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Dependencies: mbed
Diff: main.cpp
- Revision:
- 0:531f33a2550d
- Child:
- 1:95172f59262a
diff -r 000000000000 -r 531f33a2550d main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sat Jan 12 00:43:50 2019 +0000 @@ -0,0 +1,60 @@ +/*************************************/ +// YNCREA ISEN CSI3 +// Electronique Numérique +// +// Cours : Systèmes à microcontrôleur +// Prof : Frédéric Giamarchi +// +// Exo 2.2 : Clignotemment de plusieurs Dels +/*************************************/ +#include "mbed.h" + +DigitalOut L0(PB_1); +DigitalOut L1(PB_2); +DigitalOut L2(PB_10); +DigitalOut L3(PB_11); +DigitalOut L4(PB_12); +DigitalOut L5(PB_13); +DigitalOut L6(PB_14); +DigitalOut L7(PB_15); + +uint8_t L[8] = {L0, L1, L2, L3, L4, L5, L6, L7}; + +void set_8Dels(uint8_t position) +{ + L0 = position & 0x01; + L1 = position & 0x02; + L2 = position & 0x04; + L3 = position & 0x08; + L4 = position & 0x10; + L5 = position & 0x20; + L6 = position & 0x40; + L7 = position & 0x80; + +// L[!position] = 0; +// L[position] = 1; +} + +uint8_t compteur = 1; +uint8_t sens = 0; + +int main() +{ + while(1) + { + wait(0.2); // 200 ms + if(!sens) + { + compteur<<=1; // décalage d'un bit vers la gauche + if(compteur == 0x80) + sens = 1; + } + else + { + compteur>>=1; // décalage d'un bit vers la droite + if(compteur == 0x01) + sens = 0; + } + set_8Dels(compteur); + } +} \ No newline at end of file