DSP56309EVM Freescale Semiconductor, DSP56309EVM Datasheet - Page 10

• Manufacturer Part Number: DSP56309EVM
• Description: KIT EVALUATION FOR XC56309
• Manufacturer: Freescale Semiconductor
• Type: DSPr

Specifications of DSP56309EVM

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Description/function: Audio DSPs
• Product: Audio Modules
• For Use With/related Products: DSP56309
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Flash Memory Programming Code Description
main_flash
_cmpsec
;----------------------------------------------------------------------------
; write the bootloader code into the FLASH
;----------------------------------------------------------------------------
; write the user code into the FLASH
_wrsec
;----------------------------------------------------------------------------
; Bootloader code
; The following code moves the user code from the FLASH to P:RAM.
; The users code starts in the 2nd sector of the FLASH at x:$040080
BOOT
bootgo
10
org
endif
if (DEVICE==56321)
org
endif
move
move
if (DEVICE==56321)
movep
movep
else
movep
endif
movep
movep
move
clr
inc
sub
bgt
move
move
move
move
move
jsr
move
move
move
dor
bsr
nop
dc
dc
movep
movep
p:$7F00
p:$7F00
#$100,r0
#$100,r1
#$000008,x:M1_PCTL_321
#$000005,x:M1_DSCR_321
#$040004,x:M1_PCTL
#AAR1V,x:M1_AAR1
#BCRV,x:M1_BCR
#>42,x0
b
b
x0,a
_cmpsec
b0,p:NUM_SEC
r0,p:CODE_START
r1,p:CODE_SIZE
#BOOT,r0
#$040000,r2
WR_FLASH
#$040080,r2
p:CODE_START,r0
p:NUM_SEC,r3
r3,_wrsec
<WR_FLASH
nop
debug
nop
BOOT_END-BOOT
bootgo
#AAR1V,x:M1_AAR1
#BCRV,x:M1_BCR
Using Symphony™ Studio with the DSP563xxEVM, Rev. 0
r1,a
; put flash code high in memory for DSP56311
; put flash code high in memory for DSP56321
; can go in low memory
; first word of user code at p:$100
; user code is 0x100 words long
; DSP56321 PLL enabled
; DSP56321 PLL = 5x19.6608MHz = ~100MHz
; PLL =(5/(1*1)) x 19.6608MHz = ~100MHz
; maps FLASH from x:$040000-x:$05ffff
; 21 wait states in AAR1 domain
; calculate number of flash sectors
; for user code
; save number of sectors
; save code start for user code
; save code size for user code
; starting location of data to write
; starting location of flash memory
; jump to flash write routine
; user code begins at flash address $80
; where to get the user code
; the number of sectors to write
; WR_FLASH loads 42 words each time
; program end
; storage for size of boot
; storage for address of boot
; maps FLASH from p:$040000-$05ffff
; 31 wait states in AAR1 domain
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