I have a FRDM-k64 board. I have been looking into the I2C examples. Specifically frdmk64f_i2c_polling_b2b_transfer_slave. Is it necessary to have a specific I2C hardware board connected in order to test the software ? If so can you give more details on the test boards ? If the example project should work without any specific hardware, when I run the example it runs to about line 123 in frdmk64f_i2c_polling_b2b_transfer_slave.c and just stays in the loop, waiting I presume for g_SlaveCompletionFlag to become true. Any ideas ?