ABB PCD244A101 3BHE042816R0101 controller

The DRAMINIT command will only have an effect if called after power up for the first time. It fills the complete DRAM with 0 if dynamic RAM with parity is used on the board. This forces the parity bits to be correct and prevents parity errors when reading from memory locations that have not been written previously

This region must exactly match the page boundaries of the flash devices. Example: If the SYS_FLASH bank consists of four 28F008 (1 M * 8 bit) devices in parallel with a page size of 64 KByte each, the minimum size of one erasable region is 256 KByte

The LO command allows to load S-records 

from the console port into memory and to verify the memory contents. The optional parameter host commands allows to specify a list of commands that will be sent to the host to initiate the data transfer, e.g. cat testfile. Format 1 of the command is a standard download. Data will be loaded to the absolute addresses as specified by the S-records. Format 2 contains a parameter offset that specifies the value that is added to the absolute addresses of the S-records. This allows to modify the storage address while downloading.

SETUP – Change Initialization Values

The SETUP command is used to change SRAM parameters. SETUP F and SETUP allow to modify the initialization values of the FGA-002 as described in the FGA-002 User’s Manual. SETUP S allows to set up additional system and application values which are also stored in the batterybuffered SRAM. These values can be read by an application software via the utility interface. For further information, please see section 10.3 “FGA Boot Utility Functions” on page 189. After modifying any entries, the INIT command must be executed to recalculate the SRAM checksum and to validate the new values.

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