CCS/TM4C123GH6PM: error #138: expression must be a modifiable lvalue

kumar Chaya

Part Number: TM4C123GH6PM

Tool/software: Code Composer Studio

I was trying to code to print the characters on putty software using USART protocol.

This is my main code snippet

I'm getting this error?

USER_DATA is the data type defined using structure in uart0.h library.

getsUart0(&info); function is codded in uart0.c. I have attached the uart0.c file for your further reference

Please do help me in getting rid of this error. I'm clueless.

Thank you

0 Bruce McKenney47378 over 4 years ago

Guru 91640 points

You can't assign to an array name ("str[]").

You could declare it as "char *str;" instead. That would compile, though I don't see the code where getsUart0() gets the storage for it.

0 kumar Chaya over 4 years ago in reply to Bruce McKenney47378

Yeah I got it. Thanks for your response

Code Composer Studio forum