Texas Instruments TMS320C3x User Manual page 726

Figure C–1. Boot-Loader Flow Chart
Serial initialize
serial global
control register
Restore strobe
values previously
saved
Start
program execution
Yes
Interrupt flag IF
Memory width: R5
Memory control word
read routine: AR0
Yes
Boot-Loader Source Code Description
Start
Initialize registers:
AR7, SP, IR0
Serial
boot?
No
Process interrupts
INT0, INT1, INT2
Process memory
width word
Read and store
strobe values
Read block size
Block
size=0?
No
Read destination
address
Read destination
strobe
Select read
routine
TMS320C32 Boot Loader Source Code
Boot source
address: AR3
Boot strobe
pointer: AR2
Boot strobe value:
R2
Handshake mode:
IOF
Block size RC
Destination
address: AR3
Destination strobe
pointer: AR4
Destination strobe
value: R4
Destination data
size: R3
Memory block read
routine: AR1
Memory width:
R5
C-3