usart.lst

以NRF905芯片为核心的PTR8000模块的AVR驱动.驱动芯片为AVR mega16或者AVR mega32.内部详尽的操作流程和时序.包括CRC16校验.主从机通讯.

   1               		.file	"usart.c"
   2               	__SREG__ = 0x3f
   3               	__SP_H__ = 0x3e
   4               	__SP_L__ = 0x3d
   5               	__CCP__  = 0x34
   6               	__tmp_reg__ = 0
   7               	__zero_reg__ = 1
   8               		.global __do_copy_data
   9               		.global __do_clear_bss
  17               	.Ltext0:
  18               	.global	usart_init
  20               	usart_init:
  21               	.LFB6:
  22               	.LM1:
  23               	.LVL0:
  24               	/* prologue: function */
  25               	/* frame size = 0 */
  26               	.LM2:
  27 0000 90BD      		out 64-32,r25
  28               	.LVL1:
  29               	.LM3:
  30 0002 89B9      		out 41-32,r24
  31               	.LM4:
  32 0004 88ED      		ldi r24,lo8(-40)
  33               	.LVL2:
  34 0006 8AB9      		out 42-32,r24
  35               	.LM5:
  36 0008 8EE8      		ldi r24,lo8(-114)
  37 000a 80BD      		out 64-32,r24
  38               	/* epilogue start */
  39               	.LM6:
  40 000c 0895      		ret
  41               	.LFE6:
  43               	.global	usart_transmit
  45               	usart_transmit:
  46               	.LFB7:
  47               	.LM7:
  48               	/* prologue: function */
  49               	/* frame size = 0 */
  50               	.LVL3:
  51               	.L4:
  52               	.LM8:
  53 000e 5D9B      		sbis 43-32,5
  54 0010 00C0      		rjmp .L4
  55               	.LM9:
  56 0012 8CB9      		out 44-32,r24
  57               	/* epilogue start */
  58               	.LM10:
  59 0014 0895      		ret
  60               	.LFE7:
  62               	.global	usart_receive
  64               	usart_receive:
  65               	.LFB8:
  66               	.LM11:
  67               	/* prologue: function */
  68               	/* frame size = 0 */
  69               	.LM12:
  70 0016 8BB1      		in r24,43-32
  71               	.LM13:
  72 0018 8CB1      		in r24,44-32
  73               	/* epilogue start */
  74               	.LM14:
  75 001a 0895      		ret
  76               	.LFE8:
 118               	.Letext0:
DEFINED SYMBOLS
                            *ABS*:00000000 usart.c
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cccE6hHp.s:2      *ABS*:0000003f __SREG__
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cccE6hHp.s:3      *ABS*:0000003e __SP_H__
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cccE6hHp.s:4      *ABS*:0000003d __SP_L__
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cccE6hHp.s:5      *ABS*:00000034 __CCP__
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cccE6hHp.s:6      *ABS*:00000000 __tmp_reg__
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cccE6hHp.s:7      *ABS*:00000001 __zero_reg__
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cccE6hHp.s:20     .text:00000000 usart_init
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cccE6hHp.s:45     .text:0000000e usart_transmit
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cccE6hHp.s:64     .text:00000016 usart_receive

UNDEFINED SYMBOLS
__do_copy_data
__do_clear_bss