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Reducing RAM Used for the printf Function_CC-RL

Last Updated:02/21/2018


I am using RL78 Compiler CC-RL.
I am using the printf function of a standard library function, and therefore a section is allocated in the RAM.

I would like to reduce the allocated RAM size. Is there any way to do that?


When the printf function of a standard library function is used, the allocated RAM area is used for the function and therefore cannot be reduced.

The printf_tiny function provides a simplified version of the printf series functions. This function has some functional restrictions, but secures no RAM area.
Consider using the printf_tiny function.

Refer to the following user’s manual for details of the specification of the printf_tiny function.
- Compiler CC-RL User's Manual
  7.5.6 Standard I/O functions

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