flyttet OLED til EXT3

Debugger_Demo/Debugger_Demo/main.c

@@ -4,13 +4,14 @@
  */ 
 
 
+#define F_CPU 3333333UL
+#define BAUD_9600 ((4UL*F_CPU)/9600)
+
+
 #include <avr/io.h>
 #include <avr/interrupt.h>
 #include <stdio.h>
-
-
-#define F_CPU 3333333UL
-#define BAUD_9600 ((4UL*F_CPU)/9600)
+#include <util/delay.h>
 
 
 int uart_transmit(char data, FILE* stream){
@@ -48,12 +49,13 @@ ISR(USART0_RXC_vect){
 
 int main(void)
 {
-	uart_init(BAUD_9600);
+	uart_init(9600);
 	
 	
     while (1) 
     {
-		
+		uart_transmit('O', NULL);
+		_delay_ms(1000);
     }
 }
 

Session3-LF/Task2_LF/Task2_LF/display.c

@@ -5,11 +5,11 @@
 #define F_CPU 3333333UL
 
 
-#define DSP_MODE_bm 1<<7 
-#define DSP_MODE_PORT PORTB
+#define DSP_MODE_bm 1<<5 
+#define DSP_MODE_PORT PORTC
 
-#define DSP_RST_bm 1<<4 
-#define DSP_RST_PORT PORTA
+#define DSP_RST_bm 1<<5 
+#define DSP_RST_PORT PORTB
 
 
 // System headers

Session3-LF/Task2_LF/Task2_LF/main.c

@@ -11,6 +11,19 @@
 
 #include "display.h"
 
+/*
+	In this exercise you will write a driver for the SPI module. You will connect the OLED screen to the EXT3 header
+	and use your SPI driver to write bitmaps and text to the screen.
+	A finished driver for the screen is provided (display.c), as as a font for it. These build uppon the SPI driver.
+	You can read display.h to see what functions you can use with the screen.
+	No help beyond the function headers is provided. To start, it's recommend you: 
+
+	a) glance over the chapter on SPI in the ATtiny817 datasheet
+	b) find out what pins of the ATtiny the screen is connected to 
+
+
+*/
+
 
 const uint8_t bitmap[512] PROGMEM =
 {

Session3-LF/Task2_LF/Task2_LF/spi.c

@@ -9,18 +9,14 @@
 // Project headers
 #include "spi.h"
 
-// In this file, you will need to write the contents of the SPI communication routines.
-// You need to setup SPI communication in SPI_MasterInit() and
-// transmit data in SPI_MasterTransmit(...).
-//
-// HINT: Check out the , and as always:
-// RTFD
+
 
 //Oled is connected to alternate SPI pins
 #define MOSI_bm 1<<2 //on port C
 #define SCK_bm 1<<0 //on port C
-#define SS_bm 1<<3 //on port C
+#define SS_bm 1<<3 //on port A
 #define SPI_PORT PORTC //We can now use SPI_PORT.DIR, .OUT etc.
+#define SS_PORT PORTA //SS is on a different port
 
 //We could also have defined bit positions for MOSI, SCL and SS.
 
@@ -31,11 +27,14 @@ void SPI_MasterInit()
 	// Initialize the SPI port as master
 	// You will need to set MOSI, SCK, SS (slave select) as outputs
 	
+	//Connect OLED to EXT3
+	
 	PORTMUX.CTRLB |= PORTMUX_SPI0_bm; //To use alternative SPI pins
 	
-	SPI_PORT.DIR |= MOSI_bm | SCK_bm | SS_bm; //Set pins as output
+	SPI_PORT.DIR |= MOSI_bm | SCK_bm; //Set pins as output
+	SS_PORT.DIR |= SS_bm;
 
-	SPI_PORT.OUTSET = SS_bm; //Set SS high -> OLED inactive
+	SS_PORT.OUTSET = SS_bm; //Set SS high -> OLED inactive
 	
 	
 	// Now enable SPI, Master and set clock rate
@@ -52,7 +51,7 @@ void SPI_MasterInit()
 void SPI_MasterTransmit(char cData)
 {
 	// First select the correct slave by setting its slave select (SS) LOW
-	SPI_PORT.OUTCLR = SS_bm;
+	SS_PORT.OUTCLR = SS_bm;
 
 	// Then start the transmission by assigning the data to the SPI data register
 	SPI0.DATA = cData;
@@ -65,5 +64,5 @@ void SPI_MasterTransmit(char cData)
 	SPI0.DATA; //Dummy read to clear flag
 
 	// Finally set the slave select bit HIGH before leaving the function
-	SPI_PORT.OUTSET = SS_bm;
+	SS_PORT.OUTSET = SS_bm;
 }

Session3/Task2/main.c

@@ -12,7 +12,7 @@
 #include "display.h"
 
 /*
-	In this exercise you will write a driver for the SPI module. You will connect the OLED screen to the EXT1 header
+	In this exercise you will write a driver for the SPI module. You will connect the OLED screen to the EXT3 header
 	and use your SPI driver to write bitmaps and text to the screen.
 	A finished driver for the screen is provided (display.c), as as a font for it. These build uppon the SPI driver.
 	You can read display.h to see what functions you can use with the screen.