Hello every one, We have designed a board which contains an ALTERA fpga and an EPROM(EPC2LC20).The design is done with respect to some existing reference schematics.We have populated our PCB so as to get the power to all the components and then we have placed the components making up the JTAG circuitary along with the FPGA and EPROM. ,Altera's Byte blaster is being used which is working fine. have checked all the circuitary which seems to be alright but we keep getting the error"Unable to access the JTAG chain".We have also tried the steps in the ALTERAs trouble shooters. Do we need to proceed in a different way while programming the chip/EPROM for the first time.And also what is the passive serial mode in the Quartus tool for programming. Any help would be highly appreciated.Thanks in advance.
- posted
16 years ago