Remote ISP On PSTN

This thesis provides a way of remote in-system-programming on PSTN. Three parts are included here. First, how to complete the communication between Personal Computer and single-chip-processor on PSTN. Second, how to transfer isp file effectively. Last, how to program the PLD device by the use of Single-Chip-Processor. This thesis gives the detailed scheme of the system hardware and software, it also presents its own file tansfer protocol. Some research on data check has also been done.