical architecture of the SigmaStar SSD20x, SSD21x, and Infinity families, focusing on the MI (MStar Innovation) API modules, the buildroot-based filesystem management, and the proprietary tuning tools. We further discuss best practices for memory management, performance optimization, and debugging within the SigmaStar ecosystem, concluding with a case study on reducing boot time in a commercial signage application. 1. Introduction
An Analysis of the SigmaStar Software Development Kit (SDK): Architecture, Integration, and Optimization for Intelligent Display and IoT Devices
[1] SigmaStar Technology. "SDK User Manual for SSD20x Series," Rev 1.4, 2022. sigmastar sdk
The SigmaStar SDK provides a comprehensive, albeit complex, environment for developing high-performance multimedia devices. Understanding the MI API hierarchy, memory zones, and buildroot configuration is essential to unlocking the full potential of these SoCs. By leveraging the provided tuning tools and adopting the optimization strategies outlined in this paper, engineers can achieve both rapid prototyping and production-grade stability. Future improvements in documentation and open-source collaboration would significantly lower the barrier to entry.
One major challenge is that the MI API is not thread-safe by default; developers must implement mutexes when calling MI functions from multiple threads. The SigmaStar SDK is a proprietary embedded software
[4] D. Bovet and M. Cesati. "Understanding the Linux Kernel," 3rd ed., O'Reilly, 2005. (For memory management context).
The SDK mandates a Linux host environment (Ubuntu 18.04/20.04). The toolchain is a custom arm-linux-gnueabihf-gcc (GCC 6.3/7.4). Building a firmware image involves: We further discuss best practices for memory management,
[3] Linux Foundation. "Buildroot – Making Embedded Linux Easy," https://buildroot.org.
[2] MStar Semiconductor. "MI API Reference Guide," MStar Confidential, 2019.
The MI API follows a handle-based, asynchronous model. Below is a typical initialization sequence for a display application:
Let me show you the life in Kaka Island.
English version was reliesed at 03.2022.
This book has 79 pages, 10 stories.
Black and white.
It's written from 2002 to 2007 added in 2022.
This was selected Future Lifestyles Multimedia Contest 2021.
A small self-sufficient area is called "Island district".
The world has consisted of these Island districts which are independent and cooperative.
These are the stories in Kaka Island in the Far East.
Let me show you some unique vehicles in Kaka Island.
English version was reliesed at 07.2022.
This book has 73 pages, 9 stories.
Black and white.
It's written from 2007 to 2011 added in 2022.
This was selected Future Lifestyles Multimedia Contest 2021.
365 pictures, 365 women, 12.2012.- 12.2013, at Osaka Japan. ink, kent paper
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