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Gain fiddle and fixed LEDs

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This commit is contained in:
Ross Owen
2015-09-23 10:38:24 +01:00
parent 38094b90c4
commit 5306fda2ab
1 changed files with 28 additions and 7 deletions
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35
module_usb_audio/pcm_pdm_mic.xc
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@@ -35,6 +35,24 @@ enum buttons
BUTTON_D=1<<3 BUTTON_D=1<<3
}; };
void lightLeds(int only_one_mic)
{
if(only_one_mic)
{
p_led10to12 <: 0x3;
p_led0to7 <: 0xff;
p_led8 <: 1;
p_led9 <: 1;
}
else
{
p_led0to7 <: 0;
p_led10to12 <: 0x4;
p_led8 <: 0;
p_led9 <: 0;
}
}
#define BUTTON_PRESSED(but_mask, old_val, new_val) (((old_val) & (but_mask)) == (but_mask) && ((new_val) & (but_mask)) == 0) #define BUTTON_PRESSED(but_mask, old_val, new_val) (((old_val) & (but_mask)) == (but_mask) && ((new_val) & (but_mask)) == 0)
#define BUTTON_DEBOUNCE_DELAY (20000000) #define BUTTON_DEBOUNCE_DELAY (20000000)
#define LED_ON 0xFFFF #define LED_ON 0xFFFF
@@ -83,7 +101,9 @@ void buttons_and_leds(chanend c)
// p_leds_oen <:~0; // p_leds_oen <:~0;
p_led10to12 <: ~((only_one_mic&0x1)<<2); lightLeds(only_one_mic);
only_one_mic? printstrln("one"):printstrln("all");
level[0] = 0xff; level[0] = 0xff;
while (1) { while (1) {
select select
@@ -95,7 +115,9 @@ void buttons_and_leds(chanend c)
debug_printf("Button A\n"); debug_printf("Button A\n");
only_one_mic = 1-only_one_mic; only_one_mic = 1-only_one_mic;
only_one_mic? printstrln("one"):printstrln("all"); only_one_mic? printstrln("one"):printstrln("all");
p_led10to12 <: ~((only_one_mic&0x1)<<2);
lightLeds(only_one_mic);
c <: 0; c <: 0;
buttons_active = 0; buttons_active = 0;
} }
@@ -103,7 +125,7 @@ void buttons_and_leds(chanend c)
debug_printf("Button B\n"); debug_printf("Button B\n");
only_one_mic = 1-only_one_mic; only_one_mic = 1-only_one_mic;
only_one_mic? printstrln("one"):printstrln("all"); only_one_mic? printstrln("one"):printstrln("all");
p_led10to12 <: ~((only_one_mic&0x1)<<2); lightLeds(only_one_mic);
c <: 0; c <: 0;
buttons_active = 0; buttons_active = 0;
} }
@@ -111,7 +133,6 @@ void buttons_and_leds(chanend c)
debug_printf("Button C\n"); debug_printf("Button C\n");
only_one_mic = 1-only_one_mic; only_one_mic = 1-only_one_mic;
only_one_mic? printstrln("one"):printstrln("all"); only_one_mic? printstrln("one"):printstrln("all");
p_led10to12 <: ~((only_one_mic&0x1)<<2);
c <: 0; c <: 0;
buttons_active = 0; buttons_active = 0;
} }
@@ -119,7 +140,7 @@ void buttons_and_leds(chanend c)
debug_printf("Button D\n"); debug_printf("Button D\n");
only_one_mic = 1-only_one_mic; only_one_mic = 1-only_one_mic;
only_one_mic? printstrln("one"):printstrln("all"); only_one_mic? printstrln("one"):printstrln("all");
p_led10to12 <: ~((only_one_mic&0x1)<<2); lightLeds(only_one_mic);
c <: 0; c <: 0;
buttons_active = 0; buttons_active = 0;
} }
@@ -211,7 +232,7 @@ void example(streaming chanend c_ds_output_0, streaming chanend c_ds_output_1, s
default:break; default:break;
} }
#define GAIN 0 #define GAIN 7
if((-a) > max) max = (-a); if((-a) > max) max = (-a);
if(a > max) max = a; if(a > max) max = a;
@@ -233,7 +254,7 @@ void example(streaming chanend c_ds_output_0, streaming chanend c_ds_output_1, s
if(f > max) max = f; if(f > max) max = f;
output = a+b+c+d+e+f+g+g; output = a+b+c+d+e+f+g+g;
output >>=3; output >>=3;
output = output<<GAIN; output = output<<(GAIN+1);
} }
max = max - (max>>17); max = max - (max>>17);