From OptiWiki
The handheld terminal uses three kinds of memory, internal RAM in the microprocessor, external RAM in RAM ICs on the terminal's printed circuit board, and flash ROM in ICs on the printed circuit board.
The internal RAM is used for some operating system variables and for the stack. The stack size cannot be increased. Dynamic variables of the operating system and of the user application are placed on the stack.
The external RAM has a section used for storing static variables of the operating system and a section used for storing static variables of the user application.
The heap uses the rest of the external RAM. The heap is used by malloc(), far_malloc() and by the file system.
Finally, the flash ROM is where the program code resides. The flash ROM is divided into two parts, one part where the operating system code is, the other part where the user application code is.
The following tables summarize this information and also show the memory map of the various handheld terminals.
The information provided herein is for general information and may assist in debugging, but is not essential to write an application.
Choose one of the terminals below to view its memory map:
Memory map of the OPH1004 and H13
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | 20000000 | 2000FFFF | 64kB | stack and data for operating system
|
| Flash ROM | 60000000 | 600FFFFF | 1 MB | operating system program code
|
| Flash ROM | 60100000 | 603EFFFF | 2.9 MB | user application program code
|
| Flash ROM | 603F0000 | 603FFFFF | 64 kB | terminal configuration block
|
| External RAM | 62000000 | 6201FFFF | 128 kB | (static) Application data
|
| External RAM | 6201FFFF | 62FFFFFF | 15.8 MB | heap and file system
|
Memory map of the OPH1003
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | 00000000 | 0000FFFF | 64kB | stack and data for operating system
|
| flash ROM | 1C000000 | 1C07FFFF | 512 kB | operating system program code
|
| flash ROM | 1C080000 | 1C1EFFFF | 1.4 MB | user application program code
|
| External RAM | 04000000 | 04017FFF | 96 kB | (static) Application data
|
| External RAM | 04018000 | 0401FFFF | 32 kB | Stack area
|
| External RAM | 04020000 | 0402FFFF | 64 kB | (static) Operating system data
|
| External RAM | 04030000 | 041FFFFF | 1.8 MB | heap and file system
|
Memory map of the PHL1700 1 MB
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | | | > 1.7 kB | stack for operating system and user application
|
| flash ROM | 010000 | 02FFFF | 128 kB | operating system program code
|
| flash ROM | 030000 | 04FFFF | 128 kB | user application program code
|
| External RAM | 100000 | 102FFF | 12 kB | (static) operating system data
|
| External RAM | 103000 | 11BFFF | 100 kB | (static) application data
|
| External RAM | 11C000 | 1FFFFF | 912 kB | heap and file system
|
Memory map of the PHL1700 2 MB
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | | | > 1.7 kB | stack for operating system and user application
|
| flash ROM | 010000 | 02FFFF | 128 kB | operating system program code
|
| flash ROM | 030000 | 04FFFF | 128 kB | user application program code
|
| External RAM | 800000 | 803FFF | 12 kB | (static) operating system data
|
| External RAM | 804000 | 81BFFF | 100 kB | (static) application data
|
| External RAM | 81C000 | 9FFFFF | 8112 kB | heap and file system
|
Memory map of the PHL1300 and PHL2700
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | | | > 1.7 kB | stack for operating system and user application
|
| flash ROM | 200000 | 23FFFF | 256 kB | operating system program code
|
| flash ROM | 240000 | 27FFFF | 256 kB | user application program code
|
| External RAM | 800000 | 803FFF | 12 kB | (static) operating system data
|
| External RAM | 804000 | 81CFFF | 100 kB | (static) application data
|
| External RAM | 81D000 | FFFFFF | 8112 kB | heap and file system
|
Memory map of the DWT7133
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | | | > 1.7 kB | stack for operating system and user application
|
| flash ROM | 200000 | 20FFFF | 64 kB | operating system program code
|
| flash ROM | 210000 | 27FFFF | 448 kB | user application program code
|
