UART3Interrupt.cpp

00001 #include "mbed.h"
00002 #include <stdint.h>
00003 #include "UART3Interrupt.h"
00004 #include "configs.h"
00005 
00006 char RXBuffer[DATA_SIZE];                         // UART3 RX Buffer
00007 //volatile uint8_t IntBuff[900];                 // Interrupt Buffer
00008 //static volatile uint8_t *RXHeadPtr;                  // Buffer Head Pointer
00009 //static volatile uint8_t *RXTailPtr;                  // Buffer Tail Pointer 
00010 //static volatile uint16_t move = 0;                       
00011 //uint8_t status = 0;
00012 volatile uint16_t RX_c = 0;   
00013 
00014 void SerialRecvInterrupt (void) {                 // UART3 Serial Interrupt Handler
00015     
00016     while ( LPC_UART3->LSR & (0<<1) ) {}     
00017     *(RXBuffer+RX_c) = LPC_UART3->RBR;          // Receive data from UART3 RX
00018     
00019     if (RXBuffer[RX_c] != RXBuffer[RX_c-1]) {
00020        // led3 =!led3;    
00021     }
00022     
00023     RX_c++;
00024     
00025     if ( RX_c == 300 )
00026     { 
00027        status = 1;
00028     }
00029         
00030 }
00031 
00032 void RXFrameSync (void) {
00033     
00034 //    led1 = !led1;
00035 //    led4 = !led4;
00036     
00037     RX_c = 0;
00038     status = 0;
00039 }
00040 
00041 
00042 
00043 
00044 
00045 
00046 
00047 
00048 
00049 
00050 
00051 
00052 
00053 
00054 /* 
00055 void initRX (void) {
00056     
00057 RXHeadPtr = IntBuff;     // Initial state
00058 RXHeadPtr = RXTailPtr;    
00059 
00060 }
00061 
00062 void SerialRecvInterrupt (void)       // UART3 Serial Interrupt Handler
00063 {   
00064     static uint8_t data = 0;
00065     while ( LPC_UART3->LSR &= (0<<1) ) {}     
00066     // *(RXBuffer+idx) = LPC_UART3->RBR;           Receive data from UART3 RX
00067     
00068     data = LPC_UART3->RBR;                 // Receive data from UART3 RX
00069      
00070     RXHeadPtr = &data;
00071     
00072     RXHeadPtr++;
00073     move++;
00074     
00075         if ( RXHeadPtr ==  (IntBuff+899) )
00076         { 
00077            RXHeadPtr = IntBuff;
00078         }
00079         
00080 }
00081 
00082 void RcvRX( void ) {
00083     
00084     static uint16_t p = 0;
00085     static uint8_t data = 0;
00086     
00087     if ( move ) {
00088          
00089          data = *RXTailPtr;
00090          
00091          RXBuffer[p] = data;    
00092          RXTailPtr++;
00093          move--;
00094          p++;
00095     }
00096     
00097     if ( RXTailPtr ==  (IntBuff+899) ) { 
00098          RXTailPtr = IntBuff;
00099     }
00100     
00101     if ( p == 300 ) {
00102         processRX = 1;
00103         p = 0;
00104     }    
00105     
00106 }
00107 */