added src files

ADCrand595 is an example using ATtiny10 as random number generator with Seg7 debugger attached.

Author: ArduinoShop

ADCrand595.ino

@@ -0,0 +1,45 @@
+#include <util/delay.h>
+#include "Seg7.h"
+
+#define ADC0  0
+#define ADC1  1
+#define ADC2  2
+#define ADC3  3
+
+
+//Pin connected to ST_CP of 74HC595 = 12 = RCLK
+#define latchPin B2
+//Pin connected to SH_CP of 74HC595 = 11 = SRCLK
+#define clockPin B0
+////Pin connected to DS of 74HC595  = 14 = SER
+#define dataPin  B1
+
+void setup() {
+	
+  ADMUX |= ADC3;  //  <<MUX0;            // choose ADC
+  ADCSRA  = 1<<ADEN | 3<<ADPS0;    // Enable ADC, 125kHz clock
+ 
+  Seg7_init();   //  this will set B0, B1, B2 to OUTPUT for both the Seg7 and the 74HC595
+
+  DIDR0 = 0x0F;
+
+ Seg7_clear( 0 );	   //		Cleat the Seg7 display starting at position 0
+ Seg7_hex( 0xA3, 1 );  // write the value 0xA3 to the display - we will be displaying the value of ADC3
+ dWrite( MAX7219_Clk, LOW  ); // start the 595 clock low
+}
+
+void loop() {
+
+  uint8_t x, d = 0;
+  dWrite(latchPin, LOW);  //  keep the 595 latch/load pin LOW
+
+  ADCSRA = ADCSRA | 1<<ADSC;  // Start ADC
+  while (ADCSRA & 1<<ADSC);   // Wait while conversion in progress
+   _delay_ms( 2 );
+
+ d = ( ADCL ) & 1;  //  we are only interested in the lowest order bit of ADC3 for use as a random 1 or 0
+
+ Seg7_hex( d,  5 ); //  display the value of d at position 5
+_delay_ms( 250 );   //  update every 1/4 second
+
+}

Seg7.h

@@ -0,0 +1,26 @@
+#ifndef __Seg_7_H__
+#define __Seg_7_H__
+
+// #include <inttypes.h>
+// #include <Arduino.h>
+
+#define delay( x ) _delay_ms( x )
+
+#define MAX7219_Din B1
+#define MAX7219_CS  B0
+#define MAX7219_Clk B2
+
+#define NUM_DIGITS  8
+
+    
+  #define HIGH 1
+  #define LOW  0
+  #define delay( x ) _delay_ms( x )
+
+#define DecodeMODE_REG	0x09
+#define BrightNESS_REG	0x0A
+#define ScanlIMIT_REG	0x0B
+#define ShutDown_REG	0x0C
+#define DisplayTEST_REG	0x0F
+
+#endif

Seg7_Tiny10.ino

@@ -0,0 +1,101 @@
+#include "Seg7.h"
+
+uint8_t msk; // decode mask
+
+void Seg7_init() {
+  pMode( MAX7219_Din, OUTPUT);
+  pMode( MAX7219_CS,  OUTPUT);
+  pMode( MAX7219_Clk, OUTPUT);
+
+  output(DisplayTEST_REG,  0x0);  //  turn TEST mode OFF
+  output(ShutDown_REG,     0x1);  //  Start UP MAX7219
+  output(BrightNESS_REG,    0 );  //  Brightness to minimum
+  output(DecodeMODE_REG,  0xFF);  //  all digits to BCD mode
+  output(ScanlIMIT_REG,   NUM_DIGITS-1); //  Display all digits  
+
+}
+
+void Seg7_dec( uint16_t nm, uint8_t p )  {
+	
+  uint8_t x = 0;
+  char    stg[5];
+  stg[ 0 ] = ( nm/1000 ) | 0x30; nm = nm % 1000;
+  stg[ 1 ] = ( nm/100 ) | 0x30;  nm = nm % 100;
+  stg[ 2 ] = ( nm/10 ) | 0x30;   nm = nm % 10;
+  stg[ 3 ] = nm;
+  stg[ 4 ] = 0;
+
+  while( stg[x] ) {
+
+	output( p, stg[x] );
+
+  x++; p--;
+			}
+		}
+
+void Seg7_hex( uint16_t nm, uint8_t p )  {
+uint8_t Seg7font[6] = { 0x77, 0x1F, 0x4E, 0x3D, 0x4F, 0x47 };
+  uint8_t x = 0;
+  uint8_t stg[5];
+if( nm < 256 ) {
+  stg[ 0 ] = ((nm & 0xF0) >> 4) | 0x30;
+  stg[ 1 ] = ( nm & 0xF )       | 0x30;
+  stg[ 2 ] = 0;
+				}
+else {  
+  stg[ 0 ] = ((nm & 0xF000) >> 12) | 0x30;
+  stg[ 1 ] = ((nm & 0xF00 ) >> 8 ) | 0x30;
+  stg[ 2 ] = ((nm & 0xF0 )  >> 4 ) | 0x30;
+  stg[ 3 ] = (nm & 0xF) | 0x30;
+  stg[ 4 ] = 0;
+				}
+
+  while( stg[x] ) { stg[x] = stg[x] & 0xF;
+	  if( stg[x] > 9 ) {
+			 msk &= ~( 1<<( 7-p ) );
+		   	 output( DecodeMODE_REG, msk );
+         output( 8-p, Seg7font[ stg[x]-10 ] );
+		    }
+     else {
+       output( 8-p, stg[x] );
+		  }
+  
+ x++; p++;
+				}
+	}
+
+/****  the Arduino shiftOut function is not available in the Core10 package  **/
+void shift_out( uint8_t dta )
+  {
+    for( uint8_t x = 0; x < 8; x++ )
+    {  
+      dWrite( MAX7219_Din, dta & 0x80 );  delay( 1 );
+      dWrite( MAX7219_Clk, HIGH ); delay( 1 );
+      dWrite( MAX7219_Clk, LOW  );
+      dta = dta << 1; 
+    }
+  }
+	
+void Seg7_clear( uint8_t p ) {
+
+	int x;
+	output(DecodeMODE_REG, 0xFF ); msk = 0xFF;
+	for( x=8-p; x>0; x-- ) { output( x, 0xF ); }
+
+	}
+
+void Seg7_brightness( uint8_t b ) {
+	output( BrightNESS_REG, b );
+								}
+	
+void output( uint8_t address, uint8_t data) {
+
+  dWrite( MAX7219_CS, LOW );
+  shift_out( address);
+  shift_out( data   );
+  dWrite( MAX7219_CS, HIGH );
+
+}
+
+	
+