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sound.c
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#include "sound.h"
void sound_start_do() {
}
void sound_start_re() {
}
void sound_start_mi() {
}
void sound_start_fa() {
}
void sound_start_sol() {
}
void sound_start_la() {
}
void sound_start_si() {
}
void sound_end_do() {
}
void sound_end_re() {
}
void sound_end_mi() {
}
void sound_end_fa() {
}
void sound_end_sol() {
}
void sound_end_la() {
}
void sound_end_si() {
}
// Bip sound
void sound_start_bip() {
// Configuration E6 pin to TOUT3
PCONE = PCONE & ~(1 << 12);
PCONE = PCONE | (1 << 13);
// Timer 3 configuration: prescaler=255; divider=16
// Signal frequency = 14.6 kHz
// Auto-reload on, manual update off, timer 3 stopped
TCFG0 = TCFG0 & ~(0x0000ff00);
TCFG0 = TCFG0 | (0x0000ff00);
TCFG1 = TCFG1 & ~(0x0000f000);
TCFG1 = TCFG1 | 0x00003000;
TCON = TCON & ~(0x000f0000);
TCON = TCON | (0x00080000);
// Load timer buffers
TCNTB3 = TCNTB3 & ~(0xffff);
TCNTB3 = TCNTB3 | (0x000e); // e dans le TCNTB: on divise la freq 14.6 par 6
TCMPB3 = TCMPB3 & ~(0xffff);
TCMPB3 = TCMPB3 | (0x0001);
// Load buffered values into registers
// Manual update on/off
// Start timer
TCON = TCON | (1 << 17);
TCON = TCON & ~(1 << 17);
TCON = TCON | (1 << 16);
}
void sound_end_bip() {
// Unplug TOUT3 and E6 pin
// Turn off timer
PCONE = PCONE & ~(1 << 13);
TCON = TCON & ~(1 << 16);
}