Curtis Mulady / Mbed 2 deprecated 4180_mP_WirelessPong_revA

miniProject-Wireless Pong

main.cpp@6:5563f0026858, 2012-10-04 (annotated)

Committer:
cmulady
Date:
Thu Oct 04 23:33:35 2012 +0000
Revision:
6:5563f0026858
Parent:
5:2e08cc167fff
Child:
7:c9ff6b5c8507
got ir packets working. strange errors popping up when i try doing lcd stuff at the same time.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cmulady 0:c8ddcaa575ba 1 #include "mbed.h"
cmulady 0:c8ddcaa575ba 2 #include "rtos.h"
cmulady 0:c8ddcaa575ba 3 #include "NokiaLCD.h"
cmulady 1:9ba884d85ac6 4 #include "XMIT_IR.h"
cmulady 0:c8ddcaa575ba 5
cmulady 1:9ba884d85ac6 6 #define FPS 5
cmulady 6:5563f0026858 7 #define UART_TIMEOUT 500
cmulady 1:9ba884d85ac6 8
cmulady 3:8e492eacd346 9 /****************************************
cmulady 3:8e492eacd346 10 |=======================================|
cmulady 3:8e492eacd346 11 |MBED Connections: |
cmulady 3:8e492eacd346 12 | -p5 : DIO on Sparkfun Nokia LCD |
cmulady 3:8e492eacd346 13 | -p7 : CLK on Sparkfun Nokia LCD |
cmulady 3:8e492eacd346 14 | -p8 : CS on Sparkfun Nokia LCD |
cmulady 3:8e492eacd346 15 | -p9 : RST on Sparkfun Nokia LCD |
cmulady 3:8e492eacd346 16 | -p22: GND on Sparkfun IR Xmtr |
cmulady 3:8e492eacd346 17 |=======================================|
cmulady 3:8e492eacd346 18 ****************************************/
cmulady 1:9ba884d85ac6 19
cmulady 3:8e492eacd346 20 //Pin Setup
cmulady 1:9ba884d85ac6 21 DigitalOut led1(LED1);
cmulady 1:9ba884d85ac6 22 DigitalOut led2(LED2);
cmulady 3:8e492eacd346 23 DigitalOut led3(LED3);
cmulady 3:8e492eacd346 24 DigitalOut led4(LED4);
cmulady 0:c8ddcaa575ba 25 NokiaLCD lcd(p5, p7, p8, p9, NokiaLCD::LCD6610); // mosi, sclk, cs, rst, type
cmulady 5:2e08cc167fff 26 Serial device(p13, p14); // tx, rx
cmulady 6:5563f0026858 27 Serial pc(USBTX,USBRX);
cmulady 5:2e08cc167fff 28 PwmOut IRLED_mod(p21);
cmulady 1:9ba884d85ac6 29
cmulady 3:8e492eacd346 30 //Global Vars
cmulady 1:9ba884d85ac6 31 char buffer[32];
cmulady 3:8e492eacd346 32 unsigned char irdata_out=0;
cmulady 3:8e492eacd346 33 unsigned char irdata_in=0;
cmulady 6:5563f0026858 34 char irdatOUT[10];
cmulady 6:5563f0026858 35 char irdatIN[10];
cmulady 6:5563f0026858 36 char error_code=0;
cmulady 1:9ba884d85ac6 37
cmulady 3:8e492eacd346 38 //Function Prototypes
cmulady 1:9ba884d85ac6 39 void BlinkAlive(void const* arguments);
cmulady 1:9ba884d85ac6 40 void UpdateLCD(void const* arguments);
cmulady 3:8e492eacd346 41 void IRStuff(void const* arguments);
cmulady 6:5563f0026858 42 void MakePacket(char* data,int len);
cmulady 6:5563f0026858 43 char CheckPacket(char* data, int data_size);
cmulady 1:9ba884d85ac6 44
cmulady 1:9ba884d85ac6 45
cmulady 1:9ba884d85ac6 46 int main()
cmulady 1:9ba884d85ac6 47 {
cmulady 0:c8ddcaa575ba 48
cmulady 3:8e492eacd346 49 //LCD init
cmulady 0:c8ddcaa575ba 50 lcd.background(0x000000);
cmulady 1:9ba884d85ac6 51
cmulady 3:8e492eacd346 52 //PWM init
cmulady 3:8e492eacd346 53 IRLED_mod.period(1.0/38000.0); //38kHz Modulation Freq
cmulady 3:8e492eacd346 54 IRLED_mod = 0.5; //pulse width = 50%
cmulady 3:8e492eacd346 55
cmulady 3:8e492eacd346 56 //Serial init
cmulady 3:8e492eacd346 57 device.baud(2400);
cmulady 3:8e492eacd346 58
