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📄 main_hyperterm.lst

📁 胎压检测系统接收部分源码
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                                                                   ;Disable COP
                      266  
 E0C6 [05] CDE040     267                  JSR     Init_Vars                   
                                                      ;Initialize RAM variables
 E0C9 [04] ADCD       268                  BSR     Init_Ports                  
                                                                ;Initialize I/O
 E0CB [04] ADC2       269                  BSR     Init_ICG                    
                                                   ;Initialize external crystal
 E0CD [04] ADB7       270                  BSR     Init_KBD                    
                                                ;Initialize keyboard interrupts
 E0CF [04] ADE3       271                  BSR     Init_Timer                  
                                                          ;Initialize the timer
 E0D1 [04] ADD1       272                  BSR     Init_SCI                    
                                                            ;Initialize the SCI
 E0D3 [04] ADD9       273                  BSR     Init_TBM                    
                                                            ;Initialize the TBM
                      274  
 E0D5 [01] 4F         275                  CLRA
 E0D6 [01] 8C         276                  CLRH
 E0D7 [01] 5F         277                  CLRX
 E0D8 [02] 9A         278                  CLI
 E0D9 [04] 81         279                  RTS
 E0DA                 280  $Include        'LEDCont.asm'
                      281  * LEDCont.asm
                      282  
                      283  ****************************************************
                                                             ******************
                      284  * Contains the controls for all the LEDs.           
                                                                              *
                      285  * PTA[0] = RX                                       
                                                                              *
                      286  * PTB[0] = LF                                       
                                                                              *


Main_Hyperterm.asm     Assembled with CASM08Z  1/28/2003  9:41:14 PM  PAGE 8



                      287  * PTB[1] = LR                                       
                                                                              *
                      288  * PTB[2] = RR                                       
                                                                              *
                      289  * PTB[3] = RF                                       
                                                                              *
                      290  ****************************************************
                                                             ******************
                      291  
 E0DA [03] B601       292  BlinkLEDs:      LDA     PTB                         
                                        ;Flash the LEDs to indicate to the user
 E0DC [02] AA0F       293                  ORA     #%00001111                  
                                      ;that the module is on, and the Romeo2 is
 E0DE [03] B701       294                  STA     PTB                         
                                                          ;configured properly.
 E0E0 [04] 1000       295                  BSET    0,PTA
 E0E2 [02] AEFF       296                  LDX     #$FF
 E0E4 [05] CDE2BB     297                  JSR     Delay
                      298  
 E0E7 [03] B601       299                  LDA     PTB
 E0E9 [02] A4F0       300                  AND     #%11110000
 E0EB [03] B701       301                  STA     PTB
 E0ED [04] 1100       302                  BCLR    0,PTA
 E0EF [04] 81         303                  RTS
                      304  
 E0F0 [03] B601       305  TurnOnLEDs:     LDA     PTB                         
                                      ;Turn on all LEDs to indicate to the user
 E0F2 [02] AA0F       306                  ORA     #%00001111                  
                                       ;that there's a problem with the module.
 E0F4 [03] B701       307                  STA     PTB                         
                                      ;Code is still running to try to recover,
 E0F6 [04] 1000       308                  BSET    0,PTA                       
                                     ;but if the LEDs stay on persistently then
 E0F8 [04] 81         309                  RTS                                 
                                   ;there's probably a bad connection to Romeo.
                      310  
 E0F9 [02] AE10       311  LED_Flicker:    LDX     #$10
 E0FB [01] 4F         312  L0:             CLRA                                
                                      ;The Rx LED will flicker to indicate that
                      313                                                      
                                      ;something was received, but the checksum
 E0FC [04] 1000       314                  BSET    0,PTA                       
                                   ;did not match so the data is not processed.
 E0FE [03] 4BFE       315                  DBNZA   *
 E100 [04] 1100       316                  BCLR    0,PTA
 E102 [03] 4BFE       317                  DBNZA   *
 E104 [03] 5BF5       318                  DBNZX   L0
 E106 [03] B65B       319                  LDA     FAST_MODE
 E108 [03] 2702       320                  BEQ     Flick_Done
 E10A [04] 1000       321                  BSET    0,PTA
 E10C [04] 81         322  Flick_Done:     RTS
                      323  
 E10D [03] B65B       324  Blink_Rx:       LDA     FAST_MODE
 E10F [03] 2704       325                  BEQ     Blink
 E111 [04] 1000       326                  BSET    0,PTA
 E113 [03] 2009       327                  BRA     DoneBlink
                      328  
 E115 [02] AE20       329  Blink:          LDX     #$20                        


