A Microchip SAMD11 debug controller allows consumer configuration from the FPGA and delivers several diagnostic interfaces: An entire, consumer-programmable JTAG controller effective at configuring the FPGA and communicating via JTAG with consumer designs Apollo: the firmware that runs on Cynthion's debug controller and that is accountable for configuring its FPGA https://tommyj050tkb5.blogpayz.com/profile