TMS320F28379D: Creating ASCII strings with CCS

Ed Sanders

Greetings,

I am trying to create ASCII strings in our code. But when I use a string construct such as putting the string within single quotes, the result is a Unicode string with one character per word instead of two characters per word. The only way I have found to do this is to define it as an array of words with each word containing two characters. Those characters must be entered by hand using their hex value. Is there a better way to enter ASCII strings?

Thank you,

over 4 years ago

0 Chester Gillon over 4 years ago

Guru 92251 points

I don't think the compiler is actually encoding a Unicode string, but rather that on a C2000 that the size of char is 16-bits.

Found the old thread string allocation in bytes instead of words which notes that the assembler has the .pstring directive, where the data is packed so that each word contains two 8-bit bytes.

Can you clarify why you need to have two characters per word?

Is it to save memory, or because you are interfacing to something else which expects strings with 8-bit chars?

0 Ashwini Athalye over 4 years ago

TI__Expert 7715 points

Hi Ed,

Chester has provided the correct input. C28 is 16-bit and hence your observation.

Thanks,
Ashwini

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TMS320F28379D: Creating ASCII strings with CCS