diff options
| -rw-r--r-- | Lab_2B.X/lab2b_c.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/Lab_2B.X/lab2b_c.c b/Lab_2B.X/lab2b_c.c new file mode 100644 index 0000000..ef5eb45 --- /dev/null +++ b/Lab_2B.X/lab2b_c.c @@ -0,0 +1,175 @@ +#include "xc.h"
+#include "lab2b_header.h"
+#include "stdint.h"
+// CW1: FLASH CONFIGURATION WORD 1 (see PIC24 Family Reference Manual 24.1)
+#pragma config ICS = PGx1 // Comm Channel Select (Emulator EMUC1/EMUD1 pins are shared with PGC1/PGD1)
+#pragma config FWDTEN = OFF // Watchdog Timer Enable (Watchdog Timer is disabled)
+#pragma config GWRP = OFF // General Code Segment Write Protect (Writes to program memory are allowed)
+#pragma config GCP = OFF // General Code Segment Code Protect (Code protection is disabled)
+#pragma config JTAGEN = OFF // JTAG Port Enable (JTAG port is disabled)
+
+
+// CW2: FLASH CONFIGURATION WORD 2 (see PIC24 Family Reference Manual 24.1)
+#pragma config I2C1SEL = PRI // I2C1 Pin Location Select (Use default SCL1/SDA1 pins)
+#pragma config IOL1WAY = OFF // IOLOCK Protection (IOLOCK may be changed via unlocking seq)
+#pragma config OSCIOFNC = ON // Primary Oscillator I/O Function (CLKO/RC15 functions as I/O pin)
+#pragma config FCKSM = CSECME // Clock Switching and Monitor (Clock switching is enabled,
+ // Fail-Safe Clock Monitor is enabled)
+#pragma config FNOSC = FRCPLL // Oscillator Select (Fast RC Oscillator with PLL module (FRCPLL))
+#define PERIOD 200
+
+//DEFINTIONS
+void writeColor(int r, int g, int b);
+void loop(void);
+void delay(int delay_in_ms);
+uint32_t packColor(unsigned char Red, unsigned char Grn, unsigned char Blu);
+unsigned char getR(uint32_t RGBval);
+unsigned char getG(uint32_t RGBval);
+unsigned char getB(uint32_t RGBval);
+void writePacCol(uint32_t PackedColor);
+uint32_t Wheel(unsigned char WheelPos);
+
+void setup(void) {
+ CLKDIVbits.RCDIV = 0; //Set RCDIV=1:1 (default 2:1) 32MHz or FCY/2=16M
+ AD1PCFG = 0x9fff;
+ TRISA = 0b1111111111111110;
+ TRISB = 0x0000;
+ wait_100us();
+}
+
+int main(void) {
+ setup();
+ wait_100us();
+ loop();
+ return 0;
+}
+
+void loop(void) {
+ while (1) {
+// LATA = 0x0000;
+// wait_100us();
+//
+// //RED
+// write_1();
+// write_1();
+// write_1();
+// write_1();
+//
+// write_1();
+// write_1();
+// write_1();
+// write_1();
+//
+// //GREEN
+// write_1();
+// write_0();
+// write_0();
+// write_1();
+//
+// write_1();
+// write_0();
+// write_1();
+// write_1();
+//
+// //BLUE
+// write_0();
+// write_0();
+// write_0();
+// write_0();
+//
+// write_0();
+// write_0();
+// write_0();
+// write_0();
+/*
+ writeColor(255, 155, 000);
+*/
+ int byteFrameNumber = 0;
+ while (byteFrameNumber <= 255) {
+// // COLOR GRADIENT
+// writeColor(byteFrameNumber, 0 , 255 - byteFrameNumber);
+ //COLOR WHEEL
+ writePacCol(Wheel(byteFrameNumber));
+ delay(PERIOD);
+ byteFrameNumber++;
+ }
+ }
+}
+
+void writeColor(int r, int g, int b) {
+ short i = 0;
+ LATA = 0x0000;
+ wait_100us();
+ //RED
+ while (i < 8) {
+ if (r & 1) {
+ write_1();
+ } else {
+ write_0();
+ }
+
+ r >>= 1;
+ ++i;
+ }
+ //GREEN
+ while (i > 0) {
+ if (g & 1) {
+ write_1();
+ } else {
+ write_0();
+ }
+ g >>= 1;
+ --i;
+ }
+ //BLUE
+ while (i < 8){
+ if (b & 1) {
+ write_1();
+ } else {
+ write_0();
+ }
+ b >>= 1;
+ ++i;
+ }
+}
+
+void delay(int delay_in_ms) {
+ int i = 0;
+ while (i < delay_in_ms) {
+ wait_1ms();
+ i++;
+ }
+}
+
+uint32_t packColor(unsigned char Red, unsigned char Grn, unsigned char Blu) {
+ return ((long) Red << 16) | ((long) Grn << 8) | ((long) Blu);
+}
+
+unsigned char getR(uint32_t RGBval) {
+ return (unsigned char) (RGBval >> 16);
+}
+unsigned char getG(uint32_t RGBval) {
+ return (unsigned char) (RGBval >> 8 );
+}
+unsigned char getB(uint32_t RGBval) {
+ return (unsigned char) (RGBval >> 0 );
+}
+
+void writePacCol(uint32_t PackedColor) {
+ writeColor(getR(PackedColor), getG(PackedColor), getB(PackedColor));
+}
+
+uint32_t Wheel(unsigned char WheelPos) {
+// Input a value 0 to 255 to get a color value.
+// The colours are a transition r - g - b - back to r.
+ WheelPos = 255 - WheelPos;
+ if(WheelPos < 85) {
+ return packColor(255 - WheelPos * 3, 0, WheelPos * 3);
+ }
+ if(WheelPos < 170) {
+ WheelPos -= 85;
+ return packColor(0, WheelPos * 3, 255 - WheelPos * 3);
+ }
+ WheelPos -= 170;
+ return packColor(WheelPos * 3, 255 - WheelPos * 3, 0);
+}
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