CRC Evaluation using direct memory addressing

embedded_dan73 — Fri, 19 Dec 2025 10:26:44 GMT

Hello all.

I'm working with S32K358 MCU, MBD Toolbox v1.6.0 and Matlab R2024a.

I know that Crc module isn't supported by the toolbox, so I configured the .mex file of the project in order to generate the RTD configuration suitable for my application, including Crc module, and then I wrote a Matlab function in order to manually call, as custom code, the "Crc_SetChannelCalculate" function.

This works fine and I can evaluate correctlty the CRC over a data streaming like an array.

Now what I would like to do is to evaluate the CRC on an area of memory, using directly the memory address as data input. If I write the code "manually" using S32DS IDE (outside Matlab), the code looks like this:

//--- code start

uint32 CrcResult;

uint8 *data;

data = (uint8 *)0x40A1F0; //arbitrary address chosen for starting calculation

CrcResult = Crc_SetChannelCalculate(CRC_LOGIC_CHANNEL_2, data, 16, 0, TRUE);

//in this way I calculate the CRC of 16 byte, with starting value = 0, read directly in flash starting from address 0x40A1F0

//---

Of course, before this, I initialized the logic channel CRC_LOGIC_CHANNEL_2 with the properties suitable for my application.

This code works fine but I'm not able to "translate" it on Matlab, because I didn't find a suitable way for make a direct memory addressing (and, if I'm not wrong, Matlab doesn't support this possibility).

I would please ask you if someone has an idea on how to face this matter.

Thansk in advance for your help and support.

Daniel

topic CRC Evaluation using direct memory addressing in Model-Based Design Toolbox (MBDT)

CRC Evaluation using direct memory addressing