f411_vr.lst

用c8051f410和FLASH（SPI接口）实现的数字录音机。

C51 COMPILER V7.06   F411_VR                                                               02/18/2009 16:30:48 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE F411_VR
OBJECT MODULE PLACED IN F411_VR.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE F411_VR.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          //-----------------------------------------------------------------------------
   2          // F411_VR.c
   3          //-----------------------------------------------------------------------------
   4          // Copyright 2006 Silicon Laboratories, Inc.
   5          // http://www.silabs.com
   6          //
   7          // Program Description:
   8          //
   9          // This program uses the DPCM functions to encode voice samples and saves them
  10          // to flash memory.  This program also interfaces with a speaker or headphones
  11          // to play back the recorded voice.
  12          //
  13          // How To Use:    See Readme.txt
  14          //
  15          // FID:            41X000005
  16          // Target:         C8051F411
  17          // Tool chain:     Keil C51 7.50 / Keil EVAL C51
  18          //                 Silicon Laboratories IDE version 2.6
  19          // Project Name:   F411_VR
  20          //
  21          // Release 1.3
  22          //    -All changes by TP
  23          //    -02 Feb 2006
  24          //    -minor changes in comments
  25          //
  26          // Release 1.2
  27          //    -All changes by TP
  28          //    -21 Nov 2005
  29          //    -Revised for a 2-button version of the board with
  30          //       volume wheel.
  31          //
  32          // Release 1.1
  33          //    -All changes by TP
  34          //    -16 Aug 2004
  35          //    -project version updated, no changes to this file
  36          //
  37          // Release 1.0
  38          //    -Initial Revision (TP)
  39          //    -15 AUG 2004
  40          //
  41          
  42          
  43          //-----------------------------------------------------------------------------
  44          // Includes
  45          //-----------------------------------------------------------------------------
  46          #include <c8051f410.h>                 // SFR declarations
  47          #include "F411_VR_DPCM.h"              // contains DPCM functions
  48          #include "F411_VR_SSTFlash.h"          // contains functions to write to the
  49                                                 // serial SST external 512 kb Flash
  50          #include "F411_VR_LED.h"               // contains functions to control the
  51                                                 // intensity of the LEDs
  52          
  53          //-----------------------------------------------------------------------------
  54          // 16-bit SFR Definitions for 'F411
  55          //-----------------------------------------------------------------------------
C51 COMPILER V7.06   F411_VR                                                               02/18/2009 16:30:48 PAGE 2   

  56          
  57          // SFR16 Defintions (Timers, ADC, and DAC)
  58          sfr16 TMR2RL = 0xCA;                   // Timer 2 Reload address
  59          sfr16 TMR2 = 0xCC;                     // Timer 2 Counter address
  60          sfr16 TMR3RL = 0x92;                   // Timer 3 Reload address
  61          sfr16 TMR3 = 0x94;                     // Timer 3 Counter address
  62          sfr16 ADC0DAT = 0xBD;                  // ADC 16-bit address
  63          sfr16 IDA0DAT = 0x96;                  // IDAC 16-bit address
  64          
  65          //-----------------------------------------------------------------------------
  66          // Global CONSTANTS
  67          //-----------------------------------------------------------------------------
  68          
  69          // General Constants
  70          #define SYSCLK 6125000                 // system clock in Hz (24.5 MHz / 4)
  71          
  72          // T1 runs at SYSCLK / 48
  73          #define POLLING 1992                   // poll the switches at 64 Hz
  74          #define PRCHANGE 20000                 // wait approx. 150ms after a button is
  75                                                 // pressed to "debounce" the switches
  76          
  77          #define SAMP_FREQ 764                  // use 8kHz sampling for both the ADC
  78                                                 // and DAC
  79          
  80          #define MAX_MEM_ADDR 0x0007FFFF        // 512K = 2^19 address bits
  81          #define NEAR_END_ADDR 0x00065F55       // for every 4 samples, 3 bytes are
  82                                                 // written to memory, so 10.67 kHz
  83                                                 // ((8 kHz * 4)/3) writing time = 106666
  84                                                 // addresses every 10 seconds, so give
  85                                                 // about 10 seconds of warning
  86          
  87          #define mid_range 2048                 // middle value of 12-bit ADC and DAC
  88          
  89          // System States
  90          #define IDLE 0x00                      // indicates no current action
  91          #define RECORDING 0x01                 // indicates the device is recording
  92          #define PLAYING 0x02                   // indicates the device is playing
  93          #define END_MEM 0x04                   // flag used if the end of memory is
  94                                                 // reached
  95          #define ERASED 0x08                    // flag used if memory is erased
  96          
  97          // Port Pin Definitions
  98          sbit REC_PLAY = P1^7;
  99          sbit ERASE = P1^6;
 100          sbit TRANS = P1^3;
 101          sbit LED0 = P2^1;
 102          sbit LED1 = P2^0;
 103          
 104          sbit SCK = P0^4;
 105          sbit MISO = P0^5;
 106          sbit MOSI = P0^6;
 107          sbit NSS = P0^7;
 108          
 109          //-----------------------------------------------------------------------------
 110          // Global VARIABLES
 111          //-----------------------------------------------------------------------------
 112          
 113          unsigned char system_state = IDLE;     // start in idle mode
 114                                                 // bit 3 of the system_state indicates
 115                                                 // if the end of memory has been
 116                                                 // reached
 117                                                 // bit 4 of the system_state indicates
C51 COMPILER V7.06   F411_VR                                                               02/18/2009 16:30:48 PAGE 3   

 118                                                 // if the memory has been erased since
 119                                                 // the last action (1 = erased)
 120          
 121          
 122          // Ending address of the recording in memory
 123          unsigned long rec_end_addr = 0x00000000;
 124          
 125          // flags to communicate between the T1 ISR and the ADC/DAC ISRs for various
 126          // termination events
 127          bit ADC_STOP_FLAG = 0;
 128          bit MEM_END_NEAR_FLAG = 0;
 129          bit MEM_END_FLAG = 0;
 130          bit REC_END_FLAG = 0;
 131          bit DAC_STOP_FLAG = 0;
 132          bit ENTER_SUSPEND = 0;
 133          
 134          //-----------------------------------------------------------------------------
 135          // Function PROTOTYPES
 136          //-----------------------------------------------------------------------------