main.txt

该代码在KEIL平台基础上实现LPC2132与MAX485进行RS485通信

; generated by ARM/Thumb C/C++ Compiler with , RVCT3.0 [Build 951] for uVision
; commandline ArmCC [--debug -c --asm --interleave -o"G:\BYSJ CODE\TEST SPI\output\main.o" --device=DARMP --apcs=interwork -O0 -IC:\Keil\ARM\INC\Philips "G:\BYSJ CODE\TEST SPI\main.c"]

                          ARM

                          AREA ||.text.7||, CODE, READONLY, ALIGN=2

                  DelayNS PROC
;;;6      	
;;;7      	for ( ; dly>0; dly--)
000000  ea000006          B        |L1.32|
;;;8      		for (i=0; i<50000; i++);
                  |L1.4|
000004  e3a01000          MOV      r1,#0
000008  ea000000          B        |L1.16|
                  |L1.12|
00000c  e2811001          ADD      r1,r1,#1
                  |L1.16|
000010  e59f203c          LDR      r2,|L1.84|
000014  e1510002          CMP      r1,r2
000018  bafffffb          BLT      |L1.12|
00001c  e2400001          SUB      r0,r0,#1              ;7
                  |L1.32|
000020  e3500000          CMP      r0,#0                 ;7
000024  cafffff6          BGT      |L1.4|                ;7
;;;9      }
000028  e12fff1e          BX       lr
                          ENDP

                  main PROC
;;;11     int  main(void)
;;;12     {
00002c  e92d4010          PUSH     {r4,lr}
;;;13        uint8 temp; 
;;;14        SSP_Init();
000030  ebfffffe          BL       SSP_Init
;;;15       for(;;)
000034  e1a00000          MOV      r0,r0
;;;16       {
;;;17         temp++;
                  |L1.56|
000038  e2840001          ADD      r0,r4,#1
00003c  e20040ff          AND      r4,r0,#0xff
;;;18       	DelayNS(50);
000040  e3a00032          MOV      r0,#0x32
000044  ebfffffe          BL       DelayNS
;;;19         SSP_SendData(temp);
000048  e1a00004          MOV      r0,r4
00004c  ebfffffe          BL       SSP_SendData
000050  eafffff8          B        |L1.56|
                  |L1.84|
000054  0000c350          DCD      0x0000c350
;;;20       }
;;;21       return  0;
;;;22     }
                          ENDP