diff options
Diffstat (limited to 'Lab_2B.X/lab2b_c.c')
| -rw-r--r-- | Lab_2B.X/lab2b_c.c | 141 |
1 files changed, 101 insertions, 40 deletions
diff --git a/Lab_2B.X/lab2b_c.c b/Lab_2B.X/lab2b_c.c index 4c63087..ae32849 100644 --- a/Lab_2B.X/lab2b_c.c +++ b/Lab_2B.X/lab2b_c.c @@ -1,5 +1,6 @@ #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)
@@ -15,8 +16,18 @@ #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 5
+#define PERIOD 120
+//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
@@ -25,8 +36,6 @@ void setup(void) { TRISB = 0x0000;
wait_100us();
}
-void writeColor(short r, short g, short b);
-void loop(void);
int main(void) {
setup();
@@ -35,43 +44,6 @@ int main(void) { return 0;
}
-void writeColor(short r, short g, short 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 loop(void) {
while (1) {
// LATA = 0x0000;
@@ -109,6 +81,95 @@ void loop(void) { // 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);
+}
\ No newline at end of file |