working example with max7219. all max7219 stuff was done insidne main. must be put into device drivers in the futer + cmake must be adapted for this

main.c

@@ -8,6 +8,24 @@
 
 //#include "ked/device_drivers/max7219/max7219.h "
 
+typedef enum{
+	NO_DECODE_DIGIT_7_TO_0 = 0x00,
+	CODE_B_DECODE_ONLY_DIGIT_0 = 0x01,
+	CODE_B_DECODE_ONLY_DIGIT_3_TO_0 = 0x0F,
+	CODE_B_DECOD_DIGIT_7_TO_0 = 0xFF
+}max7219_decodeMode_t;
+
+typedef enum{
+	DISPLAY_DIGIT_0 = 0x00,
+	DISPLAY_DIGIT_1_TO_0 = 0x01,
+	DSIPLAX_DIGIT_2_TO_0 = 0x02,
+	DSIPLAX_DIGIT_3_TO_0 = 0x03,
+	DSIPLAX_DIGIT_4_TO_0 = 0x04,
+	DSIPLAX_DIGIT_5_TO_0 = 0x05,
+	DSIPLAX_DIGIT_6_TO_0 = 0x06,
+	DSIPLAX_DIGIT_7_TO_0 = 0x07
+}max7219_scanLimit_t;
+
 typedef struct{
 	spi_ch_t *spiCH;
 }max7219_t;
@@ -26,6 +44,58 @@ void max7219_testDisplay(
 	spiWriteReg(display->spiCH,0x0F, (logic) ? 0x01 : 0x00);
 }
 
+void max7219_shutdownDiaply(
+		max7219_t *display,
+		uint8_t logic)
+{
+	spiWriteReg(display->spiCH,0x0C, (logic) ? 0x00 : 0x01);
+}
+
+void max7219_setDecodeMode(
+		max7219_t *display,
+		max7219_decodeMode_t dmode)
+{
+	spiWriteReg(display->spiCH,0x09,(uint8_t) dmode);
+}
+
+void max7219_setIntensity(
+		max7219_t *display,
+		uint8_t intensity)
+{
+	spiWriteReg(display->spiCH, 0x0A, intensity & 0x0F);
+}
+		
+void max7219_setScanLimit(
+		max7219_t *display,
+		max7219_scanLimit_t slimit)
+{
+	spiWriteReg(display->spiCH, 0x0B, ((uint8_t) slimit) & 0x0F);
+}
+
+void max7219_setAllLEDsOff(
+		max7219_t *display)
+{
+	uint8_t i;
+	for(i = 0; i < 9; i++) {
+		spiWriteReg(display->spiCH, i, 0x00);
+	}
+}
+
+void max7219_ledMatrixSetLED(
+		max7219_t *display,
+		uint8_t row,
+		uint8_t col)
+{
+
+	uint8_t val = 0xAE;
+
+	row = (row & 0x07) + 1;
+	col = 1 << (col & 0x07);
+
+	spiWriteReg(display->spiCH, row,col);
+}
+
+
 
 void dispTest(max7219_t *disp)
 {
@@ -35,6 +105,7 @@ void dispTest(max7219_t *disp)
 	delayMs(500);
 }
 
+
 void max7219_test_display(spi_ch_t* spi_ch)
 {
 	// set mode to display test
@@ -76,7 +147,7 @@ void max7219_test_display(spi_ch_t* spi_ch)
 	delayMs(1000);*/
 }
 
-void max7219_setIntensity(spi_ch_t* spi_ch, uint8_t intensity)
+void max7219_SetIntensity(spi_ch_t* spi_ch, uint8_t intensity)
 {
 	spiWrite16bit(spi_ch, 0x0A00 | intensity);
 }
@@ -85,7 +156,7 @@ void max7219_setIntensity(spi_ch_t* spi_ch, uint8_t intensity)
 int main(int argc, char *argv[])
 {
 	uint8_t i = 0;
-	
+	uint8_t j = 0;
 	spi_ch_t spi_test_channel;
 	max7219_t ledMatrix;
 
@@ -168,12 +239,40 @@ int main(int argc, char *argv[])
 		delayMs(50); 
 	}
 
+	max7219_testDisplay(&ledMatrix,1);
+	delayMs(500);
+	max7219_testDisplay(&ledMatrix,0);
+	max7219_shutdownDiaply(&ledMatrix,0);
+	max7219_setDecodeMode(&ledMatrix, NO_DECODE_DIGIT_7_TO_0);
+	max7219_setScanLimit(&ledMatrix, DSIPLAX_DIGIT_7_TO_0);
+	max7219_setIntensity(&ledMatrix,0x01);
+
+	max7219_ledMatrixSetLED(&ledMatrix,0,0);
+	delayMs(1000);
+	max7219_setAllLEDsOff(&ledMatrix);
+/*
+	for(i=0; i < 8; i++) {
+		max7219_ledMatrixSetLED(&ledMatrix,i,i);
+		delayMs(100);
+	}
+*/
+	while(1) {
+		for(i=0; i < 0x8; i++) {
+			max7219_ledMatrixSetLED(&ledMatrix,i,i+j);
+			//delayMs(20);
+		}
+		delayMs(50);
+		j++;
+		if(j > 7) j =0;
+	}
+	
+	/*
 	while(1){
 		pinToggle(pinB3);
 		dispTest(&ledMatrix);
 		//max7219_test_display(&spi_test_channel);
 	}
-
+*/
 	for(i = 0 ; i < 100 ; i++) {
 		pinWrite(pinB3, 1);
 		//pinWrite(pinA4,1);