forked from acco/chti23
95 lines
No EOL
1.6 KiB
ArmAsm
95 lines
No EOL
1.6 KiB
ArmAsm
PRESERVE8
|
|
THUMB
|
|
|
|
INCLUDE DriverJeuLaser.inc
|
|
IMPORT Son
|
|
IMPORT LongueurSon
|
|
|
|
EXPORT callbackSon
|
|
EXPORT SortieSon
|
|
EXPORT IndiceCourrant
|
|
|
|
; ====================== zone de réservation de données, ======================================
|
|
;Section RAM (read only) :
|
|
area mesdata,data,readonly
|
|
|
|
|
|
;Section RAM (read write):
|
|
area maram,data,readwrite
|
|
|
|
SortieSon dcw 0
|
|
IndiceCourrant dcd 0
|
|
|
|
; ===============================================================================================
|
|
|
|
|
|
|
|
|
|
;Section ROM code (read only) :
|
|
area moncode,code,readonly
|
|
; écrire le code ici
|
|
|
|
|
|
;void callbackSon (void) {
|
|
; if (LongueurSon >= IndiceCourrant) {
|
|
; SortieSon = Son[IndiceCourrant];
|
|
; SortieSon += 32767;
|
|
; SortieSon = SortieSon/(65534/719);
|
|
; IndiceCourrant++;
|
|
; }
|
|
; PWM_Set_Value_TIM3_Ch3(SortieSon);
|
|
;}
|
|
EXPORT callbackSon
|
|
callbackSon proc
|
|
push {lr}
|
|
push {r4}
|
|
push {r5}
|
|
|
|
ldr r0, =Son
|
|
ldr r2, =IndiceCourrant
|
|
ldr r1, [r2]
|
|
|
|
ldr r5, =LongueurSon
|
|
ldr r5, [r5]
|
|
|
|
; if (LongueurSon >= IndiceCourrant) {
|
|
cmp r1,r5
|
|
bgt RienFaire
|
|
|
|
; SortieSon = Son[IndiceCourrant];
|
|
ldrsh r3, [r0, r1, lsl #1]
|
|
|
|
; IndiceCourrant++;
|
|
add r1, #1
|
|
str r1, [r2]
|
|
|
|
; SortieSon += 32768;
|
|
add r3, #32768
|
|
|
|
; SortieSon = SortieSon*719/65534;
|
|
mov r4, #719
|
|
mul r3, r4
|
|
asr r3, #16
|
|
|
|
ldr r0, =SortieSon
|
|
str r3, [r0] ; valeur de r3 à l'adresse dans r0 = adresse de SortieSon
|
|
; }
|
|
|
|
; PWM_Set_Value_TIM3_Ch3(SortieSon);
|
|
mov r0 , r3 ; passage de valeur de SortieSon en arg
|
|
bl PWM_Set_Value_TIM3_Ch3
|
|
|
|
RienFaire
|
|
pop {r5}
|
|
pop {r4}
|
|
pop {pc}
|
|
endp
|
|
|
|
|
|
;StartSon proc
|
|
; callbackSon();
|
|
; bl callbackSon
|
|
|
|
; endp
|
|
|
|
END
|