Simulation Data Inspector is a useful tool to view or compare the simulation results of Simulink. Compared to the Scope block, the Data Inspector is more flexible to use. However, after a period of time, the .dmr file of Data Read more…
In order to facilitate the debugging needs of C6000 DSP, I need to obtain the addresses and sizes of all variables inside the DSP. The cg_xml package from TI does not provide variable size information, so I wrote this python Read more…
When drawing a graph, we sometimes need to use colors to distinguish different curves. Many years ago, I began to use the Matlab distinguishable_colors function written by Tim Holy to determine the color of the curves used in the paper. Read more…
From the reference link below, I made this C operator table for quick reference. Operator Table Priority Category Operator Associativity 1 Unary Postfix ++ — Suffix/postfix increment and decrement, e.g., var++;. () Function call, e.g., func (param). [] Array subscripting, Read more…
The webp format is a picture format launched by Google. Compared with other conventional formats, this format has better compression efficiency. If the client’s browser supports it, our website will send the webp format to reduce the packet size. Based Read more…
Recently I discovered an undocumented feature of Simulink, i.e., plot bold line in block mask’s icon drawing commands. Limitations of the plot in icon drawing commands The plot function in the mask is a reduced plotting function. If we specify Read more…
The envelope of chords in a circle has different pattern. By changing the circle to a polygon, we can have another version of envelope.
The envelope of chords in a circle, cardioid (k=2), nephroid (k=3) and other graphs from k = 1 to 129. This page shows 128 different chords patten in total.
There’s an fixed relationship between sin(x-y), sin(x) and sin(x+y). We can define a sequence from this. Moreover, we can draw some interesting figures.
Matlab has **c2d** function to do the continuous to discrete time transformation. However, sometimes you may want to implement your own discretization method. This is what this article aims for.