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Dependencies: mbed
main.cpp
- Committer:
- Giamarchi
- Date:
- 2019-01-12
- Revision:
- 0:531f33a2550d
- Child:
- 1:95172f59262a
File content as of revision 0:531f33a2550d:
/*************************************/ // 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); } }