/challenges-projects/design-challenges/summer-of-fpga/b/blog/posts/security-hardware-accelerator-7-sha256-in-uart-port1. Brief In previous blog, SHA256 has been elastrated and acomplished in software core and hardware core. Only with independant port, can sha256 accelerator runs. There have been choice of SPI, I2C, USB or UART. Fully understand of protocle is ...en-USTelligent Community 12