EEEngineer

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自分用メモ。ちゃんと動くようになったら、サンプルをまとめたいと思います。 高エネルギー実験用のFlashADC FPGAボードのかなり大規模なVHDLコードの開発をしているのですが、FT2232D経由のシリアルデバッグを簡単化するために、CQPIC (PIC16F84のVHDL実装)をソフトコアCPUとして用いてソフトウエア制御しようと思っています。 まずは練習として、MPLAB Xで簡単なmain関数をC言語で記述し、コンパイルして生成されるHEXファイルを用いてXilinx ISEで動作シミュレーションするところまでは動きました。 外部IOの数が限られているので、今後、RAMをdual portにして特定領域にVHDL IPコア側からデータを書き込んで、PICに処理させるということをしてみたいと思います。そのために、 XC8 C Compiler User Guide の§4.8.49 –RAM: Adjust RAM Rangesに書かれているオプション指定を勉強する必要がありそう。 http://ytkyk.info/blog/2014/07/27/%E3%80%90pic%E3%80%91xc8%E3%81%A7%E4%BD%BF%E7%94%A8%E3%81%99%E3%82%8Bram%E9%A0%98%E5%9F%9F%E3%82%92%E5%88%B6%E9%99%90%E3%81%99%E3%82%8B/

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http://users.ece.utexas.edu/~bevans/ Mail comments about this page to bevans@ece.utexas.edu .    Contemporary Linear Systems Using Matlab 4.0 (The Pws Bookware Companion Series) (ペーパーバック) Robert D. Strum (著), Donald E. Kirk (著)  https://www.amazon.co.jp/gp/offer-listing/0534947107/ref=sr_1_1_olp?ie=UTF8&qid=1543380339&sr=8-1&keywords=Contemporary+Linear+Systems+Using+MATLAB https://www.amazon.co.jp/gp/offer-listing/0534371728/ref=sr_1_1_olp?ie=UTF8&qid=1543380339&sr=8-1&keywords=Contemporary+Linear+Systems+Using+MATLAB  http://users.ece.utexas.edu/~bevans/projects/symbolic/companion.html Brian L. Evans , Steve X. Gu , Edward A. Lee , and Philip Chen, Mathematica Notebooks to Accompany Contemporary Linear Systems , PWS Publishing Company , ISBN 0-534-93509-5 (PC) and 0-534-93507-9 (Mac), 1995.   http://users.ece.utexas.edu/~bevans/proj...

http://www.mogami.com/e/cad/spice-tline.html Transmission Line (Cable) SPICE Model Characteristic Impedance (Ohm) Velocity ratio (0.66 for PE insulation) Attenuation constant at below frequency (dB/m) frequency defining the above attenuation (MHz) highest frequency of transmission signal spectrum (MHz) length of the cable (m) Model accuracy Model type The circuit simulator SPICE has built-in Lossless Transmission Lines (T), Lossy Transmission Lines (O) and Uniform Distributed RC Lines (U) Model. However both T and U model does not cosider frequency-dependent conductor resistance. So it is not possible to calculate the transmossion characteristic of the long cable. This form generates adequate SPICE model for real taransmission line of specfied attenuation and length. The velocity raio is the ratio of the phase velocity of the electromagnetic wave propergating througu the cable to the speed of light in vacuum. This value is determined by the dielectric constan...

http://tesla.rcub.bg.ac.rs/~tosicde/afdhome.htm Advanced Filter Design for Signal Processing using MATLAB and Mathematica authored by Miroslav D. Lutovac , Dejan V. Tosic , and Brian L. Evans Contents Foreword Download software in MATLAB (zip compressed M-files): Advanced Filter Design afdesign.zip 43 Kb Gallery of Advanced Filter Design Design Space afdspace.zip 21 Kb Gallery of Design Space Album of Analog Filter Realizations afalbum.zip 44 Kb Gallery of Analog Filter Realizations Album of SC Filter Realizations scalbum.zip 22 Kb Gallery of SC Filter Realizations View most typical screens at AFD gallery . See also: Asilomar'97 conference paper on Advanced Filter Design . (zip compressed postscript/pdf file 156 Kb)