Initialization Code For Data Logging With End Address - Texas Instruments TMS320C28x Reference Manual

Example 7−2. Initialization Code for Data Logging With End Address
; Base addresses
ADMA .set
DEVT .set
; Offsets
DMA_ADDRL .set
DMA_ADDRH .set
DMA_CNTRL .set
DMA_ID .set
MASKL .set
MASKH .set
REFL .set
REFH .set
EVT_CNTRL .set
EVT_ID .set
EALLOW
MOV AR5, #DEVT
MOV AR4, #ADMA
MOV *+AR5[#EVT_CNTRL],#1
MOV *+AR4[#DMA_CNTRL],#1
NOP
NOP
NOP
CMP *+AR5[#EVT_ID],#5002h
B FAIL, NEQ
CMP *+AR4[#DMA_ID],#7001h
B FAIL, NEQ
MOV *+AR5[#MASKL],#0
MOV *+AR5[#MASKH],#0
MOV *+AR5[#REFL],#02FFh
MOV *+AR5[#REFH],#0
MOV *+AR5[#EVT_CNTRL],#
MOV *+AR4[#DMA_ADDRL],#0100h
MOV *+AR4[DMA_ADDRH],#0
MOV *+AR4[DMA_CNTRL],#3066h
EDIS
0838h
0848h
0
1
6
7
0
1
2
3
6
7
; AR5 pointing to End Address registers
; AR4 pointing to Start/Control base
; Attempt to claim End Address
; Attempt to claim Start/Control
; Value expected in ID register
; If we don't see the correct ID, FAIL
; Value expected in ID register
; If we don't see the correct ID, FAIL
; Attempt to claim End Address
; Attempt to claim End Address
; Stop data logging at address 0x02FF
; Attempt to claim End Addr
( 2 | (1<<2)
; Set buffer start address and then the count
| (1<<12) | (1<<13)
Emulation Features
Data Logging
)
7-29