modifi make program to use micronucleus

dev-files/60-avr-uspasp.rules

@@ -0,0 +1,2 @@
+SUBSYSTEM=="usb", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="05dc", 
+GROUP="uucp", MODE="0666"

dev-files/99-avrprogrammer.rules

@@ -0,0 +1,3 @@
+# Set group for a programmer matching with vendor and product IDs
+SUBSYSTEM=="usb", ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="0753", GROUP="uucp", MODE="0666"
+KERNEL=="ttyACM*", ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="0753", MODE:="0666", ENV{ID_MM_DEVICE_IGNORE}="1"

dev-install.sh

@@ -0,0 +1,6 @@
+sudo cp ./dev-files/* /etc/udev/rules.d/
+sudo udevadm control --reload
+sudo usermod ccppi -aG uucp
+newgrp uucp
+
+sudo pacman -S avr-gcc avr-libc avrdude micronucleus

main.c

@@ -1,3 +1,4 @@
+#include<math.h>
 #include<util/delay.h>
 #include<avr/io.h>
 #include"fix_fft.h"
@@ -7,6 +8,7 @@
 #include"main.h"
 
 #define STARTADC ADCSRA |= (1<<ADSC)
+#define WAITADC ADCSRA & (1<<ADSC)
 #define PB_mic PB0
 #define NOISE 100
 #define SCALE_FACTOR 10
@@ -29,7 +31,6 @@
 //7-	880
 //8-	1kHz
 //
-const float log_scale = 64./log(64./SCALE_FACTOR + 1.);  
 
 int msec;
 int main (void)
@@ -38,9 +39,9 @@ int main (void)
 		int colorb;
 		int colora;
 		int sum,avg;
-		char sample[64];
-		char im[64];
-		char buff[64];
+		static char sample[64];
+		static char im[64];
+		static char buff[64];
 		char temp;
 		msec=0;
 		struct cRGB led_bar1[8];
@@ -69,6 +70,7 @@ int main (void)
 				{	
 				msec=0;
 						STARTADC; 
+                        WAITADC;//as adc is slower than cpu
 						sample[i] = (ADCH-128); //read Analog value register 8bit center -128
 						//sample[i] = (sample[i] <= NOISE) ? 0 : (sample[i] - NOISE);						  //noise reduction
 						im[i]=0;		//pseudo data for funciton
@@ -90,7 +92,7 @@ int main (void)
 						if(sample[i]<0) sample[i] = 0;
 						if(sample[i]>64) sample[i]=64;
 						sample[i] = sample[i] *SCALE_FACTOR;
-						sample[i] = (sample[i]*0.7 + buff[i]*0.3);
+						sample[i] = (sample[i]*7 + buff[i]*3)/10;
 						buff[i] = sample[i];	
 
 				}
@@ -121,14 +123,16 @@ int main (void)
 								led_bar1[i].b=sample[i]/2;
 						}
 				}				
+                cli();//disable interupts to prevent intereference
 				ws2812_setleds(led_bar1,8);
+                sei();//reenable interupts
 		}
 return 0;                 
 }
 
 int map(int value, int old_min, int old_max,int new_min, int new_max)
 {
-		return (new_max/old_max*value);
+        return (value - old_min) * (new_max - new_min) / (old_max - old_min) + new_min;
 }
 
 void setupTimer(void)

main.h

@@ -0,0 +1,3 @@
+void wait_period(void);
+int map(int value, int old_min, int old_max,int new_min, int new_max);
+void setupTimer(void);

makefile

@@ -142,7 +142,11 @@ sym: $(TARGET).sym
 
 # Program the device.  
 program: $(TARGET).hex $(TARGET).eep
-	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
+	#for normal attiny85 or with usbasp 
+	#$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
+
+	#this is for digispark attiny85 with micronucleus bootloader on it
+	micronucleus --run $(TARGET).hex