What is the most elegant way to convert an integer variable to a string? The string should represent the value of the variable in hexadecimal format. The solution should be programmed in ST.

Hi Rainer, Some time ago I implemented a function that converts from a decimal INTEGER value to an hexadecimal STRING. You can use it if you want. Just add the library to your project from the Toolbox > Existing Library in the Logical View. Dec2HexStr.zip (2.0 KB) [2023-11-16_10-42-58]

I’ve done this before for a BYTE, but I think it can be easily adapted to an integer. Following is the source code for my function. It uses two inputs: - Value (BYTE), the value you want to convert and - pDest (UDINT), the address, where to store the string. Internally it uses an USINT variable (te…

Thanks for your answer. It looks good and it should be easy to adapt to an integer variable. I think the line brsmemset(pDest, temp + 55, 1);" should be brsmemset(pDest, temp + 65, 1);

No, 55 is right, because you add temp, which holds the value of a nibble, and is in the relevant case bigger or equal 10.

Hi Christian, you are right, I am sorry. I noticed it when trying out your example.

Convert Integer to HEX string

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maggejunior (Rainer Senft) November 16, 2023, 1:35pm 5

Hi Xabier,
I tested “Dec2HexStr”. It works fine, exactly what I am looking for.
THANKS

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Convert Integer to HEX string

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