******************************************************************* 基于TMS320C5409中低速数据采集系统：AD/DA联合调试程序代码 硬件组成： DSP芯片：TMS320C5409 AD转换器：TLV1571 DA转换器：TLVTLC7528 Flash:SST29LE010 ******************************************************************* .mmregs
.def jump
.def start
k_sample_num .set 256
out_data .usect "out_vars",k_sample_num
in_data .usect "in_vars",1
d_cr0_send .usect "cr_send",1
d_cr1_send .usect "cr_send",1
d_temp .usect "temp",1
k_cr0_send .set 0080h
k_cr1_send .set 0100h k_iptr .set 000111000b<<07
k_temp .set 1111111b
d_pmst .usect "pmst",1 .sect "prog"
start:
ldm pmst,a
and #k_temp,a
or #k_iptr,a
stl a,ar2
mvdm ar2,pmst
stm #0001h,imr
nop
nop
stm #0002h,ifr
nop
rsbx intm
nop
stm #d_temp,ar2
stm #d_cr0_send,ar1
st #k_cr0_send,*ar1+
st #k_cr1_send,*ar1
stm #d_cr0_send,ar1
ld #out_data,ar5
portr 0fffeh,*ar2
portw *ar1+,07fffh
nop
nop
nop
nop
nop
portw *ar1,07fffh
nop
nop
nop
nop
portr 0ffffh,*ar2
nop
nop
wait: nop
nop
nop
b wait
jump: rsbx xf
nop
nop
nop
portr 07fffh,*ar5
nop
nop
nop
ssbx xf
nop
nop
nop
portr 0fffeh,*ar2
nop
nop
nop
portw *ar5,0bfffh
nop
nop
nop
rete
|
