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Sound4Calc
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from bytes to bits

This commit is contained in:
flo 2017-03-04 15:11:14 +01:00
parent 523ea45acd
commit 5649753dfc
3 changed files with 57 additions and 30 deletions
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2
include/sound4calc.h
View File

@ -3,7 +3,7 @@
struct Wave
{
char signal[25];
unsigned short signal;
unsigned short length;
};

56
src/main.c
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@ -1,46 +1,46 @@
#include "main.h"
#include "sound4calc.h"
#include <timer.h>
#include <display.h>
#include <keyboard.h>
#include "string.h"
//#define PI 3.141592653584
void DrawKeyF(char* str, unsigned char keyF)
{
dprint((keyF-1)*22 + 8 - 2*strlen(str), 55, "%s", str);
dreverse_area((keyF-1)*22 - 2 , 54, keyF * 21, 64);
}
int main(void)
{
unsigned int key = 0;
unsigned short place = 0;
unsigned char str[16];
// initialisation to play
note.freq = 440;
note.wave.signal[0] = 0;
note.wave.signal = 0;
note.duration = 2000;
note.wave.length = 16; // 2 bytes long
InitPorts();
while(1)
{
note.wave.length = place;
dclear();
dprint(1, 1, "%d", note.freq);
dprint(1, 10, "%s", note.wave.signal);
dprint(1, 20, "%d", note.wave.length);
dprint(1, 1, "frq = %d", note.freq);
dprint(1, 10, "%s", str);
dprint(1, 20, "%d", note.wave.signal);
dprint(1, 30, "%d", place);
dprint(1, 40, "length %d", note.wave.length);
DrawKeyF("not", 1);
DrawKeyF("seq", 2);
DrawKeyF("_", 5);
DrawKeyF("-", 6);
DrawKeyF("1", 5);
DrawKeyF("0", 6);
dupdate();
str[place] = 0;
note.wave.signal = atob(str, note.wave.length);
key = getkey();
switch(key)
@ -50,9 +50,13 @@ int main(void)
case KEY_UP : note.freq+=10; break;
case KEY_DOWN : note.freq-=10; break;
case KEY_F5 : *(note.wave.signal+place++) = '_'; *(note.wave.signal+place) = 0; break;
case KEY_F6 : *(note.wave.signal+place++) = '-'; *(note.wave.signal+place) = 0; break;
case KEY_DEL : place=(place>0 ? place - 1 : 0); *(note.wave.signal+place) = 0; break;
case KEY_F5 : str[place] = '1'; place=(place < note.wave.signal ? place + 1 : place); break;
case KEY_F6 : str[place] = '0'; place=(place < note.wave.signal ? place + 1 : place); break;
case KEY_DEL : place=(place>0 ? place - 1 : 0); break;
//case KEY_F5 : *(note.wave.signal+place++) = 255; *(note.wave.signal+place) = 0; break;
//case KEY_F6 : *(note.wave.signal+place++) = 240; *(note.wave.signal+place) = 0; break;
//case KEY_DEL : place=(place>0 ? place - 1 : 0); *(note.wave.signal+place) = 0; break;
case KEY_F1 : CallNote(); break;
case KEY_F2 : CallSequence(); break;
@ -62,3 +66,19 @@ int main(void)
}
return 1; // this point is never reached
}
void DrawKeyF(char* str, unsigned char keyF)
{
dprint((keyF-1)*21 + 11 - 3*strlen(str), 55, "%s", str);
dreverse_area((keyF-1)*21 + 1 , 54, keyF * 21 - 1, 64);
}
int atob(unsigned char* str, int bit_nb)
{
unsigned int tmp = 0;
for(int i = 0; i < bit_nb; i++)
{
tmp += ((str[i] - '0') * (0x1 << (bit_nb - i - 1)));
}
return tmp;
}

29
src/sound4calc.c
View File

@ -8,7 +8,10 @@ static struct {
} seq[] = {
{ 440, 500 },
{ 392, 500 },
{ 349, 1000 },
{ 349, 1000 },
{ 262, 500 },
{ 294, 500 },
{ 262, 1000 },
{ -1, -1 },
};
@ -72,9 +75,12 @@ void PlayNote()
{
static int x = 0;
PutPinState(note.wave.signal[x]=='-');
PutPinState((note.wave.signal >> x) & 0x01);
x = x + 1;
if(!(note.wave.signal[x])) x = 0;
if(x>=note.wave.length)
{
x = 0;
}
}
/*
@ -82,8 +88,11 @@ void PlayNote()
put the pin at the level wanted
SH4 :
state 0 : xxxx.01xx
state 1 : xxxx.10xx
state 0 : xxxx.x0xx
state 1 : xxxx.x1xx
We can put 2 other state but the sound volume is too high
SH3 :
state 0 : xxxx.xxx0
state 1 : xxxx.xxx1
@ -98,7 +107,7 @@ void PutPinState(char level)
}
else
{
*(volatile unsigned char*)SH7305_PJDR = (*(volatile unsigned char*)SH7305_PJDR & 0xF3) | (0x4 << level);
*(volatile unsigned char*)SH7305_PJDR = (*(volatile unsigned char*)SH7305_PJDR & 0xF3) | (0x2 << level);
}
}
@ -139,14 +148,12 @@ void InitPorts()
*(volatile unsigned char*)SH7305_PUDR |= 0x0C;
// set port J bit 2 to output
*(unsigned short*)0xA4050110 = ( *(unsigned short*)0xA4050110 & ~0x0030 ) | 0x0010;
// set port J bit 3 to input
*(unsigned short*)0xA4050110 = ( *(unsigned short*)0xA4050110 & ~0x00C0 ) | 0x0080;
/*
// set port J bit 2 to output mode
*(volatile unsigned short*)SH7305_PJCR = ( *(volatile unsigned short*)SH7305_PJCR & ~0x0030 ) | 0x0010;
// set port J bit 3 to output mode
*(volatile unsigned short*)SH7305_PJCR = ( *(volatile unsigned short*)SH7305_PJCR & ~0x00C0 ) | 0x0040;
*/
//*(volatile unsigned short*)SH7305_PJCR = ( *(volatile unsigned short*)SH7305_PJCR & ~0x00C0 ) | 0x0040;
}
}