AN2157 Freescale Semiconductor / Motorola, AN2157 Datasheet - Page 9

• Manufacturer Part Number: AN2157
• Description: MSC8101 Programming the MSC8101ADS Flash Memory
• Manufacturer: Freescale Semiconductor / Motorola

Appendix A flash.lcf
If the application in Appendix B runs out of internal SRAM, the following changes must be made:
• LED on and off times modified in the FlashLed function in both case statements. Currently there are
• In the main function, comment out Sinit(). This function initializes the IMMR and disables the
example wait times for using Flash memory and internal SRAM in the function.
watchdog. CodeWarrior version 1.5 has a problem with this function.
; for linking to Flash memory
.provide _CodeStart,
.provide _ROMStart,
.provide _StackStart, 0x4f000
.provide _TopOfStack, 0x7fe00
; by the C/C++ run-time.
; By default, this serves as the heap
; start address.
; The heap grows downwards.
.provide _SR_Setting, 0xe4000c
; exception mode
; interrupt level 7
; saturation on
; rounding mode: nearest even
.memory 0x20000000, 0x207fffff, "rwx" ; sync dram
.provide _sdram_start, 0x20000000
.memory 0, 0xfffff, "rwx"
.memory 0xff800000, 0xffffffff, "rwx" ; 8MB Flash memory declaration
.reserve _StackStart, _TopOfStack ; Reserve for stack space
.provide FlashBase, 0xff800000
.entry _CodeStart ; this is the value programmed in the Flash boot vector
.org _DataStart
; The following line is used if running code out of internal SRAM
; .segment .data, ".data",".ramsp_0",".default",".bss"
; Notes:
; 1.
; 2.
.org _ROMStart
.segment .intvec, ".intvec"
.segment .text,".text"
.segment .roinit, ".rom_init"
.segment .rotable, ".init_table"
. Take out the following line if using the debugger and running code
. out of internal SRAM
.segment .data,".data"
Freescale Semiconductor, Inc.
.bss is used for uninitialized data
S-record generator ignores .bss
For More Information On This Product,
Go to: www.freescale.com
0xff840000
0xff840000
; The stack grows upwards.
; Start execution at interrupt
; Sets the code start address
; Sets the ROM start address
; Sets the stack start address
; The highest address to be used
; The value to set the SR after reset:
Running LEDblinker from Internal SRAM
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