Hi,
I'm trying to optimize the size of my binary file by making the following changes in "mbedtls/config.h"

#define MBEDTLS_MPI_WINDOW_SIZE            1
#define MBEDTLS_MPI_MAX_SIZE            32
#define MBEDTLS_ECP_MAX_BITS            256
#define MBEDTLS_SHA256_SMALLER

Even after making the above changes I couldn't see any change in the binary size. 
https://tls.mbed.org/kb/how-to/reduce-mbedtls-memory-and-storage-footprint - This is the link I referred to follow the above-mentioned steps.
Is there anything else I can try to reduce my final binary file size (ROM size) ?


Thanks,
LIJIN T V