Implementation of XModem (Send/Receive) and YModem (Send only) used to connect from modern PC to CP/M computer with fast UART port like ZX2022 computer. Common difference to other implementations is an adjustable send UART delay in milliseconds. This delay let slow Z80 CPU receive all bytes from UART without interrupts cause old CP/M terminal software, like XTerm/XModem and QTerm do not use interrupts.
Use Lazarus 3 and Lazserial component to compile project.