christophe vermaelen
/
MP3_Grove
V1 MP3 en liaison série
Revision 0:8dd35bae21bb, committed 2022-05-14
- Comitter:
- vermaelen
- Date:
- Sat May 14 07:45:22 2022 +0000
- Commit message:
- V1
Changed in this revision
diff -r 000000000000 -r 8dd35bae21bb main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sat May 14 07:45:22 2022 +0000 @@ -0,0 +1,163 @@ +#include "mbed.h" +#include "mp3.h" +//Serial mp3(PTE22,PTE23); +Serial mp3(D14,D15); +DigitalOut myled(LED1); +int choix; +int volume=16; + +int main() +{ + while(1) { + printf("1-play/pause 2-stop 3-next 4-previous\n\r"); + printf("faites votre choix :"); + scanf("%d",&choix); + printf("%d\n\n\n\r",choix); + switch(choix) { + case 1: + playpause(); + break; + case 2: + stop(); + break; + case 3: + next(); + break; + case 4: + previous(); + break; + case 9: + up(); + break; + case 6: + down(); + break; + case 5: + number(5); + break; + case 7: + number(7); + break; + } + myled.write(!myled.read()); + + } +} + +void playpause() +{ + mp3.putc(0x7E); + wait_ms(5); + mp3.putc(0x03); + wait_ms(5); + mp3.putc(0xAA); + wait_ms(5); + mp3.putc(0xAD); + wait_ms(5); + mp3.putc(0xEF); + wait_ms(5); +} + +void stop() +{ + mp3.putc(0x7E); + wait_ms(5); + mp3.putc(0x03); + wait_ms(5); + mp3.putc(0xAB); + wait_ms(5); + mp3.putc(0xAE); + wait_ms(5); + mp3.putc(0xEF); + wait_ms(5); +} + +void next() +{ + mp3.putc(0x7E); + wait_ms(5); + mp3.putc(0x03); + wait_ms(5); + mp3.putc(0xAC); + wait_ms(5); + mp3.putc(0xAF); + wait_ms(5); + mp3.putc(0xEF); + wait_ms(5); +} + +void previous() +{ + mp3.putc(0x7E); + wait_ms(5); + mp3.putc(0x03); + wait_ms(5); + mp3.putc(0xAD); + wait_ms(5); + mp3.putc(0xB0); + wait_ms(5); + mp3.putc(0xEF); + wait_ms(5); +} +void up() +{ + int sum; + volume=volume+1; + if(volume>31)volume=31; + sum=178+volume; + printf("volume=%x sum=%x\n\r",(char)volume,(char)sum); + mp3.putc(0x7E); + wait_ms(5); + mp3.putc(0x04); + wait_ms(5); + mp3.putc(0xAE); + wait_ms(5); + mp3.putc((char)volume); + wait_ms(5); + mp3.putc((char)sum); + wait_ms(5); + mp3.putc(0xEF); + wait_ms(5); +} +void down() +{ + int sum; + volume=volume-1; + + if(volume<0)volume=0; + + sum=volume+178; + printf("volume=%x sum=%x\n\r",(char)volume,(char)sum); + mp3.putc(0x7E); + wait_ms(5); + mp3.putc(0x04); + wait_ms(5); + mp3.putc(0xAE); + wait_ms(5); + mp3.putc((char)volume); + wait_ms(5); + mp3.putc((char)sum); + wait_ms(5); + mp3.putc(0xEF); + wait_ms(5); +} + +void number(int nb) +{ + int sum=nb+5+0+0xA2; + printf("Ok, jouons la piste %d\n\r",nb); + mp3.putc(0x7E); + wait_ms(5); + mp3.putc(0x05); + wait_ms(5); + mp3.putc(0xA2); + wait_ms(5); + mp3.putc(0x00); + wait_ms(5); + mp3.putc((char)nb); + wait_ms(5); + mp3.putc((char)sum); + wait_ms(5); + mp3.putc(0xEF); + wait_ms(5); +} \ No newline at end of file
diff -r 000000000000 -r 8dd35bae21bb mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat May 14 07:45:22 2022 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file
diff -r 000000000000 -r 8dd35bae21bb mp3.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mp3.h Sat May 14 07:45:22 2022 +0000 @@ -0,0 +1,7 @@ +void playpause(); +void stop(); +void next(); +void previous(); +void up(); +void down(); +void number(int); \ No newline at end of file