Remote Update (reconfiguration)

Altera_Forum · ‎01-22-2015

Hi.

I use remote update core in my project (5CEFA9, Q14.0). Remote update is controlled by Nios II.

I have two firmware in my configuration device (factory and application).

Factory configuration is loaded at power on and if everything is ok it starts application configuration.

If application is wrong factory remains active.

Configurations have RECONFIG command for user friendly working. Algorithm for this command is

# if __REMOTE_SYSTEM_UPDATE_CONFIGURATION_MODE == CONFIG_MODE_FACTORY
    rsu_controller_wr_config_mode((void *)RSU_CONTROLLER_BASE, CONFIG_MODE_APPLICATION);
    rsu_controller_wr_wdt_timeout((void *)RSU_CONTROLLER_BASE, RSU_WDT_TIMEOUT_VALUE);
    rsu_controller_write_param((void *)RSU_CONTROLLER_BASE, PARAM_WDT_ENABLE, 1);
    rsu_controller_write_param((void *)RSU_CONTROLLER_BASE, PARAM_PAGE_SELECT, APPLICATION_PAGE_START_ADDRESS);
    rsu_controller_reconfig((void *)RSU_CONTROLLER_BASE);# elif __REMOTE_SYSTEM_UPDATE_CONFIGURATION_MODE == CONFIG_MODE_APPLICATION
    rsu_controller_reconfig((void *)RSU_CONTROLLER_BASE);# endif

When application configuration is loaded by factory configuration (after power on), this command works correctly.

FPGA restarts by this command.

1)Erroneous situation.

Application configuration is loaded and works. Wrong application configuration is send by remote host and written into configuration flash. I send RECONFIG command but FPGA doesn't restart.

But in this case FPGA must go and stay in factory configuration. At power on configuration is loaded correctly.

2)Erroneous situation.

Application configuration in configuration device is wrong. FPGA stays in factory mode.

Host sends correct application configuration. Factory is loaded and correct application is in the configuration device. I send RECONFIG command but FPGA doesn't restart.

But in this case FPGA must go and stay in application configuration. At power on configuration is loaded correctly.

Best regards,

Andrei.

Altera_Forum · ‎01-23-2015

I find that RECONFIG command doesn't work (FPGA doesn't restart) only after epcq-device writing (if I load new programm into flash-memory). I use EPCS/EPCQx1 flash-controller in my design.