cmulady 6:5563f0026858 59 //PC serial init
cmulady 6:5563f0026858 60 pc.baud(19200);
cmulady 6:5563f0026858 61
cmulady 3:8e492eacd346 62 //Thread init
cmulady 1:9ba884d85ac6 63 Thread thread_blinkalive(BlinkAlive);
cmulady 1:9ba884d85ac6 64 Thread thread_updatelcd(UpdateLCD);
cmulady 3:8e492eacd346 65 Thread thread_irstuff(IRStuff);
cmulady 1:9ba884d85ac6 66
cmulady 1:9ba884d85ac6 67
cmulady 1:9ba884d85ac6 68
cmulady 0:c8ddcaa575ba 69 while(1) {
cmulady 1:9ba884d85ac6 70 thread_updatelcd.signal_set(0x1);
cmulady 1:9ba884d85ac6 71 Thread::wait(1000/FPS);
cmulady 1:9ba884d85ac6 72
cmulady 0:c8ddcaa575ba 73 }
cmulady 0:c8ddcaa575ba 74 }
cmulady 1:9ba884d85ac6 75
cmulady 1:9ba884d85ac6 76 void UpdateLCD(void const* arguments)
cmulady 1:9ba884d85ac6 77 {
cmulady 6:5563f0026858 78 /*while(true) {
cmulady 1:9ba884d85ac6 79 led2 = 1;
cmulady 1:9ba884d85ac6 80 lcd.locate(0,1);
cmulady 1:9ba884d85ac6 81 lcd.printf("Debug:");
cmulady 1:9ba884d85ac6 82
cmulady 1:9ba884d85ac6 83 lcd.locate(0,3);
cmulady 1:9ba884d85ac6 84 time_t seconds = time(NULL);
cmulady 1:9ba884d85ac6 85 strftime(buffer, 32, "%I:%M:%S %p\n", localtime(&seconds));
cmulady 1:9ba884d85ac6 86 lcd.printf("%s", buffer);
cmulady 1:9ba884d85ac6 87
cmulady 3:8e492eacd346 88 lcd.locate(0,4);
cmulady 6:5563f0026858 89 lcd.printf("IR_OUT=0x%02X,0x%02X", irdatOUT[0],irdatOUT[1]);
cmulady 3:8e492eacd346 90 lcd.locate(0,5);
cmulady 6:5563f0026858 91 lcd.printf("IR_IN= 0x%02X,0x%02X", irdatIN[0],irdatIN[1]);
cmulady 6:5563f0026858 92 lcd.locate(0,6);
cmulady 6:5563f0026858 93 lcd.printf("Error= 0x%02X", error_code);
cmulady 3:8e492eacd346 94
cmulady 3:8e492eacd346 95
cmulady 3:8e492eacd346 96
cmulady 1:9ba884d85ac6 97 //End - Sleep thread
cmulady 1:9ba884d85ac6 98 led2 = 0;
cmulady 1:9ba884d85ac6 99 Thread::signal_wait(0x1);
cmulady 6:5563f0026858 100 }*/
cmulady 1:9ba884d85ac6 101 }
cmulady 1:9ba884d85ac6 102
cmulady 3:8e492eacd346 103 void IRStuff(void const* arguments)
cmulady 3:8e492eacd346 104 {
cmulady 3:8e492eacd346 105 while(true) {
cmulady 6:5563f0026858 106 //error_code = CheckPacket(irdatIN,2);
cmulady 6:5563f0026858 107
cmulady 6:5563f0026858 108 while(device.readable())
cmulady 6:5563f0026858 109 {
cmulady 6:5563f0026858 110 char tempdata = device.getc();
cmulady 6:5563f0026858 111 if(tempdata==0x02) pc.printf("\n");
cmulady 6:5563f0026858 112 pc.printf("0x%02X.",tempdata);
cmulady 3:8e492eacd346 113 }
cmulady 6:5563f0026858 114
cmulady 6:5563f0026858 115 //pc.printf("\n\nERROR=0x%02X\n\n",error_code);
cmulady 6:5563f0026858 116 Thread::wait(3000);
cmulady 3:8e492eacd346 117 }
cmulady 4:8fdff78c13c8 118
cmulady 3:8e492eacd346 119 }
cmulady 3:8e492eacd346 120
cmulady 1:9ba884d85ac6 121 void BlinkAlive(void const* arguments)
cmulady 1:9ba884d85ac6 122 {
cmulady 1:9ba884d85ac6 123 while(true) {
cmulady 1:9ba884d85ac6 124 led1 = !led1;
cmulady 6:5563f0026858 125
cmulady 6:5563f0026858 126 irdatOUT[0] = 0xA5;
cmulady 6:5563f0026858 127 irdatOUT[1] = ++irdata_out;
cmulady 6:5563f0026858 128 MakePacket(irdatOUT,2);
cmulady 6:5563f0026858 129
cmulady 6:5563f0026858 130 Thread::wait(20);
cmulady 6:5563f0026858 131 }
cmulady 6:5563f0026858 132 }
cmulady 6:5563f0026858 133
cmulady 6:5563f0026858 134 void MakePacket(char* data,int len)
