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Hello, I have been trying to implement a SHA256 alghorithm on my board without success so far. Right now, nothing is failing, but when i enter a letter in TeraTerm to hash, i receive random characters. The UART module works on its own and the simulations give the right results and now i am stuck. I will attach my verilog code and 2 pictures with some timing analysis in the synthesis and implementation part. My question are as follows: 1. No paths are failing, but some of them have some high logic levels and Fanout. Even though the paths are failing, do i need to worry about that? Maybe add some pipeline levels? 2.The only warning i receive is the no_input/output_delay. When i run the UART module on its own, it works without constraining these 2. So my question is as follows: Do i need them? If so, where can i read about them in more detail. I have been looking for that datasheet(i think there should be something about this topic on the datasheet ), but for some reason i cannot find it. I would be very thankful if you can give me some advice. Thank you in advance! PS: I am relatively new to FPGAs and Verilog, so if you find some mistakes in different parts of the code please tell me!

Any & all help is appreciated with this thread. I am 100% new rookie to FPGA. I purchased the Digilent Zybo Z7: Zynq-7000 ARM/FPGA SoC Development Board (Zybo Z7-20 with SDSoC Voucher) My intentions are to crypto currency mine a new FPGA algo called Odocrypt created by the blockchain group Digibyte DGB. Here are a couple links to the info. https://www.dgbwiki.com/index.php?title=FPGA_mining https://www.coinfoundry.org/pool/dgb5 DigiByteCoin Github Odocrypt Mining Software https://github.com/DigiByte-Core/odo-miner It will change every 10 days. Its supposed to, to make it more ASIC resistant. I thought this may make a nice marketing tool also that is profitable & I'll gladly promote if someone can tell me how to set it up! Any input, insight or suggestions how to setup the Xilinx software for this particular FPGA to mine that Odocrypt algo on that mining pool... would be greatly appreciated! TYIA