main.cpp

00001 #include "mbed.h"
00002 #include "C12832.h"
00003 #include "USB400Serial.h"
00004 
00005 C12832 lcd(p5, p7, p6, p8, p11);
00006 
00007 DigitalOut led1(LED1);
00008 DigitalOut led2(LED2);
00009 DigitalOut led3(LED3);
00010 DigitalOut led4(LED4);
00011 Serial pc(USBTX, USBRX);
00012 
00013 uint8_t u8CRC8Table[256] = {
00014     0x00, 0x07, 0x0e, 0x09, 0x1c, 0x1b, 0x12, 0x15,
00015     0x38, 0x3f, 0x36, 0x31, 0x24, 0x23, 0x2a, 0x2d,
00016     0x70, 0x77, 0x7e, 0x79, 0x6c, 0x6b, 0x62, 0x65,
00017     0x48, 0x4f, 0x46, 0x41, 0x54, 0x53, 0x5a, 0x5d,
00018     0xe0, 0xe7, 0xee, 0xe9, 0xfc, 0xfb, 0xf2, 0xf5,
00019     0xd8, 0xdf, 0xd6, 0xd1, 0xc4, 0xc3, 0xca, 0xcd,
00020     0x90, 0x97, 0x9e, 0x99, 0x8c, 0x8b, 0x82, 0x85,
00021     0xa8, 0xaf, 0xa6, 0xa1, 0xb4, 0xb3, 0xba, 0xbd,
00022     0xc7, 0xc0, 0xc9, 0xce, 0xdb, 0xdc, 0xd5, 0xd2,
00023     0xff, 0xf8, 0xf1, 0xf6, 0xe3, 0xe4, 0xed, 0xea,
00024     0xb7, 0xb0, 0xb9, 0xbe, 0xab, 0xac, 0xa5, 0xa2,
00025     0x8f, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9d, 0x9a,
00026     0x27, 0x20, 0x29, 0x2e, 0x3b, 0x3c, 0x35, 0x32,
00027     0x1f, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0d, 0x0a,
00028     0x57, 0x50, 0x59, 0x5e, 0x4b, 0x4c, 0x45, 0x42,
00029     0x6f, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7d, 0x7a,
00030     0x89, 0x8e, 0x87, 0x80, 0x95, 0x92, 0x9b, 0x9c,
00031     0xb1, 0xb6, 0xbf, 0xb8, 0xad, 0xaa, 0xa3, 0xa4,
00032     0xf9, 0xfe, 0xf7, 0xf0, 0xe5, 0xe2, 0xeb, 0xec,
00033     0xc1, 0xc6, 0xcf, 0xc8, 0xdd, 0xda, 0xd3, 0xd4,
00034     0x69, 0x6e, 0x67, 0x60, 0x75, 0x72, 0x7b, 0x7c,
00035     0x51, 0x56, 0x5f, 0x58, 0x4d, 0x4a, 0x43, 0x44,
00036     0x19, 0x1e, 0x17, 0x10, 0x05, 0x02, 0x0b, 0x0c,
00037     0x21, 0x26, 0x2f, 0x28, 0x3d, 0x3a, 0x33, 0x34,
00038     0x4e, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5c, 0x5b,
00039     0x76, 0x71, 0x78, 0x7f, 0x6A, 0x6d, 0x64, 0x63,
00040     0x3e, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2c, 0x2b,
00041     0x06, 0x01, 0x08, 0x0f, 0x1a, 0x1d, 0x14, 0x13,
00042     0xae, 0xa9, 0xa0, 0xa7, 0xb2, 0xb5, 0xbc, 0xbb,
00043     0x96, 0x91, 0x98, 0x9f, 0x8a, 0x8D, 0x84, 0x83,
00044     0xde, 0xd9, 0xd0, 0xd7, 0xc2, 0xc5, 0xcc, 0xcb,
00045     0xe6, 0xe1, 0xe8, 0xef, 0xfa, 0xfd, 0xf4, 0xf3
00046 };
00047 
00048 #define proccrc8(u8CRC, u8Data) (u8CRC8Table[u8CRC ^ u8Data])
00049 
00050 void serial_task(void const*)
00051 {
00052     USB400Serial serial;
00053     int i;
00054     int dataLength;
00055     int optionalLength;
00056     uint8_t c;
00057     uint8_t crc;
00058     int sensor = 0;
00059     int humidity = 0;
00060     int temperature = 0;
00061 
00062     while(1) {
00063 
00064         while(!serial.connect())
00065             Thread::wait(500);
00066 
00067         while (1) {
00068 
00069             if (!serial.connected())
00070                 break;
00071 
00072             if (serial.available()) {
00073                 c = serial.getc();
00074 
00075                 if (c == 0x55) {
00076                     crc = 0;
00077 
00078                     c = serial.getc();
00079                     crc = proccrc8(crc, c);
00080                     dataLength = c;
00081 
00082                     c = serial.getc();
00083                     crc = proccrc8(crc, c);
00084                     dataLength = (dataLength << 8) | c;
00085 
00086                     c = serial.getc();
00087                     crc = proccrc8(crc, c);
00088                     optionalLength = c;
00089 
00090                     c = serial.getc();
00091                     crc = proccrc8(crc, c); // packet type
00092 
00093                     c = serial.getc();
00094                     crc = proccrc8(crc, c); // CRC
00095 
00096                     if (crc == 0) {
00097                         crc = 0;
00098 
00099                         for (i = 0; i < dataLength; i++) {
00100                             c = serial.getc();
00101                             crc = proccrc8(crc, c);
00102 
00103                             if (i == 4) {                           
00104                                 // printf("Sensor: %02X ", c);
00105                                 sensor = c;
00106                             }
00107                             //A5-04-01
00108                             if (i == 6) {
00109                                 humidity = c;
00110                             }
00111                             if (i == 7) {
00112                                 temperature = c;
00113                             }
00114                         }
00115 
00116                         // printf("hum:%3.1f%% temp:%2.2fC\r\n", humidity*0.4, temperature*0.16);
00117 
00118                         if (sensor == 0x34) {
00119                             lcd.locate(0,12);
00120                             lcd.printf("%02X Temp:%2.2f C Hum:%3.1f %%\r\n", sensor, temperature*0.16, humidity*0.4);
00121                         }
00122 
00123                         if (sensor == 0x52) {
00124                             lcd.locate(0,21);
00125                             lcd.printf("%02X Temp:%2.2f C Hum:%3.1f %%\r\n", sensor, temperature*0.16, humidity*0.4);
00126                         }
00127 
00128                         for (i = 0; i < optionalLength; i++) {
00129                             c = serial.getc();
00130                             crc = proccrc8(crc, c);
00131                         }
00132 
00133                         c = serial.getc();
00134                         crc = proccrc8(crc, c);
00135 
00136                     }
00137                 }
00138             }
00139         }
00140     }
00141 }
00142 
00143 int main()
00144 {
00145     lcd.cls();
00146     lcd.locate(0,3);
00147     lcd.printf("mbed application board!");
00148     
00149     Thread serialTask(serial_task, NULL, osPriorityNormal, 256 * 4);
00150     while(1) {
00151         led1 = !led1;
00152         Thread::wait(500);
00153     }
00154 }