How can I perform a Remote System Update on a Cyclone III or Cyclone IV device over a JTAG to Avalon MM Master Bridge? - How can I perform a Remote System Update on a Cyclone III or Cyclone IV device over a JTAG to Avalon MM Master Bridge? Description The Remote System Update IP Core for Cyclone® III or Cyclone IV devices provides an Avalon MM (AVMM) interface to read and write to the core control and status registers to perform a successful configuration update. This can be done with a compatible AVMM Master component available in Quartus® Prime software without the need for an on-chip processor. The JTAG-Avalon MM Master Bridge forms a direct interface between the user and the remote system update IP core, which allows users to perform reconfiguration via System Console over JTAG interface. The Remote Update IP Core Avalon-MM Registers that need to be configured over JTAG, while updating the configuration from a factory image to an application image are : Write to RU_WATCHDOG_TIMEOUT Address offset is 0x20 Write a 12-bit timer value Read back from this register can be done to see if the watchdog timer value is written correctly . Address offset is 0x2C Reads back the 12-bit timeout value Write to RU_WATCHDOG_ENABLE Address offset is 0x30 Write 0x1 to Enable or 0x0 to Disable the Watchdog Timer Write to RU_BOOT_ADDRESS Address offset is 0x40 Write a 32 bit start address which points to the start of the application image stored on the flash device. The FPGA shall boot from this address once reconfiguration is triggered. For example : 0x00400000 Read back from this register can be done to see if the boot address for application image is written correctly. Address offset is 0x4C Reads back the 32 bit boot address. Write to RU_RECONFIG Address offset is 0x74 Write 0x1 to trigger a reconfiguration Once a reconfiguration is triggered, the System Console loses its connection to the FPGA over JTAG. Users would need to launch a new session of System Console once the FPGA boots from the application image to re-establish a valid JTAG chain. Custom Fields values: ['novalue'] Troubleshooting FB: 481608; False ['JTAG to Avalon Master Bridge IP'] ['novalue'] novalue novalue ['Cyclone® III FPGAs', 'Cyclone® IV FPGAs'] ['novalue'] ['novalue'] ['novalue']