Main_Hyperterm.asm     Assembled with CASM08Z  1/28/2003  9:41:14 PM  PAGE 9



                                   ;The Rx LED will blink once to indicate that
 E117 [04] 1000       330                  BSET    0,PTA                       
                                                       ;good data was received.
 E119 [05] CDE2BB     331                  JSR     Delay
 E11C [04] 1100       332                  BCLR    0,PTA
 E11E [04] 81         333  DoneBlink:      RTS
                      334  
                      335  ****************************************************
                                                             ******************
                      336  * ProcessData                                       
                                                                              *
                      337  * Process the (already confirmed valid) data frame, 
                                                             and send tire    *
                      338  * status, position and data to the user.            
                                                                              *
                      339  * DATA + 7: ID1                                     
                                                                              *
                      340  * DATA + 6: ID2                                     
                                                                              *
                      341  * DATA + 5: ID3                                     
                                                                              *
                      342  * DATA + 4: ID4                                     
                                                                              *
                      343  * DATA + 3: PRESSURE                                
                                                                              *
                      344  * DATA + 2: TEMPERATURE                             
                                                                              *
                      345  * DATA + 1: STATUS (bit 7=LVIOUT, bit 6=LOWV, bit 
                                                           4=FastTx)          *
                      346  * DATA + 0: CHECKSUM                                
                                                                              *
                      347  * PTB[0] = LF                                       
                                                                              *
                      348  * PTB[1] = LR                                       
                                                                              *
                      349  * PTB[2] = RR                                       
                                                                              *
                      350  * PTB[3] = RF                                       
                                                                              *
                      351  *                                                   
                                                                              *
                      352  * Position is stored in the STATUS byte (DATA + 1) 
                                                            for the device    *
                      353  * receiving the serial data.                        
                                                                              *
                      354  * STATUS[3] high -> LF                              
                                                                              *
                      355  * STATUS[2] high -> RF                              
                                                                              *
                      356  * STATUS[1] high -> LR                              
                                                                              *
                      357  * STATUS[0] high -> RR                              
                                                                              *
                      358  ****************************************************
                                                             ******************
 E11F [03] B64A       359  ProcessData:    LDA     DATA+1
 E121 [03] 2702       360                  BEQ     FindPos
 E123 [04] 1E5B       361                  BSET    7,FAST_MODE                 


Main_Hyperterm.asm     Assembled with CASM08Z  1/28/2003  9:41:14 PM  PAGE 10



                                          ;Flag that this tire is in fast mode.
                      362  
 E125 [03] B650       363  FindPos:        LDA     DATA+7                      
                                                      ;Check all tire ID bytes.
 E127 [03] B163       364                  CMP     LFID
 E129 [03] 2634       365                  BNE     L1
 E12B [03] B64F       366                  LDA     DATA+6
 E12D [03] B164       367                  CMP     LFID+1
 E12F [03] 262E       368                  BNE     L1
 E131 [03] B64E       369                  LDA     DATA+5
 E133 [03] B165       370                  CMP     LFID+2
 E135 [03] 2628       371                  BNE     L1
 E137 [03] B64D       372                  LDA     DATA+4
 E139 [03] B166       373                  CMP     LFID+3
 E13B [03] 2622       374                  BNE     L1
                      375  
 E13D [03] 3F52       376  LF_Match:       CLR     LFCNTL
 E13F [03] 3F51       377                  CLR     LFCNTH
 E141 [04] 164A       378                  BSET    3,DATA+1                    
                                                 ;Indicate which tire in STATUS
 E143 [05] CDE10D     379                  JSR     Blink_Rx                    
                                                             ;Blink the Rx LED.
 E146 [05] 0F5B04     380                  BRCLR   7,FAST_MODE,LF
 E149 [04] 105B       381                  BSET    0,FAST_MODE                 
                                        ;Flag that the LF tire is in fast mode.
 E14B [03] 2002       382                  BRA     LF1
                      383  
 E14D [04] 115B       384  LF:             BCLR    0,FAST_MODE
 E14F [03] B64C       385  LF1:            LDA     DATA+3                      
                                                            ;Check the pressure
 E151 [03] B162       386                  CMP     THRESHOLD
 E153 [03] 2205       387                  BHI     LF_OK
 E155 [04] 1001       388                  BSET    0,PTB                       
                                                      ;Pressure low: light LED.
 E157 [03] CCE205     389                  JMP     EXIT
 E15A [04] 1101       390  LF_OK:          BCLR    0,PTB                       
                                                     ;Pressure okay: clear LED.
 E15C [03] CCE205     391                  JMP     EXIT
                      392  
 E15F [03] B650       393  L1:             LDA     DATA+7                      

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