| External RAM | 140000 | 1427FF | 10 kB | (static) operating system data
|
| External RAM | 142800 | 1447FF | 8 kB | (static) application data
|
| External RAM | 144800 | 15FFFF | 110 kB | heap and file system
|
Memory map of the OPL97xx
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | 1000 | 1FFFF | 4 kB | stack for operating system and user application
|
| flash ROM | C00000 | C1FFFF | 128 kB | operating system program code
|
| flash ROM | C20000 | C3FFFF | 128 kB | user application program code
|
| External RAM | 80000 | 814FF | 5 kB | (static) operating system data
|
| External RAM | 81500 | 87FFF | 27 kB | (static) application data
|
| External RAM | 88000 | 9FFFF | 96 kB | heap and file system (128K version)
|
| | | FFFFF | 480 kB | heap and file system (512K version)
|
| | | 17FFFF | 992 kB | heap and file system ( 1Mb version)
|
Memory map of the DCL153x
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | 1000 | 1FFFF | 4 kB | stack for operating system and user application
|
| flash ROM | C00000 | C1FFFF | 128 kB | operating system program code
|
| flash ROM | C20000 | C3FFFF | 128 kB | user application program code
|
| External RAM | 80000 | 814FF | 5 kB | (static) operating system data
|
| External RAM | 81500 | 87FFF | 27 kB | (static) application data
|
| External RAM | 88000 | FFFFF | 480 kB | heap and file system (512K version)
|
Memory map of the OPN2002
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | 20000000 | 2000FFFF | 64 kB | stack and data for bootloader and Operating System
|
| Internal flash ROM | 40000000 | 4000FFFF | 64kB | bootloader program code
|
| Internal flash ROM | 40010000 | 4003FFFF | 192kB | Application program code
|
| Internal flash ROM | 400C0000 | 400C3FFF | 16kB | storage of non-volatile OS settings
|
| Flash ROM | 60000000 | 6005FFFF | 374 kB | Operating System program code
|
| Flash ROM | 60060000 | 600FFFFF | 640 kB | User application program code
|
| External RAM | 62000000 | 62003FFF | 16 kB | Application data
|
| External RAM | 62004000 | 6200FFFF | 48 kB | Heap (non-filesystem)
|
| External RAM | 62010000 | 620FFFFF | 960 kB | Operating System data and filesystem
|
Memory map of the OPN2003
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | 20000000 | 2000FFFF | 64 kB | stack and data for bootloader and Operating System
|
| Internal flash ROM | 40000000 | 4000FFFF | 64kB | bootloader program code
|
| Internal flash ROM | 40010000 | 4003FFFF | 192kB | Application program code
|
| Internal flash ROM | 400C0000 | 400C3FFF | 16kB | storage of non-volatile OS settings
|
| Flash ROM | 60000000 | 6003FFFF | 256 kB | Operating System program code
|
| Flash ROM | 60040000 | 6007FFFF | 256 kB | User application program code
|
| External RAM | 62000000 | 62003FFF | 16 kB | Application data
|
| External RAM | 62004000 | 6200FFFF | 48 kB | Heap (non-filesystem)
|
| External RAM | 62010000 | 6203FFFF | 192 kB | Operating System data and filesystem
|
Memory map of the PX25
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | 20000000 | 2000FFFF | 64 kB | stack and data for bootloader and Operating System
|
| Internal flash ROM | 40000000 | 4000FFFF | 64kB | bootloader program code
|
| Flash ROM | 60000000 | 6007FFFF | 512 kB | Operating System program code
|
| Flash ROM | 60080000 | 603EFFFF | ~3.5 MB | User application program code
|
| Flash ROM | 603F0000 | 603FFFFF | 64 kB | storage of non-volatile OS settings
|
| External RAM | 62000000 | 6201FFFF | 128 kB | Application data
|
| External RAM | 62020000 | 621FFFFF | ~1.9 MB | Heap and filesystem
|
Memory map of the PX30
| Memory map | Start address | End address | Size | Used for
|
| Internal RAM | 20000000 | 2000FFFF | 64 kB | stack and data for bootloader and Operating System
|
| Internal flash ROM | 40000000 | 4000FFFF | 64kB | bootloader program code
|
| Flash ROM | 60000000 | 6007FFFF | 512 kB | Operating System program code
|
| Flash ROM | 60080000 | 603EFFFF | ~3.5 MB | User application program code
|
| Flash ROM | 603F0000 | 603FFFFF | 64 kB | storage of non-volatile OS settings
|
| External RAM | 62000000 | 6200FFFF | 64 kB | Application data
|
| External RAM | 62010000 | 6203FFFF | 192 kB | Heap and filesystem
|
