Now w/ kbhit() & working!

software/include/illumination.h

@@ -4,5 +4,5 @@ extern void enable_LEDS(int iEnable);
 extern void send_LEDs(void);
 extern void clear_LEDs(int iTable);
 extern void load_triple_LEDs(int iTable, int32_t green, int32_t red, int32_t blue);
-extern void illumination(void);
+extern int illumination(void);
 #endif

software/source/illumination.c

@@ -46,6 +46,26 @@ extern void busy_wait(unsigned int ms); // Worx!
 #define MAXLEDS 27 // 1..256 MUST match h/w!
 static int32_t arLEDBuffer[MAXTABLES][MAXLEDS]; // GRB values
 
+extern char kbhit(void);
+extern int key_eval(void);
+
+static int iDelay = 100; // 100ms by default
+
+int key_eval(void)
+{
+	switch(kbhit()) {
+		case 'w': if(iDelay < 200)
+					iDelay += 10; 
+				  break;
+		case 's': if(iDelay > 20) 
+					iDelay -= 10; 
+				  break;
+		case 'x': return 1; // Abort indication
+		default: ;
+	}
+	return(0);
+}
+
 void enable_LEDS(int iEnable)
 {
 	npe_b8Len_write(MAXLEDS); // Prepare length
@@ -79,7 +99,7 @@ void load_triple_LEDs(int iTable, int32_t green, int32_t red, int32_t blue)
 	}	
 }
 
-void illumination(void)
+int illumination(void)
 {	
 	int32_t green = 0x040000;
 	int32_t red = 0x000400;
@@ -107,7 +127,8 @@ void illumination(void)
 		for(iTable=0;iTable<MAXTABLES;iTable++)
 			load_triple_LEDs(iTable, green, red, blue);
 		send_LEDs();
-		busy_wait(80); // Slow down a bit
+		busy_wait(iDelay); // Slow down a bit
+		if(key_eval()) return 1;
 	}
 	// Make 3 run along ...
 	green = 0x404000;
@@ -122,22 +143,24 @@ void illumination(void)
 	int max_LED = MAXLEDS-1; // 0..26
 	for(int i=0;i<MAXLEDS-3;i++) { // Forward shift 3
 		send_LEDs();
-		busy_wait(100);
+		busy_wait(iDelay);
 		for(iTable=0;iTable<MAXTABLES;iTable++) {
 			for(int j=0;j<max_LED;j++)
 				arLEDBuffer[iTable][max_LED - j] = arLEDBuffer[iTable][(max_LED - 1) - j];
 			arLEDBuffer[iTable][i] = 0;
 		}
+		if(key_eval()) return 1;
 	}
 	printf("Halfway thru ...\n");
 	for(int i=0;i<MAXLEDS-1;i++) { // Backward shift 3
 		send_LEDs();
-		busy_wait(100);
+		busy_wait(iDelay);
 		for(iTable=0;iTable<MAXTABLES;iTable++) {
 			for(int j=0;j<max_LED;j++)
 				arLEDBuffer[iTable][j] = arLEDBuffer[iTable][j+1];
 			arLEDBuffer[iTable][max_LED-i] = 0;
 		}
+		if(key_eval()) return 1;
 	}
 	busy_wait(400);
 
@@ -148,5 +171,6 @@ void illumination(void)
 	busy_wait(500);
 	enable_LEDS(0);
 	printf("Finished!\n");
+	return 0;
 }
 

software/source/main.c

@@ -42,9 +42,17 @@
 #include "../include/illumination.h"
 
 extern void busy_wait(unsigned int ms); // Worx!
+extern char kbhit(void);
 
 int32_t cpc; // Current PC storage
 
+char kbhit(void)
+{
+	if(readchar_nonblock())
+		return readchar();
+	return '\0';	
+}
+
 int main(int i, char **c)
 {	
 	char buffer[CMD_LINE_BUFFER_SIZE];
@@ -74,9 +82,12 @@ int main(int i, char **c)
 #ifdef CONSOLE_NON_BLOCKING		
 		extern void set_console(int non_blocking);
 		set_console(1); // 1=Non-blocking (0=standard/blocking)
+		extern int readchar_nonblock(void);		
 #endif		
 		while(1)
-			illumination(); // The DEMO !	
+			if(illumination()) // The DEMO !	
+				break;
+				
 		while(1) {			
 			printf("\n%s", PROMPT);
 			readline(buffer, CMD_LINE_BUFFER_SIZE);