serial.lst

lcd interface code for lpc214x series micro controllers

ARM COMPILER V0.07,  serial                                                                26/11/04  11:06:08  PAGE 1   


ARM COMPILER V0.07, COMPILATION OF MODULE serial
OBJECT MODULE PLACED IN serial.OBJ
COMPILER INVOKED BY: C:\KEIL\ARM\BIN\CA.EXE serial.c TABS(4) 

stmt  level    source

    1          /******************************************************************************/
    2          /*  This file is part of the uVision/ARM development tools                    */
    3          /*  Copyright KEIL ELEKTRONIK GmbH 2002-2004                                  */
    4          /******************************************************************************/
    5          /*                                                                            */
    6          /*  SERIAL.C:  Low Level Serial Routines                                      */
    7          /*                                                                            */
    8          /******************************************************************************/
    9          
   10          //#include <LPC21xx.H>                     /* LPC21xx definitions               */
   11          #include "lpc210x.h"
   12          #define CR     0x0D
   13          
   14          
   15          void init_serial_1 (void)  {               /* Initialize Serial Interface       */
   16   1        PINSEL0 = 0x00050000;                  /* Enable RxD1 and TxD1              */ 
   17   1        UART1_LCR = 0x83;                      /* 8 bits, no Parity, 1 Stop bit     */
   18   1        UART1_DLL = 97;                        /* 9600 Baud Rate @ 15MHz VPB Clock  */
   19   1        UART1_LCR = 0x03;                      /* DLAB = 0                          */
   20   1      }
   21          
   22          
   23          int putchar_1 (int ch)  {                  /* Write character to Serial Port    */
   24   1      
   25   1        if (ch == '\n')  {
   26   2          while (!(UART1_LSR & 0x20));
   27   2          UART1_THR = CR;                      /* output CR */
   28   2        }
   29   1        while (!(UART1_LSR & 0x20));
   30   1        return (UART1_THR = ch);
   31   1      }
   32          
   33          
   34          int getchar_1 (void)  {                    /* Read character from Serial Port   */
   35   1      
   36   1        while (!(UART1_LSR & 0x01));
   37   1      
   38   1        return (UART1_RBR);
   39   1      }
   40          
   41          //  ****************************
   42          
   43          
   44          void init_serial_0 (void)  {               /* Initialize Serial Interface       */
   45   1        PINSEL0 = 0x00000005;                  /* Enable RxD0 and TxD0              */ 
   46   1        UART0_LCR = 0x83;                      /* 8 bits, no Parity, 1 Stop bit     */
   47   1        UART0_DLL = 97;                        /* 9600 Baud Rate @ 15MHz VPB Clock  */
   48   1        UART0_LCR = 0x03;                      /* DLAB = 0                          */
   49   1      
   50   1      
   51   1      // defines
   52   1      
   53   1      // UART_BAUD calculates a division rate given a baud rate
   54   1      // for use with uart0Init() and uart1Init()
   55   1      // example: uart0Init(UART_BAUD(115200), UART_8N1, UART_FIFO_8);
   56   1      //
   57   1      // BEWARE: additional code will be generated if 'baud' is not a contant
   58   1      //#define UART_BAUD(baud) (uint16_t)((PCLK+baud*8L)/(baud*16))
   59   1      
ARM COMPILER V0.07,  serial                                                                26/11/04  11:06:08  PAGE 2   

   60   1      
   61   1      
   62   1          // set the baudrate
   63   1      //  U0LCR = ULCR_DLAB_ENABLE;             // select divisor latches 
   64   1      //  U0DLL = (uint8_t)baud;                // set for baud low byte
   65   1      //  U0DLM = (uint8_t)(baud >> 8);         // set for baud high byte
   66   1      
   67   1      
   68   1      
   69   1      
   70   1      }
   71          
   72          
   73          int putchar_0 (int ch)  {                  /* Write character to Serial Port    */
   74   1      
   75   1        if (ch == '\n')  {
   76   2          while (!(UART0_LSR & 0x20));
   77   2          UART0_THR = CR;                      /* output CR */
   78   2        }
   79   1        while (!(UART0_LSR & 0x20));
   80   1        return (UART0_THR = ch);
   81   1      }
   82          
   83          
   84          int getchar_0 (void)  {                    /* Read character from Serial Port   */
   85   1      
   86   1        while (!(UART0_LSR & 0x01));
   87   1      
   88   1        return (UART0_RBR);
   89   1      }

ARM COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)