cmulady 6:5563f0026858 135 {
cmulady 6:5563f0026858 136 //pc.printf("\nMaking Packet:\n\t");
cmulady 6:5563f0026858 137 char check =0x0;
cmulady 6:5563f0026858 138 device.putc(0x02);
cmulady 6:5563f0026858 139 //pc.printf("0x%02X.",0x02);
cmulady 6:5563f0026858 140 for(int i=0; i<len; i++) {
cmulady 6:5563f0026858 141 check^=data[i];
cmulady 6:5563f0026858 142 device.putc(data[i]);
cmulady 6:5563f0026858 143 //pc.printf("0x%02X.",data[i]);
cmulady 1:9ba884d85ac6 144 }
cmulady 6:5563f0026858 145 device.putc(check);
cmulady 6:5563f0026858 146 //pc.printf("0x%02X.",check);
cmulady 6:5563f0026858 147 //pc.printf("\nDone making packet.\n");
cmulady 6:5563f0026858 148 }
cmulady 6:5563f0026858 149
cmulady 6:5563f0026858 150 char CheckPacket(char* data, int data_size)
cmulady 6:5563f0026858 151 //returns success(0) or failure(error code)
cmulady 6:5563f0026858 152 {
cmulady 6:5563f0026858 153 Timer t;
cmulady 6:5563f0026858 154 t.reset();
cmulady 6:5563f0026858 155 t.start();
cmulady 6:5563f0026858 156 char tempdata=0x0;
cmulady 6:5563f0026858 157 char check=0x0;
cmulady 6:5563f0026858 158
cmulady 6:5563f0026858 159 pc.printf("\nChecking Packet\n\t");
cmulady 6:5563f0026858 160 //Data available
cmulady 6:5563f0026858 161 if(!device.readable()) {
cmulady 6:5563f0026858 162 pc.printf("no data");
cmulady 6:5563f0026858 163 return 0x4; //no data
cmulady 6:5563f0026858 164 }
cmulady 6:5563f0026858 165
cmulady 6:5563f0026858 166 while(!device.readable());
cmulady 6:5563f0026858 167 //while(!device.readable() && t.read_ms()<=UART_TIMEOUT);
cmulady 6:5563f0026858 168 //if(t.read_ms()>=UART_TIMEOUT)
cmulady 6:5563f0026858 169 // return 0x3; //timeout error
cmulady 6:5563f0026858 170 tempdata = device.getc();
cmulady 6:5563f0026858 171
cmulady 6:5563f0026858 172 //STX recieved
cmulady 6:5563f0026858 173 if(tempdata!=0x02) {
cmulady 6:5563f0026858 174 pc.printf("found bad data: 0x%02X",tempdata);
cmulady 6:5563f0026858 175 if(tempdata==0xFF) device.getc(); //flush
cmulady 6:5563f0026858 176 return 0x1; //bad start byte
cmulady 6:5563f0026858 177 }
cmulady 6:5563f0026858 178
cmulady 6:5563f0026858 179 //Get Data
cmulady 6:5563f0026858 180 for(int i=0; i<data_size; i++) {
cmulady 6:5563f0026858 181 while(!device.readable());
cmulady 6:5563f0026858 182 //while(!device.readable() && t.read_ms()<=UART_TIMEOUT);
cmulady 6:5563f0026858 183 //if(t.read_ms()>=UART_TIMEOUT)
cmulady 6:5563f0026858 184 // return 0x3; //timeout error
cmulady 6:5563f0026858 185 data[i] = device.getc();
cmulady 6:5563f0026858 186 check ^= data[i];
cmulady 6:5563f0026858 187 }
cmulady 6:5563f0026858 188 //Get Checksum
cmulady 6:5563f0026858 189 while(!device.readable());
cmulady 6:5563f0026858 190 //while(!device.readable() && t.read_ms()<=UART_TIMEOUT);
cmulady 6:5563f0026858 191 //if(t.read_ms()>=UART_TIMEOUT)
cmulady 6:5563f0026858 192 // return 0x3; //timeout error
cmulady 6:5563f0026858 193 tempdata = device.getc();
cmulady 6:5563f0026858 194 if(tempdata!=check)
cmulady 6:5563f0026858 195 return 0x2; //bad checksum
cmulady 6:5563f0026858 196
cmulady 6:5563f0026858 197
cmulady 6:5563f0026858 198 return 0;
cmulady 6:5563f0026858 199
cmulady 6:5563f0026858 200 }
cmulady 6:5563f0026858 201