f06x_uart1_interrupt.lst

// This program demonstrates how to configure the C8051F060 to write to and read // from the UART i

C51 COMPILER V8.08   F06X_UART1_INTERRUPT                                                  02/02/2008 09:37:19 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE F06X_UART1_INTERRUPT
OBJECT MODULE PLACED IN F06x_UART1_Interrupt.OBJ
COMPILER INVOKED BY: C:\SiLabs\MCU\IDEfiles\C51\BIN\C51.exe F06x_UART1_Interrupt.c DB OE

line level    source

   1          //-----------------------------------------------------------------------------
   2          // F06x_UART1_Interrupt.c
   3          //-----------------------------------------------------------------------------
   4          // Copyright 2006 Silicon Laboratories, Inc.
   5          // http://www.silabs.com
   6          //
   7          // Program Description:
   8          //
   9          // This program demonstrates how to configure the C8051F060 to write to and read
  10          // from the UART interface. The program reads a word using the UART1 interrupts
  11          // and outputs that word to the screen, with all characters in uppercase
  12          //
  13          // How To Test:
  14          //
  15          // 1) Download code to a 'F060 target board
  16          // 2) Connect serial cable from the transceiver to a PC
  17          // 3) On the PC, open HyperTerminal (or any other terminal program) and connect
  18          //    to the COM port at <BAUDRATE> and 8-N-1
  19          // 4) Type up to 64 characters into the Terminal and press Enter.  The MCU 
  20          //    will then print back the characters that were typed
  21          //
  22          //
  23          // Target:         C8051F06x
  24          // Tool chain:     Keil C51 7.50 / Keil EVAL C51
  25          // Command Line:   None
  26          //
  27          // Release 1.0
  28          //    -Initial Revision (SM)
  29          //    -6 JUN 2007
  30          //
  31          
  32          //-----------------------------------------------------------------------------
  33          // Includes
  34          //-----------------------------------------------------------------------------
  35          
  36          #include <C8051F060.h>                 // SFR declarations
  37          #include <stdio.h>
  38          
  39          //-----------------------------------------------------------------------------
  40          // 16-bit SFR Definitions for 'F06x
  41          //-----------------------------------------------------------------------------
  42          
  43          sfr16 RCAP2    = 0xCA;                 // Timer2 capture/reload
  44          sfr16 TMR2     = 0xCC;                 // Timer2
  45          
  46          //-----------------------------------------------------------------------------
  47          // Global Constants
  48          //-----------------------------------------------------------------------------
  49          
  50          #define BAUDRATE     115200            // Baud rate of UART in bps
  51          
  52          // SYSTEMCLOCK = System clock frequency in Hz
  53          //#define SYSTEMCLOCK       22118400L
  54          #define SYSTEMCLOCK       24000000L
  55          //-----------------------------------------------------------------------------
C51 COMPILER V8.08   F06X_UART1_INTERRUPT                                                  02/02/2008 09:37:19 PAGE 2   

  56          // Function Prototypes
  57          //-----------------------------------------------------------------------------
  58          
  59          void OSCILLATOR_Init (void);
  60          void PORT_Init (void);
  61          void UART1_Init (void);
  62          
  63          //-----------------------------------------------------------------------------
  64          // Global Variables
  65          //-----------------------------------------------------------------------------
  66          
  67          #define UART_BUFFERSIZE 5
  68          unsigned char UART_Buffer[UART_BUFFERSIZE];
  69          unsigned char UART_Buffer_Size = 0;
  70          unsigned char UART_Input_First = 0;
  71          unsigned char UART_Output_First = 0;
  72          unsigned char TX_Ready =1;
  73          static char Byte;
  74          
  75          //-----------------------------------------------------------------------------
  76          // main() Routine
  77          //-----------------------------------------------------------------------------
  78          
  79          void main (void)
  80          {
  81   1      
  82   1         SFRPAGE = CONFIG_PAGE;
  83   1      
  84   1         WDTCN = 0xDE;                       // Disable watchdog timer
  85   1         WDTCN = 0xAD;
  86   1      
  87   1         OSCILLATOR_Init ();                 // Initialize oscillator
  88   1         PORT_Init ();                       // Initialize crossbar and GPIO
  89   1      
  90   1         UART1_Init ();                      // Initialize UART1
  91   1      
  92   1         EA = 1;
  93   1      
  94   1         SFRPAGE = UART1_PAGE;
  95   1      
  96   1         while (1)
  97   1         {  // If the complete word has been entered via the terminal followed
  98   2            // by carriage return
  99   2            if((TX_Ready == 1) && (UART_Buffer_Size != 0) && (Byte == 67))
 100   2            {
 101   3               TX_Ready = 0;                  // Set the flag to zero
 102   3      
 103   3               TI1 = 1;                       // Set transmit flag to 1
 104   3            }
 105   2         }
 106   1      }
 107          
 108          //-----------------------------------------------------------------------------
 109          // Initialization Subroutines
 110          //-----------------------------------------------------------------------------
 111          
 112          //-----------------------------------------------------------------------------
 113          // OSCILLATOR_Init
 114          //-----------------------------------------------------------------------------
 115          //
 116          // Return Value : None
 117          // Parameters   : None
C51 COMPILER V8.08   F06X_UART1_INTERRUPT                                                  02/02/2008 09:37:19 PAGE 3   

 118          //
 119          // This function initializes the system clock to use an external 22.1184MHz
 120          // crystal.
 121          //
 122          //-----------------------------------------------------------------------------
 123          void OSCILLATOR_Init (void)
 124          {
 125   1         int i;                              // Software timer
 126   1      
 127   1         char SFRPAGE_SAVE = SFRPAGE;        // Save Current SFR page
 128   1      
 129   1         SFRPAGE = CONFIG_PAGE;              // Set SFR page
 130   1      
 131   1         OSCICN = 0x83;                      // Set internal oscillator to run
 132   1                                             // at its slowest frequency
 133   1      
 134   1         CLKSEL = 0x00;                      // Select the internal osc. as
 135   1                                             // the SYSTEMCLOCK source
 136   1      
 137   1         // Initialize external crystal oscillator to use 22.1184 MHz crystal
 138   1      
 139   1         OSCXCN = 0x67;                      // Enable external crystal osc.
 140   1         for (i=0; i < 256; i++);            // Wait at least 1ms
 141   1      
 142   1         while (!(OSCXCN & 0x80));           // Wait for crystal osc to settle
 143   1      
 144   1         CLKSEL = 0x01;
 145   1         // Select external crystal as SYSTEMCLOCK source   
 146   1      
 147   1         SFRPAGE = SFRPAGE_SAVE;             // Restore SFRPAGE
 148   1      }
 149          
 150          //-----------------------------------------------------------------------------
 151          // PORT_Init
 152          //-----------------------------------------------------------------------------
 153          //