STM32的新实例程序

; generated by ARM C/C++ Compiler, 4.1 [Build 713] ; commandline ArmCC [--list --split_sections --debug -c --asm --interleave -o.\Obj\usb_core.o --asm_dir=.\List\ --list_dir=.\List\ --depend=.\Obj\usb_core.d --cpu=Cortex-M3 --apcs=interwork -O3 -I.\usb_library\inc -IC:\Keil\ARM\CMSIS\Include -IC:\Keil\ARM\INC\ST\STM32F10x -D__MICROLIB -DVECT_TAB_FLASH --omf_browse=.\Obj\usb_core.crf usb_library\src\usb_core.c] THUMB AREA ||i.DataStageIn||, CODE, READONLY, ALIGN=2 DataStageIn PROC ;;;482 *******************************************************************************/ ;;;483 void DataStageIn(void) 000000 e92d47f0 PUSH {r4-r10,lr} ;;;484 { ;;;485 ENDPOINT_INFO *pEPinfo = &pInformation->Ctrl_Info; 000004 f8df9074 LDR r9,|L1.124| ;;;486 u32 save_wLength = pEPinfo->Usb_wLength; ;;;487 u32 ControlState = pInformation->ControlState; ;;;488 ;;;489 u8 *DataBuffer; ;;;490 u32 Length; ;;;491 ;;;492 if ((save_wLength == 0) && (ControlState == LAST_IN_DATA)) ;;;493 { ;;;494 /* no more data to send so STALL the TX Status*/ ;;;495 ControlState = WAIT_STATUS_OUT; ;;;496 vSetEPTxStatus(EP_TX_STALL); 000008 f8df8074 LDR r8,|L1.128| 00000c f8d91000 LDR r1,[r9,#0] ;485 ; pInformation 000010 f1010510 ADD r5,r1,#0x10 ;485 000014 8a08 LDRH r0,[r1,#0x10] ;486 000016 7a09 LDRB r1,[r1,#8] ;487 000018 b908 CBNZ r0,|L1.30| 00001a 2904 CMP r1,#4 ;492 00001c d029 BEQ |L1.114| |L1.30| ;;;497 goto Expect_Status_Out; ;;;498 } ;;;499 ;;;500 Length = pEPinfo->PacketSize; 00001e 88ac LDRH r4,[r5,#4] ;;;501 ControlState = (save_wLength <= Length) ? LAST_IN_DATA : IN_DATA; 000020 2604 MOVS r6,#4 000022 42a0 CMP r0,r4 000024 d900 BLS |L1.40| 000026 2602 MOVS r6,#2 |L1.40| ;;;502 ;;;503 if (Length > save_wLength) 000028 4284 CMP r4,r0 00002a d900 BLS |L1.46| ;;;504 { ;;;505 Length = save_wLength; 00002c 4604 MOV r4,r0 |L1.46| ;;;506 } ;;;507 ;;;508 DataBuffer = (*pEPinfo->CopyData)(Length); 00002e b2a0 UXTH r0,r4 000030 68a9 LDR r1,[r5,#8] 000032 4607 MOV r7,r0 000034 4788 BLX r1 000036 4682 MOV r10,r0 ;;;509 ;;;510 UserToPMABufferCopy(DataBuffer, GetEPTxAddr(ENDP0), Length); 000038 2000 MOVS r0,#0 00003a f7fffffe BL GetEPTxAddr 00003e 4601 MOV r1,r0 000040 463a MOV r2,r7 000042 4650 MOV r0,r10 000044 f7fffffe BL UserToPMABufferCopy 000048 4639 MOV r1,r7 ;;;511 ;;;512 SetEPTxCount(ENDP0, Length); 00004a 2000 MOVS r0,#0 00004c f7fffffe BL SetEPTxCount ;;;513 ;;;514 pEPinfo->Usb_wLength -= Length; 000050 8828 LDRH r0,[r5,#0] ;;;515 pEPinfo->Usb_wOffset += Length; ;;;516 vSetEPTxStatus(EP_TX_VALID); 000052 2130 MOVS r1,#0x30 000054 1b00 SUBS r0,r0,r4 ;514 000056 8028 STRH r0,[r5,#0] ;514 000058 