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This article is about how Matlab generates.mif/.txt/.coe files. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

1. MIF file

MIF(Memory Initialization File): Memory initialization file for RAM or ROM configuration of Altera / Intel FPGA devices.

For example:

(1) In image processing, ROM is used to store pictures and font information, and image processing or VGA display font, fixed pictures, etc. are performed;

(2) In digital signal processing, ROM is used to store filter coefficients required for FIR filters and the like;

(3) In DDS signal generator, part of the implementation mode uses ROM to store a period of sampling waveform, and outputs different frequency waveforms by reading at different intervals;

MIF file

2. matlab creates mif files

in. jpg image, for example, converted to.mif file.

First, read the.jpg image and grayscale it (required for sobel algorithm processing). At this time, the image_1 array stores data between 0 and 255, which can be represented by unsigned 8-bit binary data, and then write the data according to the format.

For other data, do the same, just replace the data in image_1 with the data you want to write.

3. matlab production txt file

txt file is widely used in the joint simulation of matlab and FPGA, especially in TestBench, it is often necessary to use Matlab to make the input data to be simulated into a.txt file, and then read the txt file as input data in TestBench, and write the output data of the module into a new txt file. Matlab can be used to read the output data and perform performance analysis such as drawing and data comparison.

4. matlab read txt file

5. matlab write.coe

.coe is the same as.mif, it is a storage file, the difference is that Altera FPGA uses.mif format, Xilinx FPGA uses.coe format.

The format of.coe is as follows:

Or:

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matlab code:

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