8868 LDRH r0,[r5,#2] ;515 00005a 4420 ADD r0,r0,r4 ;515 00005c 8068 STRH r0,[r5,#2] ;515 00005e f8a81000 STRH r1,[r8,#0] ;;;517 ;;;518 USB_StatusOut();/* Expect the host to abort the data IN stage */ 000062 0208 LSLS r0,r1,#8 000064 4907 LDR r1,|L1.132| 000066 8008 STRH r0,[r1,#0] |L1.104| ;;;519 ;;;520 Expect_Status_Out: ;;;521 pInformation->ControlState = ControlState; 000068 f8d90000 LDR r0,[r9,#0] ; pInformation 00006c 7206 STRB r6,[r0,#8] ;;;522 } 00006e e8bd87f0 POP {r4-r10,pc} |L1.114| 000072 2607 MOVS r6,#7 ;495 000074 2110 MOVS r1,#0x10 ;496 000076 f8a81000 STRH r1,[r8,#0] ;496 00007a e7f5 B |L1.104| ;;;523 ENDP |L1.124| DCD pInformation |L1.128| DCD SaveTState |L1.132| DCD SaveRState AREA ||i.DataStageOut||, CODE, READONLY, ALIGN=2 DataStageOut PROC ;;;425 *******************************************************************************/ ;;;426 void DataStageOut(void) 000000 e92d47f0 PUSH {r4-r10,lr} ;;;427 { ;;;428 ENDPOINT_INFO *pEPinfo = &pInformation->Ctrl_Info; 000004 4e23 LDR r6,|L2.148| ;;;429 u32 save_rLength; ;;;430 ;;;431 save_rLength = pEPinfo->Usb_rLength; ;;;432 ;;;433 if (pEPinfo->CopyData && save_rLength) ;;;434 { ;;;435 u8 *Buffer; ;;;436 u32 Length; ;;;437 ;;;438 Length = pEPinfo->PacketSize; ;;;439 if (Length > save_rLength) ;;;440 { ;;;441 Length = save_rLength; ;;;442 } ;;;443 ;;;444 Buffer = (*pEPinfo->CopyData)(Length); ;;;445 pEPinfo->Usb_rLength -= Length; ;;;446 pEPinfo->Usb_rOffset += Length; ;;;447 ;;;448 PMAToUserBufferCopy(Buffer, GetEPRxAddr(ENDP0), Length); ;;;449 } ;;;450 ;;;451 if (pEPinfo->Usb_rLength != 0) ;;;452 { ;;;453 vSetEPRxStatus(EP_RX_VALID);/* re-enable for next data reception */ ;;;454 SetEPTxCount(ENDP0, 0); ;;;455 vSetEPTxStatus(EP_TX_VALID);/* Expect the host to abort the data OUT stage */ 000006 f8df9090 LDR r9,|L2.152| 00000a f04f0830 MOV r8,#0x30 00000e 6834 LDR r4,[r6,#0] ;431 ; pInformation 000010 f8340f10 LDRH r0,[r4,#0x10]! ;431 000014 68a1 LDR r1,[r4,#8] ;433 000016 b1b1 CBZ r1,|L2.70| 000018 b308 CBZ r0,|L2.94| 00001a 88a5 LDRH r5,[r4,#4] ;438 00001c 4285 CMP r5,r0 ;439 00001e d900 BLS |L2.34| 000020 4605 MOV r5,r0 ;441 |L2.34| 000022 b2a8 UXTH r0,r5 ;444 000024 4607 MOV r7,r0 ;444 000026 4788 BLX r1 ;444 000028 4682 MOV r10,r0 ;444 00002a 8820 LDRH r0,[r4,#0] ;445 00002c 1b40 SUBS r0,r0,r5 ;445 00002e 8020 STRH r0,[r4,#0] ;445 000030 8860 LDRH r0,[r4,#2] ;446 000032 4428 ADD r0,r0,r5 ;446 000034 8060 STRH r0,[r4,#2] ;446 000036 2000 MOVS r0,#0 ;448 000038 f7fffffe BL GetEPRxAddr 00003c 4601 MOV r1,r0 ;448 00003e 463a MOV r2,r7 ;448 000040 4650 MOV r0,r10 ;448 000042 f7fffffe BL PMAToUserBufferCopy